相关疑难解决方法(0)

我想从更新Progressbar的Thread更新我的UI.不幸的是,当从"runnable"更新进度条的drawable时,进度条消失了!改变进度onCreate()栏的绘图可用于其他工作!

有什么建议？

public void onCreate(Bundle savedInstanceState) {
    res = getResources();
    super.onCreate(savedInstanceState);
    setContentView(R.layout.gameone);
    pB.setProgressDrawable(getResources().getDrawable(R.drawable.green)); //**Works**/
    handler.postDelayed(runnable, 1);       
}

private Runnable runnable = new Runnable() {
    public void run() {  
        runOnUiThread(new Runnable() { 
            public void run() 
            { 
                //* The Complete ProgressBar does not appear**/                         
                pB.setProgressDrawable(getResources().getDrawable(R.drawable.green)); 
            } 
        }); 
    }
}