didFinishPickingMediaWithInfo未调用
didFinishPickingMediaWithInfo未调用
提问于 2015-03-22 00:14:47
我有一个UITableViewCell按钮来拍摄一个图像并把它放回单元格中。当我调用UIImagePickerController并获取图像时，它不会调用以下委托：
func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [NSObject : AnyObject], sender:AnyObject)这是我的takePhotoFunction in UITableViewController
@IBAction func takePhoto(sender: AnyObject) {
let imagePickerController = UIImagePickerController()
imagePickerController.delegate = self
imagePickerController.allowsEditing = true
let actionSheet = UIAlertController(title: "Choose image souruce", message: nil, preferredStyle: UIAlertControllerStyle.ActionSheet)
actionSheet.addAction(UIAlertAction(title: "Take Image", style: UIAlertActionStyle.Default, handler: { (alert:UIAlertAction!) -> Void in
imagePickerController.sourceType = UIImagePickerControllerSourceType.Camera
self.presentViewController(imagePickerController, animated: true, completion: nil)
}))
actionSheet.addAction(UIAlertAction(title: "Photo Library", style: UIAlertActionStyle.Default, handler: { (alert:UIAlertAction!) -> Void in
imagePickerController.sourceType = UIImagePickerControllerSourceType.PhotoLibrary
self.presentViewController(imagePickerController, animated: true, completion: nil)
}))
actionSheet.addAction(UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel, handler: nil))
self.presentViewController(actionSheet, animated: true, completion: nil)}回答 12
Stack Overflow用户
回答已采纳
发布于 2016-09-25 13:45:33
在Swift 3中，这个委托方法现在称为：
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any])不同之处是：
- 在选择器之前有一个下划线_
- 最后的信息类型从String : AnyObject改为String : Any
我也有同样的问题，当我做这些改变时，它起了作用。
Stack Overflow用户
发布于 2017-03-08 06:43:39
UIImagePickerControllerDelegate,UINavigationControllerDelegate 1.别忘了添加
viewDidLoad() 2.在中添加 picker.delegate = self
3.添加委托方法
public func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
let chosenImage = info[UIImagePickerControllerOriginalImage] as! UIImage
userImageView.contentMode = .scaleAspectFit
userImageView.image = chosenImage
dismiss(animated:true, completion: nil)
}
public func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {self.dismiss(animated: true, completion: nil)
}希望它有帮助:)
Stack Overflow用户
发布于 2019-02-01 07:26:10
为“迅速”4.2
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
if let chosenImage = info[.originalImage] as? UIImage{
//use image
}
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/29189548
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