我想更改所有过去的日期标题颜色在 Swift 中的 fscalendar 不是特定日期 我添加了这段代码：- 委托方法：-
func calendar(calendar: FSCalendar!, appearance: FSCalendarAppearance!, titleDefaultColorForDate date: NSDate!) -> UIColor! {
if date .compare(Date()) == .orderedAscending {
return .green
}else {
return .red
}
}
【问题讨论】：
尝试连接delegate和日历视图的数据源并检查，因为我用这个方法得到了输出
class YourViewController: UIViewController, FSCalendarDelegate, FSCalendarDataSource, FSCalendarDelegateAppearance {
.....
override func viewDidLoad()
{
super.viewDidLoad()
yourCalendarView.delegate = self
yourCalendarView.dataSource = self
//If you are using storyboard make sure data source and delegates connected
}
......
func calendar(_ calendar: FSCalendar, appearance: FSCalendarAppearance, titleDefaultColorFor date: Date) -> UIColor? {
//Remove timeStamp from date
if date.removeTimeStamp!.compare(Date().removeTimeStamp!) == .orderedAscending {
return .green
}else if date.removeTimeStamp!.compare(Date().removeTimeStamp!) == .orderedDescending{
return .red
} else {
return .black
}
}
}
extension Date {
public var removeTimeStamp : Date? {
guard let date = Calendar.current.date(from: Calendar.current.dateComponents([.year, .month, .day], from: self)) else {
return nil
}
return date
}
}
输出：
如果您希望过去和未来日期的标题颜色相同，请使用以下代码
func calendar(_ calendar: FSCalendar, appearance: FSCalendarAppearance, titleDefaultColorFor date: Date) -> UIColor? {
if date.removeTimeStamp!.compare(Date().removeTimeStamp!) == .orderedAscending || date.removeTimeStamp!.compare(Date().removeTimeStamp!) == .orderedDescending {
return .green
} else {
return .black
}
}
输出：
【讨论】：