OMagnifier first update

2021-06-04 16:17:26 +08:00 · 2021-06-04 16:17:26 +08:00 · c083d900ca
--- a/.idea/.gitignore
+++ b/.idea/.gitignore
@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml
--- a/.idea/.name
+++ b/.idea/.name
@ -0,0 +1 @@
+magnifier
--- a/.idea/compiler.xml
+++ b/.idea/compiler.xml
@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="11" />
+  </component>
+</project>
--- a/.idea/jarRepositories.xml
+++ b/.idea/jarRepositories.xml
@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RemoteRepositoriesConfiguration">
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Maven Central repository" />
+      <option name="url" value="https://repo1.maven.org/maven2" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="jboss.community" />
+      <option name="name" value="JBoss Community repository" />
+      <option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="BintrayJCenter" />
+      <option name="name" value="BintrayJCenter" />
+      <option name="url" value="https://jcenter.bintray.com/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="Google" />
+      <option name="name" value="Google" />
+      <option name="url" value="https://dl.google.com/dl/android/maven2/" />
+    </remote-repository>
+  </component>
+</project>
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/build/classes" />
+  </component>
+  <component name="ProjectType">
+    <option name="id" value="Android" />
+  </component>
+</project>
--- a/.idea/runConfigurations.xml
+++ b/.idea/runConfigurations.xml
@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RunConfigurationProducerService">
+    <option name="ignoredProducers">
+      <set>
+        <option value="com.android.tools.idea.compose.preview.runconfiguration.ComposePreviewRunConfigurationProducer" />
+      </set>
+    </option>
+  </component>
+</project>
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@ -0,0 +1,65 @@
+# Contribution Guidelines
+
+Thank you for your interest in Verifiable Credentials!
+
+This project welcomes contributions and suggestions. Most contributions require you to
+agree to a Contributor License Agreement (CLA) declaring that you have the right to,
+and actually do, grant us the rights to use your contribution.
+
+For details, visit https://cla.microsoft.com.
+
+When you submit a pull request, a CLA-bot will automatically determine whether you need
+to provide a CLA and decorate the PR appropriately (e.g., label, comment). Simply follow the
+instructions provided by the bot. You will only need to do this once across all repositories using our CLA.
+
+This project has adopted the Microsoft Open Source Code of Conduct.
+For more information see the Code of Conduct FAQ
+or contact opencode@microsoft.com with any additional questions or comments.
+
+Contributions come in many forms: submitting issues, writing code, participating in discussions and community calls.
+
+This document provides the guidelines for how to contribute to the Verifiable Credentials Wallet SDK project.
+
+## Issues
+
+This section describes the guidelines for submitting issues
+
+### Issue Types
+
+There are 4 types of issues:
+
+- Issue/Bug: You've found a bug with the code, and want to report it, or create an issue to track the bug.
+- Issue/Discussion: You have something on your mind, which requires input form others in a discussion, before it eventually manifests as a proposal.
+- Issue/Proposal: Used for items that propose a new idea or functionality. This allows feedback from others before code is written.
+- Issue/Question: Use this issue type, if you need help or have a question.
+
+## Contributing
+
+This section describes the guidelines for contributing code / docs to the project.
+
+### Pull Requests
+
+All contributions come through pull requests. To submit a proposed change, we recommend following this workflow:
+
+1. Make sure there's an issue (bug or proposal) raised, which sets the expectations for the contribution you are about to make.
+2. Fork the relevant repo and create a new branch
+3. Create your change
+    - Code changes require tests
+4. Update relevant documentation for the change
+5. Commit and open a PR
+6. Wait for the CI process to finish and make sure all checks are green
+7. A maintainer of the project will be assigned, and you can expect a review within a few days
+
+#### Use work-in-progress PRs for early feedback
+
+A good way to communicate before investing too much time is to create a "Work-in-progress" PR and share it with your reviewers. The standard way of doing this is to add a "[WIP]" prefix in your PR's title and assign the **do-not-merge** label. This will let people looking at your PR know that it is not well baked yet.
+
+### Use of Third-party code
+
+- Third-party code must include licenses.
+
+**Thank You!** - Your contributions to open source, large or small, make projects like this possible. Thank you for taking the time to contribute.
+
+## Code of Conduct
+
+This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/).
--- a/README.md
+++ b/README.md
@ -1,18 +1,119 @@
-# Project
+# OMagnifier

-> This repo has been populated by an initial template to help get you started. Please
-> make sure to update the content to build a great experience for community-building.
+OMagnifier is an Android APM SDK that can be used to monitor the app performance.
+
+## Features Support
+- [x] Frame rate monitor: floating window for showing fps
+- [x] Memory usage metrics monitor: monitor and collect the memeory usage metrics
+- [ ] Memory usage viewer
+- [ ] Battery usage monitor
+
+## APIs
+### Frame rate monitor
+
+1. Start frame rate monitor
+```kotlin
+Magnifier.startMonitorFPS(
+    FPSMonitorConfig.Builder(this.application)
+        .lowPercentage(40 / 60f)  // show red tips, (2.0f / 3.0f) by default
+        .mediumPercentage(50 / 60f) // show yellow tips, (5.0f / 6.0f) by default
+        .refreshRate(60f) // defaultDisplay.refreshRate by default
+        .build()
+)
+```
+
+2. Stop frame rate monitor
+```kotlin
+Magnifier.stopMonitorFPS()
+```
+
+### Memory usage monitor
+
+The mectrics we support now:
+
+- `HeapMemoryInfo`: heap memory and vss/pss memory
+- `FileDescriptorInfo`: file readlink and max open file count
+- `ThreadInfo`: thread count and thread stack trace
+
+1. Start Memory usage metrics monitor
+
+```kotlin
+MemoryMonitorConfig.Builder()
+    .enableExceedLimitSample(0.8f, // the benchmark for Exceed_Limit type sampler, if we reach out 80% the max, collect the metrics, 0.8f by default
+        10000 // the threshold for Exceed_Limit type sampler, 10s by default
+    )
+    .enableTimingSample(60 * 1000) // threshold for the timing checker, 1 min by default
+    .onSampleListener(object : MemoryMonitor.OnSampleListener {
+        override fun onSampleHeap(
+            heapMemoryInfo: HeapMemoryInfo,
+            sampleType: MemoryMonitor.SampleType
+        ) {
+            Log.d(TAG, "heapMemoryInfo:$heapMemoryInfo,sampleType:$sampleType")
+        }
+
+        override fun onSampleFile(
+            fileDescriptorInfo: FileDescriptorInfo,
+            sampleType: MemoryMonitor.SampleType
+        ) {
+            Log.d(TAG, "fileDescriptorInfo:${fileDescriptorInfo.fdMaxCount},sampleType:$sampleType")
+        }
+
+        override fun onSampleThread(
+            threadInfo: ThreadInfo,
+            sampleType: MemoryMonitor.SampleType
+        ) {
+            Log.d(TAG, "threadInfo:${threadInfo.threadsCount},sampleType:$sampleType")
+        }
+    }).build()
+```
+
+2. Collect the memory usage metrics immdiately
+
+```koltin
+Magnifier.dumpMemoryImmediately(object : MemoryMonitor.OnSampleListener {
+    override fun onSampleHeap(
+        heapMemoryInfo: HeapMemoryInfo,
+        sampleType: MemoryMonitor.SampleType
+    ) {
+        Log.d(TAG, "heapMemoryInfo:$heapMemoryInfo,sampleType:$sampleType")
+    }
+
+    override fun onSampleFile(
+        fileDescriptorInfo: FileDescriptorInfo,
+        sampleType: MemoryMonitor.SampleType
+    ) {
+        Log.d(TAG, "fileDescriptorInfo:${fileDescriptorInfo.fdMaxCount},sampleType:$sampleType")
+    }
+
+    override fun onSampleThread(
+        threadInfo: ThreadInfo,
+        sampleType: MemoryMonitor.SampleType
+    ) {
+        Log.d(TAG, "threadInfo:${threadInfo.threadsCount},sampleType:$sampleType")
+    }
+})
+```
+
+
+3. Stop frame rate monitor
+
+```kotlin
+Magnifier.stopMonitorMemory()
+```
+
+## Demo
+
+The demo is under Module app.
+
+1. Install the app
+2. Run the app
+3. Click the button for testing

-As the maintainer of this project, please make a few updates:

- Improving this README.MD file to provide a great experience
- Updating SUPPORT.MD with content about this project's support experience
- Understanding the security reporting process in SECURITY.MD
- Remove this section from the README

 ## Contributing

-This project welcomes contributions and suggestions.  Most contributions require you to agree to a
+This project welcomes contributions and suggestions. Most contributions require you to agree to a
 Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us
 the rights to use your contribution. For details, visit https://cla.opensource.microsoft.com.

@ -24,10 +125,8 @@ This project has adopted the [Microsoft Open Source Code of Conduct](https://ope
 For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or
 contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any additional questions or comments.

-## Trademarks
+## License

-This project may contain trademarks or logos for projects, products, or services. Authorized use of Microsoft 
-trademarks or logos is subject to and must follow 
-[Microsoft's Trademark & Brand Guidelines](https://www.microsoft.com/en-us/legal/intellectualproperty/trademarks/usage/general).
-Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship.
-Any use of third-party trademarks or logos are subject to those third-party's policies.
+Copyright (c) Microsoft Corporation. All rights reserved.
+
+Licensed under the [MIT](LICENSE) license.
--- a/SECURITY.md
+++ b/SECURITY.md
@ -1,10 +1,10 @@
-<!-- BEGIN MICROSOFT SECURITY.MD V0.0.5 BLOCK -->
+<!-- BEGIN MICROSOFT SECURITY.MD V0.0.3 BLOCK -->

 ## Security

 Microsoft takes the security of our software products and services seriously, which includes all source code repositories managed through our GitHub organizations, which include [Microsoft](https://github.com/Microsoft), [Azure](https://github.com/Azure), [DotNet](https://github.com/dotnet), [AspNet](https://github.com/aspnet), [Xamarin](https://github.com/xamarin), and [our GitHub organizations](https://opensource.microsoft.com/).

-If you believe you have found a security vulnerability in any Microsoft-owned repository that meets [Microsoft's definition of a security vulnerability](https://docs.microsoft.com/en-us/previous-versions/tn-archive/cc751383(v=technet.10)), please report it to us as described below.
+If you believe you have found a security vulnerability in any Microsoft-owned repository that meets Microsoft's [Microsoft's definition of a security vulnerability](https://docs.microsoft.com/en-us/previous-versions/tn-archive/cc751383(v=technet.10)) of a security vulnerability, please report it to us as described below.

 ## Reporting Security Issues

@ -12,9 +12,9 @@ If you believe you have found a security vulnerability in any Microsoft-owned re

 Instead, please report them to the Microsoft Security Response Center (MSRC) at [https://msrc.microsoft.com/create-report](https://msrc.microsoft.com/create-report).

-If you prefer to submit without logging in, send email to [secure@microsoft.com](mailto:secure@microsoft.com).  If possible, encrypt your message with our PGP key; please download it from the [Microsoft Security Response Center PGP Key page](https://www.microsoft.com/en-us/msrc/pgp-key-msrc).
+If you prefer to submit without logging in, send email to [secure@microsoft.com](mailto:secure@microsoft.com).  If possible, encrypt your message with our PGP key; please download it from the the [Microsoft Security Response Center PGP Key page](https://www.microsoft.com/en-us/msrc/pgp-key-msrc).

-You should receive a response within 24 hours. If for some reason you do not, please follow up via email to ensure we received your original message. Additional information can be found at [microsoft.com/msrc](https://www.microsoft.com/msrc). 
+You should receive a response within 24 hours. If for some reason you do not, please follow up via email to ensure we received your original message. Additional information can be found at [microsoft.com/msrc](https://www.microsoft.com/msrc).

 Please include the requested information listed below (as much as you can provide) to help us better understand the nature and scope of the possible issue:

@ -38,4 +38,4 @@ We prefer all communications to be in English.

 Microsoft follows the principle of [Coordinated Vulnerability Disclosure](https://www.microsoft.com/en-us/msrc/cvd).

-<!-- END MICROSOFT SECURITY.MD BLOCK -->
+<!-- END MICROSOFT SECURITY.MD BLOCK -->
--- a/app/.gitignore
+++ b/app/.gitignore
@ -0,0 +1 @@
+/build
--- a/app/build.gradle
+++ b/app/build.gradle
@ -0,0 +1,51 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+plugins {
+    id 'com.android.application'
+    id 'kotlin-android'
+}
+
+android {
+    compileSdkVersion 30
+    buildToolsVersion "30.0.3"
+
+    defaultConfig {
+        applicationId "com.microsoft.office.outlook.magnifier"
+        minSdkVersion 16
+        targetSdkVersion 30
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+}
+
+dependencies {
+
+    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
+    implementation 'androidx.core:core-ktx:1.3.2'
+    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation 'com.google.android.material:material:1.3.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
+    testImplementation 'junit:junit:4.+'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
+    implementation project(':magnifierlib')
+}
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
--- a/app/src/androidTest/java/com/microsoft/office/outlook/magnifier/ExampleInstrumentedTest.kt
+++ b/app/src/androidTest/java/com/microsoft/office/outlook/magnifier/ExampleInstrumentedTest.kt
@ -0,0 +1,29 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+package com.microsoft.office.outlook.magnifier
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.microsoft.office.outlook.magnifier", appContext.packageName)
+    }
+}
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (c) Microsoft Corporation. All rights reserved.
+  ~ Licensed under the MIT License.
+  -->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.microsoft.office.outlook.magnifier">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.Magnifier">
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
--- a/app/src/main/java/com/microsoft/office/outlook/magnifier/MainActivity.kt
+++ b/app/src/main/java/com/microsoft/office/outlook/magnifier/MainActivity.kt
@ -0,0 +1,133 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+package com.microsoft.office.outlook.magnifier
+
+import android.app.Activity
+import android.os.Bundle
+import android.util.Log
+import android.widget.Button
+import com.microsoft.office.outlook.magnifierlib.Magnifier
+import com.microsoft.office.outlook.magnifierlib.frame.FPSMonitorConfig
+import com.microsoft.office.outlook.magnifierlib.memory.FileDescriptorInfo
+import com.microsoft.office.outlook.magnifierlib.memory.HeapMemoryInfo
+import com.microsoft.office.outlook.magnifierlib.memory.MemoryMonitor
+import com.microsoft.office.outlook.magnifierlib.memory.MemoryMonitorConfig
+import com.microsoft.office.outlook.magnifierlib.memory.ThreadInfo
+
+class MainActivity : Activity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+
+        val buttonStartFPS = findViewById<Button>(R.id.button_fps_start)
+        val buttonStopFPS = findViewById<Button>(R.id.button_fps_stop)
+        val buttonSleep = findViewById<Button>(R.id.button_fps_sleep)
+        val buttonStartMemory = findViewById<Button>(R.id.button_start_memory)
+        val buttonStopMemory = findViewById<Button>(R.id.button_stop_memory)
+        val buttonIncreaseMemory = findViewById<Button>(R.id.button_increase_memory)
+        val buttonDumpMemory = findViewById<Button>(R.id.button_dump_memory_immediately)
+
+        buttonStartFPS.setOnClickListener {
+            Magnifier.startMonitorFPS(
+                FPSMonitorConfig.Builder(this.application).lowPercentage(40 / 60f)  // show red tips, (2.0f / 3.0f) by default
+                    .mediumPercentage(50 / 60f) // show yellow tips, (5.0f / 6.0f) by default
+                    .refreshRate(60f) // defaultDisplay.refreshRate by default
+                    .build()
+            )
+            Log.i(TAG, "after startMonitorFPS isEnabledFPSMonitor: ${Magnifier.isEnabledFPSMonitor()}")
+        }
+
+        buttonStopFPS.setOnClickListener {
+            Magnifier.stopMonitorFPS()
+            Log.i(TAG, "after stopMonitorFPS isEnabledFPSMonitor: ${Magnifier.isEnabledFPSMonitor()}")
+        }
+
+        buttonSleep.setOnClickListener {
+            Thread.sleep(100)
+        }
+
+        buttonStartMemory.setOnClickListener {
+            Log.i(TAG, "before startMonitorMemory isEnableMemoryMonitor: ${Magnifier.isEnabledMemoryMonitor()}")
+            Magnifier.startMonitorMemory(
+                MemoryMonitorConfig.Builder().enableExceedLimitSample(
+                    0.8f, // the benchmark for Exceed_Limit type sampler, if we reach out 80% the max, collect the metrics, 0.8f by default
+                    10000 // the threshold for Exceed_Limit type sampler, 10s by default
+                ).enableTimingSample(60 * 1000) // threshold for the timing checker, 1 min by default
+                    .onSampleListener(object : MemoryMonitor.OnSampleListener {
+                        override fun onSampleHeap(
+                            heapMemoryInfo: HeapMemoryInfo,
+                            sampleType: MemoryMonitor.SampleType
+                        ) {
+                            Log.d(TAG, "heapMemoryInfo:$heapMemoryInfo,sampleType:$sampleType")
+                        }
+
+                        override fun onSampleFile(
+                            fileDescriptorInfo: FileDescriptorInfo,
+                            sampleType: MemoryMonitor.SampleType
+                        ) {
+                            Log.d(TAG, "fileDescriptorInfo:${fileDescriptorInfo.fdMaxCount},sampleType:$sampleType")
+                        }
+
+                        override fun onSampleThread(
+                            threadInfo: ThreadInfo,
+                            sampleType: MemoryMonitor.SampleType
+                        ) {
+                            Log.d(TAG, "threadInfo:${threadInfo.threadsCount},sampleType:$sampleType")
+                        }
+                    }).build()
+            )
+            Log.i(TAG, "after startMonitorMemory isEnableMemoryMonitor: ${Magnifier.isEnabledMemoryMonitor()}")
+        }
+
+        buttonStopMemory.setOnClickListener {
+            Log.i(TAG, "before stopMonitorMemory isEnableMemoryMonitor: ${Magnifier.isEnabledMemoryMonitor()}")
+            Magnifier.stopMonitorMemory()
+            Log.i(TAG, "after stopMonitorMemory isEnableMemoryMonitor: ${Magnifier.isEnabledMemoryMonitor()}")
+        }
+
+        buttonIncreaseMemory.setOnClickListener {
+            val list = ArrayList<Any>()
+            Thread {
+                val used = Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory()
+                val totalFree = Runtime.getRuntime().maxMemory() - used
+                val arr = ByteArray((totalFree * 0.85).toInt()){
+                    1
+                }
+                list.add(arr)
+            }.start()
+        }
+
+        buttonDumpMemory.setOnClickListener {
+            Magnifier.dumpMemoryImmediately(object : MemoryMonitor.OnSampleListener {
+                override fun onSampleHeap(
+                    heapMemoryInfo: HeapMemoryInfo,
+                    sampleType: MemoryMonitor.SampleType
+                ) {
+                    Log.d(TAG, "heapMemoryInfo:$heapMemoryInfo,sampleType:$sampleType")
+                }
+
+                override fun onSampleFile(
+                    fileDescriptorInfo: FileDescriptorInfo,
+                    sampleType: MemoryMonitor.SampleType
+                ) {
+                    Log.d(TAG, "fileDescriptorInfo:${fileDescriptorInfo.fdMaxCount},sampleType:$sampleType")
+                }
+
+                override fun onSampleThread(
+                    threadInfo: ThreadInfo,
+                    sampleType: MemoryMonitor.SampleType
+                ) {
+                    Log.d(TAG, "threadInfo:${threadInfo.threadsCount},sampleType:$sampleType")
+                }
+            })
+        }
+    }
+
+    companion object {
+        private const val TAG = "MainActivity"
+    }
+}
--- a/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
+++ b/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
@ -0,0 +1,34 @@
+<!--
+  ~ Copyright (c) Microsoft Corporation. All rights reserved.
+  ~ Licensed under the MIT License.
+  -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>
--- a/app/src/main/res/drawable/ic_launcher_background.xml
+++ b/app/src/main/res/drawable/ic_launcher_background.xml
@ -0,0 +1,174 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (c) Microsoft Corporation. All rights reserved.
+  ~ Licensed under the MIT License.
+  -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@ -0,0 +1,81 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (c) Microsoft Corporation. All rights reserved.
+  ~ Licensed under the MIT License.
+  -->
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <Button
+        android:id="@+id/button_fps_start"
+        android:layout_width="200dp"
+        android:layout_height="70dp"
+        android:text="fps_start"
+        android:textSize="14sp"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <Button
+        android:id="@+id/button_fps_stop"
+        android:layout_width="200dp"
+        android:layout_height="70dp"
+        android:text="fps_stop"
+        android:textSize="14sp"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/button_fps_start" />
+
+    <Button
+        android:id="@+id/button_fps_sleep"
+        android:layout_width="200dp"
+        android:layout_height="70dp"
+        android:text="thread_sleep"
+        android:textSize="14sp"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/button_fps_stop" />
+
+    <Button
+        android:id="@+id/button_start_memory"
+        android:layout_width="200dp"
+        android:layout_height="70dp"
+        android:text="start_memory"
+        android:textSize="14sp"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/button_fps_sleep" />
+
+    <Button
+        android:id="@+id/button_stop_memory"
+        android:layout_width="200dp"
+        android:layout_height="70dp"
+        android:text="stop_memory"
+        android:textSize="14sp"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/button_start_memory" />
+
+    <Button
+        android:id="@+id/button_increase_memory"
+        android:layout_width="200dp"
+        android:layout_height="70dp"
+        android:text="increase_memory"
+        android:textSize="14sp"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/button_stop_memory" />
+
+    <Button
+        android:id="@+id/button_dump_memory_immediately"
+        android:layout_width="200dp"
+        android:layout_height="70dp"
+        android:text="dump_memory_immediately"
+        android:textSize="14sp"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/button_increase_memory" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
--- a/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (c) Microsoft Corporation. All rights reserved.
+  ~ Licensed under the MIT License.
+  -->
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (c) Microsoft Corporation. All rights reserved.
+  ~ Licensed under the MIT License.
+  -->
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/app/src/main/res/mipmap-hdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-hdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
--- a/app/src/main/res/mipmap-mdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-mdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
--- a/app/src/main/res/mipmap-xhdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-xhdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
--- a/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
--- a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
--- a/app/src/main/res/values-night/themes.xml
+++ b/app/src/main/res/values-night/themes.xml
@ -0,0 +1,20 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!--
+      ~ Copyright (c) Microsoft Corporation. All rights reserved.
+      ~ Licensed under the MIT License.
+      -->
+    <!-- Base application theme. -->
+    <style name="Theme.Magnifier" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">@color/purple_200</item>
+        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorOnPrimary">@color/black</item>
+        <!-- Secondary brand color. -->
+        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondaryVariant">@color/teal_200</item>
+        <item name="colorOnSecondary">@color/black</item>
+        <!-- Status bar color. -->
+        <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
+        <!-- Customize your theme here. -->
+    </style>
+</resources>
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (c) Microsoft Corporation. All rights reserved.
+  ~ Licensed under the MIT License.
+  -->
+<resources>
+    <color name="purple_200">#FFBB86FC</color>
+    <color name="purple_500">#FF6200EE</color>
+    <color name="purple_700">#FF3700B3</color>
+    <color name="teal_200">#FF03DAC5</color>
+    <color name="teal_700">#FF018786</color>
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
+</resources>
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@ -0,0 +1,7 @@
+<resources>
+    <!--
+      ~ Copyright (c) Microsoft Corporation. All rights reserved.
+      ~ Licensed under the MIT License.
+      -->
+    <string name="app_name">Magnifier</string>
+</resources>
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@ -0,0 +1,20 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!--
+      ~ Copyright (c) Microsoft Corporation. All rights reserved.
+      ~ Licensed under the MIT License.
+      -->
+    <!-- Base application theme. -->
+    <style name="Theme.Magnifier" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">@color/purple_500</item>
+        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorOnPrimary">@color/white</item>
+        <!-- Secondary brand color. -->
+        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondaryVariant">@color/teal_700</item>
+        <item name="colorOnSecondary">@color/black</item>
+        <!-- Status bar color. -->
+        <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
+        <!-- Customize your theme here. -->
+    </style>
+</resources>
--- a/app/src/test/java/com/microsoft/office/outlook/magnifier/ExampleUnitTest.kt
+++ b/app/src/test/java/com/microsoft/office/outlook/magnifier/ExampleUnitTest.kt
@ -0,0 +1,22 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+package com.microsoft.office.outlook.magnifier
+
+import org.junit.Test
+
+import org.junit.Assert.*
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+class ExampleUnitTest {
+    @Test
+    fun addition_isCorrect() {
+        assertEquals(4, 2 + 2)
+    }
+}
--- a/build.gradle
+++ b/build.gradle
@ -0,0 +1,30 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+buildscript {
+    ext.kotlin_version = "1.4.21"
+    repositories {
+        google()
+        jcenter()
+    }
+    dependencies {
+        classpath "com.android.tools.build:gradle:4.1.2"
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}
--- a/gradle.properties
+++ b/gradle.properties
@ -0,0 +1,21 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app"s APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Automatically convert third-party libraries to use AndroidX
+android.enableJetifier=true
+# Kotlin code style for this project: "official" or "obsolete":
+kotlin.code.style=official
--- a/gradle/wrapper/gradle-wrapper.jar
+++ b/gradle/wrapper/gradle-wrapper.jar
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@ -0,0 +1,6 @@
+#Tue Apr 20 19:32:15 CST 2021
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-bin.zip
--- a/172
+++ b/172
@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"
--- a/gradlew.bat
+++ b/gradlew.bat
@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
--- a/magnifierlib/.gitignore
+++ b/magnifierlib/.gitignore
@ -0,0 +1 @@
+/build
--- a/magnifierlib/build.gradle
+++ b/magnifierlib/build.gradle
@ -0,0 +1,51 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+plugins {
+    id 'com.android.library'
+    id 'kotlin-android'
+}
+
+apply from: './publish.gradle'
+
+android {
+    compileSdkVersion 30
+    buildToolsVersion "30.0.3"
+
+    defaultConfig {
+        minSdkVersion 16
+        targetSdkVersion 30
+        versionCode Integer.parseInt(System.getProperty("versionCode", "1"))
+        versionName System.getProperty("versionName", project.VERSION_NAME)
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        consumerProguardFiles "consumer-rules.pro"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+}
+
+dependencies {
+
+    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
+    implementation 'androidx.core:core-ktx:1.3.2'
+    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation 'com.google.android.material:material:1.3.0'
+    testImplementation 'junit:junit:4.+'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
+}
--- a/magnifierlib/consumer-rules.pro
+++ b/magnifierlib/consumer-rules.pro
--- a/magnifierlib/gradle.properties
+++ b/magnifierlib/gradle.properties
@ -0,0 +1,3 @@
+POM_GROUP_ID=com.microsoft.office.outlook
+POM_ARTIFACT_ID=magnifier
+VERSION_NAME=0.0.7-SNAPSHOT
--- a/magnifierlib/proguard-rules.pro
+++ b/magnifierlib/proguard-rules.pro
@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
--- a/magnifierlib/publish.gradle
+++ b/magnifierlib/publish.gradle
@ -0,0 +1,88 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+apply plugin: 'maven-publish'
+
+task androidJavadocs(type: Javadoc) {
+    failOnError false
+    source = android.sourceSets.main.java.sourceFiles
+
+    classpath += project.files(android.getBootClasspath().join(File.pathSeparator))
+
+}
+
+task androidJavadocsJar(type: Jar, dependsOn: androidJavadocs) {
+    from androidJavadocs.destinationDir
+    classifier = 'javadoc'
+}
+
+task androidSourcesJar(type: Jar) {
+    from android.sourceSets.main.java.srcDirs
+    classifier = 'sources'
+}
+
+
+publishing {
+    publications {
+        magnifier(MavenPublication) {
+            afterEvaluate {
+                groupId project.POM_GROUP_ID
+                artifactId project.POM_ARTIFACT_ID
+                version System.getProperty("versionName", project.VERSION_NAME)
+                artifact bundleReleaseAar
+                artifact androidJavadocsJar
+                artifact androidSourcesJar
+            }
+
+            pom.withXml {
+                def dependenciesNode = asNode().appendNode('dependencies')
+
+                configurations.implementation.getAllDependencies().each { Dependency dep ->
+                    if (dep.group == null
+                            || dep.version == null
+                            || dep.name == null
+                            || dep.name == "unspecified") {
+                        return // ignore invalid dependencies
+                    }
+
+                    def dependencyNode = dependenciesNode.appendNode('dependency')
+                    dependencyNode.appendNode('groupId', dep.group)
+                    dependencyNode.appendNode('artifactId', dep.name)
+                    dependencyNode.appendNode('version', dep.version)
+
+                    if (!dep.transitive) {
+                        // If this dependency is transitive, we should force exclude
+                        // all its dependencies them from the POM
+                        def exclusionNode = dependencyNode.appendNode('exclusions').appendNode('exclusion')
+                        exclusionNode.appendNode('groupId', '*')
+                        exclusionNode.appendNode('artifactId', '*')
+                    } else if (!dep.properties.excludeRules.empty) {
+                        // Otherwise add specified exclude rules
+                        def exclusionsNode = dependencyNode.appendNode('exclusions')
+                        dep.properties.excludeRules.each { ExcludeRule rule ->
+                            def exclusionNode = exclusionsNode.appendNode('exclusion')
+                            exclusionNode.appendNode('groupId', rule.group ?: '*')
+                            exclusionNode.appendNode('artifactId', rule.module ?: '*')
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    repositories {
+        maven {
+            url 'https://office.pkgs.visualstudio.com/_packaging/OutlookMobile/maven/v1'
+            credentials {
+                // TODO: replace this local.properties after set up pipelines in VSTS
+                Properties properties = new Properties()
+                properties.load(project.rootProject.file('local.properties').newDataInputStream())
+                username = properties.getProperty('vsoUserName')
+                password = properties.getProperty('vsoPassword')
+            }
+        }
+    }
+}
+
--- a/magnifierlib/src/androidTest/java/com/microsoft/office/outlook/magnifierlib/ExampleInstrumentedTest.kt
+++ b/magnifierlib/src/androidTest/java/com/microsoft/office/outlook/magnifierlib/ExampleInstrumentedTest.kt
@ -0,0 +1,28 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+package com.microsoft.office.outlook.magnifierlib
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.microsoft.office.outlook.magnifierlib.test", appContext.packageName)
+    }
+}
--- a/magnifierlib/src/main/AndroidManifest.xml
+++ b/magnifierlib/src/main/AndroidManifest.xml
@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (c) Microsoft Corporation. All rights reserved.
+  ~ Licensed under the MIT License.
+  -->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.microsoft.office.outlook.magnifierlib">
+
+    <!-- Permission for FPS Viewer -->
+    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
+
+</manifest>
--- a/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/Magnifier.kt
+++ b/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/Magnifier.kt
@ -0,0 +1,49 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+package com.microsoft.office.outlook.magnifierlib
+
+import androidx.annotation.UiThread
+import com.microsoft.office.outlook.magnifierlib.frame.FPSMonitor
+import com.microsoft.office.outlook.magnifierlib.frame.FPSMonitorConfig
+import com.microsoft.office.outlook.magnifierlib.memory.MemoryMonitor
+import com.microsoft.office.outlook.magnifierlib.memory.MemoryMonitorConfig
+
+object Magnifier {
+
+    private val fpsMonitor: FPSMonitor by lazy { FPSMonitor() }
+
+    private val memoryMonitor: MemoryMonitor by lazy { MemoryMonitor() }
+
+    @UiThread
+    fun startMonitorFPS(config: FPSMonitorConfig) {
+        fpsMonitor.startMonitorFPS(config)
+    }
+
+    @UiThread
+    fun stopMonitorFPS() {
+        fpsMonitor.stopMonitorFPS()
+    }
+
+    fun isEnabledFPSMonitor(): Boolean {
+        return fpsMonitor.isFPSMonitorEnabled()
+    }
+
+    fun startMonitorMemory(config: MemoryMonitorConfig) {
+        memoryMonitor.start(config)
+    }
+
+    fun stopMonitorMemory() {
+        memoryMonitor.stop()
+    }
+
+    fun dumpMemoryImmediately(onSampleListener: MemoryMonitor.OnSampleListener) {
+        memoryMonitor.dumpImmediately(onSampleListener)
+    }
+
+    fun isEnabledMemoryMonitor(): Boolean {
+        return memoryMonitor.isMonitorEnabled()
+    }
+}
--- a/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/Permissions.kt
+++ b/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/Permissions.kt
@ -0,0 +1,24 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+package com.microsoft.office.outlook.magnifierlib
+
+import android.content.Context
+import android.content.Intent
+import android.net.Uri
+import android.os.Build
+import android.provider.Settings
+
+fun drawOverlaysPermission(context: Context): Boolean {
+    return Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && !Settings.canDrawOverlays(context).also {
+        if (!it) {
+            val intent = Intent(
+                Settings.ACTION_MANAGE_OVERLAY_PERMISSION, Uri.parse("package:" + context.packageName)
+            )
+            intent.flags = Intent.FLAG_ACTIVITY_NEW_TASK
+            context.startActivity(intent)
+        }
+    }
+}
--- a/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/frame/FPSMonitor.kt
+++ b/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/frame/FPSMonitor.kt
@ -0,0 +1,57 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+package com.microsoft.office.outlook.magnifierlib.frame
+
+import android.annotation.SuppressLint
+import androidx.annotation.UiThread
+import com.microsoft.office.outlook.magnifierlib.drawOverlaysPermission
+
+class FPSMonitor {
+
+    private var frameCalculator: FrameCalculator? = null
+
+    @SuppressLint("StaticFieldLeak")
+    private var frameViewer: FrameViewer? = null
+
+    @UiThread
+    @Synchronized
+    fun startMonitorFPS(config: FPSMonitorConfig) {
+        if (drawOverlaysPermission(config.context)) {
+            return
+        }
+
+        if (isFPSMonitorEnabled()) {
+            return
+        }
+
+        frameViewer = FrameViewer(config.context, config.refreshRate, config.mediumPercentage, config.lowPercentage)
+        frameCalculator = FrameCalculator {
+            frameViewer?.display(it)
+        }
+
+        frameViewer?.show()
+        frameCalculator?.start()
+    }
+
+    @UiThread
+    @Synchronized
+    fun stopMonitorFPS() {
+        if (!isFPSMonitorEnabled()) {
+            return
+        }
+
+        frameViewer?.hide()
+        frameCalculator?.stop()
+
+        frameViewer = null
+        frameCalculator = null
+    }
+
+    @Synchronized
+    fun isFPSMonitorEnabled(): Boolean {
+        return frameViewer != null && frameCalculator != null
+    }
+}
--- a/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/frame/FPSMonitorConfig.kt
+++ b/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/frame/FPSMonitorConfig.kt
@ -0,0 +1,45 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+package com.microsoft.office.outlook.magnifierlib.frame
+
+import android.app.Application
+import android.app.Service
+import android.view.WindowManager
+
+class FPSMonitorConfig private constructor(
+    val context: Application,
+    val refreshRate: Float,
+    val mediumPercentage: Float,
+    val lowPercentage: Float
+) {
+
+    data class Builder(
+        val context: Application,
+        var mediumPercentage: Float,
+        var lowPercentage: Float,
+        var refreshRate: Float
+    ) {
+        constructor(context: Application) : this(
+            context,
+            FLAG_PERCENTAGE_YELLOW,
+            FLAG_PERCENTAGE_RED,
+            (context.getSystemService(Service.WINDOW_SERVICE) as WindowManager).defaultDisplay.refreshRate
+        )
+
+        fun mediumPercentage(mediumPercentage: Float) = apply { this.mediumPercentage = mediumPercentage }
+        fun lowPercentage(lowPercentage: Float) = apply { this.lowPercentage = lowPercentage }
+        fun refreshRate(refreshRate: Float) = apply { this.refreshRate = refreshRate }
+        fun build() = FPSMonitorConfig(context, refreshRate, mediumPercentage, lowPercentage)
+    }
+
+    companion object {
+        const val FLAG_PERCENTAGE_RED = 2 / 3f
+        const val FLAG_PERCENTAGE_YELLOW = 5 / 6f
+    }
+}
+
+
+
--- a/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/frame/FrameCalculator.kt
+++ b/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/frame/FrameCalculator.kt
@ -0,0 +1,61 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+package com.microsoft.office.outlook.magnifierlib.frame
+
+import android.os.Handler
+import android.os.HandlerThread
+import android.os.Message
+import android.view.Choreographer
+import java.util.LinkedList
+
+class FrameCalculator(
+    private val listener: (frameCount: Int) -> Unit
+) : Choreographer.FrameCallback {
+
+    private val frameList = LinkedList<Long>()
+
+    private var handlerThread: HandlerThread = HandlerThread(MAGNIFIER_FRAME_CALLBACK_THREAD_NAME).also { it.start() }
+
+    private var handler: Handler = object : Handler(handlerThread.looper) {
+        override fun handleMessage(msg: Message) {
+            super.handleMessage(msg)
+            when (msg.what) {
+                HANDLE_MSG -> notifyListener()
+            }
+        }
+    }
+
+    override fun doFrame(frameTimeNanos: Long) {
+        frameList.add(frameTimeNanos)
+        Choreographer.getInstance().postFrameCallback(this)
+    }
+
+    fun start() {
+        Choreographer.getInstance().postFrameCallback(this)
+        frameList.clear()
+        handler.sendEmptyMessageDelayed(HANDLE_MSG, THRESHOLD_IN_MS)
+    }
+
+    fun stop() {
+        Choreographer.getInstance().removeFrameCallback(this)
+        frameList.clear()
+        handler.removeCallbacksAndMessages(null)
+        handlerThread.quit()
+        handlerThread.interrupt()
+    }
+
+    private fun notifyListener() {
+        listener.invoke(frameList.size)
+        frameList.clear()
+        handler.sendEmptyMessageDelayed(HANDLE_MSG, THRESHOLD_IN_MS)
+    }
+
+    companion object {
+        private const val HANDLE_MSG = 0
+        private const val THRESHOLD_IN_MS = 1000L
+        private const val MAGNIFIER_FRAME_CALLBACK_THREAD_NAME = "magnifier_frame_callback_thread"
+    }
+}
--- a/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/frame/FrameViewer.kt
+++ b/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/frame/FrameViewer.kt
@ -0,0 +1,118 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+package com.microsoft.office.outlook.magnifierlib.frame
+
+import android.annotation.SuppressLint
+import android.app.Application
+import android.app.Service
+import android.content.Context
+import android.graphics.PixelFormat
+import android.os.Build
+import android.view.Gravity
+import android.view.LayoutInflater
+import android.view.MotionEvent
+import android.view.View
+import android.view.View.OnTouchListener
+import android.view.ViewGroup
+import android.view.WindowManager
+import android.widget.TextView
+import com.microsoft.office.outlook.magnifierlib.R
+
+@SuppressLint("ClickableViewAccessibility")
+class FrameViewer(
+    context: Application,
+    private val refreshRate: Float,
+    private val mediumPercentage: Float,
+    private val lowPercentage: Float
+) {
+    @SuppressLint("InflateParams")
+    private val textView: TextView = LayoutInflater.from(context).inflate(R.layout.frame_view, null) as TextView
+    private val windowManager: WindowManager = textView.context.getSystemService(Service.WINDOW_SERVICE) as WindowManager
+
+    init {
+
+        val minWidth: Int = (textView.lineHeight + textView.totalPaddingTop + textView.totalPaddingBottom + textView.paint.fontMetrics.bottom.toInt())
+        textView.minWidth = minWidth
+
+        val params = WindowManager.LayoutParams(
+            ViewGroup.LayoutParams.WRAP_CONTENT,
+            ViewGroup.LayoutParams.WRAP_CONTENT,
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY else WindowManager.LayoutParams.TYPE_PHONE,
+            WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
+            PixelFormat.RGBA_8888
+        )
+        params.gravity = DEFAULT_GRAVITY
+        params.x = POSITION_X
+        params.y = POSITION_L
+
+        windowManager.addView(textView, params)
+
+        textView.setOnTouchListener(MovingTouchListener(params, windowManager))
+
+        textView.isHapticFeedbackEnabled = false
+    }
+
+    fun display(frameCount: Int) {
+        textView.post {
+            when {
+                frameCount > refreshRate * mediumPercentage -> {
+                    textView.setBackgroundResource(R.drawable.fps_good)
+                }
+                frameCount > refreshRate * lowPercentage -> {
+                    textView.setBackgroundResource(R.drawable.fps_medium)
+                }
+                else -> {
+                    textView.setBackgroundResource(R.drawable.fps_bad)
+                }
+            }
+            textView.text = frameCount.toString()
+        }
+    }
+
+    fun show() {
+        textView.visibility = View.VISIBLE
+    }
+
+    fun hide() {
+        textView.visibility = View.GONE
+        windowManager.removeView(textView)
+    }
+
+    class MovingTouchListener(
+        private val params: WindowManager.LayoutParams,
+        private val windowManager: WindowManager
+    ) : OnTouchListener {
+        private var initialX = 0
+        private var initialY = 0
+        private var initialTouchX = 0f
+        private var initialTouchY = 0f
+        override fun onTouch(
+            v: View,
+            event: MotionEvent
+        ): Boolean {
+            when (event.action) {
+                MotionEvent.ACTION_DOWN -> {
+                    initialX = params.x
+                    initialY = params.y
+                    initialTouchX = event.rawX
+                    initialTouchY = event.rawY
+                }
+                MotionEvent.ACTION_MOVE -> {
+                    params.x = initialX + (event.rawX - initialTouchX).toInt()
+                    params.y = initialY + (event.rawY - initialTouchY).toInt()
+                    windowManager.updateViewLayout(v, params)
+                }
+            }
+            return false
+        }
+    }
+
+    companion object {
+        const val DEFAULT_GRAVITY = Gravity.TOP or Gravity.START
+        const val POSITION_X = 200
+        const val POSITION_L = 600
+    }
+}
--- a/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/memory/FileDescriptorMetricCollector.kt
+++ b/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/memory/FileDescriptorMetricCollector.kt
@ -0,0 +1,18 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+package com.microsoft.office.outlook.magnifierlib.memory
+
+class FileDescriptorMetricCollector : IMetricCollector<FileDescriptorInfo> {
+
+    override fun collect(): FileDescriptorInfo {
+        return FileDescriptorInfo(readMaxOpenFiles(), readFileDescriptors())
+    }
+}
+
+data class FileDescriptorInfo(
+    val fdMaxCount: Long,
+    val fileDescriptors: List<String>
+)
--- a/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/memory/HeapMetricCollector.kt
+++ b/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/memory/HeapMetricCollector.kt
@ -0,0 +1,34 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+package com.microsoft.office.outlook.magnifierlib.memory
+
+import android.os.Debug
+
+class HeapMetricCollector : IMetricCollector<HeapMemoryInfo> {
+
+    override fun collect(): HeapMemoryInfo {
+        return HeapMemoryInfo(
+            maxMemoryMB = Runtime.getRuntime().maxMemory() / M,
+            usedMemoryMB = (Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory()) / M,
+            pssMemoryMB = Debug.getPss() / K,
+            vssMemoryMB = readVss() / K,
+            rssMemoryMB = readVmRss() / K
+        )
+    }
+
+    companion object {
+        private const val K = 1024
+        private const val M = K * K
+    }
+}
+
+data class HeapMemoryInfo(
+    val maxMemoryMB: Long,
+    val usedMemoryMB: Long,
+    val pssMemoryMB: Long,
+    val vssMemoryMB: Long,
+    val rssMemoryMB: Long
+)
--- a/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/memory/MemoryMonitor.kt
+++ b/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/memory/MemoryMonitor.kt
@ -0,0 +1,109 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+package com.microsoft.office.outlook.magnifierlib.memory
+
+import android.os.Handler
+import android.os.HandlerThread
+
+class MemoryMonitor {
+
+    private val handlerThread: HandlerThread = HandlerThread(HANDLER_THREAD_MEMORY_MONITOR).apply { this.start() }
+
+    private val handler: Handler = Handler(handlerThread.looper)
+
+    private val factory = MemorySamplersFactory()
+
+    private var syncSamplerList: ArrayList<MemorySampler<out Any>> = ArrayList()
+
+    private var asyncSamplerList: ArrayList<MemorySampler<out Any>> = ArrayList()
+
+    @Volatile
+    private var isMonitorEnabled = false
+
+    @Synchronized
+    fun start(config: MemoryMonitorConfig) {
+
+        if (isMonitorEnabled) {
+            return
+        }
+
+        isMonitorEnabled = true
+
+        asyncSamplerList = factory.createSamplers(config, handler)
+
+        for (memorySampler in asyncSamplerList) {
+            memorySampler.start()
+        }
+    }
+
+    @Synchronized
+    fun stop() {
+
+        if (!isMonitorEnabled) {
+            return
+        }
+
+        isMonitorEnabled = false
+
+        for (memorySampler in asyncSamplerList) {
+            memorySampler.stop()
+        }
+
+        asyncSamplerList.clear()
+    }
+
+    @Synchronized
+    fun dumpImmediately(onSampleListener: OnSampleListener) {
+
+        if (syncSamplerList.isEmpty()) {
+            syncSamplerList = factory.createSamplers(
+                MemoryMonitorConfig.Builder(MemoryMonitorConfig.MemoryMonitorType.SYNC).onSampleListener(onSampleListener).build(), handler
+            )
+        }
+
+        for (memorySampler in syncSamplerList) {
+            memorySampler.start()
+        }
+    }
+
+    @Synchronized
+    fun isMonitorEnabled(): Boolean {
+        return isMonitorEnabled
+    }
+
+    interface IMemoryMonitor {
+
+        fun start()
+
+        fun stop()
+    }
+
+    interface OnSampleListener {
+
+        fun onSampleHeap(
+            heapMemoryInfo: HeapMemoryInfo,
+            sampleType: SampleType
+        )
+
+        fun onSampleFile(
+            fileDescriptorInfo: FileDescriptorInfo,
+            sampleType: SampleType
+        )
+
+        fun onSampleThread(
+            threadInfo: ThreadInfo,
+            sampleType: SampleType
+        )
+    }
+
+    enum class SampleType {
+        TIMING, EXCEED_LIMIT, IMMEDIATE
+    }
+
+    companion object {
+        private const val HANDLER_THREAD_MEMORY_MONITOR = "magnifier_memory"
+    }
+}
--- a/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/memory/MemoryMonitorConfig.kt
+++ b/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/memory/MemoryMonitorConfig.kt
@ -0,0 +1,69 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+package com.microsoft.office.outlook.magnifierlib.memory
+
+class MemoryMonitorConfig private constructor(
+    val monitorType: MemoryMonitorType,
+    val openTimingSample: Boolean,
+    val openExceedLimitSample: Boolean,
+    val timingThreshold: Long,
+    val exceedLimitRatio: Float,
+    val exceedLimitThreshold: Long,
+    val onSampleListener: MemoryMonitor.OnSampleListener?
+) {
+
+    data class Builder(
+        val monitorType: MemoryMonitorType,
+        var openTimingSample: Boolean = false,
+        var openExceedLimitSample: Boolean = false,
+        var timingThreshold: Long = DEFAULT_TIMING_THRESHOLD_1_MIN,
+        var exceedLimitRatio: Float = DEFAULT_EXCEED_LIMIT_RATIO_80_PERCENTAGE,
+        var exceedLimitThreshold: Long = DEFAULT_EXCEED_LIMIT_RATIO_THRESHOLD_10_SECONDS,
+        var onSampleListener: MemoryMonitor.OnSampleListener? = null
+    ) {
+
+        constructor(monitorType: MemoryMonitorType = MemoryMonitorType.ASYNC) : this(
+            monitorType,
+            false,
+            false,
+            DEFAULT_TIMING_THRESHOLD_1_MIN,
+            DEFAULT_EXCEED_LIMIT_RATIO_80_PERCENTAGE,
+            DEFAULT_EXCEED_LIMIT_RATIO_THRESHOLD_10_SECONDS,
+            null
+        )
+
+        fun enableTimingSample(
+            timingThreshold: Long
+        ) = apply {
+            this.openTimingSample = true
+            this.timingThreshold = timingThreshold
+        }
+
+        fun enableExceedLimitSample(
+            exceedLimitRatio: Float,
+            exceedLimitThreshold: Long
+        ) = apply {
+            this.openExceedLimitSample = true
+            this.exceedLimitRatio = exceedLimitRatio
+            this.exceedLimitThreshold = exceedLimitThreshold
+        }
+
+        fun onSampleListener(onSampleListener: MemoryMonitor.OnSampleListener) = apply { this.onSampleListener = onSampleListener }
+
+        fun build() =
+            MemoryMonitorConfig(monitorType, openTimingSample, openExceedLimitSample, timingThreshold, exceedLimitRatio, exceedLimitThreshold, onSampleListener)
+    }
+
+    enum class MemoryMonitorType {
+        ASYNC, SYNC
+    }
+
+    companion object {
+        private const val DEFAULT_TIMING_THRESHOLD_1_MIN = 1000 * 60L
+        private const val DEFAULT_EXCEED_LIMIT_RATIO_80_PERCENTAGE = 0.8f
+        private const val DEFAULT_EXCEED_LIMIT_RATIO_THRESHOLD_10_SECONDS = 1000 * 10L
+    }
+}
--- a/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/memory/MemorySampler.kt
+++ b/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/memory/MemorySampler.kt
@ -0,0 +1,46 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+package com.microsoft.office.outlook.magnifierlib.memory
+
+import android.os.Handler
+
+class MemorySampler<T>(
+    private val collector: IMetricCollector<T>,
+    private val policy: ISamplePolicy,
+    private val handler: Handler,
+    private val onSampleListener: (t: T) -> Unit
+) : Runnable, MemoryMonitor.IMemoryMonitor {
+
+    override fun run() {
+        if (policy.needSample()) {
+            val sample = collector.collect()
+            onSampleListener.invoke(sample)
+        }
+        if (policy.needPostDelayed()) {
+            handler.postDelayed(this, policy.postDelayedThreshold())
+        }
+    }
+
+    override fun start() {
+        handler.post(this)
+    }
+
+    override fun stop() {
+        handler.removeCallbacks(this)
+    }
+}
+
+interface IMetricCollector<T> {
+    fun collect(): T
+}
+
+interface ISamplePolicy {
+    fun needSample(): Boolean
+
+    fun needPostDelayed(): Boolean
+
+    fun postDelayedThreshold(): Long
+}
--- a/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/memory/MemorySamplersFactory.kt
+++ b/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/memory/MemorySamplersFactory.kt
@ -0,0 +1,115 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+package com.microsoft.office.outlook.magnifierlib.memory
+
+import android.os.Handler
+
+class MemorySamplersFactory {
+
+    fun createSamplers(
+        config: MemoryMonitorConfig,
+        handler: Handler
+    ): ArrayList<MemorySampler<out Any>> {
+
+        return when (config.monitorType) {
+            MemoryMonitorConfig.MemoryMonitorType.ASYNC -> createAsyncSamplers(config, handler)
+            MemoryMonitorConfig.MemoryMonitorType.SYNC -> createSyncSamplers(config, handler)
+        }
+    }
+
+    private fun createAsyncSamplers(
+        config: MemoryMonitorConfig,
+        handler: Handler
+    ): ArrayList<MemorySampler<out Any>> {
+
+        val list = ArrayList<MemorySampler<out Any>>()
+
+        if (config.openTimingSample) {
+
+            val timingHeapSampler = MemorySampler(HeapMetricCollector(), TimingSamplePolicy(config.timingThreshold), handler) {
+                config.onSampleListener?.onSampleHeap(it, MemoryMonitor.SampleType.TIMING)
+            }
+
+            val timingFileSampler = MemorySampler(FileDescriptorMetricCollector(), TimingSamplePolicy(config.timingThreshold), handler) {
+                config.onSampleListener?.onSampleFile(it, MemoryMonitor.SampleType.TIMING)
+            }
+
+            val timingThreadSampler = MemorySampler(ThreadMetricCollector(), TimingSamplePolicy(config.timingThreshold), handler) {
+                config.onSampleListener?.onSampleThread(it, MemoryMonitor.SampleType.TIMING)
+            }
+
+            list.add(timingHeapSampler)
+            list.add(timingFileSampler)
+            list.add(timingThreadSampler)
+        }
+
+        // create the top hit samplers
+        if (config.openExceedLimitSample) {
+
+            // build the top hit heap sampler
+            val topHitHeapNeedSampleFunc: () -> Boolean = {
+                (Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory()).toFloat() >= Runtime.getRuntime()
+                    .maxMemory() * config.exceedLimitRatio
+            }
+            val topHitHeapSampler = MemorySampler(
+                HeapMetricCollector(), ExceedLimitSamplePolicy(config.exceedLimitThreshold, topHitHeapNeedSampleFunc), handler
+            ) {
+                config.onSampleListener?.onSampleHeap(it, MemoryMonitor.SampleType.EXCEED_LIMIT)
+            }
+
+            // build the top hit file sampler
+            val topHitFileNeedSampleFunc: () -> Boolean = { readFileDescriptors().size.toFloat() >= readMaxOpenFiles() * config.exceedLimitRatio }
+            val topHitFileSampler =
+                MemorySampler(FileDescriptorMetricCollector(), ExceedLimitSamplePolicy(config.exceedLimitThreshold, topHitFileNeedSampleFunc), handler) {
+                    config.onSampleListener?.onSampleFile(it, MemoryMonitor.SampleType.EXCEED_LIMIT)
+                }
+
+            // build the top hit thread sampler
+            val topHitThreadNeedSampleFunc: () -> Boolean = { readThreadsCount() >= MAX_THREADS_COUNT * config.exceedLimitRatio }
+            val topHitThreadSampler =
+                MemorySampler(ThreadMetricCollector(), ExceedLimitSamplePolicy(config.exceedLimitThreshold, topHitThreadNeedSampleFunc), handler) {
+                    config.onSampleListener?.onSampleThread(it, MemoryMonitor.SampleType.EXCEED_LIMIT)
+                }
+
+            list.add(topHitHeapSampler)
+            list.add(topHitFileSampler)
+            list.add(topHitThreadSampler)
+        }
+
+        return list
+    }
+
+    private fun createSyncSamplers(
+        config: MemoryMonitorConfig,
+        handler: Handler
+    ): ArrayList<MemorySampler<out Any>> {
+
+        val list = ArrayList<MemorySampler<out Any>>()
+
+        // for just dumping once
+        val immediateHeapSampler = MemorySampler(HeapMetricCollector(), ImmediateSamplePolicy(), handler) {
+            config.onSampleListener?.onSampleHeap(it, MemoryMonitor.SampleType.IMMEDIATE)
+        }
+
+        val immediateFileSampler = MemorySampler(FileDescriptorMetricCollector(), ImmediateSamplePolicy(), handler) {
+            config.onSampleListener?.onSampleFile(it, MemoryMonitor.SampleType.IMMEDIATE)
+        }
+
+        val immediateThreadSampler = MemorySampler(ThreadMetricCollector(), ImmediateSamplePolicy(), handler) {
+            config.onSampleListener?.onSampleThread(it, MemoryMonitor.SampleType.IMMEDIATE)
+        }
+
+        list.add(immediateHeapSampler)
+        list.add(immediateFileSampler)
+        list.add(immediateThreadSampler)
+
+        return list
+    }
+
+    companion object {
+        private const val MAX_THREADS_COUNT = 1000
+    }
+}
--- a/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/memory/MemoryUtils.kt
+++ b/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/memory/MemoryUtils.kt
@ -0,0 +1,73 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+@file:JvmName("MemoryUtils")
+
+package com.microsoft.office.outlook.magnifierlib.memory
+
+import android.os.Build
+import android.os.Process
+import android.system.Os
+import java.io.File
+import java.io.RandomAccessFile
+import java.util.ArrayList
+import java.util.regex.Pattern
+
+private const val INDEX_PROC_STATUS = 1
+private const val INDEX_PROC_LIMITS = 3
+
+fun readVss(): Long {
+    return readFieldFromProcFile("VmSize", INDEX_PROC_STATUS, "/proc/${Process.myPid()}/status")
+}
+
+fun readVmRss(): Long {
+    return readFieldFromProcFile("VmRSS", INDEX_PROC_STATUS, "/proc/${Process.myPid()}/status")
+}
+
+fun readThreadsCount(): Long {
+    return readFieldFromProcFile("Threads", INDEX_PROC_STATUS, "/proc/${Process.myPid()}/status")
+}
+
+fun readMaxOpenFiles(): Long {
+    return readFieldFromProcFile("Max open files", INDEX_PROC_LIMITS, "/proc/${Process.myPid()}/limits")
+}
+
+fun readFileDescriptors(): List<String> {
+    return ArrayList<String>().also {
+        val listFiles: Array<File> = File("proc/${Process.myPid()}/fd").listFiles() ?: arrayOf()
+        for (file in listFiles) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+                try {
+                    it.add(Os.readlink(file.absolutePath))
+                } catch (swallowed: Exception) {
+                }
+            }
+        }
+    }
+}
+
+private fun readFieldFromProcFile(
+    fieldName: String,
+    fieldIndex: Int,
+    fileName: String
+): Long {
+    val file = RandomAccessFile(fileName, "r")
+    file.use {
+        var line = file.readLine()
+        while (line != null) {
+            if (line.startsWith(fieldName)) {
+                val arr = Pattern.compile("\\s+").split(line, 0)
+                if (arr.size > 1) {
+                    return arr[fieldIndex].toLong()
+                }
+            }
+            line = file.readLine()
+        }
+    }
+    return 0
+}
+
+
+
--- a/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/memory/SamplePolicy.kt
+++ b/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/memory/SamplePolicy.kt
@ -0,0 +1,51 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+package com.microsoft.office.outlook.magnifierlib.memory
+
+class TimingSamplePolicy(private val threshold: Long) : ISamplePolicy {
+    override fun needSample(): Boolean {
+        return true
+    }
+
+    override fun needPostDelayed(): Boolean {
+        return true
+    }
+
+    override fun postDelayedThreshold(): Long {
+        return threshold
+    }
+}
+
+class ImmediateSamplePolicy() : ISamplePolicy {
+    override fun needSample(): Boolean {
+        return true
+    }
+
+    override fun needPostDelayed(): Boolean {
+        return false
+    }
+
+    override fun postDelayedThreshold(): Long {
+        return Long.MAX_VALUE
+    }
+}
+
+class ExceedLimitSamplePolicy(
+    private val threshold: Long,
+    private val needSampleFunc: () -> Boolean
+) : ISamplePolicy {
+    override fun needSample(): Boolean {
+        return needSampleFunc.invoke()
+    }
+
+    override fun needPostDelayed(): Boolean {
+        return true
+    }
+
+    override fun postDelayedThreshold(): Long {
+        return threshold
+    }
+}
--- a/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/memory/ThreadMetricCollector.kt
+++ b/magnifierlib/src/main/java/com/microsoft/office/outlook/magnifierlib/memory/ThreadMetricCollector.kt
@ -0,0 +1,19 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+package com.microsoft.office.outlook.magnifierlib.memory
+
+class ThreadMetricCollector : IMetricCollector<ThreadInfo> {
+
+    override fun collect(): ThreadInfo {
+        val allStackTraces = Thread.getAllStackTraces()
+        return ThreadInfo(readThreadsCount(), allStackTraces)
+    }
+}
+
+data class ThreadInfo(
+    val threadsCount: Long,
+    val threadMap: Map<Thread, Array<StackTraceElement>>
+)
--- a/magnifierlib/src/main/res/drawable/fps_bad.xml
+++ b/magnifierlib/src/main/res/drawable/fps_bad.xml
@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (c) Microsoft Corporation. All rights reserved.
+  ~ Licensed under the MIT License.
+  -->
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+       android:shape="oval">
+    <corners android:radius="25dip"/>
+    <stroke android:color="#D50000" android:width="@dimen/floating_width"/>
+    <solid android:color="@android:color/white"/>
+</shape>
--- a/magnifierlib/src/main/res/drawable/fps_good.xml
+++ b/magnifierlib/src/main/res/drawable/fps_good.xml
@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (c) Microsoft Corporation. All rights reserved.
+  ~ Licensed under the MIT License.
+  -->
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+       android:shape="oval">
+    <corners android:radius="25dip"/>
+    <stroke android:color="#64DD17" android:width="@dimen/floating_width"/>
+    <solid android:color="@android:color/white"/>
+</shape>
--- a/magnifierlib/src/main/res/drawable/fps_medium.xml
+++ b/magnifierlib/src/main/res/drawable/fps_medium.xml
@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (c) Microsoft Corporation. All rights reserved.
+  ~ Licensed under the MIT License.
+  -->
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+       android:shape="oval">
+    <corners android:radius="25dip"/>
+    <stroke android:color="#FFD600" android:width="@dimen/floating_width"/>
+    <solid android:color="@android:color/white"/>
+</shape>
--- a/magnifierlib/src/main/res/layout/frame_view.xml
+++ b/magnifierlib/src/main/res/layout/frame_view.xml
@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (c) Microsoft Corporation. All rights reserved.
+  ~ Licensed under the MIT License.
+  -->
+<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:background="@drawable/fps_good"
+    android:gravity="center"
+    android:padding="10dp"
+    android:text="60"
+    android:textColor="@android:color/black"
+    android:textSize="19sp"
+    android:visibility="visible" />
--- a/magnifierlib/src/main/res/values/dimens.xml
+++ b/magnifierlib/src/main/res/values/dimens.xml
@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (c) Microsoft Corporation. All rights reserved.
+  ~ Licensed under the MIT License.
+  -->
+<resources>
+    <dimen name="floating_width">4dp</dimen>
+</resources>
--- a/magnifierlib/src/test/java/com/microsoft/office/outlook/magnifierlib/ExampleUnitTest.kt
+++ b/magnifierlib/src/test/java/com/microsoft/office/outlook/magnifierlib/ExampleUnitTest.kt
@ -0,0 +1,21 @@
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+package com.microsoft.office.outlook.magnifierlib
+import org.junit.Test
+
+import org.junit.Assert.*
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+class ExampleUnitTest {
+    @Test
+    fun addition_isCorrect() {
+        assertEquals(4, 2 + 2)
+    }
+}
--- a/settings.gradle
+++ b/settings.gradle
@ -0,0 +1,3 @@
+include ':magnifierlib'
+include ':app'
+rootProject.name = "magnifier"