Android runOnUiThread不更新UI元素 [英] Android runOnUiThread not updating UI elements

问题描述

我正在开发使用网格视图的android应用程序。我想动态更新网格项目。我的网格项目包含一个标题文本。我试图这样做，但它对我不起作用。

Hi I am developing android application in which I am using grid view. I want to updated grid item dynamically.My grid item contains one title text. I tried to do it like this but it is not working for me.

 ((Activity)context).runOnUiThread(new Runnable()
    {
        public void run()
        {
            Debug.print("this is update progress inside thread  ...");

            owner.setText("Uploading...");

            invalidate();
            requestLayout();
        }
    });

因此在上面的代码中是其打印调试语句。但是不更新网格项内的所有者文本。

So in above code its printing debug statement. But not updating my owner text which is inside grid item.

我也尝试过此操作...

I tried this also...

 Handler handler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            owner.setText("Uploading...");
        }
    };
    handler.sendEmptyMessage(0);

推荐答案

runOnUiThread(new Runnable() {
    @Override
    public void run() {
        Debug.print("Updating UI ...");
        owner.setText("Uploading ...");
        invalidate();
        requestLayout();
    }
});

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