Android System overlay window

Question

I\'m trying to create a system overlay. But I keep getting \"permission denied\". I\'m using SDK version 23.

My manifest file:

Answer 1

As an alternative solution, you can try WindowManager.LayoutParams.TYPE_TOAST instead of WindowManager.LayoutParams.TYPE_SYSTEM_ALERT. This not requires any permission. I'm using it to show image, maybe button will work to

Answer 2

In AndroidManifest (for version < 23)

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


public static int ACTION_MANAGE_OVERLAY_PERMISSION_REQUEST_CODE= 5469;
//Random value

    public void testPermission() {
        if (!Settings.canDrawOverlays(this)) {
            Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION,
                    Uri.parse("package:" + getPackageName()));
            startActivityForResult(intent, ACTION_MANAGE_OVERLAY_PERMISSION_REQUEST_CODE);
        }
    }

Result :

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == ACTION_MANAGE_OVERLAY_PERMISSION_REQUEST_CODE) {
        if (Settings.canDrawOverlays(this)) {
            // You have permission
        }
    }
}

Answer 3

for users below and above android 8 use

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
   LAYOUT_FLAG = WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY;
} else {
    LAYOUT_FLAG = WindowManager.LayoutParams.TYPE_PHONE;
}

Answer 4

You can also lead the user over to the specific app's overlaying page. The documentation states:

Input: Optionally, the Intent's data URI can specify the application package name to directly invoke the management GUI specific to the package name. For example "package:com.my.app".

So something like:

intent.setData(Uri.fromParts("package", getPackageName(), null));

Answer 5

I handled all of the overlay permissions for every android version in my library. Please see the gist here.

Answer 6

First, there is no permission named SYSTEM_OVERLAY_WINDOW. It is SYSTEM_ALERT_WINDOW.

Second, if your targetSdkVersion is 23 or higher, and you are running on Android 6.0+ devices, your app will not get this permission at the outset. Call Settings.canDrawOverlays() to see if you have the permission, and use ACTION_MANAGE_OVERLAY_PERMISSION to lead the user over to Settings if you do not.