android离线调试和打包不能用mui的$.back,帮忙解答，并报错以下错误

在集成5+SDK时，如果需要在页面中处理Activity获取的事件，需要在相对应的方法中调用SDK的方法将事件传入到SDK中

@Override  
    public boolean onKeyDown(int keyCode, KeyEvent event) {  
        boolean _ret = mEntryProxy.onActivityExecute(this,SysEventType.onKeyDown, new Object[]{keyCode,event});  
        return _ret ? _ret : super.onKeyDown(keyCode, event);  
    }  
    @Override  
    public boolean onKeyUp(int keyCode, KeyEvent event) {  
        boolean _ret = mEntryProxy.onActivityExecute(this,SysEventType.onKeyUp, new Object[]{keyCode,event});  
        return _ret ? _ret : super.onKeyUp(keyCode, event);  
    }  
    @Override  
    public boolean onKeyLongPress(int keyCode, KeyEvent event) {  
        boolean _ret = mEntryProxy.onActivityExecute(this, SysEventType.onKeyLongPress, new Object[]{keyCode,event});  
        return _ret ? _ret : super.onKeyLongPress(keyCode, event);  
    }