Swift3 如何在imageview swift 3中设置图像？

因此，我有一个名为cashOrCredit的图像视图，我试图通过编程设置它的图像，但不知何故无法设置

首先，我将图像设置为这样

cell.cashOrCredit.image = UIImage(named: "cash1.png")

我得到一个错误，说需要一个“，”分隔符

然后我就这样试过了

var cashImage: UIImage?
cashImage = "cash1.png"
cell.cashOrCredit.image = cashImage

但我得到一个线程1 EXC错误指令。 我似乎不明白出了什么问题

这里是错误

---

检查现金或信用证是否为uiimageview

第二,

cashImage=UIImage（名为：“cash1.png”）

如果这不起作用，试试看

手机？。现金或信用卡图像

检查单元格是否为零

在Swift代码的上下文中，EXC_BAD_指令通常意味着您遇到了编译器陷阱，也就是说，由于运行时检测到错误，编译器将未定义的指令插入到代码中。最常见的原因是：

无法展开可选项-这可以是强制展开（！）或隐式展开（访问隐式展开的可选项为零）

数组越界

强制强制转换失败（as！），原因可能是该值为nil可选值，或者该值的类型错误

试试这个：

cell.cashOrCredit.image = UIImage(named: "cash1")

并检查Assets.xcsets中是否有“cash1.png”图像

如果你得到了答案，就放弃投票给我的答案。

删除“.png”：

您还可以通过编程方式进行设置：

let cellImage = UIImageView(frame: CGRect(x: X, y: Y, width: WIDTH, height: HEIGHT))
cellImage.image = UIImage(named: "cash1")
cell.addSubview(cellImage)

为Swift 3更新：

使用下面的简单代码，将图像设置为UIImageView

class YourViewControllerName: UIViewController {

        var mYourImageViewOutlet: UIImageView?

        func addImageToUIImageView{
            var yourImage: UIImage = UIImage(named: "Birthday_logo")!
            mYourImageViewOutlet.image = yourImage
        } // call this function where you want to set image.
     }

注意：项目的Assets.xcsets中必须存在“生日标志”类型的图像。 我附上了截图，如果你需要任何帮助，请参考它

****//在要将图像添加到UIImageView的任何位置使用。[这里我使用了一个函数&在该函数中，我编写了一个代码，将image设置为UIImageView]****

---

享受。。！

拍摄ImageView的出口

@IBOutlet weak var imgProfile: UIImageView!

浏览以下代码，其中包含的内容将有助于您从相机中拾取图像或捕获图像

func choosePicker() {
        let alertController = UIAlertController(title: "Select Option", message: nil, preferredStyle: (IS_IPAD ? UIAlertControllerStyle.alert : UIAlertControllerStyle.actionSheet))
        let cancelAction = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.cancel, handler: { action -> Void in
        })
        let gallery = UIAlertAction(title: "From Gallery", style: UIAlertActionStyle.default
            , handler: { action -> Void in
                self.openPicker(isCamera: false)
        })
        let camera = UIAlertAction(title: "Take Photo", style: UIAlertActionStyle.default
            , handler: { action -> Void in
                self.openPicker(isCamera: true)
        })
        alertController.addAction(gallery)
        alertController.addAction(camera)
        alertController.addAction(cancelAction)
        self.present(alertController, animated: true, completion: nil)
    }

func openPicker(isCamera : Bool) {
        let picker:UIImagePickerController?=UIImagePickerController()
        if isCamera {
            picker!.sourceType = UIImagePickerControllerSourceType.camera
        } else {
            picker!.sourceType = UIImagePickerControllerSourceType.photoLibrary
            picker!.allowsEditing = true
        }
        picker?.delegate = self

        if UIDevice.current.userInterfaceIdiom == .phone {
            self.present(picker!, animated: true, completion: nil)
        }
        else {
            picker!.modalPresentationStyle = .popover
            present(picker!, animated: true, completion: nil)//4
            picker!.popoverPresentationController?.sourceView = imgProfile
            picker!.popoverPresentationController?.permittedArrowDirections = UIPopoverArrowDirection.up
        }
    }

// MARK: - UIImagePickerControllerDelegate Methods
    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
        if let image = info[UIImagePickerControllerOriginalImage] as? UIImage {
            self.imgProfile.image = image
        }
        picker.dismiss(animated: true, completion: nil);
    }

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

---

调用选择picker方法，无论您想在哪里调用。

@IBOutlet弱var cashOrCredit:UIImageView！这就是现金信用卡的运作方式defined@A.G您是否将图像作为图像集放在“资源”文件夹中？？或者直接拖动到你的项目？？即使你拼错了图像名称，它也不会使你的程序崩溃。我认为错误在别的地方。你能发布调试错误吗？我尝试了两种方法，但它仍然给我相同的结果error@A.G你能告诉我调试中的错误吗？？。Pic或其他？？如果

现金或信用卡

是IBOutlet，您应该在Interface Builder中验证它是否正确连接。

func choosePicker() {
        let alertController = UIAlertController(title: "Select Option", message: nil, preferredStyle: (IS_IPAD ? UIAlertControllerStyle.alert : UIAlertControllerStyle.actionSheet))
        let cancelAction = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.cancel, handler: { action -> Void in
        })
        let gallery = UIAlertAction(title: "From Gallery", style: UIAlertActionStyle.default
            , handler: { action -> Void in
                self.openPicker(isCamera: false)
        })
        let camera = UIAlertAction(title: "Take Photo", style: UIAlertActionStyle.default
            , handler: { action -> Void in
                self.openPicker(isCamera: true)
        })
        alertController.addAction(gallery)
        alertController.addAction(camera)
        alertController.addAction(cancelAction)
        self.present(alertController, animated: true, completion: nil)
    }

func openPicker(isCamera : Bool) {
        let picker:UIImagePickerController?=UIImagePickerController()
        if isCamera {
            picker!.sourceType = UIImagePickerControllerSourceType.camera
        } else {
            picker!.sourceType = UIImagePickerControllerSourceType.photoLibrary
            picker!.allowsEditing = true
        }
        picker?.delegate = self

        if UIDevice.current.userInterfaceIdiom == .phone {
            self.present(picker!, animated: true, completion: nil)
        }
        else {
            picker!.modalPresentationStyle = .popover
            present(picker!, animated: true, completion: nil)//4
            picker!.popoverPresentationController?.sourceView = imgProfile
            picker!.popoverPresentationController?.permittedArrowDirections = UIPopoverArrowDirection.up
        }
    }

// MARK: - UIImagePickerControllerDelegate Methods
    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
        if let image = info[UIImagePickerControllerOriginalImage] as? UIImage {
            self.imgProfile.image = image
        }
        picker.dismiss(animated: true, completion: nil);
    }

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