Question

注意： ImageView Click事件在Android中可用，我想知道它在iOS中是否可用

我是iOS的新手，请考虑，我有相机图像，必须单击它的OnClick才能打开设备相机，但是我正在获得图像操作功能。附加屏幕截图

我的代码：

import UIKit

class AttendanceViewController: UIViewController {

    @IBOutlet weak var loginimagebtn: UIImageView!
    @IBOutlet weak var loginstatus: UITextView!
    @IBOutlet weak var displayloginimg: UIImageView!

    override func viewDidLoad() {
        super.viewDidLoad()
    }

    func openCamer() {


    if UIImagePickerController.isSourceTypeAvailable(
        UIImagePickerControllerSourceType.camera) {

        let imagePicker = UIImagePickerController()
        imagePicker.delegate = self
        imagePicker.sourceType = UIImagePickerControllerSourceType.camera
        imagePicker.allowsEditing = false
        self.present(imagePicker,animated: true,completion : nil)
    }

}

    // For Toast message below code
    func showToast(message : String) {
        let toastLabel = UILabel(frame: CGRect(x: self.view.frame.size.width/2 - 75, y: self.view.frame.size.height-100, width: 150, height: 35))
        toastLabel.backgroundColor = UIColor.black.withAlphaComponent(0.6)
        toastLabel.textColor = UIColor.white
        toastLabel.textAlignment = .center;
        toastLabel.font = UIFont(name: "Montserrat-Light", size: 12.0)
        toastLabel.text = message
        toastLabel.alpha = 1.0
        toastLabel.layer.cornerRadius = 10;
        toastLabel.clipsToBounds  =  true
        self.view.addSubview(toastLabel)
        UIView.animate(withDuration: 4.0, delay: 0.1, options: .curveEaseOut, animations: {
            toastLabel.alpha = 0.0
        }, completion: {(isCompleted) in
            toastLabel.removeFromSuperview()
        })
    }
}

Answer 1

您可以使用 UITapGestureRecognizer 在UIImageView上实现此功能。在您的 viewDidLoad（）方法中使用以下代码。

   override func viewDidLoad() {
            super.viewDidLoad()
            let tapGetsure = UITapGestureRecognizer(target: self,
                                                    action: #selector(self.openCamer))
            tapGetsure.numberOfTapsRequired = 1
            loginimagebtn.gestureRecognizers = tapGetsure
            loginimagebtn.isUserInteractionEnabled = true
    }

Answer 2

好的，请执行以下步骤

步骤-1

将UIbutton拖放到当前的viewcontroller

步骤-2

删除按钮的默认标题

第3步

UIbutton具有属性图像->将图像添加到相机中，如下图所示，并根据需要最终更改按钮框

步骤-4

转到连接检查器->选择 Touch Up Inside 中的相机按钮事件，并为您的按钮创建事件，例如

选项-2

如果您想继续进行imageview，我的意思是您不想继续进行UIButton，请遵循以下代码

 let cameraTap = UITapGestureRecognizer(target: self, action: #selector(cameraTapped))
    displayloginimg.isUserInteractionEnabled = true
    displayloginimg.addGestureRecognizer(cameraTap)

并为您的imageview处理事件

 @objc func cameraTapped() {
   // open your camera controller here
 }

如何在iOS中创建imageView点击事件？

2 个答案: