[代码] 一个手指，拍击两次手势

 

01	// 创建一个手势识别器

02	UITapGestureRecognizer *oneFingerTwoTaps =

03	[[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(oneFingerTwoTaps)] autorelease];

04

05	// Set required taps and number of touches

06	[oneFingerTwoTaps setNumberOfTapsRequired:2];

07	[oneFingerTwoTaps setNumberOfTouchesRequired:1];

08

09	// Add the gesture to the view

10	[[self view] addGestureRecognizer:oneFingerTwoTaps];

11

12	消息方法oneFingerTwoTaps

13	- (void)oneFingerTwoTaps

14

{

15	NSLog(@"Action: One finger, two taps");

16

}

[代码] 两个手指，拍击两次手势

01	UITapGestureRecognizer *twoFingersTwoTaps =

02	[[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(twoFingersTwoTaps)] autorelease];

03	[twoFingersTwoTaps setNumberOfTapsRequired:2];

04	[twoFingersTwoTaps setNumberOfTouchesRequired:2];

05	[[self view] addGestureRecognizer:twoFingersTwoTaps];

06

07	消息方法twoFingersTwoTaps

08	- (void)twoFingersTwoTaps {

09	NSLog(@"Action: Two fingers, two taps");

10

}

[代码] 一个手指向上、向下擦碰手势

01

// 向上擦碰

02	UISwipeGestureRecognizer *oneFingerSwipeUp =

03	[[[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(oneFingerSwipeUp:)] autorelease];

04	[oneFingerSwipeUp setDirection:UISwipeGestureRecognizerDirectionUp];

05	[[self view] addGestureRecognizer:oneFingerSwipeUp];

06

07	- (void)oneFingerSwipeUp:(UISwipeGestureRecognizer *)recognizer

08

{

09	CGPoint point = [recognizer locationInView:[self view]];

10	NSLog(@"Swipe up - start location: %f,%f", point.x, point.y);

11

}

12

13

// 向下擦碰

14	UISwipeGestureRecognizer *oneFingerSwipeDown =

15	[[[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(oneFingerSwipeDown:)] autorelease];

16	[oneFingerSwipeDown setDirection:UISwipeGestureRecognizerDirectionDown];

17	[[self view] addGestureRecognizer:oneFingerSwipeDown];

18

19	- (void)oneFingerSwipeDown:(UISwipeGestureRecognizer *)recognizer

20

{

21	CGPoint point = [recognizer locationInView:[self view]];

22	NSLog(@"Swipe down - start location: %f,%f", point.x, point.y);

23

}

[代码] 旋转手势

1	UIRotationGestureRecognizer *twoFingersRotate =

2	[[[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(twoFingersRotate:)] autorelease];

3	[[self view] addGestureRecognizer:twoFingersRotate];

4

5	- (void)twoFingersRotate:(UIRotationGestureRecognizer *)recognizer

6

{

7	// Convert the radian value to show the degree of rotation

8	NSLog(@"Rotation in degrees since last change: %f", [recognizer rotation] * (180 / M_PI));

9

}

[代码] 向里或向外捏的手势

1	UIPinchGestureRecognizer *twoFingerPinch =

2	[[[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(twoFingerPinch:)] autorelease];

3	[[self view] addGestureRecognizer:twoFingerPinch];

4

5	- (void)twoFingerPinch:(UIPinchGestureRecognizer *)recognizer

6

{

7	NSLog(@"Pinch scale: %f", recognizer.scale);

8

}