Navigate from one app to another using Xamarin

Question

I need to Navigate from one app to another in Xamarin.Forms.

Tried this but didn't work

await Xamarin.Essentials.Launcher.OpenAsync("myapp://com.companyname.myapp1");

Answer 1

Suppose the package name of the app you want to open is com.xamarin.secondapp.

Then you need to add IntentFilter and Exported =true to MainActivity.cs of the app you want to open(com.xamarin.secondapp).

Just as follows.

    [Activity(Label = "SearchBarDemos", Icon = "@mipmap/icon", Theme = "@style/MainTheme", MainLauncher = true,Exported =true, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation)] 
    [
    IntentFilter
    (
        new[] { Android.Content.Intent.ActionView },
        Categories = new[]
            {
                Android.Content.Intent.CategoryDefault,
                Android.Content.Intent.CategoryBrowsable
            },
        DataSchemes = new[] { "myapp" }
    )
]
    public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsAppCompatActivity
    {
        protected override void OnCreate(Bundle savedInstanceState)
        {
            base.OnCreate(savedInstanceState);

            global::Xamarin.Forms.Forms.Init(this, savedInstanceState);
            LoadApplication(new App());
        }
    }

Note: remember to add code DataSchemes = new[] { "myapp" }.

For the current app, you need to add queries tag for the app you want to open in file manifest.xml.

For example:

  <?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" android:versionCode="1" android:versionName="1.0" package="com.companyname.openappapp1">
    <uses-sdk android:minSdkVersion="21" android:targetSdkVersion="33" />
    <application android:label="OpenappApp1.Android" android:theme="@style/MainTheme">

      </application>
      <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />


      <queries>
            <package android:name="com.xamarin.secondapp" />
      </queries>
</manifest>

And the code is:

    private void Button_Clicked(object sender, EventArgs e) 
    {
        OpenSecondApp();
    }

    public async void OpenSecondApp()
    {

        var supportsUri = await Launcher.CanOpenAsync("myapp://");
        if (supportsUri)
            await Launcher.OpenAsync("myapp://com.xamarin.secondapp");

    }