android unlock screen intent?

Question

Is there an intent that is fired when a user unlocks their screen? I want my app to adjust the brightness when the screen turns on, but the problem im running into is that

Answer 1

Add the receiver in menifest file

Create a broadcast receiver which works to open app when phone is unlocked.

public class ScreenReceiver extends BroadcastReceiver{

    @Override
    public void onReceive(Context context, Intent intent) {
        System.out.println(intent.getAction());
        if (intent.getAction().equals(Intent.ACTION_USER_PRESENT))
        {
            Intent intent1 = new Intent(context,MainActivity.class); 
            intent1.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);        
            context.startActivity(intent1);
        }
    }

I'm sure it will work.