(The most troublesome thing on Android is to get pictures, display and recycle from the network. If there is a problem in any link, you can directly OOM. This project may help you. The purpose of Universal Image Loader for Android is to realize asynchronous network image loading, caching and display, and support multi-threaded asynchronous loading. It was originally derived from FedorVlasov's project, and since then, it has been reconstructed and improved in a large range. This document includes the following annexes:)