如何在Android中显示“正在加载”状态？

使用异步任务来获取您的状态。

new Sometask(0).execute();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();    }}