////  LongTapAnimationView.h//  YouXianMingClock////  Created by YouXianMing on 14-10-13.//  Copyright (c) 2014年 YouXianMing. All rights reserved.//#import <UIKit/UIKit.h>@class LongTapAnimationView;@protocol LongTapAnimationViewDelegate <NSObject>/** *  长按百分比 * *  @param percent 百分比 *  @param view    自身 */- (void)longPressPercentage:(CGFloat)percent view:(LongTapAnimationView *)view;- (void)longPressCompleteWithView:(LongTapAnimationView *)view;@end@interface LongTapAnimationView : UIView/** *  代理 */@property (nonatomic, assign) id<LongTapAnimationViewDelegate> delegate;/** *  百分比 */@property (nonatomic, assign, readonly) CGFloat percent;/** *  缩放比例 */@property (nonatomic, assign) CGFloat  scaleValue;/** *  时候允许按下（默认为YES） */@property (nonatomic, assign) BOOL     canTouch;/** *  长按时间多长时间才能表示已经按下按钮激活事件 */@property (nonatomic, assign) NSTimeInterval completeDurationAfterLongPress;/** *  激活按钮事件 */- (void)activateButtonEffect;@end

////  LongTapAnimationView.m//  YouXianMingClock////  Created by YouXianMing on 14-10-13.//  Copyright (c) 2014年 YouXianMing. All rights reserved.//#import "LongTapAnimationView.h"#import "POP.h"@interface LongTapAnimationView ()<POPAnimationDelegate>@property (nonatomic, strong) UIButton  *button;@end@implementation LongTapAnimationView- (instancetype)initWithFrame:(CGRect)frame{    self = [super initWithFrame:frame];    if (self) {                // 完整显示按住按钮后的动画效果        _button = [[UIButton alloc] initWithFrame:self.bounds];        [self addSubview:_button];                // 按住按钮后没有松手的动画        [_button addTarget:self                    action:@selector(scaleToSmall)          forControlEvents:UIControlEventTouchDown | UIControlEventTouchDragEnter];                // 按住按钮松手后的动画        [_button addTarget:self                    action:@selector(scaleAnimations)          forControlEvents:UIControlEventTouchUpInside];                // 按住按钮后拖拽出去的动画        [_button addTarget:self                    action:@selector(scaleToDefault)          forControlEvents:UIControlEventTouchDragExit];                _button.userInteractionEnabled = NO;    }    return self;}/** *  在设定frame值的时候也设置button的frame值 * *  @param frame 当前view的frame值 */- (void)setFrame:(CGRect)frame {    [super setFrame:frame];    _button.bounds = frame;}- (void)scaleToSmall{        CGFloat tmpScale = (_scaleValue > 0)? _scaleValue : 0.7f;        // 变小尺寸    POPBasicAnimation *scaleAnimation = [POPBasicAnimation animationWithPropertyNamed:kPOPLayerScaleXY];    scaleAnimation.toValue  = [NSValue valueWithCGSize:CGSizeMake(tmpScale, tmpScale)];    scaleAnimation.delegate = self; // 核心    [self.layer pop_addAnimation:scaleAnimation forKey:nil];    [self performSelector:@selector(performSelectorEvent)               withObject:nil               afterDelay:(_completeDurationAfterLongPress > 1.5 ? _completeDurationAfterLongPress : 1.5)];}- (void)scaleToDefault{    // 恢复尺寸    POPBasicAnimation *scaleAnimation = [POPBasicAnimation animationWithPropertyNamed:kPOPLayerScaleXY];    scaleAnimation.toValue  = [NSValue valueWithCGSize:CGSizeMake(1.f, 1.f)];    scaleAnimation.delegate = self; // 核心    [self.layer pop_addAnimation:scaleAnimation forKey:nil];    [NSObject cancelPreviousPerformRequestsWithTarget:self];}- (void)scaleAnimations{    // 恢复尺寸    POPBasicAnimation *scaleAnimation = [POPBasicAnimation animationWithPropertyNamed:kPOPLayerScaleXY];    scaleAnimation.toValue  = [NSValue valueWithCGSize:CGSizeMake(1.f, 1.f)];    scaleAnimation.delegate = self; // 核心    [self.layer pop_addAnimation:scaleAnimation forKey:nil];    [NSObject cancelPreviousPerformRequestsWithTarget:self];}- (void)performSelectorEvent{    if (_delegate) {        [_delegate longPressCompleteWithView:self];    }}/** *  POP动画代理 * *  @param anim 执行动画的那个对象 */- (void)pop_animationDidApply:(POPAnimation *)anim{    NSValue *toValue = http://www.mamicode.com/(NSValue *)[anim valueForKeyPath:@"currentValue"];    CGSize size      = [toValue CGSizeValue];    CGFloat tmpScale = (_scaleValue > 0)? _scaleValue : 0.7f;    _percent         = (size.height - calculateConstant(0, 1, 1, tmpScale))/calculateSlope(0, 1, 1, tmpScale);    if (_delegate) {        [_delegate longPressPercentage:_percent view:self];    }}CGFloat calculateSlope(CGFloat x1, CGFloat y1, CGFloat x2, CGFloat y2){    return (y2 - y1) / (x2 - x1);}CGFloat calculateConstant(CGFloat x1, CGFloat y1, CGFloat x2, CGFloat y2){    return (y1*(x2 - x1) - x1*(y2 - y1)) / (x2 - x1);}- (void)addSubview:(UIView *)view{    [super addSubview:view];        /**     *  如果继承了这个类，则子类不会执行以下方法     */    if ([self class] == [LongTapAnimationView class]) {        [self bringSubviewToFront:_button];    }}- (void)activateButtonEffect{    [self bringSubviewToFront:_button];}#pragma mark - 重写setter，getter方法@synthesize canTouch = _canTouch;- (void)setCanTouch:(BOOL)canTouch {    _canTouch = canTouch;    _button.userInteractionEnabled = canTouch;}- (BOOL)canTouch {    return _canTouch;}@end