How to programmatically grant the “draw over other apps” permission in android?

Question

How can I programmatically grant the permission in Settings -> Apps -> Draw over other apps in Android? I want to use system alert window but unable to in

Answer 1

Check this question and the answer:

SYSTEM_ALERT_WINDOW - How to get this permission automatically on Android 6.0 and targetSdkVersion 23

"Every app that requests the SYSTEM_ALERT_WINDOW permission and that is installed through the Play Store (version 6.0.5 or higher is required), will have granted the permission automatically."

Answer 2

You can check and ask for overlay permission to draw over other apps using this

if (!Settings.canDrawOverlays(this)) {
    Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION, Uri.parse("package:" + getPackageName()));
    startActivityForResult(intent, 0);
}

Answer 3

if (!Settings.canDrawOverlays(this)) {
    Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION, 
Uri.parse("package:" + getPackageName()));
    startActivityForResult(intent, 0);
}

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