ios事件-触摸事件2(手势 和 pointInSide()、hitTest()、touchesBegan()、touchesMoved()、touchesEnded()、touchesCancelled 当手指离开屏幕时,CustomerGesture的touchesEnded()会被调用。 当手指离开屏幕时,RedView的touchesEnded()会被调用。 当手指离开屏幕时, touchesEnded()的调用顺序是:CustomerGesture->RedView。 当手指离开屏幕时,CustomerGesture 的touchesEnded:withEvent:方法和GestureVC的panActiona方法会被调用。
ios事件-触摸事件3(UIButton 和 pointInSide()、hitTest()、touchesBegan()、touchesMoved()、touchesEnded()、touchesCancelled UIControlEventTouchUpInside表示@selector(clicka:withEvent:)方法在Button的touchesEnded:withEvent:方法之后调用。 (NSSet<UITouch *> *)touches withEvent:(UIEvent *)event { NSLog(@"vc, %s", __func__); [super touchesEnded :(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event { NSLog(@"%s", __func__); [super touchesEnded :withEvent:] 说明:button的UIControlEventTouchUpInside事件的识别,是通过touchesBegan和touchesEnded()来识别。
self.dragging ) { [[self nextResponder] touchesBegan:touches withEvent:event]; } } -(void) touchesEnded :(NSSet *)touches withEvent:(UIEvent *)event{ [super touchesEnded:touches withEvent:event]; self.dragging ) { [[self nextResponder] touchesEnded:touches withEvent:event]; } }
touchesBegan: withEvent: / touchesMoved: withEvent: / touchesEnded: withEvent: 等只能被UIView捕获(如有问题请指出对请指出 UIImageView 时,当点击时UIScrollView 或 UIImageView 会截获touch事件,导致touchesBegan: withEvent:/touchesMoved: withEvent:/touchesEnded ) 可以通过写UIScrollView 或 UIImageView 的category 重写touchesBegan: withEvent: / touchesMoved: withEvent: / touchesEnded
自定义一个类继承UIScrollView,将touchesEnded事件发送出去。 PageScrollView : UIScrollView { } @end #import "PageScrollView.h" @implementation PageScrollView - (void) touchesEnded self.dragging) { [self.nextResponder touchesEnded: touches withEvent:event]; } [super touchesEnded
self.dragging) { //run at ios5 ,no effect; [self.nextResponder touchesEnded: touches "); } [super touchesEnded: touches withEvent: event]; } @end 以上代码只是调用一下自定义的Delegate 但是这里注意一下 [self.nextResponder touchesEnded:touches withEvent:event];这句话的意思是将UIScrollView上的单击事件往下传递,传递到它的父 这样如果父UIView上实现了touchesEnded这个方法,也会响应到。但是这样的写法经过测试在IOS5.0以前的版本可以。但IOS5以后的(包括5)这不能往下传递,这里我也不知道为什么。 )touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{ NSLog(@"view touch began"); } -(void)touchesEnded
event; -(void)touchesMoved:(NSSet*)touches withEvent:(UIEvent *)event; -(void)touchesEnded 例如: – ( void )touchesEnded:(NSSet * )touches withEvent:(UIEvent * ) event { UITouch 检测tapCount可以放在touchesBegan也可以touchesEnded,不过一般后者跟准确,因为touchesEnded可以保证所有的手指都已经离开屏幕,这样就不会把轻击动作和按下拖动等动作混淆 例如: – ( void )touchesEnded:(NSSet * )touches withEvent:(UIEvent * ) event { UITouch – ( void )touchesEnded:(NSSet * )touches withEvent:(UIEvent * ) event { UITouch
self.dragging ) { [[self nextResponder] touchesBegan:touches withEvent:event]; } } -(void) touchesEnded :(NSSet *)touches withEvent:(UIEvent *)event{ [super touchesEnded:touches withEvent:event]; if self.dragging ) { [[self nextResponder] touchesEnded:touches withEvent:event]; } } 使用重写过的
touchesMoved:touches withEvent:event]; [super touchesMoved:touches withEvent:event]; } -(void)touchesEnded :(NSSet *)touches withEvent:(UIEvent *)event { [[self nextResponder] touchesEnded:touches withEvent :event]; [super touchesEnded:touches withEvent:event]; } 2.hittest - (UIView *)hitTest:(CGPoint)
self.dragging ) { [[self nextResponder] touchesBegan:touches withEvent:event]; } } -(void) touchesEnded :(NSSet *)touches withEvent:(UIEvent *)event{ [super touchesEnded:touches withEvent:event]; if self.dragging ) { [[self nextResponder] touchesEnded:touches withEvent:event]; } } 之後建立
event; -(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event; -(void)touchesEnded 例如: -(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [touches 检测tapCount可以放在touchesBegan也可以touchesEnded,不过一般后者跟准确,因为touchesEnded可以保证所有的手指都已经离开屏幕,这样就不会把轻击动作和按下拖动等动作混淆 例如: -(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [touches -(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [touches anyObject
如果我想要在用户点击后立即运行代码,我就不得不自己写一个好的UIButton子类,这样我就可以重写一些方法,即 -touchesBegan:withEvent: 和 -touchesEnded:withEvent *)event { // 自定义一些按钮第一次被点击时要运行的代码 [super touchesBegan:touches withEvent:event]; } - (void)touchesEnded :(NSSet *)touches withEvent:(UIEvent *)event { // 自定义一些按钮不再被点击时要运行的代码 [super touchesEnded:touches 这次代码放在 -touchesEnded:withEvent:中。 forKey:@"rotate"]; } [super touchesBegan:touches withEvent:event]; } // 在用户离开手指时立即调用 - (void)touchesEnded
touchesMoved:touches withEvent:event]; [super touchesMoved:touches withEvent:event]; } - (void)touchesEnded :(NSSet *)touches withEvent:(UIEvent *)event { [[self nextResponder] touchesEnded:touches withEvent :event]; [super touchesEnded:touches withEvent:event]; } // 然后在要回收键盘的界面,导入这个类 #import "UIScrollView
{ print(“touchesMoved”); } override func touchesEnded(_ touches:Set<UITouch>,with event:UIEvent?) { print(“touchesEnded”); } override func touchesCancelled(_ touches:Set<UITouch>, with event:UIEvent
withEvent:(UIEvent *)event; - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event; - (void)touchesEnded 在view添加单击手势之后,原来的touchesEnded方法就无效了。touchesBegin 还是生效的。 2.在pointInside中创建一个 UIBezierPath,通过 [path containsPoint: point]来判断当前的点是否在圆内,pointInside的返回值直接影响到touchesEnded 的调用,如果返回NO是不会调用touchesEnded事件的。 - (void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event { UIAlertView * alert
touches withEvent:(nullable UIEvent *)event{ [super touchesMoved:touches withEvent:event]; } - (void)touchesEnded :(NSSet<UITouch *> *)touches withEvent:(nullable UIEvent *)event{ [super touchesEnded:touches withEvent
withEvent:event]; [self performSelector:@selector(setDefault) withObject:nil afterDelay:0.1]; } -(void)touchesEnded :(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{ [super touchesEnded:touches withEvent:event
:(UIEvent *)event{ [super touchesBegan:touches withEvent:event]; //做你想要的操作 } -(void) touchesEnded :(NSSet *)touches withEvent:(UIEvent *)event{ [super touchesEnded:touches withEvent:event];
创建UIImageView * linBgPointImageView slide上面的刻度 创建UIImageView * touchImageView slide上面拖动的点 实现touchesEnded 方法比较麻烦,代码如下: -(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{ NSInteger allLenght =
这个属性设置手势识别结束后,是立刻发送touchesEnded或pressesEnded消息到事件传递链或者等待一个很短的时间后,如果没有接收到新的手势识别任务,再发送。 所以就不会在调用touchesMoved触发事件了 而delaysTouchesEnded属性默认是YES,当设为YES时在手势识别结束后,会等待一个很短的时间,如果没有接收到新的手势识别任务,才会发送touchesEnded 消息到事件传递链,设置为NO之后会立刻发送touchesEnded消息到事件传递链我们同样来看一个例子: - (void)viewDidLoad { [super viewDidLoad]; tap.delaysTouchesEnded = NO; 我们发现我们每点击一下,都会立即发送touchesEnded消息到事件传递链。 – touchesBegan:withEvent: – touchesMoved:withEvent: – touchesEnded:withEvent: - touchesCancelled