Swift 3中的UILongPressGestureRecognizer

import UIKit

class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let longPressGesture = UILongPressGestureRecognizer(target: self, action: #selector(handleLongPress(_:)))
        longPressGesture.minimumPressDuration = 0.5
        longPressGesture.numberOfTouchesRequired = 1
        
        let view = UIView(frame: CGRect(x: 100, y: 100, width: 100, height: 100))
        view.backgroundColor = UIColor.red
        view.addGestureRecognizer(longPressGesture)
        
        self.view.addSubview(view)
    }
    
    @objc func handleLongPress(_ gesture: UILongPressGestureRecognizer) {
        if gesture.state == .began {
            // 长按手势开始时的操作
            print("Long press began")
        } else if gesture.state == .ended {
            // 长按手势结束时的操作
            print("Long press ended")
        }
    }
}