我有解析和swift的问题,我希望你能帮助我:)
我正在从Parse下载字符串和PFfiles,并希望将其添加到数组中(这很好).
然后我想用字符串数组填充Label(也可以正常工作)和带有PFFile数组的UIImageView,它也是一个Image.
但我总是得到一个错误：
PFFile is not convertible to “UIImage
但是我不知道如何转换这个PFFile以便我可以将它与UIImage View一起使用.
var titles = [String] ()
var fragenImages = [PFFile] ()
@IBOutlet weak var fragenIm: UIImageView!
@IBOutlet weak var fragenFeld: UILabel!
override func viewDidAppear(animated: Bool) {
var query = PFQuery(className:"Post")
query.whereKey("user",notEqualTo: PFUser.currentUser().username)
query.limit = 5
query.findObjectsInBackgroundWithBlock{
(objects: [AnyObject]!,error: NSError!) -> Void in
if error == nil {
for object in objects {
self.titles.append(object["title"] as String)
self.fragenImages.append(object["imageFile"] as PFFile)
}
self.fragenFeld.text = self.titles[0]
self.fragenIm.image = self.fragenImages[0]
}
else {
println(error)
}
}
}
丹尼尔,图片不是文件,从技术上讲它们是,但你将它们称为数据而不是PFObjects或PFFiles.因此,基本上获取文件的数据并按照通常的方式应用：您只是错过了一个简单的步骤：
for object in objects {
let userPicture = object["imageFile"] as PFFile
userPicture.getDataInBackgroundWithBlock({ // This is the part your overlooking
(imageData: NSData!,error: NSError!) -> Void in
if (error == nil) {
let image = UIImage(data:imageData)
self.fragenImages.append(image)
})
