UI2_UIGesture

//

//  ViewController.h

//  UI2_UIGesture

//

//  Created by zhangxueming on 15/7/9.

//  Copyright (c) 2015年 zhangxueming. All rights reserved.

//



#import <UIKit/UIKit.h>



@interface ViewController : UIViewController <UIGestureRecognizerDelegate>





@end

 

//

//  ViewController.m

//  UI2_UIGesture

//

//  Created by zhangxueming on 15/7/9.

//  Copyright (c) 2015年 zhangxueming. All rights reserved.

//



#import "ViewController.h"



@interface ViewController ()



@end



@implementation ViewController



- (void)viewDidLoad {

    [super viewDidLoad];

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

    NSArray *names = @[@"blue",@"red",@"yellow"];

    for (int i=0; i<3; i++) {

        UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(100*i, 180+100*i, 100, 100)];

        imageView.image = [UIImage imageNamed:names[i]];

        [self.view addSubview:imageView];

        //打开用户交互使能

        imageView.userInteractionEnabled = YES;

        

        //添加点击手势

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

        //设置点击次数

        tap.numberOfTapsRequired = 1;

        //设置手指个数

        tap.numberOfTouchesRequired = 2;

        //给imageView 添加手势

        [imageView addGestureRecognizer:tap];

        

        //添加长按手势

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

        longPress.numberOfTapsRequired = 0;

        //longPress.numberOfTouchesRequired = 2;

        [imageView addGestureRecognizer:longPress];

        

        //添加移动手势

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

        [imageView addGestureRecognizer:pan];

        

        //捏合手势

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

        [imageView addGestureRecognizer:pinch];

        //旋转手势

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

        [imageView addGestureRecognizer:rotation];

        //轻扫手势

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

        [imageView addGestureRecognizer:swipe];

    }

}



- (void)tapGesture:(UITapGestureRecognizer *)tap

{

    NSLog(@"图片被点击");

}



- (void)longPressGesture:(UILongPressGestureRecognizer *)longPress

{

    NSLog(@"长按手势被触发");

}



- (void)panGesture:(UIPanGestureRecognizer *)pan

{

    NSLog(@"移动手势被触发");//5 10 15   5 5 5

    UIView *view = pan.view;//5+5+5

    //获取手势的偏移量

    CGPoint px = [pan translationInView:self.view];

    if(pan.state == UIGestureRecognizerStateBegan || pan.state == UIGestureRecognizerStateChanged)

    {

    //改变手势对应的view中心点坐标

        pan.view.center = CGPointMake(view.center.x+px.x, view.center.y+px.y);

    }

    //设置偏移量为0;

    [pan setTranslation:CGPointZero inView:self.view];

}



- (void)pinchGesture:(UIPinchGestureRecognizer *)pinch

{

    NSLog(@"捏合手势被触发");

    if(pinch.scale == UIGestureRecognizerStateBegan || pinch.scale ==UIGestureRecognizerStateChanged)

    {

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

    }

    //设置系数为1

    pinch.scale = 1.0;

}



- (void)rotationGesture:(UIRotationGestureRecognizer *)rotation

{

    NSLog(@"旋转手势被触发");

    if (rotation.state == UIGestureRecognizerStateBegan || rotation.state == UIGestureRecognizerStateChanged) {

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

    }

    

    rotation.rotation = 0.0;

}



- (void)swipeGesture:(UISwipeGestureRecognizer *)swipe

{

    NSLog(@"轻扫手势被触发");

}



- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}



@end