IOS开发 UIGesture手势基础

1.UITapGetureRecognizer的点击手势基本属性函数

numberOfTapsRequierd:点击次数

numberOfTouchRequired:点击手指个数

UIView:addGestureRecognizer 试图添加手势

requiredGestureRecognizerToFail手势失效函数

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【ViewController.h】

#import<UIkit/UIkit.h>

@interface ViewController:UIViewController{

//定义视图对象

UIImageView*_imageView;

@edn

}

【ViewController.m】

#import"ViewController.h"

@interface Viewconroller()

@end

@implementation ViewController

-(void)viewDidLoad{

[supper viewDidLoad];

//加载图像对象，从本硬盘加载到内存中

UIImage* image=[[UIImage imageNamed:"17_2.jpg"];

//创建图像视图

_imageView=[[UIImage  alloc]init];

//将图像视图的图像赋值

_imageView.image=image;

_imageView.frame=CGRectMake(50,80,200,300);

[self.view addSubview:_imageView];

//开启交互事件响应开关,YES:可以响应交互事件，NO :不能接实验室响应事件，默认值为：NO

_imageView.userInteractionEnabled=YES;

//创建一个点击手势对象，UITapGestureRecongnizer:点击手势，功能：识别点击手势事件，

//参数1：响应事件的拥有者对象，self表示当前视图控制器

//参数2：响应事件的函数

UITapGestureRecognizer* tapOneGes=[[UITapGesttureRecongnizer alloc]initWithTarget:self action:@selector(tapOneAct:]];

//表示手势识别事件的事件类型：几次点击的触发，/默认值为1

tapOneGest.numberOftapsRequired=1;

//青示几个手指点击时触发此事件函数，默认值为：1

tapOneGest.numberOfTouchesRequired=1;

//将点击事件添加到视图中，视图即可响应事件

[_imageView addGestureRecognizer:tapOnesGest];

//创建双击手势视图

UITapGestureRecognizer* tapOneGes=[[UITapGesttureRecongnizer alloc]initWithTarget:self action:@selector(tapTwo:]];

tapOneGest.numberOftapsRequired=2;

tapOneGest.numberOfTouchesRequired=1;

[_imageView addGestureRecognizer:tapTwot];

//当单击操作遇到双击操作时，单击操作失效

[tapOnesGes requireGestureRecognizerToFail:tapTwo];

}

-(void)tapTwo:(UITapGestureRecongnizer*)tap{

[UIView beginAnimations:nil context:nil];

[UIView setAnimationDuratin:1];

imageView.frame=CGRectMake(50,80,200,300);

[UIView commitAnimations];

｝

//事件响应函数，参数手势点击事件对象

-(void)tapOneAct:(UITapGestureRecongnizer*)tap{

//获取手势监控的视图对象

UIImageView* imageView=(UIImageView*)tap.view;

//开始动画过程

[UIView beginAnimations:nil context:nil];

//设置动画过滤时间

[UIView setAnimationDuratin:2];

imageView.frame=CGRectMake(0,0320,568);

//结束动画过程

[UIView commitAnimations];

}

}