Cocos2d-x back button twice click exit

I want to use back button function on Cocos2d-x application
(In all View)

So, I use onBackPressed(), onKeyDown(), onKeyUp() functions but
not working.

But dispatchKeyEvent() function worked.

code is here

	/****************************************************************************
	Copyright (c) 2008-2010 Ricardo Quesada
	Copyright (c) 2010-2012 cocos2d-x.org
	Copyright (c) 2011 Zynga Inc.
	Copyright (c) 2013-2014 Chukong Technologies Inc.
	http://www.cocos2d-x.org
	Permission is hereby granted, free of charge, to any person obtaining a copy
	of this software and associated documentation files (the "Software"), to deal
	in the Software without restriction, including without limitation the rights
	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	copies of the Software, and to permit persons to whom the Software is
	furnished to do so, subject to the following conditions:
	The above copyright notice and this permission notice shall be included in
	all copies or substantial portions of the Software.
	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	THE SOFTWARE.
	****************************************************************************/
	package org.cocos2dx.cpp;
	import android.util.Log;
	import android.widget.Toast;
	import android.os.Handler;
	import android.os.Bundle;
	import android.view.KeyEvent;
	import org.cocos2dx.lib.Cocos2dxActivity;
	import org.cocos2dx.lib.Cocos2dxGLSurfaceView;
	public class AppActivity extends Cocos2dxActivity {
	private boolean doubleBackToExitPressedOnce = false;
	protected void onCreate(Bundle savedInstanceState)
	{
	super.onCreate(savedInstanceState);
	}
	public Cocos2dxGLSurfaceView onCreateView() {
	Cocos2dxGLSurfaceView glSurfaceView = new Cocos2dxGLSurfaceView(this);
	// create stencil buffer
	glSurfaceView.setEGLConfigChooser(5, 6, 5, 0, 16, 8);
	return glSurfaceView;
	}
	@Override
	public boolean dispatchKeyEvent(KeyEvent event) {
	if(event.getKeyCode()==KeyEvent.KEYCODE_BACK && event.getAction() == KeyEvent.ACTION_UP) {
	if (doubleBackToExitPressedOnce) {
	//Log.d("robot", "back key clicked");
	System.exit(0);
	}
	this.doubleBackToExitPressedOnce = true;
	Toast.makeText(this, "Press once again to exit", Toast.LENGTH_SHORT).show();
	new Handler().postDelayed(new Runnable() {
	@Override
	public void run() {
	doubleBackToExitPressedOnce=false;
	}
	}, 2000);
	return true;
	}
	else {
	return super.dispatchKeyEvent(event);
	}
	}
	}

view raw AppActivity.java hosted with ❤ by GitHub

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