如何从本地视频文件中快速创建缩略图？
例如,如果视频文件路径位于此处：
文件：///Users/Dev/Library/Developer/CoreSimulator/Devices/F33222DF-D8F0-448B-A127-C5B03C64D0DC/data/Containers/Data/Application/4BC62DBF-0108-453C-9324-5BC0E356FE24/tmp/trim.059D11E6 -F0EF-43DB-9E97-CA4F1F95D6B6.MOV
谢谢.
解决方法
翻译自：
First frame of a video using AVFoundation
var err: NSError? = nil
let asset = AVURLAsset(URL: NSURL(fileURLWithPath: "/that/long/path"),options: nil)
let imgGenerator = AVAssetImageGenerator(asset: asset)
let cgImage = imgGenerator.copyCGImageAtTime(CMTimeMake(0,1),actualTime: nil,error: &err)
// !! check the error before proceeding
let uiImage = UIImage(CGImage: cgImage)
let imageView = UIImageView(image: uiImage)
// lay out this image view,or if it already exists,set its image property to uiImage
