二、UIReponder类 UIResponder内部提供了一下方法来处理事件,父类是NSObject 1、触摸事件 1)手指按下事件 - (void)touchesBegan:(NSSet *)touchesForGestureRecognizer:(UIGestureRecognizer *)gesture; 五、实例 1、获取触摸点的坐标 - (void)touchesBegan...:(NSSet *)touches withEvent:(UIEvent *)event{ [super touchesBegan:touches withEvent:event
ios touchesBegan不触发 今天简单写了一个touchesBegan,发现无法触发,点击无效,网上找了半天没有效果。
eg:写一个category类目 UIScrollView + Event – (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent...*)event { [super touchesBegan:touches withEvent:event]; [[[self nextResponder] nextResponder...] touchesBegan:touches withEvent:event]; } 应用场景: 操作:点击ScrollView上的textFiledView -> 再点击ScrollView...2.写一个category类目 UIScrollView + Event.h – (void)touchesBegan:(NSSet *)touches withEvent:(...] touchesBegan:touches withEvent:event]; } 到此完美解决。
touchesBegan: withEvent: / touchesMoved: withEvent: / touchesEnded: withEvent: 等只能被UIView捕获(如有问题请指出对请指出...,路过的大牛请勿喷),当我们创建 UIScrollView 或 UIImageView 时,当点击时UIScrollView 或 UIImageView 会截获touch事件,导致touchesBegan...//#import "UIScrollView+UITouch.h"@implementation UIScrollView (UITouch)- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{ // 选其一即可 [super touchesBegan:touches withEvent:event]...;// [[self nextResponder] touchesBegan:touches withEvent:event];}@end 发布者:全栈程序员栈长,转载请注明出处:https://
开始,在当前view中添加一个UITextView ,然后添加- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event函数,可怎么也触发不了...首先说原因吧,你把UITextView 加载到当前view上,然后在当前文件中写函数(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event...,手势触摸时,其实触发的是当前view重构父类的touchesbegan函数,而加载UITextView时,UITextView 其实也有相应的touchesbegan函数,UITextView 继承UIScrollView...self = [super initWithFrame:frame]; if (self) { } return self; } – (void)touchesBegan...– TITLE_HEIGHT – NAV_HEIGHT*2)]; [self.view addSubview:textView]; 这样当你手势触发的时候,就会触发MytextView 中的touchesBegan
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { [self.view endEditing:YES];...} 但是addSubview的UIScorllView并不能直接响应touchesBegan和touchesEnd事件。...@interface myScrollView : UIScrollView @end -(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent...*)event{ [super touchesBegan:touches withEvent:event]; if ( !...self.dragging ) { [[self nextResponder] touchesBegan:touches withEvent:event]; } } -(void)
网上查了一下 原来UIScrollView是没有继承touchesBegan方法的 所以要自己重写UIScrollView 然后继承 touchesBegan 等方法才可以用 重写 UIScrollView...super initWithFrame:frame]; if (self) { // Initialization code } return self; } -(void) touchesBegan...:(NSSet *)touches withEvent:(UIEvent *)event{ [super touchesBegan:touches withEvent:event];
scrollView 本身继承 了 touch 的响应 事件,要从新自定义 scrollView 的 响应事件。
重写touch事件 – (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { [super touchesBegan
根据不通的触摸状态,程序会调用相应的处理函数,这些函数包括以下几个: -(void)touchesBegan:(NSSet*)touches withEvent:(UIEvent...event; -(void)touchesCancelled:(NSSet *)toucheswithEvent:(UIEvent *)event; 当手指接触屏幕时,就会调用touchesBegan...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: CGPoint originalLocation; – ( void )touchesBegan:(NSSet * )touches withEvent:(UIEvent...currentLocation.y – originalLocation.y; self.view.frame = frame; } 这里先在touchesBegan
touchesBegan 跟 touchedEnd 沒有提供給 UIScrollViewDelegate 所以要自己建立一個繼承自 UIScrollView 的 class 重寫這兩個...method myScrollView.h @interface myScrollView : UIScrollView @end myScrollView.m -(void) touchesBegan...:(NSSet *)touches withEvent:(UIEvent *)event{ [super touchesBegan:touches withEvent:event]; if...self.dragging ) { [[self nextResponder] touchesBegan:touches withEvent:event]; } } -(void
今天做了个测试,看看tableView如果实现了touchesBegan方法和实现了didSelectRowAtIndexPath点击的时候会去实现哪一个? 答案是touchesBegan。...先附上测试的函数 -(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { NSLog(@"---...NSIndexPath *)indexPath { NSLog(@"llllll"); } 红色的代表tableView,蓝色的代表cell,我不管是点击cell还是点击tableView,监听到的方法都是touchesBegan...下面是输出结果,输出的都是touchesBegan中的方法 这个是视图 而当tableView没有实现touchesBegan,当我们点击cell的时候是有反应的 以下是输出结果 视图如下所示
CGContextSetLineWidth(context, 5) CGContextAddPath(context, path) CGContextStrokePath(context) } override func touchesBegan
新建一个类继承自UIScrollView 并重写下面的方法 -(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{...[super touchesBegan:touches withEvent:event]; if ( !...self.dragging ) { [[self nextResponder] touchesBegan:touches withEvent:event]; } }
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { [[self nextResponder] touchesBegan...:touches withEvent:event]; [super touchesBegan:touches withEvent:event]; } -(void)touchesMoved:(
– (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{ CGPoint point = [[
这几天做的时候碰到了这么个问题,就是当我们把ScrollView添加到控制器的view上,或者添加到UICollectionViewCell上面,scrollView的父视图的touchesBegan都无法响应...而当我们把scrollView的userInteractionEnabled改成false的时候,父视图的touchesBegan就可以执行。这里记录下。...还有就是我们如果自定义了一个UIScrollView,然后重写touchesBegan方法,事件是可以传递进去的。...还有就是当我们自定义了UIScrollView,往里面添加单击手势的时候,只会响应单击手势的点击,而不会响应touchesBegan方法。
override func touchesBegan(touches: Set, withEvent event: UIEvent) { var p = touches.anyObject
ios事件-触摸事件2(手势 和 pointInSide()、hitTest()、touchesBegan()、touchesMoved()、touchesEnded()、touchesCancelled...所以如果你在你自定义的手势里面的重写的touchesBegan: withEvent:方法中不调用[super touchesBegan:touches withEvent:event];时,手势就无法识别...事件响应:touchesBegan()的调用顺序是:CustomerGesture->RedView。 当手指离开屏幕时,CustomerGesture的touchesEnded()会被调用。...事件响应:touchesBegan()的调用顺序是:CustomerGesture->RedView。...事件响应:touchesBegan()的调用顺序是:CustomerGesture->RedView。
mV.backgroundColor = UIColor.red self.view.addSubview(mV) } override func touchesBegan
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