Question

我想处理 UIButton 触摸结束时发生的事件。我知道UIControl有一些实现触摸的事件（UIControlEventTouchDown，UIControlEventTouchCancel等）。但除了 UIControlEventTouchDown 和 UIControlEventTouchUpInside 之外，我无法抓住其中任何一个。

我的按钮是一些UIView的子视图。 UIView已将 userInteractionEnabled 属性设置为 YES 。

怎么了？

Answer 1

您可以根据ControlEvents

为按钮设置“操作目标”

- (void)addTarget:(id)target action:(SEL)action forControlEvents:(UIControlEvents)controlEvents;

示例：

[yourButton addTarget:self 
           action:@selector(methodTouchDown:)
 forControlEvents:UIControlEventTouchDown];

[yourButton addTarget:self 
           action:@selector(methodTouchUpInside:)
 forControlEvents: UIControlEventTouchUpInside];

-(void)methodTouchDown:(id)sender{

   NSLog(@"TouchDown");
}
-(void)methodTouchUpInside:(id)sender{

  NSLog(@"TouchUpInside");
}

Answer 2

您需要创建自己的扩展UIButton的自定义类。你的头文件应该是这样的。

@interface customButton : UIButton
{
}

- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event;

然后制作您的实施文件

Answer 3

我认为这更容易

UILongPressGestureRecognizer *longPressOnButton = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPressOnButton:)];
longPressOnButton.delegate = self;
btn.userInteractionEnabled = YES;
[btn addGestureRecognizer:longPressOnButton];



- (void)longPressOnButton:(UILongPressGestureRecognizer*)gesture
{
    // When you start touch the button
    if (gesture.state == UIGestureRecognizerStateBegan)
    {
       //start recording
    }
    // When you stop touch the button
    if (gesture.state == UIGestureRecognizerStateEnded)
    {
        //end recording
    }
}

Answer 4

只需为UIButton添加IBOutlets，其中包含事件TouchDown:和主要操作Triggered:

- (IBAction)touchDown:(id)sender {
    NSLog(@"This will trigger when button is Touched");
}

- (IBAction)primaryActionTriggered:(id)sender {
    NSLog(@"This will trigger Only when touch end within Button Boundary (not Frame)");
}

Answer 5

@Ramshad在 Swift 3.0 语法中接受了answer 使用以下 UIControl 类

的方法

open func addTarget(_ target: Any?, action: Selector, for controlEvents: UIControlEvents)

示例：

myButton.addTarget(self, action: #selector(MyViewController.touchDownEvent), for: .touchDown)
myButton.addTarget(self, action: #selector(MyViewController.touchUpEvent), for: [.touchUpInside, .touchUpOutside])

func touchDownEvent(_ sender: AnyObject) {
    print("TouchDown")
}

func touchUpEvent(_ sender: AnyObject) {
    print("TouchUp")
}

Answer 6

Swift 3.0版本：

 let btn = UIButton(...)

 btn.addTarget(self, action: #selector(MyView.onTap(_:)), for: .touchUpInside)

 func onTap(_ sender: AnyObject) -> Void {

}

如何检测UIButton的触摸结束事件？

6 个答案: