When you pick a video on an iOS device you can look through the video by dragging a playhead at the top of the screen. Is it possible to get this current time later when the image is chosen? Like in my imagePickerController function below where I get the video URL.
func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [NSObject : AnyObject]) {
self.dismissViewControllerAnimated(true, completion: nil)
let info2 = info as NSDictionary
urlVideo = info2.objectForKey(UIImagePickerControllerMediaURL) as! NSURL
}
You cannot achieve this using the UIImagePickerController as it doesn't offer support for that. You will have to use a custom controller or create your own.
Related
I am working with images for the first time and I have been able to select an image and display it on the page. My question is how can I get the name of the image selected ? I been searching around but have not been able to find it . This code below fires every time you select an image
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any])
{
photoImageView.image = info[UIImagePickerControllerOriginalImage] as? UIImage
self.dismiss(animated: false, completion: nil)
let FileName = " Image Name of selected file"
}
where the photoImageView is
var photoImageView = UIImageView(frame: CGRect(x: 82,y: 300,width: 100,height: 100))
a small ImageView that displays the selected image, I would like to get the FileName now any suggestions would be great
Short answer: You can't. The system doesn't give you the user's name for the file. I remember puzzling about this as well.
As I recall what it gives you is a pointer to an in-memory UIImage object, not even a URL to a system-named file on disk. (But it's been a while since I've used the image picker.)
Using Photos API (PHAsset & PHAssetResource) you can get file name of the image selected using UIImagePickerController. I posted the solution in this question.
From iOS 11.0 onwards they introduced a new key into info dictionary to get PHAsset of picked image , you can try this:
func imagePickerController(_ picker: UIImagePickerController,didFinishPickingMediaWithInfo info: [String : Any]) {
if let photoAsset = info[UIImagePickerControllerPHAsset] as? PHAsset {
if let fileName = photoAsset.value(forKey: "filename") ?? "nonamefound"}
In Android there is a way to take the selected image path and display it in our app. Is there any way to do the same thing in iOS too? To select the image from the picker view, take the image path and display in my app?
Delegate callback didFinishPickingMediaWithInfo. Simply obtain the path from the info dictionary's UIImagePickerControllerReferenceURL.
more check apple documentation
func imagePickerController(picker: UIImagePickerController!, didFinishPickingImage image: UIImage!, editingInfo: NSDictionary!)
{
self.displayImg.image = image
let imgURL: NSURL = editingInfo.valueForKey("UIImagePickerControllerReferenceURL") as! NSURL
print(imgURL.absoluteString)
self.dismissViewControllerAnimated(true, completion: nil)
}
UIImagePickerControllerOriginalImage returns only the image's data, with no reference to its local storage.
func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [NSObject : AnyObject]) {
if let localUrl = (info[UIImagePickerControllerMediaURL] ?? info[UIImagePickerControllerReferenceURL]) as? NSURL {
print (localUrl)
//if you want to get the image name
let imageName = localUrl.path!.lastPathComponent
}
}
for more help see this link
Can we load images found locally on the device with SDWebimage using URL option? if yes then Im trying to use SDWebimage to display images, below is my code and i am unable to load image in the imageview. its still blank. kindly help me to understand what im doing wrong?
func addImage(sender: AnyObject){
if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.SavedPhotosAlbum){
picController.sourceType = UIImagePickerControllerSourceType.SavedPhotosAlbum;
picController.allowsEditing = true
self.presentViewController(picController, animated: true, completion: nil)
}
}
func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
let url = info[UIImagePickerControllerReferenceURL] as! NSURL
titleImageView.sd_setImageWithURL(url)
self.dismissViewControllerAnimated(true, completion: nil)
}
Note that the UIImagePickerController delegate
imagePickerController: didFinishPickingMediaWithInfo
will have the info as described in documentation-
A dictionary containing the original image and the edited image, if an
image was picked; or a filesystem URL for the movie, if a movie was
picked. The dictionary also contains any relevant editing information.
The keys for this dictionary are listed in Editing Information Keys.
so if it is image that you are looking at, it will be right there in the dictionary itself.
You can get original image directly-
let image = info[UIImagePickerControllerOriginalImage]
if let image = image {
//Set this image to your image view directly
titleImageView.image = image
}
Here info as a NSDictonary and get that key is UIImagePickerControllerOriginalImage
see this code :
func imagePickerController(picker: UIImagePickerController!, didFinishPickingMediaWithInfo info:NSDictionary!) {
var tempImage:UIImage = info[UIImagePickerControllerOriginalImage] as UIImage
imagePreview.image = tempImage
self.dismissModalViewControllerAnimated(true)
}
I have a UIImagePickerController with the option to select from library.
When the accessLibrary button is called, it prompts another UIImagePickerController that has source type .PhotoLibrary.
func accessLibrary(sender: UIButton!) {
NSLog("access library")
choseFromLibrary = true
self.libraryPicker = UIImagePickerController()
self.libraryPicker!.allowsEditing = false
self.libraryPicker!.sourceType = .PhotoLibrary
self.presentViewController(self.libraryPicker!, animated: true, completion: nil)
}
This all works well, but when the user does select a photo, I want to pass that image to a view and then show that view on the screen.
func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
let metadata = info[UIImagePickerControllerMediaMetadata] as? NSDictionary
var image = info[UIImagePickerControllerOriginalImage] as? UIImage
if (image != nil) {
if (choseFromLibrary) {
let cnfrmImgView = ConfirmImageView.init(image: image!)
self.view.addSubview(cnfrmImgView)
}
else {
if (frontFacing) {
image! = UIImage(CGImage: image!.CGImage!, scale: 1.0, orientation: .LeftMirrored)
}
let cnfrmImgView = ConfirmImageView.init(image: image!)
self.view.addSubview(cnfrmImgView)
}
}
}
The above function works if the image is taken using the camera, but not using the library.
When a user picks a photo from the library, the library picker controller just dismisses itself and the view is not display.
I ran an NSLog("here") to check if the didFinishPickingImageWithInfo function is called when choosing from the library and in fact it is not.
didFinishPickingImageWithInfo is a delegate message (UIImagePickerControllerDelegate). The problem, however, is that you have not given your image picker any delegate! Thus, it has no one to send delegate messages to.
if you want to implement a Instagram like image picker than try this
Image Picker like Instagram
The delegate function is updated in new swift versions from 4 to upwards.
Use this function instead
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) { }
I am using UIImagePickerController to allow the user to take a picture. I want to allow him/her to edit it afterwards but, whatever I do, I get nothing.
Here is my code (I am using Xamarin):
UIImagePickerController imagePicker = new UIImagePickerController ();
// set our source to the camera
imagePicker.SourceType = UIImagePickerControllerSourceType.Camera;
// set what media types
//imagePicker.MediaTypes = UIImagePickerController.AvailableMediaTypes (UIImagePickerControllerSourceType.Camera);
// show the camera controls
imagePicker.ModalPresentationStyle = UIModalPresentationStyle.CurrentContext;
imagePicker.ShowsCameraControls = true;
imagePicker.AllowsEditing = true;
imagePicker.SetEditing (true,true);
imagePicker.PreferredContentSize = new SizeF(900,600);
imagePicker.CameraCaptureMode = UIImagePickerControllerCameraCaptureMode.Photo;
imagePicker.Title="taste.eat. image";
// attach the delegate
imagePicker.Delegate = new ImagePickerDelegate();
// show the picker
NavigationController.PresentViewController(imagePicker, true,null);
Am I missing something?
EDIT:
I have followed the tutorial and I am getting to the screen with the rectangle, but if i pan or zoom it just snaps back to the center once I lift my finger. Is it possible to get to this screen from the photos application?
When using UIImagePickerController's delegate
method - imagePickerController:didFinishPickingMediaWithInfo:, we get the image using
UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];
This code will always return the original image, even if editing is ON.
Try using
UIImage *image = [info objectForKey:UIImagePickerControllerEditedImage];
This will return the edited image if editing is ON.
Hope this helps.
The AllowsEditing property simply allows the user to crop to a square if picking an image and trim the video if picking a video.
Any other functionality needs to be implemented with custom UI and code.
See this question:iPhone SDK - How to customize the crop rect in UIImagePickerController with allowsEditing on?
What you are showing in the screenshot is not part of UIImagePickerController, unfortunately
SWIFT 3
I was having a hard time returning the cropped image (simple mistake on my end). Instead of using UIImagePickerControllerOriginalImage, you need UIImagePickerControllerEditedImage. See below:
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
// The info dictionary contains multiple representations of the image, and this uses the cropped image.
let selectedImage = info[UIImagePickerControllerEditedImage] as! UIImage
// Set yourImageView to display the selected image.
yourImage.image = selectedImage
// Dismiss the picker.
dismiss(animated: true, completion: nil)
}
SWIFT 4+
There have been some changes after Swift 4. UIImagePickerControllerEditedImage changed to UIImagePickerController.InfoKey.editedImage.
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
let selectedImage = info[UIImagePickerController.InfoKey.editedImage] as! UIImage
imageView.image = selectedImage
dismiss(animated: true, completion: nil)
}
It will be work like this way.
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
let selectedImage = info[UIImagePickerControllerEditedImage] as! UIImage
userPhoto.image = selectedImage
dismiss(animated: true, completion: nil)
}
There is no way to enable filters by just changing property like allowsEditing = YES. It will only display a cropping tool. As per your screenshot it's look like you have integrated some buggy open source library and without looking at the source code it would be difficult to fix your center cropping bug.
Better to post some concrete detail about your implementation or switch to standard open source library.