How to fix an error when downloading an image from the server?

Question

Android

I upload a file using this method:

try {
            String fileName = url.substring(url.lastIndexOf('/') + 1, url.length());
            Log.w("isInCache", manager.hasImageInCache(fileName) + " " + fileName + " " + path + File.separator + fileName);
            if (!manager.hasImageInCache(fileName)) {
                URL urlConnect = new URL(url);
                ReadableByteChannel byteChannel = Channels.newChannel(urlConnect.openStream());
                FileOutputStream outputStream = new FileOutputStream(path + File.separator + fileName);
                outputStream.getChannel().transferFrom(byteChannel, 0, Integer.MAX_VALUE);
                outputStream.close();
                byteChannel.close();
                return manager.putImage(fileName, BitmapFactory.decodeFile(path + File.separator + fileName));
            } else {
                return manager.getImage(fileName);
            }

        } catch (IOException e) {
            Log.w("Download Exception: ", e.getMessage());
            return null;
        }
    }

Gives an error message:

E/AndroidRuntime: FATAL EXCEPTION: Thread-408
                  Process: *package*, PID: 7527
                  java.lang.OutOfMemoryError: Failed to allocate a 2147483659 byte allocation with 4194304 free bytes and 290MB until OOM
                      at java.nio.ByteBuffer.allocate(ByteBuffer.java:56)
                      at java.nio.FileChannelImpl.transferFrom(FileChannelImpl.java:397)
                      at *package*.Util.HttpGetUtility.downloadFile(HttpGetUtility.java:87)
                      at *package*.NewsActivity$1.run(NewsActivity.java:100)
                      at java.lang.Thread.run(Thread.java:818)

I run the method in a separate thread, I try to load a picture weighing ~ 870 KB.

Answer 1

For what purpose are you uploading the image?
From office. documentation:
Note: There are several libraries that follow best practices for loading images. You can use these libraries in your app to load images in the most optimized manner. We recommend the Glide library, which loads and displays images as quickly and smoothly as possible. Other popular image loading libraries include Picasso from Square and Fresco from Facebook. These libraries simplify most of the complex tasks associated with bitmaps and other types of images on Android.
If, in order to display in ImageView, I advise you to use (however, like google) popular libraries, for example picasso square.github.io/picasso
If not, then it will be useful for youhttps://developer.android.com/topic/performance/gr...