在iOS开发中,可以通过以下几种方式来检测UIViewController外部的轻触/触摸:
示例代码:
// 创建手势识别器
let tapGesture = UITapGestureRecognizer(target: self, action: #selector(handleTap(_:)))
// 将手势识别器添加到view上
self.view.addGestureRecognizer(tapGesture)
// 手势回调方法
@objc func handleTap(_ gesture: UITapGestureRecognizer) {
// 处理轻触事件
}
示例代码:
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
super.touchesBegan(touches, with: event)
// 处理触摸事件
}
示例代码:
class CustomWindow: UIWindow {
override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
let result = super.hitTest(point, with: event)
if result == self.rootViewController?.view {
// 触摸点在UIViewController的view外部
// 处理触摸事件
}
return result
}
}
// 在AppDelegate中设置自定义窗口
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
self.window = CustomWindow(frame: UIScreen.main.bounds)
self.window?.rootViewController = YourViewController()
self.window?.makeKeyAndVisible()
return true
}
以上是几种常见的检测UIViewController外部轻触/触摸的方法。根据具体需求和场景,选择适合的方法来实现相应的功能。
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