Key event Handling

/**
* Control events listen and handle event keystrokes by setting their space listener: press the event by overriding the OnKeyDown method: By overriding the OnKeyUp method
* Stylus Click event: By implementing the Ontouchevent method
*
* @author Chen_xhua
*
*/
public class Keyactivity extends Activity {
private static final String TAG = "keyactivity";
public void OnCreate (Bundle savedinstancestate) {
Super.oncreate (savedinstancestate);
Setcontentview (R.layout.activity_key);
Get Button Object
Button BUTTON_OK = (button) Findviewbyid (R.ID.BUTTON_OK);
Setting the button control listener
Button_ok.setonclicklistener (New Button.onclicklistener () {
public void OnClick (View arg0) {
Handling Events Here
Displaytoast ("Click OK button");
}
});
}

//Press the trigger event
Public boolean OnKeyDown (Int. KeyCode, KeyEvent event) {
Switch (keycode) {
Case Keyevent.keycode_dpad_center:
Displaytoast ("Press: Middle Key");
Break
Case KEYEVENT.KEYCODE_DPAD_UP:
Displaytoast ("Press: Up ARROW key");
Break
Case Keyevent.keycode_dpad_down:
Displaytoast ("Press: DOWN ARROW key");
Break
Case Keyevent.keycode_dpad_left:
Displaytoast ("Press: Left ARROW key");
Break
Case Keyevent.keycode_dpad_right:
Displaytoast ("Press: Right ARROW key");
Break
}
Return Super.onkeydown (KeyCode, event);
}

Press the key to lift the event that is triggered:
public boolean onKeyUp (int keycode, keyevent event) {
Switch (keycode) {
Case Keyevent.keycode_dpad_center:
Displaytoast ("Pop Up: Middle button");
Break
Case Keyevent.keycode_dpad_down:
Displaytoast ("Pop Up: down ARROW key");
Break
Case Keyevent.keycode_dpad_left:
Displaytoast ("Bounce: Left ARROW key");
Break
Case Keyevent.keycode_dpad_right:
Displaytoast ("Bounce: Right ARROW key");
Break
Case KEYEVENT.KEYCODE_DPAD_UP:
Displaytoast ("Bounce up: Up ARROW key");
Break
}
Return Super.onkeyup (KeyCode, event);
}

Press the trigger event multiple times
public boolean onkeymutiple (int keycode, int repeatcount, keyevent event) {
Return Super.onkeymultiple (KeyCode, RepeatCount, event);
}

Stylus Events
public boolean ontouchevent (Motionevent event) {
int iaction = Event.getaction ();
if (iaction = = Motionevent.action_cancel
|| IAction = = Motionevent.action_down
|| IAction = = Motionevent.action_move) {
return false;
}
Where to get a stylus click
int x = (int) event.getx ();
int y = (int) event.gety ();
Displaytoast ("Stylus Click Coordinates: (" + integer.tostring (x) + ","
+ integer.tostring (y) + ")");
Return Super.ontouchevent (event);

}

Show Toast
public void Displaytoast (String str) {
Toast.maketext (this, str, toast.length_short). Show ();
}

}

Key event Handling