按下和弹起效果的按钮分类（POP实现）

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//

//  UIButton+SpringTouch.h

//  JCiOSProjectSample

//

//  Created by jimple on 14/7/28.

//  Copyright (c) 2014年 JimpleChen. All rights reserved.

//

#import <UIKit/UIKit.h>

@interface UIButton (SpringTouch)

- (void)initSpringTouch;

- (void)removeSpringTouch;

@end

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

//

//  UIButton+SpringTouch.m

//  JCiOSProjectSample

//

//  Created by jimple on 14/7/28.

//  Copyright (c) 2014年 JimpleChen. All rights reserved.

//

#import "UIButton+SpringTouch.h"

#import <POP.h>

@implementation UIButton (SpringTouch)

- (void)initSpringTouch

{

    [self addTarget:self action:@selector(springTouchBtnTouchDown:) forControlEvents:UIControlEventTouchDown];

    [self addTarget:self action:@selector(springTouchBtnTouchUp:) forControlEvents:UIControlEventTouchUpInside|UIControlEventTouchUpOutside];

}

- (void)removeSpringTouch

{

    [self removeTarget:self action:@selector(springTouchBtnTouchDown:) forControlEvents:UIControlEventTouchDown];

    [self removeTarget:self action:@selector(springTouchBtnTouchUp:) forControlEvents:UIControlEventTouchUpInside|UIControlEventTouchUpOutside];

}

- (void)springTouchBtnTouchDown:(id)sender

{

    UIView *btn = (UIView *)sender;

    POPSpringAnimation *animation = [POPSpringAnimation animationWithPropertyNamed:kPOPLayerScaleXY];

    animation.toValue = [NSValue valueWithCGPoint:CGPointMake(0.9, 0.9)];

    animation.springBounciness = 10;

    [btn.layer pop_addAnimation:animation forKey:@"ZoomOutY"];

}

- (void)springTouchBtnTouchUp:(id)sender

{

    UIView *btn = (UIView *)sender;

    [btn.layer pop_removeAnimationForKey:@"ZoomOutY"];

    POPSpringAnimation *animation = [POPSpringAnimation animationWithPropertyNamed:kPOPLayerScaleXY];

    animation.toValue = [NSValue valueWithCGPoint:CGPointMake(1, 1)];

    animation.springBounciness = 10;

    [btn.layer pop_addAnimation:animation forKey:@"ZoomOutYReverse"];

}

@end