Display Image From Parse In Swift

Question

I am trying to display the image I have stored in Buddy For Parse into a UIImageView, however I keep getting this error:

Could not cast value of type 'PFFileObject' (0x1045e0568) to 'NSString' (0x1041d75d8). 2019-04-13 18:15:09.869460-0500 PerfectLaptop[43839:3094232] Could not cast value of type 'PFFileObject' (0x1045e0568) to 'NSString' (0x1041d75d8).

I have already stored numerous strings into Parse, and am able to access them with no problems, and have stored the image I wanted to use also, however no matter what I try, I can't seem to get it to work. Many of the solutions I have found include casting the object as a PFFile, however this doesn't seem to exist anymore.

let query = PFQuery(className: "whichOneRecommended")
query.findObjectsInBackground { (objects, error) in
    if error == nil
    {
        if let returnedobjects = objects
        {
            for object in returnedobjects
            {

                if (object["whichOne"] as! String).contains("\(self.whichOneJoined)")
                {
                    self.laptopImage.image = UIImage(named: (object["laptopImage"]) as! String)



                }
            }
        }
    }
}

While the image file is viewable and downloadable in parse, I can't seem to actually have it be displayed in the imageview, and i want the image view to change programmatically by running this function as I have with other parts of the object.

Thanks in advance

If it has solved your issue, it would be helpful if you could accept my answer. If not, let me know and I will try to help further. — Tom Fox
– Tom Fox, Commented Apr 27, 2019 at 22:12

Tom Fox · Accepted Answer · 2019-04-14 14:38:28Z

4

The first thing to note is that PFFile has been renamed to PFFileObject.

You are trying to pass object["laptopImage"] which is a value of type Any to UIImage(named:) which can't be done because that function expects a String.

Firstly you need to create a constant of type PFFileObject:

let file = object["laptopImage"] as? PFFileObject

And then download the file data, create a UIImage from the PFFileObject and assign the image to the UIImageView:

file.getDataInBackground { (imageData: Data?, error: Error?) in
    if let error = error {
        print(error.localizedDescription)
    } else if let imageData = imageData {
        let image = UIImage(data: imageData)
        self.laptopImage.image = image
    }
}

Details on this can be found in the section on files in the iOS Guide.

edited Apr 14, 2019 at 14:38

answered Apr 14, 2019 at 14:19

Tom Fox

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Comments

shamli bawane · Accepted Answer · 2021-12-23 10:19:30Z

0

guard let imageString = message, let imageURL = URL(string: imageString) else { return }

    do {
let imageData = try Data(contentsOf: imageURL)
    image.image = UIImage(data: imageData)
    } catch {

    }

answered Dec 23, 2021 at 10:19

shamli bawane

1

1 Comment

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