ios gestures

Ios gestures are interesting. ios gestures are interesting.Ios gestures are very interesting.I. Overview For iPhone touch screen processing, before 3.2UIResponderThe following four methods are provided: -(Void) touchesBegan :( NSSet *) touches withEvent :( UIEvent *) event-(

Seven gestures for IOS and seven gestures for IOS Today, we will introduce seven types of gestures in IOS, which are often used in development. So let's talk about the seven gestures in

IOS gestures and ios gestures In IOS, gestures can give users a good experience. Therefore, it is necessary to understand gestures. (There are many notable points in setting

centerviewcontentrect = self.centerContainerView.frame; The original meaning is to place the gesture recognition of the trigger drawer on the entire screen.CGRect centerviewcontentrect = CGRectMake (0, 0, self.centerContainerView.frame.size.height); The modified meaning is to put the trigger open drawer gesture recognition on the left side of the screen width 50, high for the screen height of the rectCenterviewcontentrect = Cgrectintersection (centerviewcontentrect,self.childcontrollercontainer

Talking about gestures and touch in iOS, talking about iOS gesture touch I. response chain Various operation events will be encountered in IOS development, and these events can be responded through the program. First, when an event responds, you must know who will respond to the event. In

]; // drag gesture Trigger method -(void) Pangesture: (ID) sender{ *pangesture = sender; = [Pangesture translationInView:self.view]; // Your code }5. pinch gesture (pinchgesturerecognizer)*pangesture = [[Uipangesturerecognizer alloc] initwithtarget:self action: @selector (pangesture:)];[ Self.view Addgesturerecognizer:pangesture]; // drag gesture Trigger method -(void) Pangesture: (ID) sender{ *pangesture = sender; = [Pangesture translationInView:self.view]; // Your code }

nextresponder = [self nextresponder];if ([Nextresponder Iskindofclass:[uiviewcontroller class]]) {return nextresponder;} else if ([Nextresponder Iskindofclass:[uiview class]]) {return [Nextresponder Traverseresponderchainforuiviewcontroller];} else {return nil;}}Vi. Event DeliveryWhen a sub-view needs to receive a click event, its parent view also needs to receive the Click event, what to do with it:Under normal circumstances, when a subclass receives a click event, the event is not actively de

nextresponder = [self nextresponder];if ([Nextresponder Iskindofclass:[uiviewcontroller class]]) {return nextresponder;} else if ([Nextresponder Iskindofclass:[uiview class]]) {return [Nextresponder Traverseresponderchainforuiviewcontroller];} else {return nil;}}Vi. Event DeliveryWhen a sub-view needs to receive a click event, its parent view also needs to receive the Click event, what to do with it:Under normal circumstances, when a subclass receives a click event, the event is not actively de

Objective　　 In iOS, you can use the system's built-in gesture recognition (Gesturerecognizer), or you can create your own gestures. Gesturerecognizer converts low-level to high-level execution behavior, the object you bind to the view, and when a gesture occurs, the view object that is bound to it responds and determines whether the action corresponds to a particular gesture (swipe,pinch,pan,rotation If it

control is recorded as Hit-test view) and the touch event Touchesbegan is triggered. Also, if a control's gesture recognizer receives the touch, it is recognized. Gesture recognition succeeds after sending touch event touchescancelled to Hit-testview,hit-test view no longer responds to touch. * (2) Cancelstouchesinview:The default is yes, in which case the gesture recognizer sends a touchescancelled to Hit-testview to cancel the response of the Hit-test view to touch when it recognizes touch, a

*) Gesturerecognizer Shouldrecognizesimultaneouslywithgesturerecognizer: (Uigesturerecognizer *) Othergesturerecognizer3 {4 returnYES;5 }6 7 whether to allow triggering gestures to start8-(BOOL) Gesturerecognizershouldbegin: (Uigesturerecognizer *) Gesturerecognizer9 {Ten returnNO; One } A - whether to allow the touch of the phone to be received (can control the range of touch) --(BOOL) Gesturerecognizer: (Uigesturerecognizer *) Gesturerecog

Ios gestures are an indispensable part of ios development. However, you do not know the mechanism of ios gestures and events. So today I would like to share with you the corresponding mechanism of ios events. First,

I. OverviewThe operation of touch screen in iphone, before 3.2 is mainly used by the following 4 ways of Uiresponder :-(void) Touchesbegan: (Nsset *) touches withevent: (Uievent *) event-(void) touchescancelled: (Nsset *) touches withevent: ( Uievent *) event-(void) touchesended: (Nsset *) touches withevent: (Uievent *) event-(void) touchesmoved: (Nsset *) touches W Ithevent: (Uievent *) eventBut this way of identifying different gestures is really a

= cgaffinetransformrotate(self. ImageView. Transform, sender. Rotation); Sender. rotation = 0; //Self.imageView.transform = Cgaffinetransformmakerotation (sender.rotation);}Long Press-(void) longpress: (uilongpressgesturerecognizer*) sender {// just want to start by executing a code that needs to determine the state of the gesture if (sender. state = = Uigesturerecognizerstatebegan) { NSLog(@ "longpress"); }} Swipe-(void) Swipe: (uiswipegesturerecognizer*) send

*) senderstate] = = uigesturerecognizerstateended) { Lastscale = 1.0; Return } CGFloat Scale = 1.0-(Lastscale-[(uipinchgesturerecognizer*) Senderscale]); Cgaffinetransform currenttransform = [(uipinchgesturerecognizer*) Senderview].transform; Cgaffinetransform newtransform = Cgaffinetransformscale (currenttransform, scale, scale); [[(uipinchgesturerecognizer*) senderview]settransform:newtransform]; Lastscale = [(uipinchgesturerecognizer*) Senderscale]; } 4. The proxy method of adding gesture #

;Step Three: Add the gesture recognizer to the corresponding View on[Self.iconview Addgesturerecognizer:tap];Fourth step: The trigger of the listening gesture[Tap addtarget:self Action: @selector (Tapiconview:)];Event occurrence invokes the custom Tapiconview method.Note: You can get the view that was clicked through Tap.view.2, the agent of UITapGestureRecognizerSet the agent for UITapGestureRecognizer to be the controller that the UIView is located on, abide by the agent protocol uitapgesturer

(Imageview.transform, p.x, P.Y);[Tuozhuai Settranslation:cgpointzero Inview:imageview];}6. Sweep gesture, this gesture is to look at your sliding directionUiswipegesturerecognizer *qingsao = [[Uiswipegesturerecognizer alloc]initwithtarget:self Action: @selector (Qingsao:) ];[Self.view Addgesturerecognizer:qingsao];[Qingsao release];Qingsao.direction = Direction of uiswipegesturerecognizerdirectionleft;//sweep-(void) Qingsao: (Uiswipegesturerecognizer *) Qingsao{if (qingsao.direction = = Uiswipe

Today for everyone to introduce the iOS seven gestures, gestures in the development of often used, so simple and easy to understand the next, words do not say, directly look at the code://initialize a uiimageview uiimageview *imageview = [[uiimageview Alloc]initwithframe:cgrectmake (100, 100, 300, 300)]; Imageview.image = [uiimage imagenamed: @ "12.jpg"]; //Uiima

Simple methods and gestures for creating arrays in iOS In fact, outsourcing is also quite good. Although tired, the daily knowledge has been expanded a lot. The following are the gains of today. ① Method of initializing array-1 dictionary @ [] Initializing an unchangeable Array @ {} Initialize an unchangeable dictionary ② Use of gestures In

SSL handshake failure resolution between IOS and Java server: Cipher SuitesThe beautiful Life of the Sun Vulcan (http://blog.csdn.net/opengl_es)This article follows "Attribution-non-commercial use-consistent" authoring public agreementReprint Please keep this sentence: Sun Vulcan's Beautiful Life-this blog focuses on Agile development and mobile and IoT device research: IOS, Android, HTML5, Arduino, Pcduino