Use of ios--gesture control

Gesture recognition is a principle of mutual exclusion, such as clicking and double-clicking, if it recognizes a gesture, the subsequent gesture will not be recognized

Add a click Gesture uitapgesturerecognize

UITapGestureRecognizer *tapgesturerecognizer = [[UITapGestureRecognizer alloc] init];

[Tapgesturerecognizer addtarget:self Action: @selector (tapgestureaction:)];//How to add a click gesture

[Self.view Addgesturerecognizer:tapgesturerecognizer]; Add to Current View

Add a double-tap gesture uitapgesturerecognize

UITapGestureRecognizer *tapgesturerecognizer = [[UITapGestureRecognizer alloc] init];

tapgesturerecognizer.numberoftapsrequired = 2; Set a few clicks to trigger the method

[Tapgesturerecognizer addtarget:self Action: @selector (tapgestureaction:)];//How to add a click gesture

[Self.view Addgesturerecognizer:tapgesturerecognizer]; Add to Current View

Add a long-pressed gesture Uilongpressgesturerecognizer

Note: A two-time method is called that starts a long press call once released and then called once while long pressing and sliding, the long press method is called multiple times

Uilongpressgesturerecognizer *presslonggesturerecognizer = [[Uilongpressgesturerecognizeralloc] init];

[Presslonggesturerecognizer addtarget:self Action: @selector (presslonggestureaction:)];//Add a method to a long press gesture

[Self.view Addgesturerecognizer:presslonggesturerecognizer]; Add to Current View

Add a pinch gesture Uipinchgesturerecognizer

Note: The pinch gesture is not a kneading call method at a time, but rather a constant call to the method during the kneading process.

Uipinchgesturerecognizer *pinchgesturerecognizer = [[Uipinchgesturerecognizer alloc] init];

[Pinchgesturerecognizer addtarget:self Action: @selector (pinchgestureaction:)];//How to add a pinch gesture

[Self.view Addgesturerecognizer:pinchgesturerecognizer]; Add to Current View

Add a rotated gesture Uirotationgesturerecognizer

Note: The rotation gesture is rotated at the same time by two fingers

Uirotationgesturerecognizer *rotationgesturerecognizer = [[Uirotationgesturerecognizeralloc] init];

[Rotationgesturerecognizer addtarget:self Action: @selector (rotationgestureaction:)];//Add a method to a rotation gesture

[Self.view Addgesturerecognizer:rotationgesturerecognizer]; Add to Current View

Add a swipe gesture (swipe gesture) Uiswipegesturerecognizer

Note: Fast moving, is used to monitor the direction of the slide

Uiswipegesturerecognizer *swipgesturerecognizer = [[Uiswipegesturerecognizer alloc] init];

Swipgesturerecognizer.direction = Uiswipegesturerecognizerdirectionup; Ways to add gestures

Here is the direction of setting the slide

typedef ns_options (Nsuinteger, uiswipegesturerecognizerdirection) {

Uiswipegesturerecognizerdirectionright = 1 << 0,//swipe from left to right

Uiswipegesturerecognizerdirectionleft = 1 << 1,//swipe from right to left

Uiswipegesturerecognizerdirectionup = 1 << 2,//swipe up from the bottom

Uiswipegesturerecognizerdirectiondown = 1 << 3//swipe from top down

// };

[Swipgesturerecognizer addtarget:self Action: @selector (swipgestureaction:)];//Add a method to a swipe gesture

[Self.view Addgesturerecognizer:swipgesturerecognizer]; Add to Current View

Add a drag gesture (panning gesture) Uipangesturerecognizer

Note: Slow movement, which is used to monitor the amount of offsets

Uipangesturerecognizer *pangesturerecognizer = [[Uipangesturerecognizer alloc] init];

[Pangesturerecognizer addtarget:self Action: @selector (pangestureaction:)];//Add a way to pack and remove

[Self.view Addgesturerecognizer:pangesturerecognizer]; Add to Current View

[Pangesturerecognizer release], Pangesturerecognizer = nil; Freeing memory

#pragma mark-How to implement a click gesture

-(void) Tapgestureaction: (UITapGestureRecognizer *) Sender {

NSLog (@ "You tapped the screen");

}

#pragma mark-How to implement a long-press gesture

-(void) Presslonggestureaction: (Uilongpressgesturerecognizer *) Sender {

NSLog (@ "You have long pressed the screen");

}

#pragma mark-a way to make a pinch gesture

-(void) Pinchgestureaction: (Uipinchgesturerecognizer *) Sender {

NSLog (@ "You pinch the screen");

}

#pragma mark-How to implement a rotational gesture

-(void) Rotationgestureaction: (Uirotationgesturerecognizer *) Sender {

NSLog (@ "You use a rotating gesture");

}

#pragma mark-How to implement a swipe gesture

-(void) Swipgestureaction: (Uiswipegesturerecognizer *) Sender {

NSLog (@ "You swipe the screen");

}

#pragma mark-a way to implement a support gesture

-(void) Pangestureaction: (Uipangesturerecognizer *) Sender {

NSLog (@ "You have moved .... ");

}

Shaking gestures

-(BOOL) Application: (UIApplication *) application didfinishlaunchingwithoptions: (nsdictionary*) launchOptions

{

Application.applicationsupportsshaketoedit = YES;

return YES;

}

-(BOOL) Canbecomefirstresponder {

return YES;

}

-(void) Viewdidappear: (BOOL) Animated {

[Super viewdidappear:animated];

[Self becomefirstresponder];

}

-(void) Viewwilldisappear: (BOOL) Animated {

[Self resignfirstresponder];

[Super viewwilldisappear:animated];

}

-(void) motionended: (uieventsubtype) Motion withevent: (uievent *) event

{

if (motion = = Uieventsubtypemotionshake) {

NSLog (@ "Shake detected");

}

}

Use of ios--gesture control