Question

我正在使用日历cocoapod（CVCalendar：https://github.com/CVCalendar/CVCalendar），它有两种视图类型; weekView和monthView。 pod中需要以下功能，我在类扩展中使用它：

 func presentationMode() -> CalendarMode {

    let isPhone: Bool = UIDevice.current.userInterfaceIdiom == .phone
    let isLandscape: Bool = UIDevice.current.orientation.isLandscape

    if isPhone == true && isLandscape == true {
        return.weekView
    } else {
            return .monthView
    }
}

如果日历显示在横向上的iPhone上，或者如果它显示在其他任何内容上的monthView，我试图呈现weekView。然后我在viewWillTransition中调用函数：

override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
    super.viewWillTransition(to: size, with: coordinator)

       self.presentationMode()

    }

但是当使用上面的代码时，我收到警告'调用'presentationMode'的结果未使用，视图不会更改为IPhone Lanscape中的weekView。

Answer 1

请更新功能

func presentationMode() -> CalendarMode {
    let isPhone: Bool = UIDevice.current.userInterfaceIdiom == .phone
    let isLandscape: Bool = UIDevice.current.orientation.isLandscape

    if isPhone == true && isLandscape == true {
        return.weekView
    } else {
        return .monthView
    }
}

override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
    super.viewWillTransition(to: size, with: coordinator)
    self.calendarView.calendarMode = self.presentationMode()
    self.calendarView.commitCalendarViewUpdate()
}

Swift：viewWillTransition中调用函数的结果未使用

1 个答案: