DependencyService exit App

DependencyService use

1. Shared project to create an interface

    using System.Collections.Generic;
    using System.Text;
   
    namespace OutAppDemo
    {
        public interface IAppManager
        {
            void CloseApp();
        }
    }

2. On each platform separately implement this interface
   Android platform

   
    using Android.OS;
    namespace OutAppDemo.Droid
    {
        public class AppManager : IAppManager
        {
            void IAppManager.CloseApp()
            {
                Process.KillProcess(Android.OS.Process.MyPid());
            }
        }
    }

   iOS
   ``` CSharp
   using System;
   using System.Collections.Generic;
   using System.Linq;
   using System.Text;

   using Foundation;
   using UIKit;

   namespace OutAppDemo.iOS
   {
   public class AppManager : IAppManager
   {
   void IAppManager.CloseApp()
   {
   System.Threading.Thread.CurrentThread.Abort();
   }
   }
   }
   ```

   UWP

    省略

3. Each register platform
   platforms interface class, add the following code

    using Android.OS;
    using Xamarin.Forms; <--此处添加
   
    [assembly: Dependency(typeof(OutAppDemo.Droid.AppManager))] <--此处添加
    namespace OutAppDemo.Droid
    {
        public class AppManager : IAppManager
        {
            void IAppManager.CloseApp()
            {
                ......
            }
        }
    }

   Andrews ultimate reality
   `` `CSharp
   a using System;
   a using android.os;
   a using Xamarin.Forms;

   [assembly: Dependency(typeof(OutAppDemo.Droid.AppManager))]
   namespace OutAppDemo.Droid
   {
   public class AppManager : IAppManager
   {
   void IAppManager.CloseApp()
   {
   Process.KillProcess(Android.OS.Process.MyPid());
   }
   }
   }
   ```

4. use

   
    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using Xamarin.Forms;
   
    namespace OutAppDemo
    {
        public partial class MainPage : ContentPage
        {
            public MainPage()
            {
                InitializeComponent();
            }
   
            private void Button_Clicked(object sender, EventArgs e) <--此处使用
            {
                //此处使用
                var manager = DependencyService.Get<IAppManager>();
                manager.CloseApp();
            }
        }
    }