安卓 : load an imageview from a Parsefile

Question

我试图通过“objectId”找到一个 ParseObject，然后检索图像“ImageFile”，然后将其加载到 imageview，它不起作用，我正在获取 USER 字符串，你能帮帮我吗有了这个，当我使用另一个查询时它可以工作:query.find()

      ParseImageView mealImage = (ParseImageView) findViewById(R.id.icon);

    ParseQuery<ParseObject> query1 = ParseQuery.getQuery("Annonces");


    query1.getInBackground("ux3Af0cwEx", new GetCallback<ParseObject>() {
      public void done(ParseObject Annonces, ParseException e) {


             photoFile = (ParseFile) Annonces.get("ImageFile");
             text1.setText((CharSequence) Annonces.get("USER"));

      }
    });
    mealImage.setParseFile(photoFile);
    mealImage.loadInBackground(new GetDataCallback() {
        @Override
        public void done(byte[] data, ParseException e) {

        }
    });

    }

Answer 1

在imageview中显示图片的代码:

ParseFile image = (ParseFile) userData.getParseFile("user_image");

然后调用下面的函数。

loadImages( photoFile, mealImage);

---

private void loadImages(ParseFile thumbnail, final ImageView img) {

    if (thumbnail != null) {
        thumbnail.getDataInBackground(new GetDataCallback() {
            @Override
            public void done(byte[] data, ParseException e) {
                if (e == null) {
                    Bitmap bmp = BitmapFactory.decodeByteArray(data, 0, data.length);
                    img.setImageBitmap(bmp);
                } else {
                }
            }
        });
    } else {
        img.setImageResource(R.drawable.menu);  
    }
}// load image