IOS-手势

//
//  RQHViewController.m
//  Demo
//
//  Created by apple on 15-1-5.
//  Copyright (c) 2015年 __MyCompanyName__. All rights reserved.
//

#import "RQHViewController.h"

@implementation RQHViewController
@synthesize smallView;

- (void)viewDidLoad
{
    [super viewDidLoad];
   
    //捏合
    UIPinchGestureRecognizer *pinch = [[UIPinchGestureRecognizer alloc]initWithTarget:self action:@selector(pinchGesture:)];
    [self.smallView addGestureRecognizer:pinch];
   
    //滑动
    UIPanGestureRecognizer *tap = [[UIPanGestureRecognizer alloc]initWithTarget:self action:@selector(tapGesture:)];
    [self.smallView addGestureRecognizer:tap];
   
    //旋转
    UIRotationGestureRecognizer *rotain = [[UIRotationGestureRecognizer alloc]initWithTarget:self action:@selector(rotationGesture:)];
    [self.smallView addGestureRecognizer:rotain];
   
    //长按
    UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc]initWithTarget:self action:@selector(longPressGesture:)];
    [self.smallView addGestureRecognizer:longPress];
}

- (void)pinchGesture:(UIPinchGestureRecognizer* )gesture
{
    switch (gesture.state) {
        case UIGestureRecognizerStateChanged:
        {
            UIView *view = gesture.view;
            view.frame = CGRectInset(view.frame, (1 - gesture.scale) *CGRectGetWidth(view.frame),                         (1 - gesture.scale) * CGRectGetHeight(view.frame));
            [gesture setScale:1.0f];
        }
            break;
           
        default:
            break;
    }
}

- (void)tapGesture:(UIPanGestureRecognizer *)gesture
{
    switch (gesture.state) {
        case UIGestureRecognizerStateChanged:
        {
            CGPoint point = [gesture translationInView:gesture.view];
            UIView *view = gesture.view;
            view.frame = CGRectOffset(view.frame, point.x, point.y);
            [gesture setTranslation:CGPointZero inView:view];        }
            break;
           
        default:
            break;
    }   
}

- (void)rotationGesture:(UIRotationGestureRecognizer *)gesture
{
    switch (gesture.state) {
        case UIGestureRecognizerStateChanged:
        {
            UIView *view = gesture.view;
            view.transform = CGAffineTransformMakeRotation(gesture.rotation);
        }
            break;
           
        default:
            break;
    }
}

- (void)longPressGesture:(UILongPressGestureRecognizer *)gesture
{
    switch (gesture.state) {
        case UIGestureRecognizerStateBegan:
        {
            UIMenuItem *item = [[UIMenuItem alloc]initWithTitle:@"hi" action:@selector(reset:)];
            UIMenuController* menuController = [UIMenuController sharedMenuController];          
            menuController.menuItems = [NSArray arrayWithObject:item];
            [menuController setTargetRect:CGRectMake(gesture.view.center.x, gesture.view.center.y, 0, 0) inView:self.view];
            [menuController setMenuVisible:YES animated:YES];
        }
            break;
           
        default:
            break;
    }
   
}

- (void)reset:(UIMenuItem *)item
{
    NSLog(@"------------hehehehe");
}

//longPress需要写这个方法才能显示
- (BOOL)canBecomeFirstResponder {
    return YES;
}

@end