[Android] Allow path-based icons to be loaded as toolbar icons (#437)

* Created a bitmap method to check for resource as well as path

* Update platform and navigationrenderer to get images from two locations

* CellAdapter could use path-based icon finding

* sample app to test toolbaritem icons

Xamarin.Forms.ControlGallery.Android/Xamarin.Forms.ControlGallery.Android.csproj

@@ -115,6 +115,14 @@
   <ItemGroup>
     <Reference Include="Mono.Android" />
     <Reference Include="mscorlib" />
+    <Reference Include="PCLStorage, Version=1.0.2.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\packages\PCLStorage.1.0.2\lib\monoandroid\PCLStorage.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="PCLStorage.Abstractions, Version=1.0.2.0, Culture=neutral, PublicKeyToken=286fe515a2c35b64, processorArchitecture=MSIL">
+      <HintPath>..\packages\PCLStorage.1.0.2\lib\monoandroid\PCLStorage.Abstractions.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Xml.Linq" />

Xamarin.Forms.ControlGallery.Android/packages.config

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="PCLStorage" version="1.0.2" targetFramework="monoandroid70" />
   <package id="Xamarin.Android.Support.Animated.Vector.Drawable" version="23.3.0" targetFramework="monoandroid60" />
   <package id="Xamarin.Android.Support.Design" version="23.3.0" targetFramework="monoandroid60" />
   <package id="Xamarin.Android.Support.v4" version="23.3.0" targetFramework="monoandroid60" />

Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Xamarin.Forms.Controls.Issues.Shared.projitems

@@ -127,6 +127,7 @@
     <Compile Include="$(MSBuildThisFileDirectory)Bugzilla42364.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Bugzilla42519.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Bugzilla43516.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)Bugzilla43569.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Bugzilla44166.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Bugzilla44461.cs" />
 

Xamarin.Forms.Controls/Xamarin.Forms.Controls.csproj

@@ -304,6 +304,14 @@
     </EmbeddedResource>
   </ItemGroup>
   <ItemGroup>
+    <Reference Include="PCLStorage, Version=1.0.2.0, Culture=neutral, PublicKeyToken=286fe515a2c35b64, processorArchitecture=MSIL">
+      <HintPath>..\packages\PCLStorage.1.0.2\lib\portable-net45+wp8+wpa81+win8+monoandroid+monotouch+Xamarin.iOS+Xamarin.Mac\PCLStorage.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="PCLStorage.Abstractions, Version=1.0.2.0, Culture=neutral, PublicKeyToken=286fe515a2c35b64, processorArchitecture=MSIL">
+      <HintPath>..\packages\PCLStorage.1.0.2\lib\portable-net45+wp8+wpa81+win8+monoandroid+monotouch+Xamarin.iOS+Xamarin.Mac\PCLStorage.Abstractions.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="Xamarin.Insights">
       <HintPath>..\packages\Xamarin.Insights.1.12.3\lib\portable-win+net45+wp80+windows8+wpa+MonoAndroid10+MonoTouch10\Xamarin.Insights.dll</HintPath>
     </Reference>

Xamarin.Forms.Controls/packages.config

@@ -1,4 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="PCLStorage" version="1.0.2" targetFramework="portable45-net45+win8+wp8+wpa81" />
   <package id="Xamarin.Insights" version="1.12.3" targetFramework="portable45-net45+win8+wp8+wpa81" />
 </packages>

Xamarin.Forms.Platform.Android/AppCompat/NavigationPageRenderer.cs

@@ -709,8 +709,8 @@ namespace Xamarin.Forms.Platform.Android.AppCompat
 					FileImageSource icon = item.Icon;
 					if (!string.IsNullOrEmpty(icon))
 					{
-						Drawable iconBitmap = context.Resources.GetDrawable(icon);
+						var iconBitmap = new BitmapDrawable(context.Resources, ResourceManager.GetBitmap(context.Resources, icon));
-						if (iconBitmap != null)
+						if (iconBitmap != null && iconBitmap.Bitmap != null)
 							menuItem.SetIcon(iconBitmap);
 					}
 					menuItem.SetEnabled(controller.IsEnabled);

Xamarin.Forms.Platform.Android/CellAdapter.cs

@@ -8,6 +8,7 @@ using Android.Views;
 using Android.Widget;
 using AView = Android.Views.View;
 using AListView = Android.Widget.ListView;
+using Android.Graphics.Drawables;
 
 namespace Xamarin.Forms.Platform.Android
 {
@@ -194,7 +195,11 @@ namespace Xamarin.Forms.Platform.Android
 				IMenuItem item = menu.Add(Menu.None, i, Menu.None, action.Text);
 
 				if (action.Icon != null)
-					item.SetIcon(_context.Resources.GetDrawable(action.Icon));
+				{
+					var iconBitmap = new BitmapDrawable(_context.Resources, ResourceManager.GetBitmap(_context.Resources, action.Icon));
+					if (iconBitmap != null && iconBitmap.Bitmap != null)
+						item.SetIcon(_context.Resources.GetDrawable(action.Icon));
+				}
 
 				action.PropertyChanged += changed;
 				action.PropertyChanging += changing;

Xamarin.Forms.Platform.Android/Platform.cs

@@ -361,8 +361,8 @@ namespace Xamarin.Forms.Platform.Android
 					IMenuItem menuItem = menu.Add(item.Text);
 					if (!string.IsNullOrEmpty(item.Icon))
 					{
-						Drawable iconBitmap = _context.Resources.GetDrawable(item.Icon);
+						var iconBitmap = new BitmapDrawable(_context.Resources, ResourceManager.GetBitmap(_context.Resources, item.Icon));
-						if (iconBitmap != null)
+						if (iconBitmap != null && iconBitmap.Bitmap != null)
 							menuItem.SetIcon(iconBitmap);
 					}
 					menuItem.SetEnabled(controller.IsEnabled);
@@ -948,7 +948,10 @@ namespace Xamarin.Forms.Platform.Android
 				FileImageSource titleIcon = NavigationPage.GetTitleIcon(view);
 				if (!string.IsNullOrWhiteSpace(titleIcon))
 				{
-					actionBar.SetLogo(_context.Resources.GetDrawable(titleIcon));
+					var iconBitmap = new BitmapDrawable(_context.Resources, ResourceManager.GetBitmap(_context.Resources, titleIcon));
+					if (iconBitmap != null && iconBitmap.Bitmap != null)
+						actionBar.SetLogo(iconBitmap);
+
 					useLogo = true;
 					showHome = true;
 					showTitle = true;

Xamarin.Forms.Platform.Android/ResourceManager.cs

@@ -16,6 +16,17 @@ namespace Xamarin.Forms.Platform.Android
 
 		public static Type ResourceClass { get; set; }
 
+		public static Bitmap GetBitmap(this Resources resource, FileImageSource fileImageSource)
+		{
+			var file = fileImageSource.File;
+
+			var bitmap = GetBitmap(resource, file);
+			if (bitmap != null)
+				return bitmap;
+
+			return BitmapFactory.DecodeFile(file);
+		}
+
 		public static Bitmap GetBitmap(this Resources resource, string name)
 		{
 			return BitmapFactory.DecodeResource(resource, IdFromTitle(name, DrawableClass));