Question

In my app i do not want the user be able to exit my app on pressing the Home press key. There’s a specific reason for not allowing the user to do this. Can anyone suggest what can be the correct way to achieve this?

At present what i am doing is Overriding the onKeyDown()-Method. The Code for it is as follows:

@Override
public boolean onKeyDown(int keyCode, KeyEvent event)
{
    if (keyCode == KeyEvent.KEYCODE_BACK || keyCode == KeyEvent.KEYCODE_HOME) 
    {
       Intent intent = new Intent(this, LockScreen.class);
       intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
       startActivity(intent);
    }
    return true;
}

In the Manifest file i am making changes as below:

<activity android:name=".LockScreen"
  android:screenOrientation="portrait"
  android:theme="@android:style/Theme.NoTitleBar.Fullscreen">
    <intent-filter>             
    <category android:name="android.intent.category.HOME"/>
    </intent-filter>
</activity>

Answer 1

I agree with inazaruk but if you still want to do that then you need to override:

@Override
public void onAttachedToWindow() {

  this.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD);
  super.onAttachedToWindow();

}