IOS 手势之左右滑动UISwipeGestureRecognizer

来源：互联网发布：小程序源码上传服务器编辑：程序博客网时间：2024/06/10 02:36

做个左右滑动手势.

1. 在"ViewController.h"中增加两个手势property.

@property (nonatomic, strong) UISwipeGestureRecognizer *leftSwipeGestureRecognizer;

@property (nonatomic, strong) UISwipeGestureRecognizer *rightSwipeGestureRecognizer;

并synthesize到"ViewController.m"文件中.

2.在"ViewController.m"文件中的"ViewDidLoad"方法中增加如下代码:

self.leftSwipeGestureRecognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipes:)];

self.rightSwipeGestureRecognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipes:)];

self.leftSwipeGestureRecognizer.direction = UISwipeGestureRecognizerDirectionLeft;

self.rightSwipeGestureRecognizer.direction = UISwipeGestureRecognizerDirectionRight;

[self.view addGestureRecognizer:self.leftSwipeGestureRecognizer];

[self.view addGestureRecognizer:self.rightSwipeGestureRecognizer];

3.并在"ViewController.m"中增加如下方法;

- (void)handleSwipes:(UISwipeGestureRecognizer *)sender

{

if (sender.direction == UISwipeGestureRecognizerDirectionLeft) {

CGPoint labelPosition = CGPointMake(self.swipeLabel.frame.origin.x - 100.0, self.swipeLabel.frame.origin.y);

self.swipeLabel.frame = CGRectMake( labelPosition.x , labelPosition.y , self.swipeLabel.frame.size.width, self.swipeLabel.frame.size.height);

self.swipeLabel.text = @"尼玛的, 你在往左边跑啊....";

}

if (sender.direction == UISwipeGestureRecognizerDirectionRight) {

CGPoint labelPosition = CGPointMake(self.swipeLabel.frame.origin.x + 100.0, self.swipeLabel.frame.origin.y);

self.swipeLabel.frame = CGRectMake( labelPosition.x , labelPosition.y , self.swipeLabel.frame.size.width, self.swipeLabel.frame.size.height);

self.swipeLabel.text = @"尼玛的, 你在往右边跑啊....";

}

4. 保存, 编译, 运行....

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