安卓：ProgressDialog不旋转 [英] Android: ProgressDialog not spinning

问题描述

我有得到ProgressDialog轮毂旋压问题。这里是我的code：

I am having problems getting the ProgressDialog wheel spinning. Here is my code:

final ProgressDialog dialog = ProgressDialog.show(this, "", "Loading...", true, false);
Thread thread=new Thread(new Runnable(){
    public void run(){
    runOnUiThread(new Runnable(){
        @Override
        public void run() {
            if(dialog.isShowing())
                // starts a foreground service, does database stuff, 
                // sets up a spinner with values
                dialog.dismiss();
            }

        });
    }
});

thread.start();

一切按计划进行，我得到的ProgressDialog，事情发生在后台，一旦设置，ProgressDialog消失 - 唯一的问题是，在ProgressDialog动画不旋转，pretty多少使之无用

Everything goes as planned, I get the ProgressDialog, stuff happens in the background and once set, ProgressDialog goes away - the only problem is that the animation in ProgressDialog is not spinning, pretty much rendering it useless.

我在做什么错了？

推荐答案

在code你这里省略了

The code you omitted here

        // starts a foreground service, does database stuff, 
        // sets up a spinner with values

必须这样做，阻止UI线程的东西。只要把它们外 runOnUiThread（）方法。

Thread thread=new Thread(new Runnable(){
    public void run(){
        // starts a foreground service, does database stuff, 
        // sets up a spinner with values
        runOnUiThread(new Runnable(){
            @Override
            public void run() {
            if(dialog.isShowing())
                dialog.dismiss();
            }

        });
    }
});

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