这是我的代码:
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)
这是功能代码:
func makeItCoolAction(sender: UIGestureRecognizer){
print(sender.view?.tag)
print("Photo cooled")
}
控制台打印相同的值:0,这是默认值。我强烈需要将indexPath.row值传递给makeItCoolAction,但我看到UIGestureRecognizer没有标签属性但.view属性有它,就像你在代码中看到的那样。
我已将makeItCoolAction发件人从UILongPressGestureRecognizer更改为UIGestureRecogizer,并且仍然保持打印0值。
答案 0 :(得分:0)
此时视图为零:
coolGesture.view?.tag = 4
尝试在添加手势后设置点按,它有如下视图:
cell.addGestureRecognizer(coolGesture)
coolGesture.view?.tag = 4