I am new in swift. I made simple iphone app. Use this link: http://www.oodlestechnologies.com/blogs/Open-Image-Gallery-and-Take-photo-in-Swift and my app worked perfect. I want my app to select cropable image like facebook or telegram.
Like this:
My code:
private func showBottomActionSheet(){
let chooseOptionMenu = UIAlertController(title: nil, message: nil, preferredStyle: .ActionSheet)
let takePhotoAction = UIAlertAction(title: "Take Photo", style: .Default, handler: {
(alert: UIAlertAction!) -> Void in
self.openCamera()
})
let choosePhotoAction = UIAlertAction(title: "Choose Photo", style: .Default, handler: {
(alert: UIAlertAction!) -> Void in
self.openGallary()
})
let findImagesAction = UIAlertAction(title: "Find Images", style: .Default, handler: {
(alert: UIAlertAction!) -> Void in
print("Clicked Find Images")
})
let cancelAction = UIAlertAction(title: "Cancel", style: .Cancel, handler: {
(alert: UIAlertAction!) -> Void in
print("Cancelled")
})
chooseOptionMenu.addAction(takePhotoAction)
chooseOptionMenu.addAction(choosePhotoAction)
chooseOptionMenu.addAction(findImagesAction)
chooseOptionMenu.addAction(cancelAction)
self.presentViewController(chooseOptionMenu, animated: true, completion: nil)
}
private func openGallary()
{
self.picker!.allowsEditing = false
self.picker!.sourceType = UIImagePickerControllerSourceType.PhotoLibrary
presentViewController(picker!, animated: true, completion: nil)
}
private func openCamera()
{
if(UIImagePickerController .isSourceTypeAvailable(UIImagePickerControllerSourceType.Camera)){
self.picker!.allowsEditing = false
self.picker!.sourceType = UIImagePickerControllerSourceType.Camera
self.picker!.cameraCaptureMode = .Photo
presentViewController(self.picker!, animated: true, completion: nil)
}else{
let alert = UIAlertController(title: "Camera Not Found", message: "This device has no Camera", preferredStyle: .Alert)
let ok = UIAlertAction(title: "OK", style:.Default, handler: nil)
alert.addAction(ok)
presentViewController(alert, animated: true, completion: nil)
}
}
func imagePickerControllerDidCancel(picker: UIImagePickerController) {
dismissViewControllerAnimated(true, completion: nil)
}
func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]){
let chosenImage = info[UIImagePickerControllerOriginalImage] as! UIImage
self.choosenPhoto = chosenImage
DefaultUser.setUserImage(chosenImage)
dismissViewControllerAnimated(true, completion: nil)
}
I found objective c code but didn't find code for swift 2.
Plz, advise me. thanks !
Related
I am trying to modulraise my code I am able to create extension for alertController without target
extension UIViewController {
func showAlert(title: String, message: String) {
let alertController = UIAlertController(title: title, message:
message, preferredStyle: .alert)
alertController.addAction(UIAlertAction(title: "OK", style: .default, handler: {_ in
}))
self.present(alertController, animated: true, completion: nil)
}
}
but I am not sure how to create extension which have target and textfield(how to create and call that in viewcontroller)
my code for which i am trying to create extension
let alertController = UIAlertController(title: "enter name", message: nil, preferredStyle: .alert)
let addAction = UIAlertAction(title: "Ok", style: .default) {_ in
guard let name = alertController.textFields?.first?.text else { return }
let newTask = Task(name: name)
self.toDoStore?.add(newTask, at: 0)
let indexPath = IndexPath(row: 0, section: 0)
self.tableView.insertRows(at: [indexPath], with: .automatic)
}
addAction.isEnabled = false
let cancelAction = UIAlertAction(title: CANCEL_ACTION, style: .cancel, handler: nil)
alertController.addTextField { textField in
textField.placeholder = "enter name.."
textField.addTarget(self, action: #selector(self.handleTextChanged), for: .editingChanged)
}
alertController.addAction(addAction);
alertController.addAction(cancelAction);
present(alertController, animated: true, completion: nil)
You could try the below extension that I'm using made a few changes according to your requirements.
extension UIViewController {
func showAlert(_ title: String?,
message: String?,
actions: [String: UIAlertAction.Style] = [:],
handler: ((UIAlertAction) -> Void)? = nil,
textFields: [((UITextField) -> Void)] = []) {
let alert = UIAlertController(title: title, message: message, preferredStyle: .alert)
if actions.isEmpty {
alert.addAction(UIAlertAction(title: "Okay", style: .default))
} else {
for action in actions {
alert.addAction(UIAlertAction(title: action.key, style: action.value, handler: handler))
}
}
for textField in textFields {
alert.addTextField(configurationHandler: textField)
}
present(alert, animated: true)
}
}
A bit of advise you can always check how the parameters that you pass are accepted by the system API and customize your own function in a similar way.
I would like to add the ability to register with the phone number while registering. I wrote a function but it doesn't work. Can you examine the code? What should I do?
func sendCode(_ sender: Any) {
let alert = UIAlertController(title: "Phone number", message: "Is this your phone number? \n \(emailField.text!)", preferredStyle: .alert)
let action = UIAlertAction(title: "Yes", style: .default) { (UIAlertAction) in
PhoneAuthProvider.provider().verifyPhoneNumber(self.emailField.text!, uiDelegate: nil) { (verificationID, error) in
if error != nil {
print("eror: \(String(describing: error?.localizedDescription))")
} else {
let defaults = UserDefaults.standard
defaults.set(verificationID, forKey: "authVID")
let navController = UINavigationController(rootViewController: CodeEntryView())
self.present(navController, animated: true, completion: {
})
}
}
}
let cancel = UIAlertAction(title: "No", style: .cancel, handler: nil)
alert.addAction(action)
alert.addAction(cancel)
self.present(alert, animated: true, completion: nil)
}
My photo app crashes when user selects video. The user can select photo and it works fine, but I'd like to remove the option to take a video. How do I disable video? The relevant chunk of code is below...
#IBAction func choosePhoto(_ sender: UIButton) {
let alertController = UIAlertController(title: "Title", message: "Message", preferredStyle: .actionSheet)
imagePicker = UIImagePickerController()
imagePicker.delegate = self
if (UIImagePickerController.isSourceTypeAvailable(.camera)) {
let cameraAction = UIAlertAction(title: "Use Camera", style: .default) { (action) in
let status = AVCaptureDevice.authorizationStatus(forMediaType: AVMediaTypeVideo)
if (status == .authorized) {
self.displayPicker(type: .camera)
}
if (status == .restricted) {
self.handleRestricted()
}
if (status == .denied) {
self.handleDenied()
}
if (status == .notDetermined) {
AVCaptureDevice.requestAccess(forMediaType: AVMediaTypeVideo, completionHandler: { (granted) in
if (granted) {
self.displayPicker(type: .camera)
}
})
}
}
alertController.addAction(cameraAction)
}
if (UIImagePickerController.isSourceTypeAvailable(.photoLibrary)) {
let photoLibraryAction = UIAlertAction(title: "Use Photo Library", style: .default) { (action) in
let status = PHPhotoLibrary.authorizationStatus()
if (status == .authorized) {
self.displayPicker(type: .photoLibrary)
}
if (status == .restricted) {
self.handleRestricted()
}
if (status == .denied) {
self.handleDenied()
}
if (status == .notDetermined) {
PHPhotoLibrary.requestAuthorization({ (status) in
if (status == PHAuthorizationStatus.authorized) {
self.displayPicker(type: .photoLibrary)
}
})
}
}
alertController.addAction(photoLibraryAction)
}
let cancelAction = UIAlertAction(title: "Cancel", style: .cancel, handler: nil)
alertController.addAction(cancelAction)
present(alertController, animated: true, completion: nil)
}
func handleDenied() {
let alertController = UIAlertController(title: "Camera Access Denied", message: "This app does not have acces to your device's camera. Please update your settings.", preferredStyle: .alert)
let settingsAction = UIAlertAction(title: "Go To Settings", style: .default) { (action) in
DispatchQueue.main.async {
UIApplication.shared.open(NSURL(string: UIApplicationOpenSettingsURLString)! as URL)
}
}
let cancelAction = UIAlertAction(title: "Cancel", style: .cancel, handler: nil)
alertController.popoverPresentationController?.sourceView = self.photoImage
alertController.popoverPresentationController?.sourceRect = self.photoImage.bounds
alertController.addAction(settingsAction)
alertController.addAction(cancelAction)
present(alertController, animated: true, completion: nil)
}
func handleRestricted() {
let alertController = UIAlertController(title: "Camera Access Denied", message: "This device is restricted from accessing the camera at this time", preferredStyle: .alert)
let defaultAction = UIAlertAction(title: "OK", style: .default, handler: nil)
alertController.popoverPresentationController?.sourceView = self.photoImage
alertController.popoverPresentationController?.sourceRect = self.photoImage.bounds
alertController.addAction(defaultAction)
present(alertController, animated: true, completion: nil)
}
func displayPicker(type: UIImagePickerControllerSourceType) {
self.imagePicker.mediaTypes = UIImagePickerController.availableMediaTypes(for: type)!
self.imagePicker.sourceType = type
self.imagePicker.allowsEditing = true
DispatchQueue.main.async {
self.present(self.imagePicker, animated: true, completion: nil)
}
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
let chosenImage = info[UIImagePickerControllerEditedImage] as! UIImage
photoImage.contentMode = .scaleAspectFill
photoImage.image = chosenImage
dismiss(animated: true, completion: nil)
}
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
dismiss(animated: true, completion: nil)
}
Put this line right after imagePicker.delegate = self
imagePicker.mediaTypes = [kUTTypeImage as String]
Remember to add import MobileCoreServices at the beginning of the file.
What you want to do is after you init imagePicker set the following property
imagePicker.mediaTypes = [UIImagePickerController availableMediaTypesForSourceType: UIImagePickerControllerSourceTypeCamera];
https://developer.apple.com/documentation/uikit/uiimagepickercontroller/1619173-mediatypes
So I have this code that will get photos my gallery or use the camera to change the UIImage.
#IBAction func tappedCamera() {
print("tapped camera")
let optionMenu = UIAlertController(title: nil, message: "Choose Option", preferredStyle: .actionSheet)
let cameraAction = UIAlertAction(title: "Camera", style: .default, handler: {
(alert: UIAlertAction!) -> Void in
if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.camera) {
self.picker.sourceType = UIImagePickerControllerSourceType.camera;
self.picker.allowsEditing = true
self.present(self.picker, animated: true, completion: nil)
}
})
let galleryAction = UIAlertAction(title: "Gallery", style: .default, handler: {
(alert: UIAlertAction!) -> Void in
if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.photoLibrary) {
self.picker.sourceType = UIImagePickerControllerSourceType.photoLibrary;
self.picker.allowsEditing = true
self.present(self.picker, animated: true, completion: nil)
}
})
let cancelAction = UIAlertAction(title: "Cancel", style: .default, handler: {
(alert: UIAlertAction!) -> Void in
//do none
})
optionMenu.addAction(cameraAction)
optionMenu.addAction(galleryAction)
optionMenu.addAction(cancelAction)
self.present(optionMenu, animated: true, completion: nil)
}
But I always get this error, whenever I try to capture a photo or select an image from the gallery.
[Generic] Creating an image format with an unknown type is an error
I solved it by fixing my user defaults. Because somewhere along the code I was messing up with the images, converting them to base64 strings, then saving it to user defaults.
How can I create an UIAlertController with a cancel button and three other buttons with an icon? I am supporting iOS 8 upwards.
Each entry should be tinted...
I tried and searched a lot and finally found the answer. Here it is:
**Create the `UIAlertController` with icons:**
The important part is the addition of the icons with action1.setValue(UIImage(named: "Icon1"), forKey: "image")
let optionMenu = UIAlertController(title: nil, message: nil, preferredStyle: .ActionSheet)
let action1 = UIAlertAction(title: "Test 1", style: .Default, handler: {
[unowned self] (alert: UIAlertAction!) -> Void in
print("Action 1")
})
action1.setValue(UIImage(named: "Icon1"), forKey: "image")
let action2 = UIAlertAction(title: "Test 2", style: .Default, handler: {
[unowned self] (alert: UIAlertAction!) -> Void in
print("Action 2")
})
action2.setValue(UIImage(named: "Icon2"), forKey: "image")
let action3 = UIAlertAction(title: "Test 3", style: .Default, handler: {
[unowned self] (alert: UIAlertAction!) -> Void in
print("Action 3")
})
action3.setValue(UIImage(named: "Icon3"), forKey: "image")
let cancelAction = UIAlertAction(title: "Close", style: .Cancel, handler: nil)
optionMenu.addAction(action1)
optionMenu.addAction(action2)
optionMenu.addAction(action3)
optionMenu.addAction(cancelAction)
presentViewController(optionMenu, animated: true, completion: nil)
This is what I got. Ok so far 😀
**Tinting the entries**
Then I tried to tint everything and I added the following line underneath the instantiation of UIAlertController:
optionMenu.view.tintColor = Colors.getColors().primaryTintColor
This looked pretty good with iOS8, but as I tested the same code with iOS9 I was surprised (the localization difference is because of different settings in the simulators):
iOS8
iOS9
**The solution**
I took me quite a while but then I found the solution.
You have to set the tint color after you present the UIAlertController. 😎
This is the final code:
let optionMenu = UIAlertController(title: nil, message: nil, preferredStyle: .ActionSheet)
let action1 = UIAlertAction(title: "Test 1", style: .Default, handler: {
[unowned self] (alert: UIAlertAction!) -> Void in
print("Action 1")
})
action1.setValue(UIImage(named: "Icon1"), forKey: "image")
let action2 = UIAlertAction(title: "Test 2", style: .Default, handler: {
[unowned self] (alert: UIAlertAction!) -> Void in
print("Action 2")
})
action2.setValue(UIImage(named: "Icon2"), forKey: "image")
let action3 = UIAlertAction(title: "Test 3", style: .Default, handler: {
[unowned self] (alert: UIAlertAction!) -> Void in
print("Action 3")
})
action3.setValue(UIImage(named: "Icon3"), forKey: "image")
let cancelAction = UIAlertAction(title: "Close", style: .Cancel, handler: nil)
optionMenu.addAction(action1)
optionMenu.addAction(action2)
optionMenu.addAction(action3)
optionMenu.addAction(cancelAction)
presentViewController(optionMenu, animated: true, completion: nil)
optionMenu.view.tintColor = Colors.getColors().primaryTintColor