iOS/tvOS/watchOS Samples

The samples in this directory use the Xamarin.iOS toolchain and Xamarin Studio project files to illustrate the basics of how to work with iOS and the SDK. Visit the iOS Sample Gallery to download individual samples.

License

See the repo's license file and any additional license information attached to each sample.

Samples Layout

Version Specific Samples

Starting with iOS 8, we started adding samples that showcase specific features introduced in a release into a directory for the release. So all the new iOS 8 feature samples live in the ios8 directory, the iOS 9 features live in the ios9 directory and the iOS 10 feature lives in the ios10 directory, and so on for iOS 11.

watchOS

watchOS samples are in the watchOS directory, there are a couple of them:

• WatchKit/WatchKitCatalog: contains a sample that shows all the UI elements available in WatchKit.
• WatchKit/GpsWatch: a GPS app for the Apple Watch.
• WatchKit/WatchTables: the sample app used in our tutorials to show how to build WatchKit apps.

tvOS

tvOS samples are in the tvos directory, including the tvOS UI Catalog.

Contributing

Before adding a sample to the repository, please run either install-hook.bat or install-hook.sh depending on whether you're on Windows or a Posix system. This will install a Git hook that runs the Xamarin code sample validator before a commit, to ensure that all samples are good to go.

Samples Submission Guidelines

Galleries

We love samples! Application samples show off our platform and provide a great way for people to learn our stuff. And we even promote them as a first-class feature of the docs site. You can find the sample galleries here:

• Xamarin Forms Samples

• iOS Samples

• Mac Samples

• Android Samples

Sample GitHub Repositories

These sample galleries are populated by samples in these GitHub repos:

• https://github.com/xamarin/xamarin-forms-samples

• https://github.com/xamarin/mobile-samples

• https://github.com/xamarin/monotouch-samples

• https://github.com/xamarin/mac-samples

• https://github.com/xamarin/monodroid-samples

• https://github.com/xamarin/mac-ios-samples

The mobile-samples repository is for samples that are cross-platform. The mac-ios-samples repository is for samples that are Mac/iOS only.

Sample Requirements

We welcome sample submissions, please start by creating an issue with your proposal.

Because the sample galleries are powered by the github sample repos, each sample needs to have the following things:

• Screenshots - a folder called Screenshots that has at least one screen shot of the sample (preferably a screen shot for every page or every major functionality piece, people really key off these things). for the xplat samples, the folder should be split into platform folders, e.g. iOS, Android, Windows. see https://github.com/xamarin/mobile-samples/tree/master/Tasky/Screenshots for an example of this.

• Readme - a README.md file that has the name of the sample, a description, and author attribution. sample here: https://github.com/xamarin/mobile-samples/blob/master/Tasky/README.md

• Metadata - Finally, it needs a Metadata.xml file (https://github.com/xamarin/mobile-samples/blob/master/Tasky/Metadata.xml) that has some information:

  • ID - A GUID for the sample. You can generate this in MD under Tools menu : Insert GUID. we need this to key between articles and their associated samples

  • IsFullApplication - Boolean flag (true or false): whether or not this is a full application such as the MWC App, Tasky, etc., or it's just a feature sample, such as, how to use 'x' feature. the basic test here is, if you would submit this to the app store because it's useful, then it's a full app, otherwise it's just a feature sample.

  • Brief - Short description or what your sample does. This allows us to display a nice and clean vignette on the sample page.

  • Level - Beginner, Intermediate, or Advanced: this is the intended audience level for the sample. only the getting started samples are Beginner, as they are intended for people who are just starting with the platform. most samples are Intermediate, and a few, that dive deep into difficult APIs, should be Advanced.

  • Minimum License Requirement - Starter, Indie, Business, or Enterprise: denotes the license that a user has to have in order to build/run the sample.

  • Tags: a list of relevant tags for the app. These are:

    • Data
    • User Interface
    • Games
    • Graphics (CoreDrawing, Animation, OpenGL...)
    • Media (Video, Sound, recording, photos)
    • Platform Features (Photo Library, Contacts, Calendars, etc.)
    • Device Features (NFC, Accelerometer, Compass, Magnemometer, Bluetooth, RFID)
    • Cloud (Web Services, Networking, etc.)
    • Backgrounding
    • Maps + Location
    • Binding + Interop (Projections)
    • Notifications
    • Touch
    • Getting Started
    • Async
    • Extension
    • iOS8
    • iOS9
    • iOS10
    • Watch
    • Keyboard
    • SceneKit
    • FSharp

  • SupportedPlatforms: this is only for cross plat samples. It's a comma-separated list, and the valid values are iOS, Android, and Windows.

  • Gallery: This tag must contain a value of true if you want the sample to show up in the samples gallery on the developer portal.

• Buildable Sln and CSProj file - the project must build and have the appropriate project scaffolding (solution + proj).

A good example of this stuff is here in the drawing sample: https://github.com/xamarin/monotouch-samples/tree/master/Drawing

For a cross-platform sample, please see: https://github.com/xamarin/mobile-samples/tree/master/Tasky

GitHub Integration

We integrate tightly with Git to make sure we always provide working samples to our customers. This is achieved through a pre-commit hook that runs before your commit goes through, as well as a post-receive hook on GitHub's end that notifies our samples gallery server when changes go through.

To you, as a sample committer, this means that before you push to the repos, you should run the "install-hook.bat" or "install-hook.sh" (depending on whether you're on Windows or OS X/Linux, respectively). These will install the Git pre-commit hook. Now, whenever you try to make a Git commit, all samples in the repo will be validated. If any sample fails to validate, the commit is aborted; otherwise, your commit goes through and you can go ahead and push.

This strict approach is put in place to ensure that the samples we present to our customers are always in a good state, and to ensure that all samples integrate correctly with the sample gallery (README.md, Metadata.xml, etc). Note that the master branch of each sample repo is what we present to our customers for our stable releases, so they must always Just Work.

Should you wish to invoke validation of samples manually, simply run "validate.windows" or "validate.posix" (again, Windows vs OS X/Linux, respectively). These must be run from a Bash shell (i.e. a terminal on OS X/Linux or the Git Bash terminal on Windows).

If you have any questions, don't hesitate to ask on Xamarin Forums!