Upload images without convert to string - java

I need to upload images and i want to show all of images in another page. I have tried to use volley, but it need to encode and decode to show all images. It made my application not responding when i decode all the string of images.
My questions are:
Are there any ways to upload images beside volley?
Are there any ways to upload images using volley without convert them to string (encode)?
Thanks


I implemented it once by positing multi part file using HttpUrlConnection.
Basically you provide the image file input stream, the desired file name and the file's MIME type.
You can access the source code through this link:
https://github.com/MinaSamy/DailySelfie/blob/master/app/src/main/java/bloodstone/dailyselfie/android/utils/PostMultiPart.java

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