iOS UI-手势（Gesture）

 #import "ViewController.h"

 @interface ViewController ()<UIActionSheetDelegate>
 @property (strong, nonatomic) UITextField *me_textfield;

 @end

 @implementation ViewController

 - (void)viewDidLoad {
     [super viewDidLoad];
     [self.view setBackgroundColor:[UIColor lightGrayColor]];
     /*
      手势分类:
      滑动手势、点击手势、双击手势、长按手势等7种
      */

 //    self.me_textfield = [[UITextField alloc] initWithFrame:CGRectMake(0, 100, 375, 100)];
 //    self.me_textfield.placeholder = @"请输入";
 //    self.me_textfield.borderStyle = UITextBorderStyleRoundedRect;
 //    //self.me_textfield.center =self.view.center;
 //    [self.view addSubview:self.me_textfield];

     //创建点击手势
     UITapGestureRecognizer *click = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(clickToDoSomething)];
     [self.view addGestureRecognizer:click];

     //创建长按手势
     UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPressToDoSomething)];
     longPress.minimumPressDuration = 2.0;
     [self.view addGestureRecognizer:longPress];

     //创建捏合手势
     UIPinchGestureRecognizer *pich = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(pichToDoSomething)];
     [self.view addGestureRecognizer:pich];

     //创建旋转手势
     UIRotationGestureRecognizer *rotation = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(rotationToDoSomething)];
     [self.view addGestureRecognizer:rotation];

     //创建轻扫手势
     UISwipeGestureRecognizer *swipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeToDoSomething)];
     [self.view addGestureRecognizer:swipe];

     //创建拖动手势
     UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panToDoSomething)];
     [self.view addGestureRecognizer:pan];

     //创建屏幕边缘拖动手势
     UIScreenEdgePanGestureRecognizer *screenEdgePan =[[UIScreenEdgePanGestureRecognizer alloc] initWithTarget:self action:@selector(screenEdgePanToDoSomething)];
     [self.view addGestureRecognizer:screenEdgePan];
 }
 #pragma mark - 屏幕边缘拖动手势关联方法
 - (void)screenEdgePanToDoSomething
 {
     NSLog(@"屏幕边缘拖动");
 }
 #pragma mark - 拖动手势关联方法
 - (void)panToDoSomething
 {
     NSLog(@"拖动");
 }
 #pragma mark - 轻扫手势关联方法
 - (void)swipeToDoSomething
 {
     NSLog(@"轻扫");
 }
 #pragma mark - 旋转手势关联方法
 - (void)rotationToDoSomething
 {
     NSLog(@"旋转");
 }
 #pragma mark - 捏合手势关联方法
 - (void)pichToDoSomething
 {
     NSLog(@"捏合");
 }
 #pragma mark - 长按手势关联方法
 - (void)longPressToDoSomething
 {
     UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"关机" message:@"" delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"确定",nil];
     [alert show];
 }
 #pragma mark - 点击手势关联方法
 - (void)clickToDoSomething
 {
     UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"你点我试试" message:@"" delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"确定",nil];
     [alert show];

 }

 - (void)didReceiveMemoryWarning {
     [super didReceiveMemoryWarning];
     // Dispose of any resources that can be recreated.
 }

 @end