ios - 奇怪的行为设置 tableView 行高和滚动位置 Swift

Question

在同一个viewController中，我有一个代表月份的天数的calendarTableView。在cellForRowAt处，我选择与当天对应的行并调用函数来填充timeSlotCollectionView。这一切都有效，但我遇到了一些奇怪的情况。

情况 1:行 height = auto 且 scrollPosition.none = timeSlotCollectionView 不遵循 cornerRadius

情况 2:行 height = auto 且 scrollPosition.middle = 线程 1:calendarTableView 上的 EXC_BAD_ACCESS(code=2，address=0x659ef4)单元格定义

案例3:行height = 44和scrollPosition.none = calendarTableView单元格不遵循cornerRadius

情况 4:行 height = 44 和 scrollPosition.middle = calendarTableView 单元格不遵循 cornerRadius

情况 5:行 height = 60 且 scrollPosition.none = calendarTableView 单元格确实遵循 cornerRadius

情况 6:行 height = 60 且 scrollPosition.middle = calendarTableView 单元格不遵循 cornerRadius再次..

我不介意行高为 60，但 scrollPosition 必须是.middle，否则我不会看到当前的行..

你能看出我做错了什么吗？我搜索了其他帖子，但找不到任何可以让我了解问题所在的线索。像往常一样非常感谢。这是calendarTableView函数:

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

        let cell = tableView.dequeueReusableCell(withIdentifier: "calendarCell", for: indexPath) as! CalendarTableViewCell

        // Configure the cell...

        let date = datesArray[indexPath.row]
        print(date)

        let calendar = Calendar.current
        let components = calendar.dateComponents([.year, .month, .day, .weekday], from: date)

        cell.dayLabel.text = "\(String(describing: components.day!))" + " " + "\(dayNamesArray[components.weekday! - 1])"
        cell.cellWeekday = components.weekday!
        print("cell weekday is: \(cell.cellWeekday!)") // prints correct weekday

        cell.cellId = "\(String(format:"%04d", components.year!))" + "\(String(format:"%02d", components.month!))" + "\(String(format:"%02d", components.day!))"
        self.selectedDate = cell.cellId // used for time slots cellId
        print("##################### selectedDate in tableview is :\(self.selectedDate) ")

        // highlighting current day cell
        if indexPath.row == self.actualDay - 1 && self.actualMonth == self.displayedMonth {

            cell.dayLabel.backgroundColor = UIColor.red.withAlphaComponent(0.3)

            // emulate user selecting the cell
            tableView.selectRow(at: indexPath, animated: false, scrollPosition: UITableViewScrollPosition.none) // changing to .middle makes the tableview go looping
            print(" @@@@@@@@@@@@@@@@@@@@@@@@@@   selected cell weekday is: \(cell.cellWeekday!) @@@@@@@@@@@@@@@@@@@@ ")
//            self.updateTimeSlots(selectedCell: cell)
//            self.actualWeekday = cell.cellWeekday! // nil error
            self.selectedDate = cell.cellId
//            calculateOpenTimeSlots()

        }
//        let cornerRadius: CGFloat = 5
//        cell.layer.cornerRadius = cornerRadius
//        cell.clipsToBounds = true
//        self.updateTimeSlots(selectedCell: cell)
        return cell

    }

Answer 1

我决定不选择今天的行，而只滚动calendarTableView以使其处于中间位置。我还在 heightForRowAt 中直接声明 row height。 calendarTableView 现在的行为符合预期，并且单元格不是直接选择的，而是按照我实际想要的方式突出显示。我希望这会帮助其他人。最终的函数是:

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

        let cell = tableView.dequeueReusableCell(withIdentifier: "calendarCell", for: indexPath) as! CalendarTableViewCell
        let cornerRadius: CGFloat = 5
        cell.layer.backgroundColor = UIColor.white.cgColor
        cell.layer.cornerRadius = cornerRadius
        cell.clipsToBounds = true
        cell.dayLabel.textColor = UIColor.white
        cell.dayLabel.layer.backgroundColor = UIColor.blue.withAlphaComponent(0.3).cgColor
        cell.dayLabel.layer.cornerRadius = cornerRadius
        cell.dayLabel.clipsToBounds = true
        // Configure the cell...

        let date = datesArray[indexPath.row]
        print(date)

        let calendar = Calendar.current
        let components = calendar.dateComponents([.year, .month, .day, .weekday], from: date)

        cell.dayLabel.text = "\(String(describing: components.day!))" + " " + "\(dayNamesArray[components.weekday! - 1])"
        cell.cellWeekday = components.weekday!
        print("cell weekday is: \(cell.cellWeekday!)") // prints correct weekday

        cell.cellId = "\(String(format:"%04d", components.year!))" + "\(String(format:"%02d", components.month!))" + "\(String(format:"%02d", components.day!))"
        self.selectedDate = cell.cellId // used for time slots cellId
        print("##################### selectedDate in tableview is :\(self.selectedDate) ")

        // highlighting current day cell
        if indexPath.row == self.actualDay - 1 && self.actualMonth == self.displayedMonth {

//            cell.layer.backgroundColor = UIColor.red.withAlphaComponent(0.3).cgColor
            cell.dayLabel.layer.backgroundColor = UIColor.red.withAlphaComponent(0.3).cgColor

            // emulate user selecting the cell
//            tableView.selectRow(at: indexPath, animated: false, scrollPosition: UITableViewScrollPosition.middle)
            tableView.scrollToRow(at: indexPath, at: UITableViewScrollPosition.middle, animated: true)
            print(" @@@@@@@@@@@@@@@@@@@@@@@@@@   selected cell weekday is: \(cell.cellWeekday!) @@@@@@@@@@@@@@@@@@@@ ")
            self.updateTimeSlots(selectedCell: cell)
//            self.actualWeekday = cell.cellWeekday! // nil error
            self.selectedDate = cell.cellId

        }

        return cell

    }