IOS开发—7种常用手势UIGestureRecognizer介绍

7种常用手势UIGestureRecognizer介绍

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1. #import "ViewController.h"   
2. @interface ViewController ()  
3. {  
4.     UITapGestureRecognizer *_tap;  
5.     UIPanGestureRecognizer *_pan;  
6.     UIPinchGestureRecognizer *_pinch;  
7.     UIRotationGestureRecognizer *_rotation;  
8.     UISwipeGestureRecognizer *_swipe;  
9.     UILongPressGestureRecognizer *_longpress;  
10.     UIScreenEdgePanGestureRecognizer *_edgePan;  
11. }  
12. @property (nonatomic, weak) IBOutlet UIView *testView;  
13. @end  
14.    
15. @implementation ViewController  
16. - (void)viewDidLoad {  
17.     [super viewDidLoad];  
18.     [self addTapGesture];  
19.     [self addPanGesture];  
20.     [self addPinchGesture];  
21.     [self addRotationGesture];  
22.     [self addSwipeGesture];  
23.     [self addLongpressGesture];  
24.     [self addEdgePanGesture];  
25. //    手势谦让  
26.     [self gestureHumility];  
27. }  
28.    
29. #pragma mark - 手势  
30. //单击  
31. - (void)addTapGesture{  
32.     _tap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tapAction:)];  
33.     _tap.numberOfTapsRequired = 1;  
34.     [_testView addGestureRecognizer:_tap];  
35. }   
36.   
37. //拖拽  
38. - (void)addPanGesture{  
39.     _pan = [[UIPanGestureRecognizer alloc]initWithTarget:self action:@selector(panAction:)];  
40.     _pan.minimumNumberOfTouches = 1;  
41.     [_testView addGestureRecognizer:_pan];  
42. }  
43.   
44. //捏合  
45. - (void)addPinchGesture{  
46.     _pinch = [[UIPinchGestureRecognizer alloc]initWithTarget:self action:@selector(pinchAction:)];  
47.     [_testView addGestureRecognizer:_pinch];  
48. }  
49.    
50. //旋转  
51. - (void)addRotationGesture{  
52.     _rotation = [[UIRotationGestureRecognizer alloc]initWithTarget:self action:@selector(rotationAction:)];  
53.     [_testView addGestureRecognizer:_rotation];  
54. }  
55.    
56. //轻扫  
57. - (void)addSwipeGesture{  
58.     _swipe = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(swipeAction:)];  
59.     //指定扫动方向  
60.     _swipe.direction = UISwipeGestureRecognizerDirectionDown;  
61.     [_testView addGestureRecognizer:_swipe];  
62. }  
63.    
64. //长按  
65. - (void)addLongpressGesture{  
66.     _longpress = [[UILongPressGestureRecognizer alloc]initWithTarget:self action:@selector(longpressAction:)];  
67.     _longpress.minimumPressDuration = 1.0;  
68.     [_testView addGestureRecognizer:_longpress];  
69. }  
70.    
71. //边缘滑动手势  
72. - (void)addEdgePanGesture{  
73.     _edgePan = [[UIScreenEdgePanGestureRecognizer alloc]initWithTarget:self action:@selector(edgePanAction:)];  
74.     _edgePan.edges = UIRectEdgeLeft;  
75.     [self.view addGestureRecognizer:_edgePan];  
76. }  
77.    
78. #pragma mark - 动作  
79. //单击  
80. - (void)tapAction:(UITapGestureRecognizer *)tap{  
81.     NSLog(@"单击");  
82. }  
83.    
84. //拖拽  
85. - (void)panAction:(UIPanGestureRecognizer *)pan{  
86.     NSLog(@"拖拽");  
87.     CGPoint point = [pan translationInView:pan.view];  
88. //    pan.view.transform =CGAffineTransformMakeTranslation(point.x, point.y);  
89.     pan.view.transform = CGAffineTransformTranslate(pan.view.transform, point.x, point.y);  
90.     [pan setTranslation:CGPointZero inView:pan.view];  
91. }  
92.    
93. //捏合  
94. - (void)pinchAction:(UIPinchGestureRecognizer *)pinch{  
95.     NSLog(@"捏合");  
96.     pinch.view.transform = CGAffineTransformMakeScale(pinch.scale, pinch.scale);  
97.      
98. }  
99.    
100. //旋转  
101. - (void)rotationAction:(UIRotationGestureRecognizer *)rotation{  
102.     NSLog(@"旋转");  
103.     rotation.view.transform = CGAffineTransformMakeRotation(rotation.rotation);  
104. }  
105.   
106. //轻扫  
107. - (void)swipeAction:(UISwipeGestureRecognizer *)swipe{  
108.     NSLog(@"向下轻扫");  
109. }  
110.    
111. //长按  
112. - (void)longpressAction:(UILongPressGestureRecognizer *)longpress{  
113.     NSLog(@"长按");  
114. }  
115.    
116. //边缘滑动手势  
117. - (void)edgePanAction:(UIScreenEdgePanGestureRecognizer *)edgePan{  
118.     NSLog(@"左边缘滑动");  
119.     UIColor *random = [UIColor colorWithRed:arc4random()%256/255.0 green:arc4random()%256/255.0 blue:arc4random()%256/255.0 alpha:1.0];  
120.     self.view.backgroundColor = random;  
121. }  
122.   
123. #pragma mark - privatemethods  
124. - (void)gestureHumility{  
125.     [_pan requireGestureRecognizerToFail:_swipe];  
126. }   
127. @end