【发布时间】:2018-09-17 16:42:32
【问题描述】:
我有一个 UITableView,其中每一行都是一个自定义的 XIB。一行有 4 个 UIButton,它们是选项,例如问题、信息等。当 UIButton 被点击时,我会在 CALayer 中显示动画。当table view滚动时,CALayer被移除,即动画消失。
当按钮被点击时,我创建了 CALayer 并且动画开始了。如何确保表格滚动或更新时 CALayer 不会消失?
class ReasonForSupportTableViewCell: UITableViewCell {
let animationView = AnimationView()
var hasButtonBeenTapped = false
var previousButtonTapped: UIButton? = nil
//IBOutlets
@IBOutlet weak var questionButton: UIButton!
@IBOutlet weak var informationButton: UIButton!
@IBOutlet weak var crashButton: UIButton!
@IBOutlet weak var bugButton: UIButton!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
//set initial button
questionButton.sendActions(for: .touchUpInside)
}
func createView(sender: UIButton) {
//draw the frame
animationView.frame = CGRect(x: 0, y: 0, width: 75.0, height: 75.0)
//change the view background color
animationView.backgroundColor = UIColor.clear
animationView.isUserInteractionEnabled = false
//add the view.
sender.addSubview(animationView)
}
@IBAction func buttonTapped(_ sender: UIButton) {
if previousButtonTapped == nil {
//you haven't tapped a button yet
createView(sender: sender)
animationView.animateTo()
previousButtonTapped = sender
} else if previousButtonTapped == sender {
animationView.removeAnimation()
previousButtonTapped = nil
} else {
animationView.removeAnimation()
createView(sender: sender)
animationView.animateTo()
previousButtonTapped = sender
}
}
}
【问题讨论】:
标签: swift uitableview xib calayer nib