Hookiverse

fix crash when run in android studio

Cannot call removeOnDrawListener inside of onDraw

3

``` java.lang.IllegalStateException: Cannot call removeOnDrawListener inside of onDraw at android.view.ViewTreeObserver.removeOnDrawListener(ViewTreeObserver.java:704) at curtains.internal.NextDrawListener$onDraw$1.run(NextDrawListener.kt:27) at android.os.Handler.handleCallback(Handler.java:790) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:164) at android.app.ActivityThread.main(ActivityThread.java:6523) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:857) ```