SDWebImage 4.1.1 已发布，SDWebImage 是非常流行的 iOS 图片加载框架，提供了一个 UIImageView 的 category 用来加载网络图片并且对网络图片的缓存进行管理，采用异步方式来下载网络图片。更新内容如下： 修复 Fixed crash on [SDWebImageDownloaderOperation reset]_block_invoke 2f892f9 fixes #1883 Fixed SDWebImageDownloadOperation imageData multi-thread issue #2011 fixes #1998[SDWebImageDownloaderOperation URLSession:dataTask:didReceiveData:] crash Fixed CFRelease on NULL if CGImageSourceRef create failed #1978 fixes #1968 #1834 #1947 Fixed request cache policy #1994 #2032 fixes #1993 #1861 #1623 was introduced by #1737(unit test #2031) Fixed CGBitmapContextCreate bitmap memory leak #1976 replaces #1860 fixes #1974 Fixed issue #2001, add sd_currentBackgroundImageURL and sd_backgroundImageURLForState: for UIButton #2002 Set UIButton placeholer-image even if the url is nil #2043 fixes #1721 #1964 replaces #1790 Use CGImageSourceCreateIncremental to perform progressive decoding instead of decode partial data each time from the beginning to improve performance and remove that gray background #2040 fixes #1899 Fix SDWebImage v4 can not import libwebp framework's header files #1983 fixes #1887 Fix unreachable code build warning on macOS #1984 改进 Performance enhancement related to single WebP and animated WebP decoding #1985 fixes #1999 #1885 Use FOUNDATION_EXPORT over extern #1977 Move common test logic to SDTestCase #1980 Enabled CLANG_WARN_STRICT_PROTOTYPES #1995 #2027 fixes #2022 Update macOS Demo deployment target to 10.10 to support build on Xcode 9 #2035 文档 Updated Manual Installation section #2030 fixes #2012 下载地址： Source code (zip) Source code (tar.gz) SDWebImage 4.1.1 发布，iOS 图片加载框架下载地址
