原因很简单， android的按键事件触发的是onKeyReleased。而不是onKeyPressed。

下面贴上关键代码

1.android部分响应按键，接下来就调用jni接口了

    public boolean onKeyDown(final int pKeyCode, final KeyEvent pKeyEvent) {        switch (pKeyCode) {            case KeyEvent.KEYCODE_BACK:                Cocos2dxVideoHelper.mVideoHandler.sendEmptyMessage(Cocos2dxVideoHelper.KeyEventBack);            case KeyEvent.KEYCODE_MENU:            case KeyEvent.KEYCODE_DPAD_LEFT:            case KeyEvent.KEYCODE_DPAD_RIGHT:            case KeyEvent.KEYCODE_DPAD_UP:            case KeyEvent.KEYCODE_DPAD_DOWN:            case KeyEvent.KEYCODE_ENTER:            case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:            case KeyEvent.KEYCODE_DPAD_CENTER:                this.queueEvent(new Runnable() {                    @Override                    public void run() {                       <span style="color:#FF0000;"> Cocos2dxGLSurfaceView.this.mCocos2dxRenderer.handleKeyDown(pKeyCode);</span>                    }                });                return true;            default:                return super.onKeyDown(pKeyCode, pKeyEvent);        }    }

    JNIEXPORT jboolean JNICALL Java_org_cocos2dx_lib_Cocos2dxRenderer_nativeKeyDown(JNIEnv * env, jobject thiz, jint keyCode) {
        Director* pDirector = Director::getInstance();
        
        auto iterKeyCode = g_keyCodeMap.find(keyCode);
        if (iterKeyCode == g_keyCodeMap.end()) {
            return JNI_FALSE;
        }
        
        cocos2d::EventKeyboard::KeyCode cocos2dKey = g_keyCodeMap.at(keyCode);
        <span style="color:#FF0000;">cocos2d::EventKeyboard event(cocos2dKey, false); // 虽然是keyDown，但被设置为released消息</span>
        cocos2d::Director::getInstance()->getEventDispatcher()->dispatchEvent(&event);
        return JNI_TRUE;
        
    }}

诶。。。。。

cocos2dx3.2在android上返回键无法响应问题解决