iOS swift: select 一个单元格我想 select 整行

Question

我有一个日历，当我每天 select 时，我想 select 整行（一周）.. 这是我目前的代码：

//When a date is selected
func calendar(_ calendar: JTAppleCalendarView, didSelectDate date: Date, cell: JTAppleCell?, cellState: CellState) {

    selectTheWeek(of: date)
    setupLayoutCell(cell: cell, cellState: cellState)

}

func selectTheWeek(of date: Date) {
    let starOfTheWeek = date.startOfWeek()
    let endOfTheWeeK = date.endOfWeek()
    calendarCollectionView.selectDates(from: starOfTheWeek, to: endOfTheWeeK)
}

extension Date {
func startOfWeek() -> Date {
    let calendar = Calendar.autoupdatingCurrent
    let currentDateComponents = calendar.dateComponents([.yearForWeekOfYear, .weekOfYear], from: self)
    return calendar.date(from: currentDateComponents)!
}

func endOfWeek() -> Date {
    let cal = Calendar.autoupdatingCurrent
    var component = DateComponents()
    component.weekOfYear = 1
    component.day = -1
    return cal.date(byAdding: component, to: startOfWeek())!
}
}

问题是我有一个无限循环，原因很清楚。但我不知道如何防止它。有帮助吗？

JTAppleCalender 是一个外部库。它是 collectionView.

的扩展

Answer 1

我知道这不是最好的解决方案，但它可以避免您的问题

//When a date is selected
var shouldSelectWeek = true
func calendar(_ calendar: JTAppleCalendarView, didSelectDate date: Date, cell: JTAppleCell?, cellState: CellState) {
    if shouldSelectWeek{
        selectTheWeek(of: date)
        shouldSelectWeek = false
    }
    setupLayoutCell(cell: cell, cellState: cellState)


}

func selectTheWeek(of date: Date) {
    let starOfTheWeek = date.startOfWeek()
    let endOfTheWeeK = date.endOfWeek()
    calendarCollectionView.selectDates(from: starOfTheWeek, to: endOfTheWeeK)
}

extension Date {
    func startOfWeek() -> Date {
        let calendar = Calendar.autoupdatingCurrent
        let currentDateComponents = calendar.dateComponents([.yearForWeekOfYear, .weekOfYear], from: self)
        return calendar.date(from: currentDateComponents)!
    }

    func endOfWeek() -> Date {
        let cal = Calendar.autoupdatingCurrent
        var component = DateComponents()
        component.weekOfYear = 1
        component.day = -1
        return cal.date(byAdding: component, to: startOfWeek())!
}

Answer 2

只需添加一个新的布尔变量，例如 var shouldIgnoreDateSelection = false，然后您只需执行

func calendar(_ calendar: JTAppleCalendarView, didSelectDate date: Date, cell: JTAppleCell?, cellState: CellState) {
    if shouldIgnoreDateSelection == false {
        selectTheWeek(of: date)
    }
    setupLayoutCell(cell: cell, cellState: cellState)
}

func selectTheWeek(of date: Date) {
    let starOfTheWeek = date.startOfWeek()
    let endOfTheWeeK = date.endOfWeek()
    shouldIgnoreDateSelection = true
    calendarCollectionView.selectDates(from: starOfTheWeek, to: endOfTheWeeK)
    shouldIgnoreDateSelection = false
}

Answer 3

您可以使用 2 种技巧来打破循环。

第一个:

calendarViewselectDates(from: starOfTheWeek, to: endOfTheWeeK, triggerSelectionDelegate: false)

通过将 triggerSelectionDelegate 设置为 false，您的委托函数 didSelect 将不会被调用。

第二个：

如果您正在使用 MasterBranch 代码（我将在一周左右发布），您可以知道您的选择是否是 程序员发起的 vs 用户启动。你知道这个 --> cellState.

if cellState.selectionType == .programatic {
   // ignore stuff        
} else {
   // Do stuff
}

您可以将此 if 语句放入 shouldSelect 函数中。

iOS swift: select 一个单元格我想 select 整行

iOS swift: selecting a cell I want to select the entire row

ios

swift

collectionview

jtapplecalendar