Kapila Ranasinghe Kapila Ranasinghe - 5 months ago 60
Java Question

Android Home Button Disable error

I'm developing some android application .In application i want to disable home button .

So i tried to overide

onAttachedToWindow
method, but the problem is i getting a error when start application.

Code :

@Override
public void onAttachedToWindow(){
this.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);
super.onAttachedToWindow();
}


Error :


java.lang.IllegalArgumentException: Window type can not be changed after the window is added.
at android.os.Parcel.readException(Parcel.java:1603)
at android.os.Parcel.readException(Parcel.java:1552)
at android.view.IWindowSession$Stub$Proxy.relayout(IWindowSession.java:912)
at android.view.ViewRootImpl.relayoutWindow(ViewRootImpl.java:5415)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1581)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1107)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6013)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:858)
at android.view.Choreographer.doCallbacks(Choreographer.java:670)
at android.view.Choreographer.doFrame(Choreographer.java:606)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:844)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)


any one have idea , what is the error of this code ?

Answer

As I mentioned in other question, you are not able to disable or override, or even detect home button. Set type of window you can only before setContentView().