ios - 在scrollView ios swift中放大UIView

Question

我有一个更大的 UIview(例如:200x200)，需要适合 ScrollView(100x100)，我想缩小 Uiview 以适应 ScrollView 的大小并在初始加载期间显示它。

Answer 1

    var aspectCalX = self.view.frame.width(this is smaller View) / a4view.frame.width(this is bigger View)
    var aspectCalY = self.view.frame.height(this is smaller view) / a4view.frame.height(this is bigger view)

    biggerview.autoresizesSubviews = true

    biggerview.transform = CGAffineTransform(scaleX: aspectCalX, y: aspectCalY)
    biggerview.frame = CGRect(x: 0.0, y: 0.0, width: a4view.frame.width, height: a4view.frame.height)       
    smallerView.addSubview(biggerview)