如何在 iOS 中快速使用多个图像选择器

Question

我正在制作约会应用程序。 如您所知，用户需要在约会应用中注册多张图片。

所以我知道了如何在一个视图中使用 1 个图像选择器。

但我不知道如何添加多个图像选择器。

我知道我只能使用一个

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

和

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

所以我找不到多个图像选择器视图的解决方案。

我的失败代码如下。

import 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)
}

@IBOutlet var picture1: UIImageView!

@IBOutlet var picture2: UIImageView!

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

    picker1.dismissViewControllerAnimated(false, completion : nil)
    self.picture1.image = info[UIImagePickerControllerOriginalImage] as? UIImage

}

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

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

}


func imagePickerControllerDidCancel(picker1: UIImagePickerController) {

    picker1.dismissViewControllerAnimated(false, completion:nil)

}

func imagePickerControllerDidCancel(picker2: UIImagePickerController) {

    picker2.dismissViewControllerAnimated(false, completion:nil)

}
}

Answer 1

对于 2020 年搜索此内容的任何人，Apple 在 iOS14 中引入了PHPickerViewController。这是文档：https://developer.apple.com/documentation/photokit/phpickerviewcontroller

以及解释其用法的 WWDC 介绍： https://developer.apple.com/videos/play/wwdc2020/10652/

Answer 2

您不能使用 UIImagePickerController，但可以使用自定义图像选择器。我认为 ELCImagePickerController 是最好的选择，但这里有一些您可以使用的其他库：

目标-C

1. ELCImagePickerController
2. WSAssetPickerController
3. QBImagePickerController
4. ZCImagePickerController
5. CTAssetsPickerController
6. AGImagePickerController
7. UzysAssetsPickerController
8. MWPhotoBrowser
9. TSAssetsPickerController
10. CustomImagePicker
11. InstagramPhotoPicker
12. GMImagePicker
13. DLFPhotosPicker
14. CombinationPickerController
15. 资产选择器
16. BSImagePicker
17. SNImagePicker
18. DoImagePickerController
19. grabKit
20. IQMediaPickerController
21. HySideScrollingImagePicker
22. 多图像选择器
23. TTImagePicker
24. 选择图片
25. ImageSelectAndSave
26. 图像选择器-多选
27. MultiSelectImagePickerController
28. YangMingShan(Yahoo like 图像选择器)
29. DBAttachmentPickerController
30. BRImagePicker
31. GLAssetGridViewController
32. CreolePhotoSelection

斯威夫特

1. LimPicker（类似于 WhatsApp 的图像选择器）
2. RMImagePicker
3. DKImagePickerController
4. BSImagePicker
5. Fusuma（Instagram 之类的图片选择器）
6. YangMingShan(Yahoo like 图像选择器)
7. NohanaImagePicker
8. 图像选择器
9. OpalImagePicker
10. TLPhotoPicker
11. AssetsPickerViewController
12. 警报和选择器/电报选择器

Answer 3

@IBAction func btnTrophy1Action(_ sender: UIButton) {
        //GIVE TAG TO YOUR BUTTON
        self.view.endEditing(true)
        self.senderTag = sender.tag
        pickerOpen(sender: sender)
    }

@IBAction func btnTrophy2Action(_ sender: UIButton) {
        //GIVE TAG TO YOUR BUTTON
        self.view.endEditing(true)
        self.senderTag = sender.tag
        pickerOpen(sender: sender)
    }

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {

        if let image = info[UIImagePickerController.InfoKey.editedImage] as? UIImage {
            //BASED ON THE TAG SAVE IMAGE TO PARTICULAR IMAGE PICKER
            if self.senderTag == 101 {
                //TROPHY 1
                self.imgTrophy1.image = image
                self.isTrophy1Selected = true
            } else if self.senderTag == 102 {
                //TROPHY 2
                self.imgTrophy2.image = image
                self.isTrophy2Selected = true
            } else {
                //TROPHY 3
                self.imgTrophy3.image = image
                self.isTrophy3Selected = true
            }
        }
        picker.dismiss(animated: true, completion: nil)
    }

Answer 4

这是我尝试解决此类问题的解决方案

我使用单个图像选择器，然后使用包含字符串的枚举来确定哪个图像视图获取用户选择的图像。

enum selectableImage: String {
        case image1
        case image2
        case image3
    }

然后在每次调用imagePickerController 时，我都会像这样分配一个变量var imageSelected = selectableImage.image1。 然后最后在imagePickerController，我使用了这样的切换结构：

 func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {

        print("Inside imageController")

        print(info)
        // The info dictionary may contain multiple representations of the image. You want to use the original.

        guard let imagePicked = info[.originalImage] as? UIImage else {
            fatalError("Expected a dictionary containing an image, but was provided the following: \(info)")
        }

        // Set photoImageView to display the selected image.

        switch imageSelected {

        case selectableImage.image1:
             image1.image = imagePicked

        case selectableImage.image2:
             image2.image = imagePicked

        case selectableImage.image3:
            image3.image = imagePicked

        }


        // Dismiss the picker.
        dismiss(animated: true, completion: nil)
    }

希望这会有所帮助。

Answer 5

您不能使用 UIImagePickerController 选择多个图像。您要么必须制作自己的自定义图像选择器，要么可以使用像 one 这样的第 3 方。