Picking image from gallery in Swift - ios

Question

I have a image view inside the view controller. I want to set this image when user selects an image from gallery.
I tried this code:
#IBOutlet var profilePicture: UIImageView!
func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image: UIImage!, editingInfo: [NSObject : AnyObject]!) {
self.dismissViewControllerAnimated(true, completion:nil)
println("image selected from gallery")
self.profilePicture.image = image
}
It prints debug message to console but it is not changing the image. How can I fix this ?

Answer 1

You just forgot to assign image you got from gallery to your UIImageView.
#IBOutlet var profilePicture: UIImageView!
func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image: UIImage!, editingInfo: [NSObject : AnyObject]!) {
profilePicture.image = image
self.dismissViewControllerAnimated(true, completion: { () -> Void in
})
println("image selected from gallery")
self.profilePicture.image=image
}

Answer 2

Can you try this code:
#IBOutlet var profilePicture: UIImageView!
func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image: UIImage!, editingInfo: [NSObject : AnyObject]!) {
self.dismissViewControllerAnimated(true, completion: { () -> Void in
})
println("image selected from gallery")
dispatch_async(dispatch_get_main_queue()) {
self.profilePicture.image=image
}
}

Answer 3

#IBAction func chooseProfilePicBtnClicked(sender: AnyObject) {
let alert:UIAlertController=UIAlertController(title: "Choose Image", message: nil, preferredStyle: UIAlertControllerStyle.ActionSheet)
let cameraAction = UIAlertAction(title: "Camera", style: UIAlertActionStyle.Default)
{
UIAlertAction in
self.openCamera()
}
let gallaryAction = UIAlertAction(title: "Gallary", style: UIAlertActionStyle.Default)
{
UIAlertAction in
self.openGallary()
}
let cancelAction = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel)
{
UIAlertAction in
}
// Add the actions
picker.delegate = self
alert.addAction(cameraAction)
alert.addAction(gallaryAction)
alert.addAction(cancelAction)
self.presentViewController(alert, animated: true, completion: nil)
}
func openCamera(){
if(UIImagePickerController .isSourceTypeAvailable(UIImagePickerControllerSourceType.Camera)){
picker.sourceType = UIImagePickerControllerSourceType.Camera
self .presentViewController(picker, animated: true, completion: nil)
}else{
let alert = UIAlertView()
alert.title = "Warning"
alert.message = "You don't have camera"
alert.addButtonWithTitle("OK")
alert.show()
}
}
func openGallary(){
picker.sourceType = UIImagePickerControllerSourceType.PhotoLibrary
self.presentViewController(picker, animated: true, completion: nil)
}
//MARK:UIImagePickerControllerDelegate
func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]){
picker .dismissViewControllerAnimated(true, completion: nil)
imageViewRef.image=info[UIImagePickerControllerOriginalImage] as? UIImage
}
func imagePickerControllerDidCancel(picker: UIImagePickerController){
print("picker cancel.")
}

Answer 4

To display a selected image using UIImagePickerController use the following code:
// Add these protocols into your class declaration
UIImagePickerControllerDelegate, UINavigationControllerDelegate
// Set the delegate
#IBAction func presentViewImagePicker(sender: AnyObject) {
let imagePicker = UIImagePickerController()
imagePicker.delegate = self
presentViewController(imagePicker, animated: true, completion: nil)
}
// Use these two methods from UIImagePickerControllerDelegate
Check the documentation https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIImagePickerControllerDelegate_Protocol/index.html
func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
if let pickedImage = info[UIImagePickerControllerOriginalImage] as? UIImage {
imageRetrieved.contentMode = .ScaleAspectFill
imageRetrieved.image = pickedImage
}
self.dismissViewControllerAnimated(true, completion: nil)
}
func imagePickerControllerDidCancel(picker: UIImagePickerController) {
self.dismissViewControllerAnimated(true, completion: nil)
}
Hope it helps

Answer 5

The delegate method you are using is deprecated. You should replace it with this:
- (void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary<NSString *, id> *)info
Use this link to learn which keys you need to use to retrieve the image from the dictionary.