我有同样的问题，使用的 AsyncTask的是为我工作。

I had the same issue and using an AsyncTask is working for me.

有在AsyncTask的覆盖三个重要的方法。

There are 3 important methods to override in AsyncTask.

1. doInBackground ：这就是你的背景肉 会发生处理。
2. 在preExecute ：在这里展示您的ProgressDialog（的ShowDialog）
3. onPostExecute ：这里隐藏ProgressDialog（removeDialog或dismissDialog ）

1. doInBackground : this is where the meat of your background processing will occur.
2. onPreExecute : show your ProgressDialog here ( showDialog )
3. onPostExecute : hide your ProgressDialog here ( removeDialog or dismissDialog )

如果你让你的AsyncTask子类作为一个内部类的活动，那么你可以从你的AsyncActivity中调用框架方法的ShowDialog，dismissDialog和removeDialog。

If you make your AsyncTask subclass as an inner class of your activity, then you can call the framework methods showDialog, dismissDialog, and removeDialog from within your AsyncActivity.

下面是AsyncTask的样本实现：

Here's a sample implementation of AsyncTask:

class LoginProgressTask extends AsyncTask<String, Integer, Boolean> {
  @Override
  protected Boolean doInBackground(String... params) {
    try {
      Thread.sleep(4000);  // Do your real work here
    } catch (InterruptedException e) {
      e.printStackTrace();
    }
    return Boolean.TRUE;   // Return your real result here
  }
  @Override
  protected void onPreExecute() {
    showDialog(AUTHORIZING_DIALOG);
  }
  @Override
  protected void onPostExecute(Boolean result) {
    // result is the value returned from doInBackground
    removeDialog(AUTHORIZING_DIALOG);
    Intent i = new Intent(HelloAndroid.this, LandingActivity.class);
    startActivity(i);
  }
}