iPhone - UIImagePickerController -> save the image to app folder

Question

I have an iPhone application using a UIImagePickerController. As sourceType I have

• UIImagePickerControllerSourceTypePhotoLibrary

Answer 1

Update knuku's answer for Swift 3.0

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {

    //obtaining saving path
    let fileManager = FileManager.default
    let documentsPath = fileManager.urls(for: .documentDirectory, in: .userDomainMask).first
    let imagePath = documentsPath?.appendingPathComponent("image.jpg")

    // extract image from the picker and save it
    if let pickedImage = info[UIImagePickerControllerOriginalImage] as? UIImage {
        try! UIImageJPEGRepresentation(pickedImage, 0.0)?.write(to: imagePath!)
    }
    self.dismiss(animated: true, completion: nil)        
}

here the image is saved as jpeg but you can also save it as png. the 0.0 parameter stands for compression and it's the lowest quality, if you want to get the best use 1.0.