Swift PHAsset 到 UIImage

发布于06月16日

我正试图从一个相位集创建一个UIImage(比如缩略图或其他东西)，这样我就可以将它传递到获取UIImage的东西中.我try 过调整我在SO上找到的解决方案(因为它们都只是直接将其传递到tableview或其他东西中)，但没有成功(可能是因为我做得不对).

func getAssetThumbnail(asset: PHAsset) -> UIImage {
    var retimage = UIImage()
    println(retimage)
    let manager = PHImageManager.defaultManager()
    manager.requestImageForAsset(asset, targetSize: CGSize(width: 100.0, height: 100.0), contentMode: .AspectFit, options: nil, resultHandler: {(result, info)->Void in
            retimage = result
    })
    println(retimage)
    return retimage
}

印刷厂告诉我经理.请求热线现在什么都没做.我如何让它以UIImage的形式将assets资源提供给我.

谢谢

Edit: Swift 3 update

func getAssetThumbnail(asset: PHAsset) -> UIImage {
    let manager = PHImageManager.default()
    let option = PHImageRequestOptions()
    var thumbnail = UIImage()
    option.isSynchronous = true
    manager.requestImage(for: asset, targetSize: CGSize(width: 100, height: 100), contentMode: .aspectFit, options: option, resultHandler: {(result, info)->Void in
        thumbnail = result!
    })
    return thumbnail
}