想要識別
UIGestureRecognizer本身的 touchesBegan蟹倾、touchesMoved疚脐、touchesEnded征候、touchesEnded匠襟。
需要自定義
UIGestureRecognizer的同時(shí)，
導(dǎo)入import UIKit.UIGestureRecognizerSubclass就可以了脱柱。
import UIKit
import UIKit.UIGestureRecognizerSubclass
class GestureRecognizer: UIGestureRecognizer {
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent) {
<#code#>
}
override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent) {
<#code#>
}
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent) {
<#code#>
}
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent) {
<#code#>
}
}
