XLPagerTabStrip - 如何在选择更改时更改所选栏的颜色

XLPagerTabStrip - How do I change the selected bar color as the selection changes

我正在尝试设计一个 XLPagerTabStrip 控件,其中整体主题随着选项卡的变化而变化。

以下是选项卡更改时调用的内容

changeCurrentIndexProgressive = { [weak self] (oldCell: ButtonBarViewCell?, newCell: ButtonBarViewCell?, progressPercentage: CGFloat, changeCurrentIndex: Bool, animated: Bool) -> Void in
        guard changeCurrentIndex == true else { return }
        oldCell?.label.textColor = .black
        newCell?.label.textColor = UIColor.red

        //Change the navigation bar's color
        self?.navigationController?.navigationBar.barTintColor = UIColor.red

        //Attempting to change the selected bar color
        self?.settings.style.selectedBarBackgroundColor = UIColor.green       
   }

更改导航控制器的颜色有效,但我无法从此处更改所选栏(或设置对象下的任何内容)?

加载视图后是否可以更改设置?

代码检查

如果您查看代码 Code Search for selectedBarBackgroundColor,您会发现这 3 个有趣的搜索结果:

BaseButtonBarPagerTabStripViewController#viewDidLoad

buttonBarView.selectedBar.backgroundColor = settings.style.selectedBarBackgroundColor

BarPagerTabStripViewController#viewDidLoad

barView.selectedBar.backgroundColor = settings.style.selectedBarBackgroundColor ?? barView.selectedBar.backgroundColor

ButtonBarPagerTabStripViewController#viewDidLoad

buttonBarView.selectedBar.backgroundColor = settings.style.selectedBarBackgroundColor

这意味着您需要在 viewDidLoad 之前设置 BackgroundColor。

问题

另见本期答案:XLPagerTabStrip Issue #137:

Actually this isnot a issue. Settings should be configured before viewDidLoad is called. Could you please document it in the readme?

解决方法

buttonBarView 是一个 public 变量,也许您可​​以将其设置为直接 属性: buttonBarView.selectedBar.backgroundColor