手势图片：拖拽捏合旋转放大

 //转载他处

#import "MainViewController.h"

 

@interface MainViewController ()

@property (strong, nonatomic) UIImageView *imageView;

@property (strong, nonatomic) UIImageView *imageView2;

@property CGFloat lastRotation;

@property CGRect frame1;

@property CGRect frame2;

@end

 

@implementation MainViewController

 

 - (void)viewDidLoad

{

    [super viewDidLoad];

    

    CGFloat pointY = self.view.center.y;

    

 

    self.imageView2 = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"png-0838"]];

    self.imageView2.frame  = CGRectMake(0, 0, 220, 220);

    self.imageView2.center = CGPointMake(self.view.center.x, pointY*2/3);

    

    [self.view addSubview:self.imageView2];

self.imageView = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"music"]];

    self.imageView.frame  = CGRectMake(0, 0, 220, 220);

    self.imageView.center = CGPointMake(self.view.center.x, pointY*4/3);

    [self.view addSubview:self.imageView];

    self.view.multipleTouchEnabled = YES;//多个触摸启用

    

        

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

    rotationG.delegate = self;

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

    pinchGestureRecongnizer.delegate = self;

    [self.imageView setUserInteractionEnabled:YES];

    [self.imageView addGestureRecognizer:pinchGestureRecongnizer];

    [self.imageView addGestureRecognizer:rotationG];

    

    

    UIRotationGestureRecognizer *rotationG2 = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(rotationImage2:)];

    rotationG2.delegate = self;

    UIPinchGestureRecognizer *pinchGestureRecongnizer2 = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(changeImage2:)];

    pinchGestureRecongnizer2.delegate = self;

        [self.imageView2 setUserInteractionEnabled:YES];

        [self.imageView2 addGestureRecognizer:pinchGestureRecongnizer2];

        [self.imageView2 addGestureRecognizer:rotationG2];



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

    [self.imageView addGestureRecognizer:panGesture];

    

    UIPanGestureRecognizer *panGesture2=[[UIPanGestureRecognizer alloc]initWithTarget:self action:@selector(panpan2:)];

    [self.imageView2 addGestureRecognizer:panGesture2];

    
    self.frame1 = self.imageView.frame;

    self.frame2 = self.imageView2.frame;
    

}

//移动

- (void)panpan:(UIPanGestureRecognizer *)sender {

//    NSLog(@"pan");

    [self.view bringSubviewToFront:self.imageView];//放置在前面

    CGPoint location = [sender locationInView:self.view];//获取在view中的位置

    NSLog(@"(%f,%f)",location.x,location.y);

    sender.view.center = CGPointMake(location.x,  location.y);//调换frame，固定位置

    

    

}

- (void)panpan2:(UIPanGestureRecognizer *)sender {

    [self.view bringSubviewToFront:self.imageView2];

    CGPoint location = [sender locationInView:self.view];

    sender.view.center = CGPointMake(location.x,  location.y);

}

 

//旋转

- (void)rotationImage:(UIRotationGestureRecognizer*)gesture {

    

    NSLog(@"rotation");

    [self.view bringSubviewToFront:gesture.view];

    

    CGPoint location = [gesture locationInView:self.view];

    gesture.view.center = CGPointMake(location.x, location.y);

    

    if ([gesture state] == UIGestureRecognizerStateEnded) {

        self.lastRotation = 0;

        return;

    }

    

    CGAffineTransform currentTransform = self.imageView.transform;

    CGFloat rotation = 0.0 - (self.lastRotation - gesture.rotation);

    CGAffineTransform newTransform = CGAffineTransformRotate(currentTransform, rotation);

    self.imageView.transform = newTransform;

    self.lastRotation = gesture.rotation;

}

//放大，缩小

- (void)changeImage:(UIPinchGestureRecognizer*)pinchGestureRecognizer {

    NSLog(@"change");

    [self.view bringSubviewToFront:pinchGestureRecognizer.view];

 

    CGPoint location = [pinchGestureRecognizer locationInView:self.view];

    pinchGestureRecognizer.view.center = CGPointMake(location.x, location.y);

    pinchGestureRecognizer.view.transform = CGAffineTransformScale(pinchGestureRecognizer.view.transform, pinchGestureRecognizer.scale, pinchGestureRecognizer.scale);

    pinchGestureRecognizer.scale = 1;

    

    

}

- (void)changeImage2:(UIPinchGestureRecognizer*)pinchGestureRecognizer {

    

    

    [self.view bringSubviewToFront:pinchGestureRecognizer.view];

    CGPoint location = [pinchGestureRecognizer locationInView:self.view];

    pinchGestureRecognizer.view.center = CGPointMake(location.x, location.y);

    pinchGestureRecognizer.view.transform = CGAffineTransformScale(pinchGestureRecognizer.view.transform, pinchGestureRecognizer.scale, pinchGestureRecognizer.scale);

    pinchGestureRecognizer.scale = 1;

    

    

}

- (void)rotationImage2:(UIRotationGestureRecognizer*)gesture {

    

    [self.view bringSubviewToFront:gesture.view];

    CGPoint location = [gesture locationInView:self.view];

    gesture.view.center = CGPointMake(location.x, location.y);

    if ([gesture state] == UIGestureRecognizerStateEnded) {

        self.lastRotation = 0;

        return;

    }

    CGAffineTransform currentTransform = self.imageView2.transform;

    CGFloat rotation = 0.0 - (self.lastRotation - gesture.rotation);

    CGAffineTransform newTransform = CGAffineTransformRotate(currentTransform, rotation);

    self.imageView2.transform = newTransform;

    self.lastRotation = gesture.rotation;

}

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

    return  YES;

}

 

@end

 

16:31:392016-05-30

转载于:https://www.cnblogs.com/OIMM/p/5542928.html