无法分配类型“[UIImage]”的值？输入 'UIImage' (swif3)

Question

我正在尝试将 2 个 uiimages 保存在一起，然后将组合图像放在一起，并使其等于名为 finalImage 的图像视图。但是，我收到错误消息，指出我已将标题分配给我的问题。只是想将组合的 uiimage 放在图像视图中。

  @IBOutlet var finalImage: UIImageView!
override func viewDidLoad() {
    super.viewDidLoad()


    let bottomImage:UIImage = UIImage(named: "pic")!
    let topImage:UIImage = UIImage(named:"wall")!
    // Change here the new image size if you want
    let newSize = CGSize(width: bottomImage.size.width, height: bottomImage.size.height)
    UIGraphicsBeginImageContextWithOptions(newSize, false, bottomImage.scale)
    bottomImage.draw(in: CGRect(x: 0,y: 0,width: newSize.width,height: newSize.height))
    topImage.draw(in: CGRect(x: 0,y: 0,width: newSize.width,height: newSize.height), blendMode:CGBlendMode.normal, alpha:1.0)
    let newImage:UIImage = UIGraphicsGetImageFromCurrentImageContext()!
    UIGraphicsEndImageContext()
 //error line
   finalImage.image = newImage.images

    }

Answer 1

你的newImage是UIImage，所以把

finalImage.image = newImage

因为，您有 UIImage 类型，而不是 [UIImage] - UIImage 对象数组，在 finalImage.image

中

无法分配类型“[UIImage]”的值？输入 'UIImage' (swif3)

Cannot assign value of type ''[UIImage]'? to type 'UIImage' (swif3)

uiimageview

uiimage

ios

swift3

blend-mode