从ParseUser检索图像时遇到问题

Question

I want to retrieve images from default User class from Parse.com. I only want values from the column named "Image".

ParseUser currentuser = ParseUser.getCurrentUser();
ParseQuery<ParseObject> query = new ParseQuery<ParseObject>("following");
query.whereEqualTo("username", currentuser);

try {
    ob = query.find();
} catch (ParseException e) {
    e.printStackTrace();
}

"Image" is the column name.

for (ParseObject user : ob) {
    // Locate images in pic column
    image = (ParseFile) user.get("Image");
}

How can I apply a loop to get all image files in a list?

image.getDataInBackground(new GetDataCallback() {
     public void done(byte[] data, ParseException e) {
         if (e == null) {
             Bitmap pictureBitMap = BitmapFactory.decodeByteArray(data, 0, data.length);

             img.setImageBitmap(pictureBitMap);

             listView.setAdapter(new myCustomList(MainActivity.this));
         } else {
             // something went wrong
         }
     } 
});

Answer 1

Consider using an open source library such as Universal Image Loader(UIL) so you wouldn't have to do the heavy lifting of downloading the file converting it to Bitmap and setting it to an imageView.

Basically you can retrieve the url from parseFile

String url = parseFile.getUrl();

And in UIL simply pass the url and the imageView

imageLoader.displayImage(imageUri, imageView);