UIPanGestureRecognizer类——为view添加手势

#import <UIKit/UIKit.h>

@interface TestGestureRecognizerViewController : UIViewController {

UIView *aView;

}

@property(nonatomic,retain)IBOutlet UIView *aView;

@end

///////////////////////////////////////////////////////////////////////////////////////////////

#import "TestGestureRecognizerViewController.h"

#import <QuartzCore/QuartzCore.h>//导入框架

@implementation TestGestureRecognizerViewController

@synthesize aView;

-(void)handelPan:(UIPanGestureRecognizer*)gestureRecognizer{

//获取平移手势对象在self.view的位置点，并将这个点作为self.aView的center,这样就实现了拖动的效果

CGPoint curPoint = [gestureRecognizer locationInView:self.view];

[self.aView setCenter:curPoint];

}

-(void)handelTap:(UITapGestureRecognizer *)gestureRecognizer{

NSLog(@"%s",__FUNCTION__);

[NSRunLoop cancelPreviousPerformRequestsWithTarget:self];//双击事件取消延时

}

//单击方法

-(void)handelSingleTap:(UITapGestureRecognizer*)gestureRecognizer{

NSLog(@"%s",__FUNCTION__);

[self performSelector:@selector(singleTap:) withObject:nil afterDelay:0.2];

}

-(void)singleTap:(id)sender{

NSLog(@"%s",__FUNCTION__);

}

- (void)viewDidLoad {

    [super viewDidLoad];

//创建一个平移手势对象，该对象可以调用handelPan：方法

UIPanGestureRecognizer *panGes = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(handelPan:)];

[self.aView addGestureRecognizer:panGes];

[panGes release];

//创建一个点击手势对象，该对象可以调用handelTap：方法

UITapGestureRecognizer *tapGes = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handelTap:)];

[self.view addGestureRecognizer:tapGes];

[tapGes release];

[tapGes setNumberOfTouchesRequired:1];//触摸点个数

[tapGes setNumberOfTapsRequired:2];//点击次数

//创建一个点击手势对象，该对象可以调用handelSingleTap：方法

UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handelSingleTap:)];

[self.view addGestureRecognizer:singleTap];

[singleTap release];

[singleTap setNumberOfTouchesRequired:1];//触摸点个数

[singleTap setNumberOfTapsRequired:1];//点击次数

}

- (void)dealloc {

    [super dealloc];

}

@end