如何禁用Android键盘的箭头键

Question

im displaying web page content in webview and i want to disable the all 4 arrow key of android keyboard. any idea?

edit:

public boolean onKeyDown(int keyCode, KeyEvent event) {
    int a;
     Log.d("yourTag",""+event.getAction());
    System.out.println(a=event.getAction());
    System.out.println(keyCode);
      if(event.getAction()==20){
         return true;
      }
      else if(event.getAction()==21){
          return true;
      }
      else if(event.getAction()==22){
          return true;
      }
      else{
              return true;
      }

    }

scrolling still there but back key and menu key is disabled why? i noticed it returns nothing if content is scrolling. once scrolling ends it(log.d message) returns 0.

Answer 1

You can catch them in an onkeydown?

public boolean onKeyDown(int keyCode, KeyEvent event) {
  if(event.getAction() == /*INSERT YOUR KEY*/){
    //do something with the arrows. or ignore them
    //return true or false depending on if you want to "catch" the event i guess
  }else{
      return super.onKeyDown(keyCode, event);
  }
}

You'd only have to find the code for the arrow-keys, that shouldn't be to hard. You could even just Log.d your event.getAction() , and press them, to find out what they're called...

I don't really know what you are doing with your debugcode, but check out this link: http://developer.android.com/reference/android/view/KeyEvent.html for the key events. The events are integers. Why don't you add this for debugging:

public boolean onKeyDown(int keyCode, KeyEvent event) {
    Log.d("yourTag",""+event.getAction());
}

and see what's returned? My guess would be one of the DPAD keys, for instance left ( 21 ) are your target