如何从 Android 中的另一个应用程序启动 Activity 30

Question

I have been using the following code to open my other app from within my app. This code works upto Android 29 devices but this code does not work in Android 30 devices. Can somebody please help me make it work for Android 30 as well. Thanks

    case R.id.btAudio:

        Intent launchIntent = getPackageManager().getLaunchIntentForPackage(getString("com.android.audioapp"));
        Intent uin = new Intent(MainActivity.this, AudioInstall.class);
        if (launchIntent != null) {
            startActivity(launchIntent);
        } else {
            startActivity(uin);
        }
        this.finish();
        break;

Answer 1

Android 11 added restrictions regarding the visibility of other apps. Apps that have targetSdk set to >= 30 can't interact with and open other apps without specifying this in the manifest.

To specify that your app interacts with another specific app, you need to add a <queries> element to your manifest file:

<manifest package="com.example.game">
    <queries>
        <package android:name="com.android.audioapp" />
    </queries>
    ...
</manifest>

The link below contains other examples in case you need to specify a broader range of apps which you want to interact with.

Source: https://developer.android.com/training/basics/intents/package-visibility