Ios 我想用两个按钮选择图像，并想在swift中的两个不同图像视图上显示这些图像。我该怎么做。？

我想使用两个按钮选择图像，并想在swift中的两个不同图像视图上显示这些图像

 func pickimage(){
            if UIImagePickerController.isSourceTypeAvailable(.photoLibrary){

                let controller = UIImagePickerController()
                controller.delegate = self
                controller.sourceType = .photoLibrary
                controller.allowsEditing = false
                present(controller, animated: true, completion: nil)
            }

        }

图像选择器代理

extension AdnewDOC : UIImagePickerControllerDelegate,UINavigationControllerDelegate {

    func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
        dismiss(animated: true, completion: nil)
    }


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


            let image = info[UIImagePickerControllerOriginalImage] as! UIImage
            frontview.image = image
            frontview.contentMode = .scaleAspectFill

         dismiss(animated: true, completion: nil)


    }


}

---

您可以像这样使用

objective-c

关联类型

objc\u setassociated object

和

objc\u getassociated object

我已经更新了您的方法，请通过按钮操作方法传递您的图像视图obejct（您要显示图像的图像视图）。与按钮的演示动作方法类似：

import ObjectiveC

var myKey = "myObjectKey"


@IBAction func firstButtonAction(_ sender: Any) {
            pickimage(imageView: firstImageView)
    }

@IBAction func secondButtonAction(_ sender: Any) {
            pickimage(imageView: secondImageView)
    }


func pickimage(imageView: UIImageView){
        if UIImagePickerController.isSourceTypeAvailable(.photoLibrary){
            let controller = UIImagePickerController()
            objc_setAssociatedObject(controller, &myKey, imageView, objc_AssociationPolicy.OBJC_ASSOCIATION_RETAIN_NONATOMIC)
            controller.delegate = self
            controller.sourceType = .photoLibrary
            controller.allowsEditing = false
            present(controller, animated: true, completion: nil)
        }
    }

并在委托方法中获取图像对象，如下所示：

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

        let imageView = objc_getAssociatedObject(picker, &myKey) as! UIImageView

        let image = info[UIImagePickerControllerOriginalImage] as! UIImage
        imageView.image = image
        imageView.contentMode = .scaleAspectFill
        dismiss(animated: true, completion: nil)
}

有关如何使用

objc_setAssociatedObject

和

objc_getAssociatedObject

的更多了解，请查看以下链接：

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不明白。我想实现当我点击按钮1时，所选图像将应用于imageview1..当我点击按钮2时，所选图像将应用于imageview2。我已更新了我的答案，从按钮操作方法，您必须调用pickimage方法，这样它才能工作。您可以使用此多按钮操作方法。在这种方法中，我们将图像视图与picker控制器相关联，当图像进入委托方法时，我们将获得关联对象，即图像视图。