#import "HMViewController.h"

@interface HMViewController ()<UIGestureRecognizerDelegate>

@property (weak, nonatomic) IBOutlet UIImageView *imagView;

@end

@implementation HMViewController

- (void)viewDidLoad

{

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

    // pan

    UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(pan:)];

    [_imagView addGestureRecognizer:pan];

}

- (void)pan:(UIPanGestureRecognizer *)pan

{

    // 获取手指移动的位置

    CGPoint trans = [pan translationInView:_imagView];

    _imagView.transform = CGAffineTransformTranslate(_imagView.transform, trans.x, trans.y);

    // 复位

    [pan setTranslation:CGPointZero inView:_imagView];

    NSLog(@"%@",NSStringFromCGPoint(trans));

}

#warning pinch

- (void)addPinch

{

    UIPinchGestureRecognizer *pinch = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(pinch:)];

    // 设置代理的原因：想要同时支持多个手势

    pinch.delegate = self;

    [_imagView addGestureRecognizer:pinch];

}

- (void)pinch:(UIPinchGestureRecognizer *)pinch

{

    _imagView.transform = CGAffineTransformScale(_imagView.transform, pinch.scale, pinch.scale);

    // 复位

    pinch.scale = ;

}

// Simultaneous:同时

// 默认是不支持多个手势

// 当你使用一个手势的时候就会调用

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer

{

    return YES;

}

#warning rotation

- (void)addRotation

{

    // rotation

    UIRotationGestureRecognizer *rotation = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(rotation:)];

    rotation.delegate = self;

    [_imagView addGestureRecognizer:rotation];

}

- (void)rotation:(UIRotationGestureRecognizer *)rotation

{

    NSLog(@"%f",rotation.rotation);

//    _imagView.transform = CGAffineTransformMakeRotation(rotation.rotation);

    _imagView.transform = CGAffineTransformRotate(_imagView.transform, rotation.rotation);

    // 复位

    rotation.rotation = ;

}

#warning Swipe

- (void)addSwipe

{

    // Swipe

    // 一个手势只能识别一个方向

    UISwipeGestureRecognizer *swipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipe:)];

    swipe.direction = UISwipeGestureRecognizerDirectionRight;

    [_imagView addGestureRecognizer:swipe];

}

- (void)swipe:(UISwipeGestureRecognizer *)swipe

{

    NSLog(@"swipe");

}

#warning longPress

- (void)addLongPress

{

    // longPress

    UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPress:)];

    [_imagView addGestureRecognizer:longPress];

}

- (void)longPress:(UILongPressGestureRecognizer *)longPress

{

    // 根据状态执行事件

    if (longPress.state == UIGestureRecognizerStateBegan) {

        NSLog(@"longPress");

    }

}

#warning tap

- (void)addTap

{

    // tap

    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tap:)];

    // 点按多少次才能触发手势

    //    tap.numberOfTapsRequired = 2;

    //

    //    // 必须多少个手指触摸才能触发手势

    //    tap.numberOfTouchesRequired = 2;

    tap.delegate = self;

    [_imagView addGestureRecognizer:tap];

}

// 这个触摸点能否触发手势

//- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch

//{

//    CGPoint currentPoint = [touch locationInView:_imagView];

//

//    if (currentPoint.x < _imagView.bounds.size.width * 0.5) {

//        return NO;

//    }else{

//

//        return YES;

//    }

//}

- (void)tap:(UITapGestureRecognizer *)tap

{

    NSLog(@"tap");

}

- (void)didReceiveMemoryWarning

{

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

@end