IOS Swift imagePickerController未调用
如果触摸按钮打印a和b并弹出照片库 但选择Photo not callIOS Swift imagePickerController未调用,ios,swift,uiimagepickercontroller,Ios,Swift,Uiimagepickercontroller,如果触摸按钮打印a和b并弹出照片库 但选择Photo not callimagePickerController 选择照片后不执行任何操作 如何在swift 4中使用imagepicker?从委托方法中删除@objc,并且委托方法是这样的,因此用以下方法替换您的函数: class MyPage: UIViewController,UIImagePickerControllerDelegate,UINavigationControllerDelegate { var imagePicke
imagePickerController
选择照片后不执行任何操作
如何在swift 4中使用imagepicker?从
委托
方法中删除@objc
,并且委托
方法是这样的,因此用以下方法替换您的函数:
class MyPage: UIViewController,UIImagePickerControllerDelegate,UINavigationControllerDelegate {
var imagePicker = UIImagePickerController()
@IBOutlet weak var selectImage: UIButton!
override func viewDidLoad() {
imagePicker.sourceType = .photoLibrary
imagePicker.delegate = self
}
@IBAction func selectImage(_ sender: Any) {
print("a")
if UIImagePickerController.isSourceTypeAvailable(.photoLibrary){
print("b")
imagePicker.allowsEditing = false
imagePicker.mediaTypes = UIImagePickerController.availableMediaTypes(for: .photoLibrary)!
self.present(imagePicker, animated: true,completion: nil)
}
@objc func imagePickerController(picker: UIImagePickerController!, didFinishPickingImage image: UIImage!, editingInfo: NSDictionary!){
self.dismiss(animated: true, completion: { () -> Void in
print("dismiss")
})
print(image)
selectImage.setImage(image, for: .normal)
}
}
并使用以下方法获取图像:
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any])
类ViewController:UIViewController、UIImagePickerControllerDelegate、UINavigationControllerDelegate{
import UIKit
}只有代码的答案是不受欢迎的。请在您的答案中说明问题所在以及答案如何解决问题。
import UIKit
let imageView = UIImageView()
let imagepicker = UIImagePickerController()
override func viewDidLoad() {
super.viewDidLoad()
self.imagepicker.delegate = self
imageView.frame = CGRect(x: 40, y: 150, width: 100, height: 100)
self.view.addSubview(imageView)
}
@IBAction func uploadImage(_ sender : UIButton) {
imagepicker.cameraDevice = .rear
imagepicker.cameraCaptureMode = .photo
imagepicker.sourceType = .photoLibrary
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
guard let image = info[UIImagePickerControllerOriginalImage] as? UIImage else {
return
}
imageView.image = image
print(image)
}
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
self.dismiss(animated: true, completion: nil)
}