Question

当我点按一个按钮时，我试图生成随机图像，但是当我点击按钮时，两个图像都会消失，只显示背景。

这是我的代码：

@IBAction func PickerTapped(sender: UIButton) {

    //randomize a number for the first image

    var firstrandomNumber = arc4random_uniform(7) + 1

    //construct a string with a random number

    var firstLeftHandImageString: String = String(format: "rud%i", firstrandomNumber)

    // set the left hand image view to the asset corresponding to the randomized number

    self.LeftHandImageView.image = UIImage(named: "firstLeftHandImageString")

    //randomize a number for the second image

    var secondrandomNumber = arc4random_uniform(7) + 1

    //construct a string with a random number 

    var secondRightHandImageString: String = String(format: "rud%i", secondrandomNumber)

    //set the right hand image view to the asset corresponding to the randomized number

    self.RightHandImageView.image = UIImage(named: "secondRightHandImageString")
}

Answer 1

self.RightHandImageView.image = UIImage(named: "secondRightHandImageString")

从名为＆＃34; secondRightHandImageString＆＃34;

的资产创建一个图像

如果你想要用你生成的字符串创建一个图像，你需要（注意变量名称周围没有双引号）

self.RightHandImageView.image = UIImage(named: secondRightHandImageString)

随机图像核心 - 按下按钮时显示背景

1 个答案: