android 退出，不锁屏

Cocos2dxGLSurfaceView.java
	public boolean onKeyDown(final int pKeyCode, final KeyEvent pKeyEvent) {
		switch (pKeyCode) {
			case KeyEvent.KEYCODE_BACK:
				Cocos2dxActivity.clossGame();
				return true;
			case KeyEvent.KEYCODE_MENU:
				this.queueEvent(new Runnable() {
					@Override
					public void run() {
						Cocos2dxGLSurfaceView.this.mCocos2dxRenderer.handleKeyDown(pKeyCode);
					}
				});
				return true;
			default:
				return super.onKeyDown(pKeyCode, pKeyEvent);
		}
	}

Cocos2dxActivity.java

import android.app.AlertDialog;
import android.content.DialogInterface;
import android.app.Dialog;
	public static void clossGame()
	{
		log.info("return!");
		Cocos2dxActivity mainActivity = (Cocos2dxActivity) sContext;
		mainActivity.onPause();

		Dialog alertDialog = new AlertDialog.Builder(mainActivity).
                setTitle("游戏提示").
                setMessage("是否确定要退出游戏？").
                setPositiveButton("确定", new DialogInterface.OnClickListener() { 

                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        // TODO Auto-generated method stub
                		Cocos2dxActivity mainActivity = (Cocos2dxActivity) sContext;
                		mainActivity.finish();

                		System.exit(0);
                    }
                }).
                setNegativeButton("取消", new DialogInterface.OnClickListener() { 

                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        // TODO Auto-generated method stub
                		Cocos2dxActivity mainActivity = (Cocos2dxActivity) sContext;
                		mainActivity.onResume();
                    }
                }).
                create();
        alertDialog.show();
	}

import android.view.WindowManager;
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);   //应用运行时，保持屏幕高亮，不锁屏