While on lenevo I get this

[paragsarkar]

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.geolocator/com.geolocator.MainActivity}: android.view.WindowManager$BadTokenException: Unable to add window android.view.ViewRootImpl$W@4ce38e0 -- permission denied for window type 2010 at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2724) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2789) at android.app.ActivityThread.-wrap12(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1527) at android.os.Handler.dispatchMessage(Handler.java:110) at android.os.Looper.loop(Looper.java:203) at android.app.ActivityThread.main(ActivityThread.java:6251) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1063) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:924) Caused by: android.view.WindowManager$BadTokenException: Unable to add window android.view.ViewRootImpl$W@4ce38e0 -- permission denied for window type 2010 at android.view.ViewRootImpl.setView(ViewRootImpl.java:820) at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:351) at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:93) at android.app.Dialog.show(Dialog.java:322) at com.geolocator.HomeKeyLocker.lock(HomeKeyLocker.java:22) at com.geolocator.MainActivity.onCreate(MainActivity.java:26) at android.app.Activity.performCreate(Activity.java:6684) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2677)