iOS开发中的几个手势操作实例分享

[self performselector:@selector(handlesingletap:) withobject:[nsvalue valuewithcgpoint:touchpoint] afterdelay:0.3];

#define _originalrect cgrectmake(10, 50, 300, 450) 
#define _originalimagename  @"h4.jpeg" 
 
#import "hmtrootviewcontroller.h" 
 
@interface hmtrootviewcontroller (){ 
 
    uitapgesturerecognizer       * _tapgesture; 
    uilongpressgesturerecognizer * _longgesture; 
    uipangesturerecognizer       * _pangesture; 
    uirotationgesturerecognizer  * _rotategesture; 
    uipinchgesturerecognizer     * _pinchgesture; 
    uiswipegesturerecognizer     * _verticalswipegesture; 
    uiswipegesturerecognizer     * _horizontanlswipegesture; 
    bool istopdownofrightleft;    // 垂直滑动是yes,水平滑动是no 
     
} 
 
@property (nonatomic,retain) uibutton * button; 
@property (nonatomic,retain) uiimageview * imageview; 
 
@end 
 
@implementation hmtrootviewcontroller 
 
- (void)dealloc{ 
     
    release_safely(_imageview); 
    release_safely(_button); 
    [super dealloc]; 
 
} 
 
- (id)initwithnibname:(nsstring *)nibnameornil bundle:(nsbundle *)nibbundleornil 
{ 
    self = [super initwithnibname:nibnameornil bundle:nibbundleornil]; 
    if (self) { 
        // custom initialization 
        istopdownofrightleft = yes; 
    } 
    return self; 
} 
 
- (void)viewdidload 
{ 
    [super viewdidload]; 
    // do any additional setup after loading the view. 
     
    [self createbuttonview]; 
    [self createimageview]; 
 
} 
 
#pragma mark - 设置图像 
- (void)createimageview{ 
     
    self.imageview = [[uiimageview alloc]initwithimage:[uiimage imagenamed:_originalimagename]]; 
    _imageview.frame = cgrectmake(10, 50, 300, 450); 
    _imageview.userinteractionenabled = yes; 
    [self.view addsubview:_imageview]; 
    [_imageview release]; 
} 
 
 
 
#pragma mark - 设置手势 
 
#pragma mark  点击手势 
- (void)createtapgesturerecognizer{ 
    
 
    _tapgesture = [[uitapgesturerecognizer alloc]initwithtarget:self action:@selector(tapgesturerecognizer:)]; 
    _tapgesture.numberoftapsrequired = 1; 
    _tapgesture.numberoftouchesrequired = 2; 
    [self.imageview addgesturerecognizer:_tapgesture]; 
    [_tapgesture release]; 
 
} 
 
- (void)tapgesturerecognizer:(uitapgesturerecognizer *)tapgesture{ 
 
    self.imageview.frame = cgrectmake(0, 0, 320, 200); 
    nslog(@"%@",nsstringfromcgrect(self.imageview.frame)); 
 
}  
 
#pragma mark  长按手势 
- (void)createlonggesturerecognizer{ 
     
    _longgesture = [[uilongpressgesturerecognizer alloc]initwithtarget:self action:@selector(longgesturerecognizer:)]; 
    _longgesture.numberoftouchesrequired = 1; 
    _longgesture.minimumpressduration = 1.0; 
    [self.imageview addgesturerecognizer:_longgesture]; 
    [_longgesture release]; 
     
} 
 
- (void)longgesturerecognizer:(uilongpressgesturerecognizer *)longgesture{ 
 
    self.imageview.alpha = 0.5; 
    nslog(@"%s",__function__); 
 
} 
 
#pragma mark 平移拖拽手势 
- (void)createpangesturerecognizer{ 
     
    _pangesture = [[uipangesturerecognizer alloc]initwithtarget:self action:@selector(pangesturerecognizer:)]; 
    [self.imageview addgesturerecognizer:_pangesture]; 
    [_pangesture release]; 
     
} 
 
- (void)pangesturerecognizer:(uipangesturerecognizer *)pangesture{ 
     
    nslog(@"%s",__function__); 
  
    cgpoint txty = [pangesture translationinview:self.view]; 
    self.imageview.transform = cgaffinetransformtranslate(self.imageview.transform, txty.x, txty.y); 
     
    [pangesture settranslation:cgpointmake(0, 0) inview:self.view]; 
     
} 
 
#pragma mark 旋转手势 
- (void)createrotationgesturerecognizer{ 
     
     
    _rotategesture = [[uirotationgesturerecognizer alloc]initwithtarget:self action:@selector(rotationgesturerecognizer:)]; 
    [self.imageview addgesturerecognizer:_rotategesture]; 
    [_rotategesture release]; 
     
} 
 
- (void)rotationgesturerecognizer:(uirotationgesturerecognizer *)rotategesture{ 
     
    nslog(@"%s",__function__); 
    self.imageview.transform = cgaffinetransformrotate(self.imageview.transform, rotategesture.rotation); 
    rotategesture.rotation = 0; 
     
} 
 
#pragma mark 捏合缩放手势 
- (void)createpinchgesturerecognizer{ 
     
    _pinchgesture = [[uipinchgesturerecognizer alloc]initwithtarget:self action:@selector(pinchgesturerecognizer:)]; 
    [self.imageview addgesturerecognizer:_pinchgesture]; 
    [_pinchgesture release]; 
     
} 
 
- (void)pinchgesturerecognizer:(uipinchgesturerecognizer *)pinchgesture{ 
     
    nslog(@"%s",__function__); 
    self.imageview.transform = cgaffinetransformscale(self.imageview.transform, pinchgesture.scale, pinchgesture.scale); 
    pinchgesture.scale = 1; 
     
} 
 
#pragma mark - 轻扫手势 
#pragma mark 上下 竖 垂直轻扫 
- (void)createverticalswipegesturerecognizer{ 
    
    _verticalswipegesture = [[uiswipegesturerecognizer alloc]initwithtarget:self action:@selector(swipegesturerecognizer:)]; 
    _verticalswipegesture.direction = uiswipegesturerecognizerdirectionup | uiswipegesturerecognizerdirectiondown; 
    [self.imageview addgesturerecognizer:_verticalswipegesture]; 
    [_verticalswipegesture release]; 
} 
 
#pragma mark 水平 左右轻扫 
- (void)createhorizontanlswipegesture{ 
     
    _horizontanlswipegesture = [[uiswipegesturerecognizer alloc]initwithtarget:self action:@selector(swipegesturerecognizer:)]; 
    _horizontanlswipegesture.direction = uiswipegesturerecognizerdirectionleft |uiswipegesturerecognizerdirectionright; 
    [self.imageview addgesturerecognizer:_horizontanlswipegesture]; 
     
} 
 
- (void)swipegesturerecognizer:(uiswipegesturerecognizer *)swipegesture{ 
     
    nslog(@"%s",__function__); 
    
    if (swipegesture.direction == (uiswipegesturerecognizerdirectionup|uiswipegesturerecognizerdirectiondown)) { 
        self.imageview.image = [uiimage imagenamed:[nsstring stringwithformat:@"h%i.jpeg",arc4random()%7+1]]; 
        ; 
 
    }else if (swipegesture.direction == (uiswipegesturerecognizerdirectionleft|uiswipegesturerecognizerdirectionright)){ 
     
        self.imageview.image = nil; 
        self.imageview.backgroundcolor = [uicolor colorwithred:arc4random()%256/255.0 green:arc4random()%256/255.0 blue:arc4random()%256/255.0 alpha:1.0]; 
    } 
} 
 
 
#pragma mark - 设置按钮 
- (void)createbuttonview{ 
     
    nsarray * buttonarray = @[@"轻点",@"长按",@"平移",@"旋转",@"捏合",@"轻扫"]; 
     
    for (int i = 0; i < [buttonarray count]; i++) { 
         
        self.button = [uibutton buttonwithtype:uibuttontypesystem]; 
        _button.frame = cgrectmake(10+50*i, 500, 50, 48); 
        [_button settitle:[buttonarray objectatindex:i] forstate:uicontrolstatenormal]; 
        [_button addtarget:self action:@selector(onclikbutton:) forcontrolevents:uicontroleventtouchupinside]; 
        _button.tag = i; 
        [self.view addsubview:_button]; 
    } 
   
} 
 
- (void)onclikbutton:(uibutton *)button{ 
     
    [self resetimageview]; 
    switch (button.tag) { 
        case 0: 
   
            [self createtapgesturerecognizer]; 
            break; 
        case 1: 
  
            [self createlonggesturerecognizer]; 
            break; 
        case 2: 
         
            [self createpangesturerecognizer]; 
            break; 
        case 3: 
            
            [self createrotationgesturerecognizer]; 
            break; 
        case 4: 
             
            [self createpinchgesturerecognizer]; 
            break; 
        case 5: 
            if (istopdownofrightleft == yes) { 
                [self createverticalswipegesturerecognizer]; 
                istopdownofrightleft = no; 
            } else { 
                [self createhorizontanlswipegesture]; 
                istopdownofrightleft = yes; 
            } 
            break; 
        default: 
            break; 
    } 
     
} 
 
#pragma mark - 重置imageview 
- (void)resetimageview 
{ 
    for (int i = 0; i < [self.imageview.gesturerecognizers count]; i++) { 
        [self.imageview removegesturerecognizer:[self.imageview.gesturerecognizers objectatindex:i]]; 
    } 
    self.imageview.alpha = 1.0; 
    self.imageview.transform = cgaffinetransformidentity; 
    self.imageview.frame = _originalrect; 
    self.imageview.image = [uiimage imagenamed:_originalimagename]; 
} 
 
 
- (void)didreceivememorywarning 
{ 
    [super didreceivememorywarning]; 
    // dispose of any resources that can be recreated. 
} 
 
@end