POPSpring动画参数详解
效果 源码https://github.com/YouXianMing/Animations////POPSpringParameterController.m//Animations////Created by YouXianMing on 15/11/29.//Copyright © 2015年 YouXianMin
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效果
源码
https://github.com/YouXianMing/Animations
// // POPSpringParameterController.m // Animations // // Created by YouXianMing on 15/11/29. // Copyright © 2015年 YouXianMing. All rights reserved. // #import "POPSpringParameterController.h" #import "RangeValueView.h" #import "UIView+SetRect.h" #import "POP.h" #import "FontAttribute.h" #import "ForegroundColorAttribute.h" #import "NSMutableAttributedString+StringAttribute.h" #define Width [UIScreen mainScreen].bounds.size.width #define Height [UIScreen mainScreen].bounds.size.height @interface POPSpringParameterController () @property (nonatomic, strong) UILabel *secondsLabel; @property (nonatomic, strong) NSDate *dateStart; @property (nonatomic, strong) RangeValueView *rangeSpeed; @property (nonatomic, strong) RangeValueView *rangeBounciness; @property (nonatomic, strong) RangeValueView *rangeMass; @property (nonatomic, strong) RangeValueView *rangeFriction; @property (nonatomic, strong) RangeValueView *rangeTension; @property (nonatomic, strong) UIButton *showView; @end @implementation POPSpringParameterController - (void)viewDidLoad { [super viewDidLoad]; } - (void)setup { [super setup]; [self initSecondLabel]; [self initButton]; [self initRangeViews]; [self bringTitleViewToFront]; } - (void)initSecondLabel { self.secondsLabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 10 + 64, 100, 20)]; self.secondsLabel.attributedText = [self stringWithFloat:0.f]; [self.view addSubview:self.secondsLabel]; } - (NSAttributedString *)stringWithFloat:(CGFloat)value { // 字符串 NSString *stringValue = [NSString stringWithFormat:@"%.2f", value]; NSString *secondString = [NSString stringWithFormat:@"seconds"]; NSString *totalString = [NSString stringWithFormat:@"%@ %@", stringValue, secondString]; // 字体 UIFont *allFont = Font_Avenir(12); UIFont *numFont = Font_Avenir_Light(20); FontAttribute *totalFont = [FontAttribute new]; totalFont.font = allFont; totalFont.effectRange = NSMakeRange(0, totalString.length); FontAttribute *valueFont = [FontAttribute new]; valueFont.font = numFont; valueFont.effectRange = [totalString rangeOfString:stringValue]; ForegroundColorAttribute *textColor = [ForegroundColorAttribute new]; textColor.color = [UIColor grayColor]; textColor.effectRange = NSMakeRange(0, totalString.length); ForegroundColorAttribute *numColor = [ForegroundColorAttribute new]; numColor.color = [UIColor blackColor]; numColor.effectRange = [totalString rangeOfString:stringValue]; NSMutableAttributedString *attributeString = [[NSMutableAttributedString alloc] initWithString:totalString]; [attributeString addStringAttribute:totalFont]; [attributeString addStringAttribute:valueFont]; [attributeString addStringAttribute:textColor]; [attributeString addStringAttribute:numColor]; return attributeString; } - (void)initButton { CGFloat gap = Height - 60 - 40*4 - 64; CGFloat width = 100.f; self.showView = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, width, width)]; self.showView.center = CGPointMake(self.view.middleX, 64 + gap / 2.f); self.showView.backgroundColor = [UIColor cyanColor]; self.showView.layer.cornerRadius = self.showView.width / 2.f; [self.view addSubview:self.showView]; [self.showView addTarget:self action:@selector(doAnimation) forControlEvents:UIControlEventTouchUpInside]; } - (void)doAnimation { // 移除动画 [self.showView.layer pop_removeAllAnimations]; POPSpringAnimation *spring = [POPSpringAnimation animationWithPropertyNamed:kPOPLayerScaleXY]; // 设置代理 spring.delegate = self; // 动画起始值 + 动画结束值 spring.fromValue = [NSValue valueWithCGSize:CGSizeMake(1.f, 1.f)]; spring.toValue = [NSValue valueWithCGSize:CGSizeMake(2.f, 2.f)]; // 参数的设置 spring.springSpeed = self.rangeSpeed.currentValue; spring.springBounciness = self.rangeBounciness.currentValue; spring.dynamicsMass = self.rangeMass.currentValue; spring.dynamicsFriction = self.rangeFriction.currentValue; spring.dynamicsTension = self.rangeTension.currentValue; // 执行动画 [self.showView.layer pop_addAnimation:spring forKey:nil]; } - (void)pop_animationDidStart:(POPAnimation *)anim { self.dateStart = [NSDate date]; } - (void)pop_animationDidApply:(POPAnimation *)anim { CGFloat seconds = -[self.dateStart timeIntervalSinceNow]; self.secondsLabel.attributedText = [self stringWithFloat:seconds]; } - (void)pop_animationDidStop:(POPAnimation *)anim finished:(BOOL)finished { CGFloat seconds = -[self.dateStart timeIntervalSinceNow]; self.secondsLabel.attributedText = [self stringWithFloat:seconds]; } - (void)initRangeViews { self.rangeSpeed = [RangeValueView rangeValueViewWithFrame:CGRectMake(10, Height - 60, Width - 20, 0) name:@"速度 Speed" minValue:0.f maxValue:20.f defaultValue:12.f]; [self.view addSubview:self.rangeSpeed]; self.rangeBounciness = [RangeValueView rangeValueViewWithFrame:CGRectMake(10, Height - 60 - 40, Width - 20, 0) name:@"弹力 Bounciness" minValue:0.f maxValue:20.f defaultValue:4.f]; [self.view addSubview:self.rangeBounciness]; self.rangeMass = [RangeValueView rangeValueViewWithFrame:CGRectMake(10, Height - 60 - 40*2, Width - 20, 0) name:@"质量 Mass" minValue:0.1 maxValue:10.f defaultValue:1.f]; [self.view addSubview:self.rangeMass]; self.rangeFriction = [RangeValueView rangeValueViewWithFrame:CGRectMake(10, Height - 60 - 40*3, Width - 20, 0) name:@"摩擦 Friction" minValue:1 maxValue:50 defaultValue:30.486980]; [self.view addSubview:self.rangeFriction]; self.rangeTension = [RangeValueView rangeValueViewWithFrame:CGRectMake(10, Height - 60 - 40*4, Width - 20, 0) name:@"拉力 Tension" minValue:1 maxValue:1000 defaultValue:300]; [self.view addSubview:self.rangeTension]; } @end
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