Mac integrates directly with Xcode, the developer can use Xcode's Interface Builder to create an app's user interfaces or optionally create them directly in C code. Additionally, since Xamarin. Mac applications are written in C and. NET, code can be shared with Xamarin. Android mobile apps; all while delivering a native experience on each platform. This article will introduce the key concepts needed to create a Mac app using Xamarin.
Mac, Visual Studio for Mac and Xcode's Interface Builder by walking through the process of building a simple Hello, Mac app that counts the number of times a button has been clicked:.
The upcoming Xamarin. Mac 4. Previous versions of Xamarin. Mac supported macOS To target macOS When the button is clicked, the label will display the number of times it has been clicked. Click on the New Project Click Next :.
Visual Studio for Mac will create the new Xamarin. Mac app and display the default files that get added to the app's solution:. A solution is a container that can hold one or more projects; projects can include applications, supporting libraries, test applications, etc. Mac application programming is very similar to working with Xamarin. The following sections, will take a quick look through some of these files. The Main. It contains a static Main method which creates a new Xamarin.
Mac app instance and passes the name of the class that will handle OS events, which in this case is the AppDelegate class:. The AppDelegate. The WillTerminate method will be called when the user or the system has instantiated a shutdown of the app. The developer should use this method to finalize the app before it quits such as saving user preferences or window size and location. The ViewController declaration represents the object that controls the actual app window.
The controller is responsible for the life cycle of the main window. This will be examined in detail later, for now take a quick look at it:. The designer file for the Main Window class is initially empty, but it will be automatically populated by Visual Studio for Mac as the user interface is created with Xcode Interface Builder:.
With the Xamarin. Mac app project created and a basic understanding of its components, switch to Xcode to create the user interface using Interface Builder. The Info. Mac app such as its Name and Bundle Identifier :. It also defines the Storyboard that will be used to display the user interface for the Xamarin. Mac app under the Main Interface dropdown. In example above, Main in the dropdown relates to the Main.
It also defines the app's icons by specifying the Asset Catalog that contains them AppIcon in this case. The app's Entitlements. Github repositories are the most preferred way to store and share a Project's source files for its easy way to navigate repos. Click here to find and download Bug tracking allows the developers to have a record of the bugs and issues found in an application for a more efficient way to fix them. This is another way to interact with the developers of a Project, solve your questions or contribute to improve it: IRC channels.
Here's the place to find additional information about that Project. Choose from four sizes: mini, small, regular, and a large one for sheets. Rapidly create and prototype sheets with the Sheet Controller. Sheets added to your nib or xib will even work in the Interface Builder simulator. Toolbar Item with Customizable Identifier. Specify the identifiers of your toolbar items right in the inspector.
Useful in cases where you need to access toolbar items from code. Add an iTunes-style slider to your bottom bar with built in speaker and photo indicators. For displaying text, use the provided inset text field.
Easily add hyperlink text and images to your interface. User interfaces are actually archived Cocoa or Cocoa Touch objects saved as. A complete iOS app is composed of multiple views through which the user navigates. Open the Assistant when editing your Storyboard or. Auto Layout is based on the idea that each object in your interface can define a constraint to control how it reacts to the parent view and other interface controls.
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