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I am trying to inflate UI elements from service. But getting WindowManager$InvalidDisplayException - the specified window type -1 is not valid error. My code is like below,

WindowManager windowManager = (WindowManager)getSystemService(WINDOW_SERVICE);
LayoutInflater inflater = (LayoutInflater)getSystemService(LAYOUT_INFLATER_SERVICE);
RelativeLayout layout = (RelativeLayout) inflater.inflate(R.layout.box, null);
WindowManager.LayoutParams params = new WindowManager.LayoutParams(
       WindowManager.LayoutParams.MATCH_PARENT,
       WindowManager.LayoutParams.MATCH_PARENT,
       PixelFormat.TRANSLUCENT));
windowManager.addView(layout, params);
I am getting this error,
android.view.WindowManager$InvalidDisplayException: Unable to add window android.view.ViewRootImpl$W@8b06417 -- the specified window type -1 is not valid
    at android.view.ViewRootImpl.setView(ViewRootImpl.java:725)
    at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:342)
    at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:94)
    at com.firebaseapp.privacy.MyIntentService.handleAction(MyIntentService.java:33)
    at com.firebaseapp.privacy.MyIntentService.onHandleIntent(MyIntentService.java:20)
    at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:68)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:154)
    at android.os.HandlerThread.run(HandlerThread.java:61)
                try allowing permission manually , in settings -> app permission-> special permissions check it
– Abdul Kawee
                Apr 12, 2018 at 6:30
        
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