我希望将集合视图中所选单元格的数量设置为“10/53”
下面的幻灯片共享应用程序我厌倦了许多方法,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
}
答案 0 :(得分:1)
使用visibleCells获取当前可见的 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
}