[英]How to pass indexPath.row of the dragged cell into a function? (SWIFT)
[英]How to pass indexPath.row through the tag property with UILongPressGestureRecognizer in Swift?
這是我的代碼:
func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCellWithReuseIdentifier("cell", forIndexPath: indexPath) as! imageUserCell
let coolGesture = UILongPressGestureRecognizer(target: self, action: #selector(detailedPerson.makeItCoolAction(_:)))
coolGesture.minimumPressDuration = 0.5
coolGesture.view?.tag = 4
cell.addGestureRecognizer(coolGesture)
這是功能代碼:
func makeItCoolAction(sender: UIGestureRecognizer){
print(sender.view?.tag)
print("Photo cooled")
}
控制台打印相同的值:0,這是默認值。 我強烈需要將indexPath.row值傳遞給makeItCoolAction但我看到UIGestureRecognizer沒有tag屬性,但.view屬性有它,就像你在代碼中看到的那樣。
我已經將makeItCoolAction發送方從UILongPressGestureRecognizer更改為UIGestureRecogizer,它仍然保持打印0值。
此時視圖為零:
coolGesture.view?.tag = 4
添加手勢后嘗試設置水龍頭,它有如下視圖:
cell.addGestureRecognizer(coolGesture)
coolGesture.view?.tag = 4
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