IOS开发—7种常用手势UIGestureRecognizer介绍

7种常用手势UIGestureRecognizer介绍

#import "ViewController.h" 
@interface ViewController ()
{
    UITapGestureRecognizer *_tap;
    UIPanGestureRecognizer *_pan;
    UIPinchGestureRecognizer *_pinch;
    UIRotationGestureRecognizer *_rotation;
    UISwipeGestureRecognizer *_swipe;
    UILongPressGestureRecognizer *_longpress;
    UIScreenEdgePanGestureRecognizer *_edgePan;
}
@property (nonatomic, weak) IBOutlet UIView *testView;
@end
 
@implementation ViewController
- (void)viewDidLoad {
    [super viewDidLoad];
    [self addTapGesture];
    [self addPanGesture];
    [self addPinchGesture];
    [self addRotationGesture];
    [self addSwipeGesture];
    [self addLongpressGesture];
    [self addEdgePanGesture];
//    手势谦让
    [self gestureHumility];
}
 
#pragma mark - 手势
//单击
- (void)addTapGesture{
    _tap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tapAction:)];
    _tap.numberOfTapsRequired = 1;
    [_testView addGestureRecognizer:_tap];
} 

//拖拽
- (void)addPanGesture{
    _pan = [[UIPanGestureRecognizer alloc]initWithTarget:self action:@selector(panAction:)];
    _pan.minimumNumberOfTouches = 1;
    [_testView addGestureRecognizer:_pan];
}

//捏合
- (void)addPinchGesture{
    _pinch = [[UIPinchGestureRecognizer alloc]initWithTarget:self action:@selector(pinchAction:)];
    [_testView addGestureRecognizer:_pinch];
}
 
//旋转
- (void)addRotationGesture{
    _rotation = [[UIRotationGestureRecognizer alloc]initWithTarget:self action:@selector(rotationAction:)];
    [_testView addGestureRecognizer:_rotation];
}
 
//轻扫
- (void)addSwipeGesture{
    _swipe = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(swipeAction:)];
    //指定扫动方向
    _swipe.direction = UISwipeGestureRecognizerDirectionDown;
    [_testView addGestureRecognizer:_swipe];
}
 
//长按
- (void)addLongpressGesture{
    _longpress = [[UILongPressGestureRecognizer alloc]initWithTarget:self action:@selector(longpressAction:)];
    _longpress.minimumPressDuration = 1.0;
    [_testView addGestureRecognizer:_longpress];
}
 
//边缘滑动手势
- (void)addEdgePanGesture{
    _edgePan = [[UIScreenEdgePanGestureRecognizer alloc]initWithTarget:self action:@selector(edgePanAction:)];
    _edgePan.edges = UIRectEdgeLeft;
    [self.view addGestureRecognizer:_edgePan];
}
 
#pragma mark - 动作
//单击
- (void)tapAction:(UITapGestureRecognizer *)tap{
    NSLog(@"单击");
}
 
//拖拽
- (void)panAction:(UIPanGestureRecognizer *)pan{
    NSLog(@"拖拽");
    CGPoint point = [pan translationInView:pan.view];
//    pan.view.transform =CGAffineTransformMakeTranslation(point.x, point.y);
    pan.view.transform = CGAffineTransformTranslate(pan.view.transform, point.x, point.y);
    [pan setTranslation:CGPointZero inView:pan.view];
}
 
//捏合
- (void)pinchAction:(UIPinchGestureRecognizer *)pinch{
    NSLog(@"捏合");
    pinch.view.transform = CGAffineTransformMakeScale(pinch.scale, pinch.scale);
   
}
 
//旋转
- (void)rotationAction:(UIRotationGestureRecognizer *)rotation{
    NSLog(@"旋转");
    rotation.view.transform = CGAffineTransformMakeRotation(rotation.rotation);
}

//轻扫
- (void)swipeAction:(UISwipeGestureRecognizer *)swipe{
    NSLog(@"向下轻扫");
}
 
//长按
- (void)longpressAction:(UILongPressGestureRecognizer *)longpress{
    NSLog(@"长按");
}
 
//边缘滑动手势
- (void)edgePanAction:(UIScreenEdgePanGestureRecognizer *)edgePan{
    NSLog(@"左边缘滑动");
    UIColor *random = [UIColor colorWithRed:arc4random()%256/255.0 green:arc4random()%256/255.0 blue:arc4random()%256/255.0 alpha:1.0];
    self.view.backgroundColor = random;
}

#pragma mark - privatemethods
- (void)gestureHumility{
    [_pan requireGestureRecognizerToFail:_swipe];
} 
@end