小编bil*_*ore的帖子

我正在尝试使用Swift显示和保存图像.在第一次点击时,它在imageview上显示远程图像,在第二次点击它显示空白图像视图而不是它应该是在第一次点击时保存的本地图像.

    var paths = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)[0] as String
    var imagePath = paths.stringByAppendingPathComponent("images/\(id)/logo.jpg" )
    var checkImage = NSFileManager.defaultManager()

    if (checkImage.fileExistsAtPath(imagePath)) {
        let getImage = UIImage(contentsOfFile: imagePath)
        self.image?.image = getImage
    } else {
        dispatch_async(dispatch_get_main_queue()) {
            let getImage =  UIImage(data: NSData(contentsOfURL: NSURL(string: remoteImage)))
            UIImageJPEGRepresentation(getImage, 100).writeToFile(imagePath, atomically: true)
            self.image?.image = getImage
        }
    }

编辑:这个对我有用.

var paths = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)[0] as String
var dirPath = paths.stringByAppendingPathComponent("images/\(id)" )
var imagePath = paths.stringByAppendingPathComponent("images/\(id)/logo.jpg" )
var checkImage = NSFileManager.defaultManager()

if (checkImage.fileExistsAtPath(imagePath)) {
    let getImage = UIImage(contentsOfFile: …