显示progressdialog而列表视图是加载

问题描述

我要显示ProgressDialog而列表视图是加载。我已经尝试过类似下面的代码，但没有奏效。

I want to display ProgressDialog while listview is loading. I've already tried like following coding but it didn't work.

final ProgressDialog dialog = ProgressDialog.show(this, "indeterminate", "Please wait while loading", true);
final Handler handler = new Handler() {
   public void handleMessage(Message msg) {
      dialog.dismiss();
      }
   };
Thread checkUpdate = new Thread() {  
   public void run() {
      // listview will be populated here    
      PopulateListView();           
      handler.sendEmptyMessage(0);
      }
   };
checkUpdate.start();

但是，这并不在所有的工作。

But it didn't work at all.

推荐答案

ppshein ......我想你错过了几个电话。

ppshein... I think you are missing a few calls.

1) new Thread( new Runnable() {
2) super.handleMessage
3) switch(msg.what)

我有工作code 在这里。此外AsyncTask的这里

I have working code here.Also AsyncTask here.

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