我有一个表视图控制器,用作Review Order屏幕,它基本上包含一些带静态内容的单元格(如标题)和其他带有动态内容的单元格如在先前视图上选择的服务列表)。我遇到的问题是,如果我向上滚动以查看视图的底部,然后再次向上滚动以查看顶部,我注意到动态单元格的顺序发生了变化。滚动更改表中动态单元格的顺序 - Swift 2.3
例如:
当视图第一渲染我看到在下面的顺序的服务的列表: 1)修指甲 2)修脚 3)30分钟桑拿浴
但是,如果我再次向下滚动,我会看到以下内容: 1)30分钟桑拿 2)修脚 3)修指甲
下面是呈现每个单元代码:
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
if (indexPath.row == 0) {
//static header cell
self.index = 0
let headerCell = tableView.dequeueReusableCellWithIdentifier("headerCell", forIndexPath: indexPath)
return headerCell
} else if (indexPath.row == 1) {
//static instruction cell
self.index = 0
let instructionCell = tableView.dequeueReusableCellWithIdentifier("instructionCell", forIndexPath: indexPath)
return instructionCell
} else if (indexPath.row == 2) {
//static services section header cell
self.index = 0
let servicesSectionHeaderCell = tableView.dequeueReusableCellWithIdentifier("servicesSectionHeaderCell", forIndexPath: indexPath)
return servicesSectionHeaderCell
} else if ((indexPath.row <= (self.services.count + 2)) && (indexPath.row > 2) && !self.services.isEmpty) {
//dynamic service cells
let serviceCell = tableView.dequeueReusableCellWithIdentifier("serviceCell", forIndexPath: indexPath) as! ServiceCell
serviceCell.serviceLabel.text = self.services[self.index]
self.index += 1
return serviceCell
} else if (indexPath.row == (self.services.count + 3)) {
//static appointment time section header cell
self.index = 0
let appointmentTimeSectionHeaderCell = tableView.dequeueReusableCellWithIdentifier("appointmentTimeSectionHeaderCell", forIndexPath: indexPath)
return appointmentTimeSectionHeaderCell
} else if (indexPath.row == (self.services.count + 4)) {
//static date and time cell
self.index = 0
let dateAndTimeCell = tableView.dequeueReusableCellWithIdentifier("dateAndTimeCell", forIndexPath: indexPath) as! DateAndTimeCell
dateAndTimeCell.dateAndTimeLabel.text = self.orderReview.serviceDate + SINGLE_WHITE_SPACE_STRING_CONSTANT + self.orderReview.serviceTime
return dateAndTimeCell
} else {
//default cell
self.index = 0
let cell = UITableViewCell()
return cell
}
}
将tableview拆分成不同的部分可能会有所帮助,而不需要在它们之间留有空格。这样你就没有手动索引管理的脆弱性。 – PeejWeej