android加载数据时显示不同状态,如何在Android中显示“正在加载”状态？

使用异步任务为您的状态.

new SomeTask(0).execute();

/** Inner class for implementing progress bar before fetching data **/

private class SomeTask extends AsyncTask

{

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();

}

}