Button Swift 3 iOS-覆盖HitTest,不允许子视图在其外部接收触摸';s SuperView';界
我有一个collectionView单元格,它有一个来自故事板的imageView和一个以编程方式添加的deleteButton(红色X),该按钮超出了单元格的边界Button Swift 3 iOS-覆盖HitTest,不允许子视图在其外部接收触摸';s SuperView';界,button,view,cgrect,bounds,touches,Button,View,Cgrect,Bounds,Touches,我有一个collectionView单元格,它有一个来自故事板的imageView和一个以编程方式添加的deleteButton(红色X),该按钮超出了单元格的边界X:-12,y:-18。我试图覆盖hitTest以接收单元格边界以外的触摸,但它不起作用。但是,当按钮(或其任何部分)在单元格边界内时,我能够触发按钮上的事件。在故事板的imageView中,我已选中IsUserInActionEnabled,在单元格类中,我已在deleteButton和单元格本身上启用它。我在单元格和imageVi
X:-12,y:-18
。我试图覆盖hitTest
以接收单元格边界以外的触摸,但它不起作用。但是,当按钮(或其任何部分)在单元格边界内时,我能够触发按钮上的事件。在故事板的imageView中,我已选中IsUserInActionEnabled,在单元格类中,我已在deleteButton和单元格本身上启用它。我在单元格和imageView上还有clipsToBounds=false
我确实注意到,当我打印出子视图时,唯一打印的视图是imageView。也许这就是问题所在
代码如下:
class MyCell: UICollectionViewCell {
@IBOutlet weak var imageView: UIImageView!
var deleteButton: UIButton!
var deleteButtonImg: UIImage!
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
deleteButton = UIButton(frame: CGRect(x: -12, y: -18, width: frame.size.width/4, height: frame.size.width/4))
deleteButtonImg = UIImage(named: "red-x")!
deleteButton.setImage(deleteButtonImg, for: .normal)
self.isUserInteractionEnabled = true
deleteButton.isUserInteractionEnabled = true
contentView.addSubview(deleteButton)
}
override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
if (!self.clipsToBounds && !self.isHidden && self.alpha > 0.0) {
for view in self.subviews.reversed() {
print(".......\(subviews.description)")
let subPoint = view.convert(point, from: self)
let result = view.hitTest(subPoint, with: event)
if (result != nil){
return result
}
}
}
return nil;
}
尽管我正在覆盖命中测试,为什么我不能接收到触碰事件