滚动视图不水平滚动

Question

我有一个自定义视图，我将其设置为父级：

func setup(){
    view.backgroundColor = .gray
    view.addSubview(chartView)
    chartView.leftAnchor.constraint(equalTo: view.leftAnchor).isActive = true
    chartView.rightAnchor.constraint(equalTo: view.rightAnchor).isActive = true
    chartView.topAnchor.constraint(equalTo: view.topAnchor, constant: statusAndNavigationBarHeight).isActive = true
    chartView.heightAnchor.constraint(equalToConstant: Dimensions.chartHeight.value).isActive = true
}

然后在该视图中，我试图设置一个滚动条：

scroll = UIScrollView.init(frame: CGRect(x: 0.0, y: 0.0, width: scrollWidth(), // print 728.0
                                                 height: Double(Dimensions.chartHeight.value))) // print 400.0
    scroll.isScrollEnabled = true
    scroll.showsHorizontalScrollIndicator = true
    addSubview(scroll)
}

仅此而已，当我启动应用程序时，我无法水平拖动和滚动，在调试编辑器中，我看不到它是宽幅滚动视图。

Answer 1

scrollView不会随着它的大小滚动，例如，它需要一个定义其内容大小的内容

let customLang = CustomLanguage() //declare at top

NSLocalizedString("StringToLocalize", tableName: nil, bundle: customLang.createBundlePath(), value: "", comment: “”) //use in each String