UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapTapTap:)];
[self.view1 addGestureRecognizer:tapGesture];
[self.view2 addGestureRecognizer:tapGesture];
[tapGesture release];
在上面的代码中，只能识别view2上的点击。如果我注释掉第三行，那么点击view1会被识别。如果我是对的，你只能使用手势识别器一次，我不确定这是一个错误还是它只是需要一些更多的文档。
当前回答
通过'<UIScrollViewDelegate>'重写类
在.m类中使用这个方法:
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer{
return YES;
}
此方法将帮助您在一个视图上启用多个滑动。
其他回答
通过'<UIScrollViewDelegate>'重写类
在.m类中使用这个方法:
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer{
return YES;
}
此方法将帮助您在一个视图上启用多个滑动。
我们可以做一些像这样的事情，这很简单
1)在控制器中创建如下函数(此函数将返回GestureRecognizer)
-(UITapGestureRecognizer*)setRecognizer{
UITapGestureRecognizer *gestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(openProfile)];
[gestureRecognizer setNumberOfTapsRequired:1];
return gestureRecognizer;
}
2)现在在多个视图中设置这个识别器
[self.view1 addGestureRecognizer:[self setRecognizer]];
[self.view2 addGestureRecognizer:[self setRecognizer]];
您可以在视图上创建一个通用扩展来轻松地添加手势识别器。 这只是一个例子，但它可以是这样的
extension UIView {
func setGestureRecognizer<Gesture: UIGestureRecognizer>(of type: Gesture.Type, target: Any, actionSelector: Selector, swipeDirection: UISwipeGestureRecognizer.Direction? = nil, numOfTaps: Int = 1) {
let getRecognizer = type.init(target: target, action: actionSelector)
switch getRecognizer {
case let swipeGesture as UISwipeGestureRecognizer:
guard let direction = swipeDirection else { return }
swipeGesture.direction = direction
self.addGestureRecognizer(swipeGesture)
case let tapGesture as UITapGestureRecognizer:
tapGesture.numberOfTapsRequired = numOfTaps
self.addGestureRecognizer(tapGesture)
default:
self.addGestureRecognizer(getRecognizer)
}
}
}
要在视图上添加一个2点识别器，你只需调用:
let actionSelector = #selector(actionToExecute)
view.setGestureRecognizer(of: UITapGestureRecognizer.self, target: self, actionSelector: actionSelector, numOfTaps: 2)
您还可以轻松地添加一个滑动识别器
view.setGestureRecognizer(of: UISwipeGestureRecognizer.self, target: self, actionSelector: actionSelector, swipeDirection: .down)
等等。 只需要记住，目标必须链接到选择器。
我使用下面的方法来解决这个问题。
for (UIButton *aButton in myButtons) {
UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(handleLongPress:)];
longPress.minimumPressDuration=1.0;
[aButton addGestureRecognizer:longPress];
[longPress release];
}
然后在我的handleLongPress方法中，我只是设置一个UIButton等于手势识别器的视图，并根据该按钮分支我所做的事情
- (void)handleLongPress:(UILongPressGestureRecognizer*)gesture {
if ( gesture.state == UIGestureRecognizerStateEnded ) {
UIButton *whichButton=(UIButton *)[gesture view];
selectedButton=(UIButton *)[gesture view];
....
}
如果你有固定的视角，我建议你这样做
[self.view1 addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapTapTap:)]];
[self.view2 addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapTapTap:)]];
这样可以减少多个不同的无用变量
