按下和弹起效果的按钮分类(POP实现)

使用POP实现按下/弹起效果的按钮分类。
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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
 
原文地址:https://www.cnblogs.com/ranger-jlu/p/3884236.html