你的位置:首页 > 操作系统

[操作系统]IOS 手势详解


在IOS中手势可以让用户有很好的体验,因此我们有必要去了解一下手势。

(在设置手势是有很多值得注意的地方)

*是需要设置为Yes的点击无法响应*

*要把手势添加到所需点击的View,否则无法响应*

手势共有六种,下面我会分开介绍。

点击手势

//// ViewController.m// CX-手势详解//// Created by ma c on 16/3/24.// Copyright © 2016年 xubaoaichiyu. All rights reserved.//#import "ViewController.h"@interface ViewController ()@property (nonatomic, strong) UIImageView * imageView;@end@implementation ViewController#pragma mark - set_and_get-(UIImageView *)imageView{  if (!_imageView) {        _imageView = [[UIImageView alloc]init];        UIImage * image = [UIImage imageNamed:@"nvshen.jpg"];        _imageView.bounds = (CGRect){CGPointZero,image.size};        _imageView.center = self.view.center;    //交互一定要设置为YES 否则无法实现手势    _imageView.userInteractionEnabled = YES;        _imageView.image = image;      }  return _imageView;}- (void)viewDidLoad {  [super viewDidLoad];    [self.view addSubview:self.imageView];    //点击手势    UITapGestureRecognizer * tap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(doAction:)];    //点击一下生效  tap.numberOfTapsRequired = 1;    UITapGestureRecognizer * tapNew = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(doAction:)];    //点击两下生效  tapNew.numberOfTapsRequired = 2;    //在imageView上添加手势  [self.imageView addGestureRecognizer:tap];  [self.imageView addGestureRecognizer:tapNew];    //当点击两下生效时,使点击一下失效  [tap requireGestureRecognizerToFail:tapNew];  }-(void)doAction:(UITapGestureRecognizer *)tap{    if (tap.numberOfTapsRequired == 1) {    NSLog(@"点击一下");  }else if(tap.numberOfTapsRequired == 2 ){    NSLog(@"点击两下");  }  }@end

 拖动手势

//// ViewController.m// CX-手势详解//// Created by ma c on 16/3/24.// Copyright © 2016年 xubaoaichiyu. All rights reserved.//#import "ViewController.h"@interface ViewController ()@property (nonatomic, strong) UIImageView * imageView;@end@implementation ViewController#pragma mark - set_and_get-(UIImageView *)imageView{  if (!_imageView) {        _imageView = [[UIImageView alloc]init];        UIImage * image = [UIImage imageNamed:@"nvshen.jpg"];        _imageView.bounds = (CGRect){CGPointZero,image.size};        _imageView.center = self.view.center;    //交互一定要设置为YES 否则无法实现手势    _imageView.userInteractionEnabled = YES;        _imageView.image = image;      }  return _imageView;}- (void)viewDidLoad {  [super viewDidLoad];    [self.view addSubview:self.imageView];    //拖动手势    UIPanGestureRecognizer * pan = [[UIPanGestureRecognizer alloc]initWithTarget:self action:@selector(doAction:)];    [self.view addGestureRecognizer:pan];  }-(void)doAction:(UIPanGestureRecognizer *)pan{  //获取偏移量  CGPoint point = [pan translationInView:self.imageView];    //通过改变self。imageView的Center来实现拖动  self.imageView.center = CGPointMake(self.imageView.center.x + point.x                    , self.imageView.center.y + point.y);    //复位 如果不进行复位 会在改变的基础上改变 从而使效果不对  [pan setTranslation:CGPointZero inView:self.imageView];  }@end

 长按手势

//// ViewController.m// CX-手势详解//// Created by ma c on 16/3/24.// Copyright © 2016年 xubaoaichiyu. All rights reserved.//#import "ViewController.h"@interface ViewController ()@property (nonatomic, strong) UIImageView * imageView;@end@implementation ViewController#pragma mark - set_and_get-(UIImageView *)imageView{  if (!_imageView) {        _imageView = [[UIImageView alloc]init];        UIImage * image = [UIImage imageNamed:@"nvshen.jpg"];        _imageView.bounds = (CGRect){CGPointZero,image.size};        _imageView.center = self.view.center;    //交互一定要设置为YES 否则无法实现手势    _imageView.userInteractionEnabled = YES;        _imageView.image = image;      }  return _imageView;}- (void)viewDidLoad {  [super viewDidLoad];    [self.view addSubview:self.imageView];    //长按手势    UILongPressGestureRecognizer * longPress = [[UILongPressGestureRecognizer alloc]initWithTarget:self action:@selector(doAction:)];    [self.imageView addGestureRecognizer:longPress];  }-(void)doAction:(UILongPressGestureRecognizer *)longPress{    if (longPress.state == UIGestureRecognizerStateBegan) {    NSLog(@"开始");  }  else if (longPress.state == UIGestureRecognizerStateEnded){    NSLog(@"结束");  }  }@end

轻扫手势

//// ViewController.m// CX-手势详解//// Created by ma c on 16/3/24.// Copyright © 2016年 xubaoaichiyu. All rights reserved.//#import "ViewController.h"@interface ViewController ()@property (nonatomic, strong) UIImageView * imageView;@end@implementation ViewController#pragma mark - set_and_get-(UIImageView *)imageView{  if (!_imageView) {        _imageView = [[UIImageView alloc]init];        UIImage * image = [UIImage imageNamed:@"nvshen.jpg"];        _imageView.bounds = (CGRect){CGPointZero,image.size};        _imageView.center = self.view.center;    //交互一定要设置为YES 否则无法实现手势    _imageView.userInteractionEnabled = YES;        _imageView.image = image;      }  return _imageView;}- (void)viewDidLoad {  [super viewDidLoad];    [self.view addSubview:self.imageView];    //轻扫手势    UISwipeGestureRecognizer * swipe = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(doAction:)];  //需要设置 默认为右  /*   默认是UISwipeGestureRecognizerDirectionRight。所需的方向刷。可指定多个方向是否会导致相同的行为(例如,UITableView滑动删除)   */  swipe.direction = UISwipeGestureRecognizerDirectionLeft;    [self.imageView addGestureRecognizer:swipe];  }-(void)doAction:(UISwipeGestureRecognizer *)swipe{    if (swipe.direction == UISwipeGestureRecognizerDirectionLeft) {    NSLog(@"左");  }  else if (swipe.direction == UISwipeGestureRecognizerDirectionRight){    NSLog(@"右");  }  else if (swipe.direction == UISwipeGestureRecognizerDirectionDown){    NSLog(@"下");  }  else if (swipe.direction == UISwipeGestureRecognizerDirectionUp){    NSLog(@"上");  }}@end

捏合手势

(在捏合和旋转手势中我们需要一些操作)

*按住option 在触碰到触摸板的时候会出现模拟出现的两根手指*

*如果你所操作的view不在两个触摸点的位置,可以按住shift进行移动*

*当进行捏合旋转的时候,一定要把触摸板按下,才可进行操作*

//// ViewController.m// CX-手势详解//// Created by ma c on 16/3/24.// Copyright © 2016年 xubaoaichiyu. All rights reserved.//#import "ViewController.h"@interface ViewController ()@property (nonatomic, strong) UIImageView * imageView;@end@implementation ViewController#pragma mark - set_and_get-(UIImageView *)imageView{  if (!_imageView) {        _imageView = [[UIImageView alloc]init];        UIImage * image = [UIImage imageNamed:@"nvshen.jpg"];        _imageView.bounds = (CGRect){CGPointZero,image.size};        _imageView.center = self.view.center;    //交互一定要设置为YES 否则无法实现手势    _imageView.userInteractionEnabled = YES;        _imageView.image = image;      }  return _imageView;}- (void)viewDidLoad {  [super viewDidLoad];    [self.view addSubview:self.imageView];    //捏合手势    UIPinchGestureRecognizer * pinch = [[UIPinchGestureRecognizer alloc]initWithTarget:self action:@selector(doAction:)];    [self.imageView addGestureRecognizer:pinch];  }-(void)doAction:(UIPinchGestureRecognizer *)pinch{  //持续改变  self.imageView.transform = CGAffineTransformScale(self.imageView.transform, pinch.scale, pinch.scale);  //复位  pinch.scale = 1;  }@end

旋转手势

//// ViewController.m// CX-手势详解//// Created by ma c on 16/3/24.// Copyright © 2016年 xubaoaichiyu. All rights reserved.//#import "ViewController.h"@interface ViewController ()@property (nonatomic, strong) UIImageView * imageView;@end@implementation ViewController#pragma mark - set_and_get-(UIImageView *)imageView{  if (!_imageView) {        _imageView = [[UIImageView alloc]init];        UIImage * image = [UIImage imageNamed:@"nvshen.jpg"];        _imageView.bounds = (CGRect){CGPointZero,image.size};        _imageView.center = self.view.center;    //交互一定要设置为YES 否则无法实现手势    _imageView.userInteractionEnabled = YES;        _imageView.image = image;      }  return _imageView;}- (void)viewDidLoad {  [super viewDidLoad];    [self.view addSubview:self.imageView];    //旋转手势    UIRotationGestureRecognizer * rotation = [[UIRotationGestureRecognizer alloc]initWithTarget:self action:@selector(doAction:)];    [self.imageView addGestureRecognizer:rotation];  }-(void)doAction:(UIRotationGestureRecognizer *)rotation{  //持续改变  self.imageView.transform = CGAffineTransformRotate(self.imageView.transform, rotation.rotation);  //复位  rotation.rotation = 0;  }@end

有一点值得注意的是,旋转手势和捏合手势是不可以同时操作的,想要同时操作可以通过代理实现,如下。

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

在上面的代码实现时返回YES即可。