I'm trying to implement an ImagePicker on my ViewController, but turns out it presents a blank ImagePicker Controller and UIImagePickerController extension discovery failed with error: (null) message on the console.
I have no idea what I'm doing wrong, and I found no information on the matter. One thing I noticed, though, is that the PickerView takes a little bit too long to be presented.
The code related to the ImagePicker is the following:
private let imagePicker = UIImagePickerController()
private func setupImagePicker() {
imagePicker.sourceType = .photoLibrary
imagePicker.allowsEditing = false
imagePicker.delegate = self
imagePicker.mediaTypes = ["public.image"]
}
#objc private func launchImagePicker() {
let photos = PHPhotoLibrary.authorizationStatus()
if photos == .notDetermined {
PHPhotoLibrary.requestAuthorization({ [weak self] status in
DispatchQueue.main.async {
if status == .authorized, let picker = self?.imagePicker {
self?.present(picker, animated: true, completion: nil)
} else {
self?.present(URealtorUtils.getAlert(message: "You have to authorize photo library access in order to upload a photo"), animated: true, completion: nil)
}
}
})
} else if photos == .authorized {
present(imagePicker, animated: true, completion: nil)
}
}
extension MyController: UIImagePickerControllerDelegate, UINavigationControllerDelegate {
func imagePickerController(_ picker: UIImagePickerController,
didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey: Any]) {
if let image = info[UIImagePickerController.InfoKey.originalImage] as? UIImage {
self.viewModel.setPropertyImage(image)
}
dismiss(animated: true, completion: nil)
}
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
dismiss(animated: true, completion: nil)
}
}
This is a screenshot of what I get when the PickerView is presented:
I checked the details, and there are no issues in your implementation.
I also checked the apple's official sample here.
https://developer.apple.com/documentation/uikit/uiimagepickercontroller/customizing_an_image_picker_controller
Same result!
Finally, this is an issue related to iOS Simulators(version 11.3.1).
FYI, I found iPhone 11 Pro Max didn't work in some previous versions, but iPhone 8 and some others worked.
I just want you guys not wasting time on this. Move ahead.
Thanks.
I'm simply trying to get it so that when you press a button, you display the user's music library, and then you can select a song. I've found that the way to do this is through MPMediaPickerController but I've been struggling to get it to work. This is what my program looks like so far:
import MediaPlayer
import UIKit
class ViewController: UIViewController, MPMediaPickerControllerDelegate {
var mediaPicker: MPMediaPickerController?
override func viewDidLoad() {
super.viewDidLoad()
}
#IBAction func showSongs(_ sender: Any) {
displayMediaPicker()
}
func displayMediaPicker() {
mediaPicker = MPMediaPickerController(mediaTypes: .music)
if let picker = mediaPicker {
picker.delegate = self
picker.allowsPickingMultipleItems = false
picker.showsCloudItems = false
picker.prompt = "Please Pick a Song"
view.addSubview(picker.view)
}
}
}
I know that there should be a property [self presentViewController:picker animated: true completion:nil] after view.addSubview(picker.view), but when I type it I have the options presentingViewController & presentedViewContoller, but no presentViewController
Any help would be much appreciated
The function presentViewController: animated: completion: function was renamed in Swift 3 so now it looks like this:
present(viewControllerToPresent: UIViewController, animated: Bool, completion: (() -> Void)?)
So, in your case you'd end up with a presentPicker function looking something like this (notice the last line):
func presentPicker() {
mediaPicker = MPMediaPickerController(mediaTypes: .music)
if let picker = mediaPicker {
picker.delegate = self
picker.allowsPickingMultipleItems = false
picker.showsCloudItems = false
picker.prompt = "Please Pick a Song"
present(picker, animated: false, completion: nil)
}
}
Hope that helps you.
Swift 5, Swift 4 Very simple solution
//MARK:- add it in your info.plist file
<key>NSAppleMusicUsageDescription</key>
<string>$(app Name) uses music</string>
//MARK:- Import in your file
import MediaPlayer
//MARK:- Import as your Delegates
MPMediaPickerControllerDelegate
//MARK:- Just call this function
func openAudio()
{
let audiopicker = MPMediaPickerController(mediaTypes: .anyAudio)
audiopicker.prompt = "Audio"
audiopicker.delegate = self
audiopicker.allowsPickingMultipleItems = false
self.present(audiopicker, animated: true, completion: nil)
}
I am using iOS 9 and Swift 2.2
I have implemented iOS inbuilt CNContactPickerViewController using CNContactPickerDelegate to get the contact numbers,
In the CNContactPickerViewController Screen, when I click on search field on top and search for a name, I need to add that name to my selection but nothing happens after tapping the contact.
I searched everywhere and dint find any solution to this
Do I need to add anything to my code or is it a iOS 9 bug
#IBAction func AddBtnKlkFnc(sender: AnyObject)
{
let contactPicker = CNContactPickerViewController()
contactPicker.delegate = self
contactPicker.displayedPropertyKeys =
[CNContactPhoneNumbersKey]
self.presentViewController(contactPicker, animated: true, completion: nil)
}
func contactPicker(picker: CNContactPickerViewController, didSelectContacts ContctAryVar: [CNContact])
{
for ContctVar in ContctAryVar
{
let ContctDtlVar = ContctDtlCls()
ContctDtlVar.ManNamVar = CNContactFormatter.stringFromContact(ContctVar, style: .FullName)!
for ContctNumVar: CNLabeledValue in ContctVar.phoneNumbers
{
var MobNumVar = ((ContctNumVar.value as! CNPhoneNumber).valueForKey("digits") as? String)!
if(MobNumVar.Len() > 10)
{
MobNumVar = MobNumVar.GetLstSubSrgFnc(10)
}
ContctDtlVar.MobNumVar = MobNumVar
ContctDtlAryVar.append(ContctDtlVar)
}
}
}
The search results seem to be working in single selection mode only, so make sure you implement
func contactPicker(CNContactPickerViewController, didSelect: CNContact)
only, but not
func contactPicker(CNContactPickerViewController, didSelect: [CNContact])
If you implement both, the version wich takes only one CNContact as argument is ignored and the multi selection mode is used instead.
Use this updated code and
#IBAction func AddBtnKlkFnc(sender: AnyObject)
{
let contactPicker = CNContactPickerViewController()
contactPicker.delegate = self
contactPicker.displayedPropertyKeys =
[CNContactPhoneNumbersKey]
self.presentViewController(contactPicker, animated: true, completion: nil)
}
func contactPicker(picker: CNContactPickerViewController, didSelectContacts ContctAryVar: [CNContact])
{
for ContctVar in ContctAryVar
{
let ContctDtlVar = ContctDtlCls()
ContctDtlVar.ManNamVar = CNContactFormatter.stringFromContact(ContctVar, style: .FullName)!
for ContctNumVar: CNLabeledValue in ContctVar.phoneNumbers
{
var MobNumVar = ((ContctNumVar.value as! CNPhoneNumber).valueForKey("digits") as? String)!
if(MobNumVar.Len() > 10)
{
MobNumVar = MobNumVar.GetLstSubSrgFnc(10)
}
ContctDtlVar.MobNumVar = MobNumVar
ContctDtlAryVar.append(ContctDtlVar)
}
}
delegate.didFetchContacts([contact])
navigationController?.popViewControllerAnimated(true)
}
Here is a swift 4 version
#IBAction func addPhoneContact(_ sender: UIButton) {
let contactPicker = CNContactPickerViewController()
contactPicker.delegate = self
contactPicker.displayedPropertyKeys =
[CNContactPhoneNumbersKey]
self.present(contactPicker, animated: true, completion: nil)
}
extension ViewController: CNContactPickerDelegate {
func contactPicker(_ picker: CNContactPickerViewController, didSelect contact: CNContact) {
picker.dismiss(animated: true, completion: nil)
let name = CNContactFormatter.string(from: contact, style: .fullName)
for number in contact.phoneNumbers {
let mobile = number.value.value(forKey: "digits") as? String
if (mobile?.count)! > 7 {
// your code goes here
}
}
}
}
Multi selection and search are mutually exclusive. If you want search to be working you have to go with single selection only and implement only single selection delegate method.
I am trying to select video from PhotoLibrary using following code
imageController.mediaTypes = [kUTTypeMovie: NSString]
After selecting video, when it is compressing, I am getting array out of boundary issue.
I searched online and found following line. I am unable to convert it into Swift version (link)
imageController.mediaTypes = [[NSArray alloc] initWithObjects:(NSString *)kUTTypeMovie, nil]
Please let us know the Swift version for above line. It is very useful if anyone can provide Swift version of this.
Question2:
I want to show selected video in app and need to play when it is tapped. Can we do it without external plugins and using built in libraries?
Based on Swift 2.2
Suppose you have a imagePickerController and when you want to select both images and videos:
let imagePickerController = UIImagePickerController()
var videoURL: NSURL?
#IBAction func selectImageFromPhotoLibrary(sender: UIBarButtonItem) {
imagePickerController.sourceType = .PhotoLibrary
imagePickerController.delegate = self
imagePickerController.mediaTypes = ["public.image", "public.movie"]
presentViewController(imagePickerController, animated: true, completion: nil)
}
Then after the video is selected, print out its NSURL.
func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
videoURL = info["UIImagePickerControllerReferenceURL"] as? NSURL
print(videoURL)
imagePickerController.dismissViewControllerAnimated(true, completion: nil)
}
For question 2:
Yes, you can do it through AVPlayer, you need import AVKit and AVFoundation, and you code may look like this:
if let videoURL = videoURL{
let player = AVPlayer(URL: videoURL)
let playerViewController = AVPlayerViewController()
playerViewController.player = player
presentViewController(playerViewController, animated: true) {
playerViewController.player!.play()
}
}
I made a demo here you can refer, maybe not 100% what you want.
#IBOutlet weak var imgView: UIImageView!
var imagePickerController = UIImagePickerController()
var videoURL : NSURL?
#IBAction func btnSelectVideo_Action(_ sender: Any) {
imagePickerController.sourceType = .savedPhotosAlbum
imagePickerController.delegate = self
imagePickerController.mediaTypes = [kUTTypeMovie as String]
present(imagePickerController, animated: true, completion: nil)
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
videoURL = info[UIImagePickerControllerMediaURL]as? NSURL
print(videoURL!)
do {
let asset = AVURLAsset(url: videoURL as! URL , options: nil)
let imgGenerator = AVAssetImageGenerator(asset: asset)
imgGenerator.appliesPreferredTrackTransform = true
let cgImage = try imgGenerator.copyCGImage(at: CMTimeMake(0, 1), actualTime: nil)
let thumbnail = UIImage(cgImage: cgImage)
imgView.image = thumbnail
} catch let error {
print("*** Error generating thumbnail: \(error.localizedDescription)")
}
self.dismiss(animated: true, completion: nil)
}
For question 2:
let player = AVPlayer(url: videoURL)
let playerController = AVPlayerViewController()
playerController.player = player
self.present(playerController, animated: true) {
player.play()
}
Swift 5+ solution:
func openVideoGallery() {
picker = UIImagePickerController()
picker.delegate = self
picker.sourceType = .savedPhotosAlbum
picker.mediaTypes = ["public.movie"]
picker.allowsEditing = false
present(picker, animated: true, completion: nil)
}
Swift 3
import MobileCoreServices
var imagePickerController = UIImagePickerController()
var videoURL: URL?
private func openImgPicker() {
imagePickerController.sourceType = .savedPhotosAlbum
imagePickerController.delegate = self
imagePickerController.mediaTypes = ["public.movie"]
present(imagePickerController, animated: true, completion: nil)
}
extension YourViewController: UIImagePickerControllerDelegate, UINavigationControllerDelegate {
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
videoURL = info[UIImagePickerControllerMediaURL] as? URL
print("videoURL:\(String(describing: videoURL))")
self.dismiss(animated: true, completion: nil)
}
}
func openCamera() {
if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.Camera) {
println("captureVideoPressed and camera available.")
var imagePicker = UIImagePickerController()
imagePicker.delegate = self
imagePicker.sourceType = .Camera
imagePicker.mediaTypes = [kUTTypeMovie!]
imagePicker.allowsEditing = false
imagePicker.showsCameraControls = true
self.presentViewController(imagePicker, animated: true, completion: nil)
} else {
println("Camera not available.")
}
}
func imagePickerController( didFinishPickingMediaWithInfo info:NSDictionary!) {
videoUrl = info[UIImagePickerControllerMediaURL] as! NSURL!
let pathString = videoUrl.relativePath
self.dismissViewControllerAnimated(true, completion: nil)
}
Swift 4.0
Your class adopts the UIImagePickerControllerDelegate protocol
class classname: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate
After that you need to create
let imagePickerController = UIImagePickerController()
Add this in your button's action:-
imagePickerController.sourceType = .photoLibrary
imagePickerController.delegate = self
imagePickerController.mediaTypes = ["public.image", "public.movie"]
present(imagePickerController, animated: true, completion: nil)
Delegate method
func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
let videoURL = info["UIImagePickerControllerReferenceURL"] as? NSURL
print(videoURL!)
imagePickerController.dismiss(animated: true, completion: nil)
}
Select a Video from Gallery using Swift 4
// Put this code where you want to pick the video from gallery
Let imagePickerController = UIImagePickerController ()
imagePickerController.sourceType = .photoLibrary
imagePickerController.delegate = self
imagePickerController.mediaTypes = ["public.movie"]
present(imagePickerController, animated: true, completion: nil)
// UIImagePickerController Delegate Method
func imagePickerController (_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String: Any])
{
let videoURL = info[UIImagePickerControllerMediaURL] as? NSURL
print(videoURL!)
self.dismiss(animated: true, completion: nil)
}
try this pod that i've made :
https://github.com/jhonyourangel/ImagePickerWhatsApp
I was searching for a similar Image and Video Picker for a project and i wasn't able to find one that was able to :
1. Take picture
2. Get a Picture from the library
3. Register a Video
4. Get a video from the library
While i was looking i hopen whatsup of facebook or mabe google have a pod for this kind of needs, i realy liked the whatsapp picker, so i created this one similer to the one in whatsapp.
Prerequisites
In order to use ImageVideoPicker you need cocoapods and an xCode project already created
Installing
to install cocoapods is should be enough just to run sudo gem install cocoapods in the terminal
if this doen't work go to cocoapods
Then navigate the terminal to your project folder, where the file extension .xcodeproj is located and run pod init
this will create a file called Podfile
Open the file in a editor ( sublimeText, xCode, atom, vim ... etc ) and add the line bellow after use_frameworks!
pod 'ImagePickerWhatsApp'
or
pod 'ImagePickerWhatsApp', :path => '/Users/aiu/Documents/cocoapods/ImagePickerWhatsApp'
then just run pod install in the terminal and wait to finish instaling the lib
How to use it
add import ImagePickerWhatsApp to your viewcontroller class
then you can call the picker by calling :
let mp = ImageVideoPicker.makeVCFromStoryboard()
self.present(mp, animated: true, completion: nil)
Delegate
to implement the delegate add mp.delegate = self and the extent the class of you view controller
aso you need to import the iOS Photos framework import Photos
extension ViewController: ImageVideoPickerDelegate {
func onCancel() {
print("no picture selected")
}
func onDoneSelection(assets: [PHAsset]) {
print("selected \(assets.count) assets")
}
}
the func onDoneSelection returns an array of assets that contain the info of where the asset is located : on the device, iTunes library or iCloud.
if you just need to display the images you can use the this code in a collection view or something similar just implement this peace of code
var representedAssetIdentifier: String!
func getImageFrom(asset: Phasset) {
representedAssetIdentifier = asset?.localIdentifier
let imageManager = PHCachingImageManager()
imageManager.requestImage(for: asset!, targetSize: self.frame.size, contentMode: .default, options: nil) { (image, _) in
if(self.representedAssetIdentifier == self.asset?.localIdentifier &&
image != nil) {
self.imageView.image = image
}
}
}
this will show just the thumbnail, but is awesome because is also showing the thumbnail for live photos, and videos
Images and Videos as Data
The lib is intended to be used for sending images or videos over the network, and not to do fancy image or video editing. But this doesn't mea you can't. You can do just about anything since it returns an array of assets, but is you job to implement what you need.
in order to get the data from the asset ImageVideoPicker has one method that will return an completition handler with the data.
ImageVideoPicker.getDataFrom(asset: asset) { (data) in
if data == nil {
print(data as Any, asset.mediaType, asset.localIdentifier)
} else {
print(data!.count as Any, asset.mediaType, asset.localIdentifier)
}
}
that will be all
have fun
func startMediaBrowserFromViewController(viewController: UIViewController!, usingDelegate delegate : protocol<UINavigationControllerDelegate, UIImagePickerControllerDelegate>!) -> Bool {
if UIImagePickerController.isSourceTypeAvailable(.SavedPhotosAlbum) == false {
return false
}
let mediaUI = UIImagePickerController()
mediaUI.sourceType = .SavedPhotosAlbum
mediaUI.mediaTypes = [kUTTypeMovie as String]
mediaUI.allowsEditing = true
mediaUI.delegate = delegate
presentViewController(mediaUI, animated: true, completion: nil)
return true
}
Updated for the current version of Swift:
// Check if the asset is of video media type.
guard (asset.mediaType == PHAssetMediaType.video) else {
print("Not a valid video media type")
return
}
// Obtain the URL of the video.
PHCachingImageManager().requestAVAsset(forVideo: asset, options: nil, resultHandler: {(asset: AVAsset?, audioMix: AVAudioMix?, info: [AnyHashable : Any]?) in
let asset = asset as! AVURLAsset
print("asset.url: ", asset.url) // Here is video URL
// Play the video.
DispatchQueue.main.async(execute: {
let player = AVPlayer(url: asset.url)
let playerViewController = AVPlayerViewController()
playerViewController.player = player
self.present(playerViewController, animated: true) {
playerViewController.player!.play()
}
})
})
if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.PhotoLibrary) {
println("Camera Available")
var imagePicker = UIImagePickerController()
imagePicker.delegate = self
imagePicker.sourceType = UIImagePickerControllerSourceType.PhotoLibrary
imagePicker.allowsEditing = false
self.presentViewController(imagePicker, animated: true, completion: nil)
}
Delegate method
func imagePickerController(picker: UIImagePickerController!, didFinishPickingImage image: UIImage!, editingInfo: NSDictionary!) {
self.dismissViewControllerAnimated(true, completion: nil)
imageView.image = image
}
When I choose to print out MPMediaItemCollection in my app I simply receive codes such as 0x17eb5d30. Is anybody aware of how to get data from these random letters and numbers. I am looking at hopefully retrieving the title of the song as well as the length of the song in seconds.
My code is here
#IBAction func pickSong(sender: AnyObject) {
self.presentPicker(sender)
func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
var DestView: playMusicViewController = segue.destinationViewController as! playMusicViewController
DestView.selectedSong = MPMediaItemCollection()
}
}
func presentPicker (sender:AnyObject) {
let mediaPicker = MPMediaPickerController(mediaTypes: .Music)
mediaPicker.delegate = self
mediaPicker.allowsPickingMultipleItems = false
presentViewController(mediaPicker, animated: true, completion: {})
}
also the extension view controller
extension ViewController : MPMediaPickerControllerDelegate {
// must implement these, as there is no automatic dismissal
func mediaPicker(mediaPicker: MPMediaPickerController!, didPickMediaItems mediaItemCollection: MPMediaItemCollection!) {
let player = MPMusicPlayerController.applicationMusicPlayer()
player.setQueueWithItemCollection(mediaItemCollection)
player.play()
println(mediaItemCollection)
self.dismissViewControllerAnimated(true, completion: nil)
}
func mediaPickerDidCancel(mediaPicker: MPMediaPickerController!) {
self.dismissViewControllerAnimated(true, completion: nil)
}
}
The number and letter you are seem is a pointer to an address in memory (normally not very useful for us) if you want to access details about the music you need to access the properties of the objects you received back for the picker. The example below show how to retrieve the title of the music selected:
func mediaPicker(mediaPicker: MPMediaPickerController!, didPickMediaItems mediaItemCollection: MPMediaItemCollection!) {
let player = MPMusicPlayerController.applicationMusicPlayer()
player.setQueueWithItemCollection(mediaItemCollection)
player.play()
let item = mediaItemCollection.representativeItem
let title = item.title
println(title)
self.dismissViewControllerAnimated(true, completion: nil)
}
I hope that help you!