CVCalendar查看日期超出日历视图

Question

我正在尝试使我的CVCalendar视图与屏幕旋转兼容，如果设备是iphone并且在横向上，视图将切换到weekView，如果还有其他任何内容将在monthView中。这是我的代码：

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


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

    coordinator.animate(alongsideTransition: nil, completion: {
        _ in


         if isLandscape && isPhone {

            self.calendarView.changeMode(.weekView)


        } else {

            self.calendarView.changeMode(.monthView)
        }
    }
}

此代码适用于过渡到.weekView。但是当转换回iphone 6,7上的.monthView并加上＆＃39;日历视图日期超出了calendarView。