晚上好,
我正在尝试创建一个具有三个可选图像视图的VC。 (表示用户可以单击该框,它将从其手机上载图像)
我正在尝试将图像彼此紧紧约束。我希望有一个主盒子,右边有两个较小的盒子。但是当我运行该应用程序时,它崩溃了。 “线程1:信号SIGABRT”
我将在下面保留我的代码。非常感谢您的帮助!
setupJobImageView()
setupJobImageView2()
setupJobImageView3()
}
func setupJobImageView() {
JobImageView.anchors(top: self.view.topAnchor, topPad: 20, bottom: nil, bottomPad: 0, left: view.leftAnchor, leftPad: 24, right: nil, rightPad: 0, height: 50, width: 0)
}
lazy var JobImageView: UIImageView = {
let imageView = UIImageView()
imageView.image = UIImage(named: "picture")
imageView.translatesAutoresizingMaskIntoConstraints = false
imageView.contentMode = .scaleAspectFill
imageView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(handleSelectJobImageView)))
imageView.isUserInteractionEnabled = true
return imageView
}()
func setupJobImageView2() {
JobImageView2.anchors(top: self.view.topAnchor, topPad: 20, bottom: nil, bottomPad: 0, left: JobImageView.rightAnchor, leftPad: 24, right: nil, rightPad: 0, height: 30, width: 0)
}
lazy var JobImageView2: UIImageView = {
let imageView2 = UIImageView()
imageView2.image = UIImage(named: "add")
imageView2.translatesAutoresizingMaskIntoConstraints = false
imageView2.contentMode = .scaleAspectFill
imageView2.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(handleSelectJobImageView2)))
imageView2.isUserInteractionEnabled = true
return imageView2
}()
func setupJobImageView3() {
JobImageView3.anchors(top: JobImageView2.bottomAnchor, topPad: 20, bottom: nil, bottomPad: 0, left: JobImageView.rightAnchor, leftPad: 24, right: nil, rightPad: 0, height: 30, width: 0)
}
lazy var JobImageView3: UIImageView = {
let imageView3 = UIImageView()
imageView3.image = UIImage(named: "add")
imageView3.translatesAutoresizingMaskIntoConstraints = false
imageView3.contentMode = .scaleAspectFill
imageView3.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(handleSelectJobImageView3)))
imageView3.isUserInteractionEnabled = true
return imageView3
}()
import UIKit
extension newPostViewController: UIImagePickerControllerDelegate, UINavigationControllerDelegate {
@objc func handleSelectJobImageView() {
let picker = UIImagePickerController()
picker.delegate = self
picker.allowsEditing = true
present(picker, animated: true, completion: nil)
}
@objc func handleSelectJobImageView2() {
let picker2 = UIImagePickerController()
picker2.delegate = self
picker2.allowsEditing = true
present(picker2, animated: true, completion: nil)
}
@objc func handleSelectJobImageView3() {
let picker3 = UIImagePickerController()
picker3.delegate = self
picker3.allowsEditing = true
present(picker3, animated: true, completion: nil)
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
var selectedImageFromPicker: UIImage?
if let editedImage = info["UIImagePickerControllerEditedImage"] as? UIImage {
selectedImageFromPicker = editedImage
} else if let originalImage = info["UIImagePickerControllerOriginalImage"] as? UIImage {
selectedImageFromPicker = originalImage
}
if let selectedImage = selectedImageFromPicker {
JobImageView.image = selectedImage
}
if let selectedImage = selectedImageFromPicker {
JobImageView2.image = selectedImage
}
if let selectedImage = selectedImageFromPicker {
JobImageView3.image = selectedImage
}
dismiss(animated: true, completion: nil)
}
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
print("canceled picker")
dismiss(animated: true, completion: nil)
}
}
答案 0 :(得分:1)
在设置约束之前,您可能需要添加imageViews进行查看,因此对所有约束都执行此操作
view.addSubview(imageView)
return imageView