title: How to install and run an apk file in Xamarin forms?
body: <p>I want to install and run apk file in my SD card. I have code through which I'm trying to fetch the apk file but I have no clue how to install and open it.  This is my code so far</p>
  
  <p><strong>MainPage.Xaml.cs</strong></p>
  
  <pre><code> private void Button_Clicked(object sender, EventArgs e)
          {
               DependencyService.Get&lt;SDCard&gt;().ApkInstall();
  
          }
  </code></pre>
  
  <p><strong>SDCardInstall.cs</strong> in native android</p>
  
  <pre><code> public class SDCardInstall: SDCard
      {
          public void ApkInstall(string filename)
          {
     var filename = "XYZ.apk";
              System.Diagnostics.Debug.WriteLine("The file name is"+filename);
              var path = "Install apk/";
              var destination = Path.Combine(Android.OS.Environment.ExternalStorageDirectory.AbsolutePath.ToString(),path+filename);
              System.Diagnostics.Debug.WriteLine("The destination is"+destination);
              //Android.Net.Uri uri = Android.Net.Uri.("file://" + destination);
              Intent install = new Intent(Intent.ActionView);
              install.AddFlags(ActivityFlags.ClearTask);
  
              //install.SetFlags(ActivityFlags.NewTask);
              install.SetDataAndType(Android.Net.Uri.FromFile(new Java.IO.File(Android.OS.Environment.ExternalStorageDirectory.AbsolutePath.ToString()+ "/Install apk/"+ filename)), "application/vnd.android.package-archive");
               Forms.Context.StartActivity(install);
       }
      }
  </code></pre>
  
  <p>I have mentioned the following <strong>permission</strong></p>
  
  <pre><code>&lt;uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT" /&gt;
      &lt;uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /&gt;
      &lt;uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /&gt;
      &lt;uses-permission android:name="android.permission.INSTALL_PACKAGES" /&gt;
      &lt;uses-permission android:name="android.permission.INSTANT_APP_FOREGROUND_SERVICE" /&gt;
  </code></pre>
  
  <p>App is not installing.I get the installation page of the APK where I have to install the APK manually.But I need the APK to get installed automatically through code. </p>