Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
288 views
in Technique[技术] by (71.8m points)

ios - How to convert an PFFile to an UIImage with swift?

How do i convert an PFFile to an UIImage with swift?

In this code, the app is getting the file from parse and now i want it to show on a UIImageView, But i get an error...

Here is my code...

 var ImageArray:UIImage = [UIImage]()
    var textArray:String = [String]()

     var query = PFQuery(className:"ClassName")

            query.findObjectsInBackgroundWithBlock {
                (objects: [AnyObject]?, error: NSError?) -> Void in

                if error == nil {


                    if let objects = objects as? [PFObject] {
                        for object in objects {
     //this works fine                       
self.textArray.append(object.valueForKey("Image")! as! String)



    //this does not work...
                            self.ImageArray.append(object.valueForKey("Image")! as! PFFile)
    //I get an error that says PFFile is not convertible to UIImage. How do i convert it?






                        }
                    }
                } else {
                    // Log details of the failure
                    println("Error: (error!) (error!.userInfo!)")
                }
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

PFFile is a parse representation of anykind of file. To get the "real" file (image), you need to call getDataInBackgroundWithBlock. Try it:

if let userPicture = object.valueForKey("Image")! as! PFFile {
   userPicture.getDataInBackgroundWithBlock({
      (imageData: NSData!, error NSError!) -> Void in
         if (error == nil) {
            let image = UIImage(data:imageData)
            self.ImageArray.append(image)
         }
      })
}

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...