Introduction - If you have any usage issues, please Google them yourself
ListView asynchronous load images on the feature presentation, mainly based on reading the image url return method stream. To facilitate the presentation, the first fixed link requests picture, a picture of a good read on each update, the interface is relatively simple to be a loading effect, the picture will be removed once the loading, display pictures. AsyncTask which overloaded method doInBackground operation can not relate to update the UI interface, or be wrong.