iOS手勢的實現(xiàn)方法

更新時間：2017年03月13日 09:45:58 作者：makingitbest

這篇文章主要為大家詳細(xì)介紹了iOS手勢的實現(xiàn)方法，具有一定的參考價值，感興趣的小伙伴們可以參考一下

本文實例為大家分享了iOS手勢的具體實現(xiàn)代碼，供大家參考，具體內(nèi)容如下

效果

細(xì)節(jié)

1.UITouch

#import "ViewController_0.h"

@interface ViewController_0 ()

@property (nonatomic, strong)UILabel *label;

@end

@implementation ViewController_0

- (void)viewDidLoad {
  
  [super viewDidLoad];
  
  self.label          = [[UILabel alloc] initWithFrame:CGRectMake(100, 100, 100, 100)];
  self.label.backgroundColor  = [UIColor yellowColor];
  self.label.layer.borderWidth = 1;
  [self.view addSubview:self.label];
  
  UILabel *textlabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 80, 200, 45)];
  textlabel.text   = @"拖動方塊";
  [textlabel sizeToFit];
  textlabel.font   = [UIFont systemFontOfSize:12];
  [self.view addSubview:textlabel];
}

- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(nullable UIEvent *)event {

  //1.拿到手勢
  UITouch *touch = [touches anyObject];
  
  //2.拿到touch 所在view的坐標(biāo)
  CGPoint point = [touch locationInView:self.view];
  
  //3.讓label拿到坐標(biāo)
  self.label.center = point;
  
  NSLog(@"1.手指接觸到了屏幕");
}

- (void)touchesMoved:(NSSet<UITouch *> *)touches withEvent:(nullable UIEvent *)event {

  //1.拿到手勢
  UITouch *touch = [touches anyObject];
  
  //2.拿到touch 所在view的坐標(biāo)
  CGPoint point = [touch locationInView:self.view];
  
  //3.讓label拿到坐標(biāo)
  self.label.center = point;
  
  NSLog(@"2.手指在屏幕上移動");
}

- (void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(nullable UIEvent *)event {

   NSLog(@"3.手指剛離開屏幕");
}

- (void)touchesCancelled:(NSSet<UITouch *> *)touches withEvent:(nullable UIEvent *)event {

  NSLog(@"4.手勢失效了");
}

@end

2.UITapGestureRecognizer

#import "ViewController_1.h"

@interface ViewController_1 ()

@property (nonatomic, strong) UILabel *label;

@end

@implementation ViewController_1

- (void)viewDidLoad {
  
  [super viewDidLoad];

  UILabel *textlabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 80, 200, 45)];
  textlabel.text   = @"電腦上操作tap手勢 alt +shift 需要連續(xù)點擊次數(shù)2次";
  [textlabel sizeToFit];
  textlabel.font   = [UIFont systemFontOfSize:12];
  [self.view addSubview:textlabel];
  
  self.label            = [[UILabel alloc] initWithFrame:CGRectMake(100, 150, 100, 100)];
  self.label.backgroundColor    = [UIColor orangeColor];
  self.label.userInteractionEnabled = YES;
  self.label.text          = @"0";
  self.label.textAlignment     = NSTextAlignmentCenter;
  [self.view addSubview:self.label];
  
  // 1.創(chuàng)建tap手勢
  UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(labelTap:)];
  tap.numberOfTapsRequired  = 2; //需要輕輕點擊的次數(shù)
  tap.numberOfTouchesRequired = 2;//需要的手指數(shù)量 ：2根手指alt +shift 需要匹配點擊次數(shù)2次（其實直接用默認(rèn)的就好）
  [self.label addGestureRecognizer:tap];
}

- (void)labelTap:(UITapGestureRecognizer *)tap {

  int num = [self.label.text intValue];
  num++;
  self.label.text = [NSString stringWithFormat:@"%d",num ];
}

@end

3.UILongPressGestureRecognizer

#import "ViewController_2.h"

@interface ViewController_2 () <UIGestureRecognizerDelegate>

@property (nonatomic, strong) UILabel *label;

@end

@implementation ViewController_2

- (void)viewDidLoad {
  
  [super viewDidLoad];
  
  UILabel *textlabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 80, 200, 45)];
  textlabel.text   = @"long長按手勢";
  [textlabel sizeToFit];
  textlabel.font   = [UIFont systemFontOfSize:12];
  [self.view addSubview:textlabel];
  
  self.label            = [[UILabel alloc] initWithFrame:CGRectMake(40, 150, 200, 150)];
  self.label.backgroundColor    = [UIColor grayColor];
  self.label.userInteractionEnabled = YES;
  self.label.text          = @"0";
  self.label.textAlignment     = NSTextAlignmentCenter;
  [self.view addSubview:self.label];
  
  UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPressAction:)];
  longPress.numberOfTapsRequired     = 1;
  longPress.numberOfTouchesRequired    = 1;
  longPress.minimumPressDuration     = 1.0;
  longPress.delegate  = self;
  [self.label addGestureRecognizer:longPress];
}

- (void)longPressAction:(UILongPressGestureRecognizer *)longPress {

  if(longPress.state == UIGestureRecognizerStateBegan) {
    
    NSLog(@"手勢狀態(tài)開始");
    
  } else if(longPress.state == UIGestureRecognizerStateEnded) {
    
    NSLog(@"手勢狀態(tài)結(jié)束");
  
  } else if(longPress.state == UIGestureRecognizerStateChanged) {
    
    NSLog(@"手勢狀態(tài)改變");
    
    NSInteger num = [self.label.text integerValue];
    num ++;
    self.label.text = [NSString stringWithFormat:@"%ld",(long)num];
  }
}

@end

4.UISwipeGestureRecognizer

#import "ViewController_3.h"

@interface ViewController_3 ()

@property (nonatomic, strong) UILabel *label;

@end

@implementation ViewController_3

- (void)viewDidLoad {
  
  [super viewDidLoad];
 
  UILabel *textlabel   = [[UILabel alloc] initWithFrame:CGRectMake(10, 80, 200, 45)];
  textlabel.text     = @"swipe手勢 向右滑動➕1,你也可以設(shè)置左劃上劃下劃";
  textlabel.numberOfLines = 0;
  textlabel.font     = [UIFont systemFontOfSize:12];
  [self.view addSubview:textlabel];
  
  self.label            = [[UILabel alloc] initWithFrame:CGRectMake(100, 150, 100, 100)];
  self.label.backgroundColor    = [UIColor grayColor];
  self.label.userInteractionEnabled = YES;
  self.label.text          = @"0";
  self.label.textAlignment     = NSTextAlignmentCenter;
  [self.view addSubview:self.label];

  UISwipeGestureRecognizer *swipeGesture = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeAction:)];
  swipeGesture.direction         = UISwipeGestureRecognizerDirectionRight;//默認(rèn)就是向右劃
  [self.label addGestureRecognizer:swipeGesture];
}

-(void)swipeAction:(UISwipeGestureRecognizer *)swipe {

  if (swipe.direction == UISwipeGestureRecognizerDirectionLeft) {
    
    NSLog(@"現(xiàn)在響應(yīng)左劃手勢");
    
  } else if (swipe.direction == UISwipeGestureRecognizerDirectionRight) {
    
    NSLog(@"現(xiàn)在響應(yīng)右劃手勢");
    
    NSInteger num  = [self.label.text integerValue];
    num ++;
    self.label.text = [NSString stringWithFormat:@"%ld",(long)num];
    
  } else if (swipe.direction == UISwipeGestureRecognizerDirectionUp) {
    
    NSLog(@"現(xiàn)在響應(yīng)上劃手勢");
    
  } else if (swipe.direction == UISwipeGestureRecognizerDirectionDown) {
    
    NSLog(@"現(xiàn)在響應(yīng)下劃手勢");
  }
}

@end

5.UIPanGestureRecognizer

#import "ViewController_4.h"

@interface ViewController_4 ()

@property (nonatomic, strong) UILabel *label;

@end

@implementation ViewController_4

- (void)viewDidLoad {
  
  [super viewDidLoad];
  
  UILabel *textlabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 80, 200, 45)];
  textlabel.text   = @"pan手勢,拖動方塊";
  [textlabel sizeToFit];
  textlabel.font   = [UIFont systemFontOfSize:12];
  [self.view addSubview:textlabel];

  self.label            = [[UILabel alloc] initWithFrame:CGRectMake(100, 100, 100, 100)];
  self.label.backgroundColor    = [UIColor grayColor];
  self.label.userInteractionEnabled = YES;
  self.label.text          = @"0";
  self.label.textAlignment     = NSTextAlignmentCenter;
  [self.view addSubview:self.label];

  UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panAction:)];
  [self.label addGestureRecognizer:pan];
}

- (void)panAction:(UIPanGestureRecognizer *)pan {
  
  CGPoint offset  = [pan locationInView:self.view];
  self.label.center = offset;
}

@end

6.UIRotationGestureRecognizer

#import "ViewController_5.h"

@interface ViewController_5 ()

@property (nonatomic, strong) UILabel *label;

@end

@implementation ViewController_5

- (void)viewDidLoad {
  
  [super viewDidLoad];
  
  UILabel *textlabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 80, 200, 45)];
  textlabel.text   = @"模擬器測試旋轉(zhuǎn)手勢時，按住 option鍵，再用觸摸板或鼠標(biāo)操作";
  textlabel.font   = [UIFont systemFontOfSize:12];
  textlabel.numberOfLines = 0;
  [self.view addSubview:textlabel];

  self.label            = [[UILabel alloc] initWithFrame:CGRectMake(40, 200, 200, 50)];
  self.label.backgroundColor    = [UIColor grayColor];
  self.label.userInteractionEnabled = YES;
  self.label.text          = @"we are friends";
  self.label.textAlignment     = NSTextAlignmentCenter;
  [self.view addSubview:self.label];
  
  //（模擬器測試捏合和旋轉(zhuǎn)手勢時，按住 option 鍵，再用觸摸板或鼠標(biāo)操作）
  UIRotationGestureRecognizer *rotation = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(rotationAction:)];
  [self.view addGestureRecognizer:rotation];

}

- (void)rotationAction:(UIRotationGestureRecognizer *)rotation {
  
  self.label.transform = CGAffineTransformRotate(self.label.transform, rotation.rotation);
  rotation.rotation = 0; // 這個很重要!!!!!

//  static float orginState;
//  
//  self.label.transform = CGAffineTransformMakeRotation(rotation.rotation + orginState);
//  
//  if (rotation.state == UIGestureRecognizerStateEnded) {
//    
//    orginState = orginState + rotation.state;
//    self.label.transform = CGAffineTransformMakeRotation(rotation.rotation);
//  }
}

@end

7.UIPinchGestureRecognizer

#import "ViewController_6.h"

@interface ViewController_6 ()

@property (nonatomic, strong) UILabel *label;

@end

@implementation ViewController_6

- (void)viewDidLoad {
  
  [super viewDidLoad];
 
  UILabel *textlabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 80, 200, 45)];
  textlabel.text   = @"模擬器測試捏合手勢時，按住 option鍵，再用觸摸板或鼠標(biāo)操作";
  textlabel.font   = [UIFont systemFontOfSize:12];
  textlabel.numberOfLines = 0;
  [self.view addSubview:textlabel];
  
  self.label            = [[UILabel alloc] initWithFrame:CGRectMake(100, 250, 80, 80)];
  self.label.backgroundColor    = [UIColor grayColor];
  self.label.userInteractionEnabled = YES;
  self.label.text          = @"0";
  self.label.textAlignment     = NSTextAlignmentCenter;
  [self.view addSubview:self.label];
  
//  （模擬器測試捏合和旋轉(zhuǎn)手勢時，按住 option 鍵，再用觸摸板或鼠標(biāo)操作）
  UIPinchGestureRecognizer * pinch = [[UIPinchGestureRecognizer alloc]initWithTarget:self action:@selector(pichGesture:)];
  [self.view addGestureRecognizer:pinch];
}

- (void)pichGesture:(UIPinchGestureRecognizer *)pinch {
  
  static float originScale = 1;
  
  //手勢縮放返回的scale 是相對于上一次的
  self.label.transform = CGAffineTransformMakeScale(pinch.scale * originScale , pinch.scale*originScale);
  
  if (pinch.state == UIGestureRecognizerStateEnded) {
    
    originScale = originScale * pinch.scale;
  }
}

@end

以上就是本文的全部內(nèi)容，希望對大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。

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