如何显示＆QUOT;装载＆QUOT;在Android的状态？ [英] How to show "Loading" status in Android?

问题描述

我在做一个Android应用程序，它加载虽然互联网的一些数据（只有一些数据 - 不是全部）。所以，当数据加载，和互联网连接速度很慢，我想显示正在加载...图标给用户。

I'm making an Android application and it has to load some data though Internet (only some data-- not all). So when the data is loading, and the Internet connection is slow, I want to show a "Loading..." icon to the user.

所以，我该怎么办呢？显示正在加载...图标，在数据被加载在后台，当其完全加载，隐藏图标？

So how can I do this? Show a "Loading..." icon while the data is being loaded in the background, and when its completely loaded, hide the icon?

在此先感谢！

推荐答案

使用异步任务为你的状态。

use Async Task for your status.

new SomeTask(0).execute();

/** Inner class for implementing progress bar before fetching data **/
private class SomeTask extends AsyncTask<Void, Void, Integer> 
{
    private ProgressDialog Dialog = new ProgressDialog(yourActivityClass.this);

    @Override
    protected void onPreExecute()
    {
        Dialog.setMessage("Doing something...");
        Dialog.show();
    }

    @Override
    protected Integer doInBackground(Void... params) 
    {
        //Task for doing something 

        return 0;
    }

    @Override
    protected void onPostExecute(Integer result)
    {

        if(result==0)
        {
             //do some thing
        }
        // after completed finished the progressbar
        Dialog.dismiss();
    }
}

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