Question

enter image description here我正在制作约会应用。因此用户需要在个人资料中更新他们的图像。在个人资料部分，有3个小图像视图。如果他们想要为每个图像视图添加图像，他们应该通过UIimagepicker更新每个图像视图。但我知道我只能在UIImagepikerControllerDelegate协议中只使用一个函数。

我该怎么做？

下面的

是我失败的代码

导入UIKit

class RegisterPicture：UIViewController，UIImagePickerControllerDelegate，UINavigationControllerDelegate {

@IBAction func pick1(sender: AnyObject) {

    let picker1 = UIImagePickerController()

    picker1.sourceType = UIImagePickerControllerSourceType.SavedPhotosAlbum

    picker1.allowsEditing = true

    picker1.delegate = self

    self.presentViewController(picker1, animated: false, completion: nil)
}

@IBAction func pick2(sender: AnyObject) {

    let picker2 = UIImagePickerController()

    picker2.sourceType = UIImagePickerControllerSourceType.SavedPhotosAlbum

    picker2.allowsEditing = true

    picker2.delegate = self

    self.presentViewController(picker2, animated: false, completion: nil)
}

@IBAction func pick3(sender: AnyObject) {

    let picker = UIImagePickerController()

    picker.sourceType = UIImagePickerControllerSourceType.SavedPhotosAlbum

    picker.allowsEditing = true

    picker.delegate = self

    self.presentViewController(picker, animated: false, completion: nil)
}

@IBOutlet var picture1: UIImageView!

@IBOutlet var picture2: UIImageView!

@IBOutlet var picture3: UIImageView!

func imagePickerController(picker1: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {

    picker1.dismissViewControllerAnimated(false, completion : nil)


}

func imagePickerController(picker2: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {

    picker2.dismissViewControllerAnimated(false, completion : nil)
    self.picture2.image = info[UIImagePickerControllerOriginalImage] as? UIImage

}

func imagePickerController(picker3: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {

    picker3.dismissViewControllerAnimated(false, completion : nil)
    self.picture3.image = info[UIImagePickerControllerOriginalImage] as? UIImage

}

func imagePickerControllerDidCancel(picker: UIImagePickerController) {

    picker.dismissViewControllerAnimated(false, completion:nil)

}

func imagePickerControllerDidCancel(picker2: UIImagePickerController) {

    picker2.dismissViewControllerAnimated(false, completion:nil)

}

func imagePickerControllerDidCancel(picker3: UIImagePickerController) {

    picker3.dismissViewControllerAnimated(false, completion:nil)

}

Answer 1

不确定我是否理解了您的需求，但我建议那些UIImageViews可以在集合视图中。

通过这样做，图像选择器的唯一代理将是视图控制器，其中包含图像的集合视图，您只需使用拾取的图像更新选定的单元格

Answer 2

在创建imageView和时，您可以为每个imageView提供标记在这个方法里面

-(void)imagePickerController:(UIImagePickerController )picker  didFinishPickingMediaWithInfo:(NSDictionary )info

在if else条件的帮助下，您可以单独使用每个imageView。

Answer 3

您可以将其创建为不处理已分配操作的新项目 - 或者您可以清除视图中的操作和出口，并根据新代码重新创建。

创建3个UIImageViews，picture1，picture2，picture3。链接代码中的插座。

创建一个包含3个UIBarButtonItems的UIToolbar。将条形按钮项标签设置为1,2,3，对应于picture1，picture2，picture3图像视图。

连接图像视图的出口（图片1,2,3）

将选择器操作连接到所有三个栏按钮项。这些将使用相同的操作，无需重复代码，发件人按钮的标签将检测到差异。

按照代码，它会解释自己。它根据点击的条形按钮决定在图像选择期间哪个UIImageView将是“活动的”，然后委托将使用该图像视图。

如果没有意义，请告诉我们。

import UIKit

class ViewController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {

@IBAction func picker(sender: UIBarButtonItem) {
    imagePicker.allowsEditing = false
    imagePicker.sourceType = .SavedPhotosAlbum

    switch sender.tag {
    case 2:
        self.imageView = picture2
    case 3:
        self.imageView = picture3
    default:
        self.imageView = picture1
    }


    presentViewController(imagePicker, animated: true, completion: nil)
}

@IBOutlet weak var picture1: UIImageView!
@IBOutlet weak var picture2: UIImageView!
@IBOutlet weak var picture3: UIImageView!

var imageView: UIImageView!
let imagePicker = UIImagePickerController()


override func viewDidLoad() {
    super.viewDidLoad()

    self.imagePicker.delegate = self

}

func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
    if let pickedImage = info[UIImagePickerControllerOriginalImage] as? UIImage {
        self.imageView.contentMode = .ScaleAspectFit
        self.imageView.image = pickedImage
    }

    dismissViewControllerAnimated(true, completion: nil)
}

func imagePickerControllerDidCancel(picker: UIImagePickerController) {
    dismissViewControllerAnimated(true, completion: nil)
}
}

编辑：这是我刚刚上传的示例项目： https://github.com/smozgur/Multiple-Image-Picker

如何添加多个图像视图和每个图像视图可以做图像选择器？

3 个答案: