What does this 4 line java code means in android application?

Question

In my java application i have this code

@Override
public void onAttachedToWindow()
  {
  this.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD_DI         


        

Answer 1

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

is used to disable home button in android but

this security flaw has been fixed in newer versions of Android so it will not work in ICS and jelly bean...!!

Answer 2

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

I had some problems with windowAttached as well, try using windowFocusChanged instead.

Answer 3

I've solved this issue putting

this.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);

in onCreate before calling super.

 protected void onCreate(Bundle savedInstanceState) {

        this.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);

        super.onCreate(savedInstanceState);
}

Saludos desde Medellín