我介绍了一个视图控制器,并且其中有一个子视图。我在子视图上添加了滑动手势。滑动手势未调用。取而代之的是,所提供的视图控制器试图自行关闭,即关闭。如何覆盖要由子视图而不是 super 视图识别的滑动手势。
当我在静态视图控制器上实现滑动时,它可以按预期工作。
import UIKit
class ViewController: UIViewController {
@IBOutlet weak var viewSwipe: UIView!
override func viewDidLoad() {
super.viewDidLoad()
let swipeUp = UISwipeGestureRecognizer(target: self, action: #selector(swipeUp(_:)))
swipeUp.direction = UISwipeGestureRecognizer.Direction.up
self.viewSwipe.addGestureRecognizer(swipeUp)
let swipedown = UISwipeGestureRecognizer(target: self, action: #selector(swipeDown(_:)))
swipedown.direction = UISwipeGestureRecognizer.Direction.down
self.viewSwipe.addGestureRecognizer(swipedown)
}
@objc func swipeUp(_ gesture: UISwipeGestureRecognizer) {
print("swiped up")
}
@objc func swipeDown(_ gesture: UISwipeGestureRecognizer) {
print("swiped down")
}
}
红色区域需要刷卡
最佳答案
仅在视图中添加Gesture
,您还可以在手势上添加任何方向。我在这里放了一个小示例,您可以为您的问题参考此代码。
正确方向获取1,左侧方向获取2
示例:
import UIKit
class ViewController: UIViewController,UIGestureRecognizerDelegate{
@IBOutlet weak var viewGray: UIView!
@IBOutlet weak var viewRed: UIView!
override func viewDidLoad() {
super.viewDidLoad()
self.navigationController?.interactivePopGestureRecognizer?.delegate = self
let directions: [UISwipeGestureRecognizer.Direction] = [.right, .left]
for direction in directions {
let gesture = UISwipeGestureRecognizer(target: self, action: #selector(handleSwipe(sender:)))
gesture.direction = direction
gesture.delegate = self
self.viewRed.addGestureRecognizer(gesture)
}
}
@objc func handleSwipe(sender: UISwipeGestureRecognizer) {
print(sender.direction)
}
func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -> Bool {
return true
}
func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldBeRequiredToFailBy otherGestureRecognizer: UIGestureRecognizer) -> Bool {
return true
}
}
关于ios - 当前 View Controller 内的 subview 上未调用滑动手势,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/60090877/