Android后退按钮不起作用 [英] Android back button does not work

问题描述

我正在使用cocos2dx制作一个小游戏，在我的游戏活动中，我提供了以下功能来处理后退按钮。

I am using cocos2dx to make a small game and in the activity of my game i give the following functions to handle back button.

@Override
 public boolean onKeyDown(int keyCode, KeyEvent event)
 {
     return super.onKeyDown(keyCode, event);
 }

 @Override
 public void onDestroy()
 {
     android.os.Process.killProcess(android.os.Process.myPid());
     super.onDestroy();
 }

按下后退按钮我在logcat中收到以下警告

On pressing back button i get the following warning in my logcat

无法打开keycharmap文件

Can't open keycharmap file

加载keycharmap文件'/ system / usr / keychars时出错/qtouch-touchscreen.kcm.bin'。 hw.keyboards.65538.devname ='qtouch-touchscreen'

Error loading keycharmap file '/system/usr/keychars/qtouch-touchscreen.kcm.bin'. hw.keyboards.65538.devname='qtouch-touchscreen'

该调用未达到onKeyDown或onDestroy函数。

The call doesn't reach onKeyDown or onDestroy functions.

请告诉我为什么会出现此警告以及为什么我无法处理安卓后退按钮。

Please tell me why this warning is caused and why i cannot handle the android back button.

这些功能正常工作我的java android项目，但不在我的cocos2d-x项目中

The functions work fine on my java android project but not in my cocos2d-x project

推荐答案

此处已在文件 Cocos2dxGLSurfaceView.java

将其更改为以下，其中 myActivity 是cocos2dActicity

change it to below, where myActivity is the cocos2dActicity

        case KeyEvent.KEYCODE_BACK:
                    AlertDialog ad = new AlertDialog.Builder(myActivity)
                    .setTitle("EXIT?")
                    .setMessage("Do you really want to exit?")
                    .setPositiveButton("YES", new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int which) {
                            ((Cocos2dxActivity)myActivity).finish();
                        }
                    })
                    .setNegativeButton("NO", new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int which) {

                        }
                    }).create();
                    ad.show();
            return true;
        case KeyEvent.KEYCODE_MENU:

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