生活随笔
收集整理的這篇文章主要介紹了
iOS手势UIGustureRecognizer
小編覺得挺不錯的,現在分享給大家,幫大家做個參考.
UIGestureRecognizer?是一個具體手勢的基類，提供了較為簡單的手勢實現方式 ?
The concrete subclasses of?UIGestureRecognizer?are the following:
一個gesture recognizer是針對一個特定的view的（包含其subview），用UIView的方法addGestureRecognize：去關聯一個view
一個gesture recognizer是不參與UIView的事件響應鏈的
各個手勢使用時的代碼：
UITapGestureRecognizer
[cpp] view plaincopy
-?(void)viewDidLoad??{??????[super?viewDidLoad];??????????????????UITapGestureRecognizer?*tapGesture?=?[[UITapGestureRecognizer?alloc]?initWithTarget:self?action:@selector(handleGesture:)];??????if?(![tapGesture?respondsToSelector:@selector(locationInView:)])?{??????????[tapGesture?release];??????????tapGesture?=?nil;??????}else?{??????????tapGesture.delegate?=?self;??????????tapGesture.numberOfTapsRequired?=?1;???????????tapGesture.numberOfTouchesRequired?=?1;???????????[self.view?addGestureRecognizer:tapGesture];??????}??}?? [cpp] view plaincopy
-?(void)handleGesture:(UIGestureRecognizer?*)gestureRecognizer??{??????UIView?*view?=?[gestureRecognizer?view];?????????????switch?(gestureRecognizer.state)?{??????????case?UIGestureRecognizerStateEnded:{???????????????NSLog(@"======UIGestureRecognizerStateEnded?||?UIGestureRecognizerStateRecognized");??????????????break;??????????}??????????case?UIGestureRecognizerStateFailed:{???????????????NSLog(@"======UIGestureRecognizerStateFailed");??????????????break;??????????}??????????case?UIGestureRecognizerStatePossible:{???????????????NSLog(@"======UIGestureRecognizerStatePossible");??????????????break;??????????}??????????default:{??????????????NSLog(@"======Unknow?gestureRecognizer");??????????????break;??????????}??????}????}??????-?(BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer?*)gestureRecognizer{????????????????????????return?YES;??}????????-?(BOOL)gestureRecognizer:(UIGestureRecognizer?*)gestureRecognizer?shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer?*)otherGestureRecognizer{??????return?NO;??}??????????-?(BOOL)gestureRecognizer:(UIGestureRecognizer?*)gestureRecognizer?shouldReceiveTouch:(UITouch?*)touch{??????return?YES;??}??
UIPinchGestureRecognizer
[cpp] view plaincopy
-?(void)viewDidLoad??{??????[super?viewDidLoad];??????????????????UIPinchGestureRecognizer?*pinchGesture?=?[[UIPinchGestureRecognizer?alloc]?initWithTarget:self?action:@selector(handleGesture:)];??????if?(![pinchGesture?respondsToSelector:@selector(locationInView:)])?{??????????[pinchGesture?release];??????????pinchGesture?=?nil;??????}else?{??????????pinchGesture.delegate?=?self;??????????[self.view?addGestureRecognizer:?pinchGesture];??????}????}??????-?(void)handleGesture:(UIPinchGestureRecognizer?*)gestureRecognizer??{????????????UIView?*view?=?[gestureRecognizer?view];???????????????????????????????????????????????????????CGFloat?scale?=?gestureRecognizer.scale;??????NSLog(@"======scale:?%f",?scale);????????????CGFloat?velocity?=?gestureRecognizer.velocity;??????NSLog(@"======scvelocityale:?%f",?velocity);??????????????????????????switch?(gestureRecognizer.state)?{??????????case?UIGestureRecognizerStateEnded:{???????????????NSLog(@"======UIGestureRecognizerStateEnded?||?UIGestureRecognizerStateRecognized");??????????????break;??????????}??????????case?UIGestureRecognizerStateBegan:{???????????????NSLog(@"======UIGestureRecognizerStateBegan");??????????????break;??????????}??????????case?UIGestureRecognizerStateChanged:{???????????????NSLog(@"======UIGestureRecognizerStateChanged");????????????????????????????gestureRecognizer.view.transform?=?CGAffineTransformScale(gestureRecognizer.view.transform,?gestureRecognizer.scale,?gestureRecognizer.scale);??????????????gestureRecognizer.scale?=?1;?????????????????????????????break;??????????}??????????case?UIGestureRecognizerStateCancelled:{???????????????NSLog(@"======UIGestureRecognizerStateCancelled");??????????????break;??????????}??????????case?UIGestureRecognizerStateFailed:{???????????????NSLog(@"======UIGestureRecognizerStateFailed");??????????????break;??????????}??????????case?UIGestureRecognizerStatePossible:{???????????????NSLog(@"======UIGestureRecognizerStatePossible");??????????????break;??????????}??????????default:{??????????????NSLog(@"======Unknow?gestureRecognizer");??????????????break;??????????}??????}????}??
UIRotationGestureRecognizer
[cpp] view plaincopy
-?(void)viewDidLoad??{??????[super?viewDidLoad];????????????UIRotationGestureRecognizer?*rotationGesture?=?[[UIRotationGestureRecognizer?alloc]?initWithTarget:self?action:@selector(handleGesture:)];??????if?(![rotationGesture?respondsToSelector:@selector(locationInView:)])?{??????????[rotationGesture?release];??????????rotationGesture?=?nil;??????}else?{??????????rotationGesture.delegate?=?self;????????????????????[self.view?addGestureRecognizer:rotationGesture];??????}??}??????-?(void)handleGesture:(UIRotationGestureRecognizer?*)gestureRecognizer??{??????UIView?*view?=?[gestureRecognizer?view];???????????????????????????????????CGFloat?rotation?=?gestureRecognizer.rotation;??????NSLog(@"===rotation:?%f",?rotation);????????????CGFloat?velocity?=?gestureRecognizer.velocity;??????NSLog(@"======velocity:?%f",?velocity);??????????????????????????????????????switch?(gestureRecognizer.state)?{??????????case?UIGestureRecognizerStateEnded:{???????????????NSLog(@"======UIGestureRecognizerStateEnded?||?UIGestureRecognizerStateRecognized");??????????????break;??????????}??????????case?UIGestureRecognizerStateBegan:{???????????????NSLog(@"======UIGestureRecognizerStateBegan");??????????????break;??????????}??????????case?UIGestureRecognizerStateChanged:{???????????????NSLog(@"======UIGestureRecognizerStateChanged");????????????????????????????gestureRecognizer.view.transform?=?CGAffineTransformRotate(gestureRecognizer.view.transform,?gestureRecognizer.rotation);??????????????gestureRecognizer.rotation?=?0;?????????????????????????????break;??????????}??????????case?UIGestureRecognizerStateCancelled:{???????????????NSLog(@"======UIGestureRecognizerStateCancelled");??????????????break;??????????}??????????case?UIGestureRecognizerStateFailed:{???????????????NSLog(@"======UIGestureRecognizerStateFailed");??????????????break;??????????}??????????case?UIGestureRecognizerStatePossible:{???????????????NSLog(@"======UIGestureRecognizerStatePossible");??????????????break;??????????}??????????default:{??????????????NSLog(@"======Unknow?gestureRecognizer");??????????????break;??????????}??????}????}??
UISwipeGestureRecognizer
[cpp] view plaincopy
-?(void)viewDidLoad??{??????[super?viewDidLoad];??????????????????????????????????????UISwipeGestureRecognizer?*swipeGestureRight?=?[[UISwipeGestureRecognizer?alloc]?initWithTarget:self?action:@selector(handleGesture:)];??????if?(![swipeGestureRight?respondsToSelector:@selector(locationInView:)])?{??????????[swipeGestureRight?release];??????????swipeGestureRight?=?nil;??????}else?{??????????swipeGestureRight.delegate?=?self;??????????swipeGestureRight.numberOfTouchesRequired?=?1;??????????swipeGestureRight.direction?=?UISwipeGestureRecognizerDirectionRight;??????????[self.view?addGestureRecognizer:swipeGestureRight];??????}??????????????????UISwipeGestureRecognizer?*swipeGestureLeft?=?[[UISwipeGestureRecognizer?alloc]?initWithTarget:self?action:@selector(handleGesture:)];??????if?(![swipeGestureLeft?respondsToSelector:@selector(locationInView:)])?{??????????[swipeGestureLeft?release];??????????swipeGestureLeft?=?nil;??????}else?{??????????swipeGestureLeft.delegate?=?self;??????????swipeGestureLeft.numberOfTouchesRequired?=?1;??????????swipeGestureLeft.direction?=?UISwipeGestureRecognizerDirectionLeft;??????????[self.view?addGestureRecognizer:swipeGestureLeft];??????}??????????????????UISwipeGestureRecognizer?*swipeGestureUp?=?[[UISwipeGestureRecognizer?alloc]?initWithTarget:self?action:@selector(handleGesture:)];??????if?(![swipeGestureUp?respondsToSelector:@selector(locationInView:)])?{??????????[swipeGestureUp?release];??????????swipeGestureUp?=?nil;??????}else?{??????????swipeGestureUp.delegate?=?self;??????????swipeGestureUp.numberOfTouchesRequired?=?1;??????????swipeGestureUp.direction?=?UISwipeGestureRecognizerDirectionUp;??????????[self.view?addGestureRecognizer:swipeGestureUp];??????}??????????????????UISwipeGestureRecognizer?*swipeGestureDown?=?[[UISwipeGestureRecognizer?alloc]?initWithTarget:self?action:@selector(handleGesture:)];??????if?(![swipeGestureDown?respondsToSelector:@selector(locationInView:)])?{??????????[swipeGestureDown?release];??????????swipeGestureDown?=?nil;??????}else?{??????????swipeGestureDown.delegate?=?self;??????????swipeGestureDown.numberOfTouchesRequired?=?1;??????????swipeGestureDown.direction?=?UISwipeGestureRecognizerDirectionDown;??????????[self.view?addGestureRecognizer:swipeGestureDown];??????}??}????-?(void)handleGesture:(UISwipeGestureRecognizer?*)gestureRecognizer??{??????UIView?*view?=?[gestureRecognizer?view];?????????????????????UISwipeGestureRecognizerDirection?direction?=?gestureRecognizer.direction;??????switch?(direction)?{??????????case?UISwipeGestureRecognizerDirectionRight:??????????{??????????????NSLog(@"direction==UISwipeGestureRecognizerDirectionRight");??????????????break;??????????}??????????case?UISwipeGestureRecognizerDirectionLeft:??????????{??????????????NSLog(@"direction==UISwipeGestureRecognizerDirectionLeft");??????????????break;??????????}??????????case?UISwipeGestureRecognizerDirectionUp:??????????{??????????????NSLog(@"direction==UISwipeGestureRecognizerDirectionUp");??????????????break;??????????}??????????case?UISwipeGestureRecognizerDirectionDown:??????????{??????????????NSLog(@"direction==UISwipeGestureRecognizerDirectionDown");??????????????break;??????????}??????????default:??????????????break;??????}????????????????????????????switch?(gestureRecognizer.state)?{??????????case?UIGestureRecognizerStateEnded:{???????????????NSLog(@"======UIGestureRecognizerStateEnded?||?UIGestureRecognizerStateRecognized");??????????????break;??????????}??????????default:{??????????????NSLog(@"======Unknow?gestureRecognizer");??????????????break;??????????}??????}????}?? UIPanGestureRecognizer
[cpp] view plaincopy
-?(void)viewDidLoad??{??????[super?viewDidLoad];??????????????????UIView?*view?=?[[UIView?alloc]initWithFrame:CGRectMake(0,?0,?100,?100)];??????view.backgroundColor?=?[UIColor?blueColor];??????[self.view?addSubview:view];??????????????????UIPanGestureRecognizer?*panPressGesture?=?[[UIPanGestureRecognizer?alloc]?initWithTarget:self?action:@selector(handleGesture:)];??????if?(![panPressGesture?respondsToSelector:@selector(locationInView:)])?{??????????[panPressGesture?release];??????????panPressGesture?=?nil;??????}else?{??????????panPressGesture.delegate?=?self;??????????panPressGesture.maximumNumberOfTouches?=?NSUIntegerMax;??????????????????????panPressGesture.minimumNumberOfTouches?=?1;??????????[view?addGestureRecognizer:panPressGesture];??????}??}??????-?(void)handleGesture:(UIPanGestureRecognizer?*)gestureRecognizer??{??????UIView?*view?=?[gestureRecognizer?view];?????????????????????switch?(gestureRecognizer.state)?{??????????case?UIGestureRecognizerStateBegan:{???????????????NSLog(@"======UIGestureRecognizerStateBegan");??????????????break;??????????}??????????case?UIGestureRecognizerStateChanged:{???????????????NSLog(@"======UIGestureRecognizerStateChanged");???????????????????????????????????????????????????????????????CGPoint?translation?=?[gestureRecognizer?translationInView:self.view];??????????????view.center?=?CGPointMake(gestureRecognizer.view.center.x?+?translation.x,?gestureRecognizer.view.center.y?+?translation.y);??????????????[gestureRecognizer?setTranslation:CGPointMake(0,?0)?inView:self.view];??????????????break;??????????}??????????case?UIGestureRecognizerStateCancelled:{???????????????NSLog(@"======UIGestureRecognizerStateCancelled");??????????????break;??????????}??????????case?UIGestureRecognizerStateFailed:{???????????????NSLog(@"======UIGestureRecognizerStateFailed");??????????????break;??????????}??????????case?UIGestureRecognizerStatePossible:{???????????????NSLog(@"======UIGestureRecognizerStatePossible");??????????????break;??????????}??????????case?UIGestureRecognizerStateEnded:{???????????????????????????????????????????????????????????????????NSLog(@"======UIGestureRecognizerStateEnded?||?UIGestureRecognizerStateRecognized");????????????????????????????CGPoint?velocity?=?[gestureRecognizer?velocityInView:self.view];??????????????CGFloat?magnitude?=?sqrtf((velocity.x?*?velocity.x)?+?(velocity.y?*?velocity.y));??????????????????????????????????????????CGFloat?slideMult?=?magnitude?/?200;????????????????????????????NSLog(@"magnitude:?%f,?slideMult:?%f",?magnitude,?slideMult);??????????????float?slideFactor?=?0.1?*?slideMult;???????????????????????????????????????????CGPoint?finalPoint?=?CGPointMake(view.center.x?+?(velocity.x?*?slideFactor),???????????????????????????????????????????????view.center.y?+?(velocity.y?*?slideFactor));??????????????????????????????????????????finalPoint.x?=?MIN(MAX(finalPoint.x,?0),?self.view.bounds.size.width);??????????????finalPoint.y?=?MIN(MAX(finalPoint.y,?0),?self.view.bounds.size.height);????????????????????????????[UIView?animateWithDuration:slideFactor*2?delay:0?options:UIViewAnimationOptionCurveEaseOut?animations:^{??????????????????view.center?=?finalPoint;????????????????}?completion:nil];????????????????????????????break;??????????}??????????default:{??????????????NSLog(@"======Unknow?gestureRecognizer");??????????????break;??????????}??????}????}?? UILongPressGestureRecognizer
[cpp] view plaincopy
-?(void)viewDidLoad??{??????[super?viewDidLoad];????????????UILongPressGestureRecognizer?*longPressGesture?=?[[UILongPressGestureRecognizer?alloc]?initWithTarget:self?action:@selector(handleGesture:)];??????if?(![longPressGesture?respondsToSelector:@selector(locationInView:)])?{??????????[longPressGesture?release];??????????longPressGesture?=?nil;??????}else?{??????????longPressGesture.delegate?=?self;??????????longPressGesture.numberOfTapsRequired?=?0;????????????????longPressGesture.minimumPressDuration?=?0.1f;??????????????longPressGesture.numberOfTouchesRequired?=?1;?????????????longPressGesture.allowableMovement?=?10;??????????????????[self.view?addGestureRecognizer:longPressGesture];??????}??}??????-?(void)handleGesture:(UIGestureRecognizer?*)gestureRecognizer??{??????UIView?*view?=?[gestureRecognizer?view];?????????????switch?(gestureRecognizer.state)?{??????????case?UIGestureRecognizerStateEnded:{???????????????NSLog(@"======UIGestureRecognizerStateEnded?||?UIGestureRecognizerStateRecognized");??????????????break;??????????}??????????case?UIGestureRecognizerStateBegan:{???????????????NSLog(@"======UIGestureRecognizerStateBegan");??????????????break;??????????}??????????case?UIGestureRecognizerStateChanged:{???????????????NSLog(@"======UIGestureRecognizerStateChanged");??????????????break;??????????}??????????case?UIGestureRecognizerStateCancelled:{???????????????NSLog(@"======UIGestureRecognizerStateCancelled");??????????????break;??????????}??????????case?UIGestureRecognizerStateFailed:{???????????????NSLog(@"======UIGestureRecognizerStateFailed");??????????????break;??????????}??????????case?UIGestureRecognizerStatePossible:{???????????????NSLog(@"======UIGestureRecognizerStatePossible");??????????????break;??????????}??????????default:{??????????????NSLog(@"======Unknow?gestureRecognizer");??????????????break;??????????}??????}????}??????-?(BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer?*)gestureRecognizer{??????CGPoint?currentPoint?=?[gestureRecognizer?locationInView:self.view];??????if?(CGRectContainsPoint(CGRectMake(0,?0,?100,?100),?currentPoint)?)?{??????????return?YES;??????}????????????return?NO;??}????????-?(BOOL)gestureRecognizer:(UIGestureRecognizer?*)gestureRecognizer?shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer?*)otherGestureRecognizer{??????return?NO;??}??????????-?(BOOL)gestureRecognizer:(UIGestureRecognizer?*)gestureRecognizer?shouldReceiveTouch:(UITouch?*)touch{??????return?YES;??}?
轉載于:https://www.cnblogs.com/xukunhenwuliao/p/3576249.html
總結
以上是生活随笔為你收集整理的iOS手势UIGustureRecognizer的全部內容，希望文章能夠幫你解決所遇到的問題。
如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。
