我使用以下代码创建带有按钮的动画:
func collectionView(_ collectionView: UICollectionView, willDisplay cell: UICollectionViewCell, forItemAt indexPath: IndexPath) {
switch indexPath.section {
case 0:
self.button1.constant = self.button2.constant
case 6:
self.button3.constant = self.button4.constant
default:
self.button1.constant = 0
self.button3.constant = 0
}
UIView.animate(withDuration: 1.0, delay: 0.0,
options: [], animations: {
self.view.layoutIfNeeded()
})
}
我有
collectionView
。但是用我的按钮,我的collectionView
也动画了。我该怎么做只有按钮动画?该代码不起作用:
UIView.animate(withDuration: 1.0, delay: 0.0,
options: [], animations: {
self.myButton.layoutIfNeeded()
self.myButton1.layoutIfNeeded()
})
最佳答案
func collectionView(_ collectionView: UICollectionView, willDisplay cell: UICollectionViewCell, forItemAt indexPath: IndexPath) {
UIView.animate(withDuration: 1.0, delay: 0.0,
options: [], animations: {
switch indexPath.section {
case 0:
self.button1.constant = self.button2.constant
self.myButton1.layoutIfNeeded()
case 6:
self.button3.constant = self.button4.constant
self.myButton3.layoutIfNeeded()
default:
self.button1.constant = 0
self.button3.constant = 0
self.myButton1.layoutIfNeeded()
self.myButton6.layoutIfNeeded()
}
})
}