我想在 “10/53”
下获取 Collection View 中选定单元格的数量作为幻灯片共享应用程序我厌倦了很多方法都错了，例如: “(print[indexpath.row])”或打印“cell[indexpath.row].count”
func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCellWithReuseIdentifier("cell", forIndexPath: indexPath) as! CollectionViewCell
// Configure the cell
if indexPath.row == 0 {
cell.txxt.text = "Biz memorabilia: 1st day in business, a cold & cloudy day in 1955, @McDonalds did $366.12 in revenue on 2 registers.Biz memorabilia: 1st day in business, a cold & cloudy day in 1955, @McDonalds did $366.12 in revenue on 2 registers."
}
if indexPath.row == 1 {
cell.txxt.text = "SmartHalo: Turn any bike into a smart bike http://www.producthunt.com/tech/smarthalo via @gozmike on @producthunt"
}
if indexPath.row == 2 {
cell.txxt.text = "Traditionally, policymakers & nonprofits try to improve financial health by measuring & teaching financial literacy"
}
//slideNumber is uilabel in the collectionViewCell
cell.slideNumber.text = "(print[indexpath.row])"
return cell
}
最佳答案
使用 visibleCells 获取当前可见，对于 10 of 53:
func scrollViewDidScroll(scrollView: UIScrollView!) {
for cell in collectionView.visibleCells() as [CollectionViewCell] {
var indexPath : NSIndexPath = collectionView.indexPathForCell(cell as CollectionViewCell)!
// do something
// display 10 of 53 here
}
}
单元格中的 10/53
func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCellWithReuseIdentifier("cell", forIndexPath: indexPath) as! CollectionViewCell
// Configure the cell
if indexPath.row == 0 {
cell.txxt.text = "Biz memorabilia: 1st day in business, a cold & cloudy day in 1955, @McDonalds did $366.12 in revenue on 2 registers.Biz memorabilia: 1st day in business, a cold & cloudy day in 1955, @McDonalds did $366.12 in revenue on 2 registers."
}
if indexPath.row == 1 {
cell.txxt.text = "SmartHalo: Turn any bike into a smart bike http://www.producthunt.com/tech/smarthalo via @gozmike on @producthunt"
}
if indexPath.row == 2 {
cell.txxt.text = "Traditionally, policymakers & nonprofits try to improve financial health by measuring & teaching financial literacy"
}
//slideNumber is uilabel in the collectionViewCell
cell.slideNumber.text = NSString(format: "%d/%d", indexPath.row, totalCell) // totalCell is num of cells you have
return cell
}
关于ios - 如何获取 collectionviewcell 的选定 indexpath.row 的数量作为 slideshare，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/32239414/