签到特效（散花效果）

散花特效

#import <Foundation/Foundation.h>

/// 领取奖励成功
@interface RewardSuccess : NSObject
/**
 *  成功动画
 */
+ (void)show;

@end

#import "RewardSuccess.h"
#import "RewardSuccessWindow.h"

#define EmitterColor_Red      [UIColor colorWithRed:255/255.0 green:0 blue:139/255.0 alpha:1]
#define EmitterColor_Yellow   [UIColor colorWithRed:251/255.0 green:197/255.0 blue:13/255.0 alpha:1]
#define EmitterColor_Blue     [UIColor colorWithRed:50/255.0 green:170/255.0 blue:207/255.0 alpha:1]

@implementation RewardSuccess

+ (void)show
{
    UIWindow *window = [UIApplication sharedApplication].keyWindow;

    UIView *backgroundView = [[UIView alloc] initWithFrame:window.bounds];
    backgroundView.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.8];
    [window addSubview:backgroundView];

    RewardSuccessWindow *successWindow = [[RewardSuccessWindow alloc] initWithFrame:CGRectZero];
    [backgroundView addSubview:successWindow];

    //缩放
    successWindow.transform=CGAffineTransformMakeScale(0.01f, 0.01f);
    successWindow.alpha = 0;
    [UIView animateWithDuration:0.4 animations:^{

        successWindow.transform = CGAffineTransformMakeScale(1.0f, 1.0f);
        successWindow.alpha = 1;
    }];

    //3s 消失
    double delayInSeconds = 3;
    dispatch_time_t delayInNanoSeconds = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC);
    dispatch_after(delayInNanoSeconds, dispatch_get_main_queue(), ^(void){

        [UIView animateWithDuration:0.4 animations:^{

            successWindow.transform = CGAffineTransformMakeScale(.3f, .3f);
            successWindow.alpha = 0;

        }completion:^(BOOL finished) {

            [backgroundView removeFromSuperview];
        }];
    });

    //开始粒子效果
    CAEmitterLayer *emitterLayer = addEmitterLayer(backgroundView,successWindow);
    startAnimate(emitterLayer);

}

CAEmitterLayer *addEmitterLayer(UIView *view,UIView *window)
{

    //色块粒子
    CAEmitterCell *subCell1 = subCell(imageWithColor(EmitterColor_Red));
    subCell1.name = @"red";
    CAEmitterCell *subCell2 = subCell(imageWithColor(EmitterColor_Yellow));
    subCell2.name = @"yellow";
    CAEmitterCell *subCell3 = subCell(imageWithColor(EmitterColor_Blue));
    subCell3.name = @"blue";
    CAEmitterCell *subCell4 = subCell([UIImage imageNamed:@"success_star"]);
    subCell4.name = @"star";

    CAEmitterLayer *emitterLayer = [CAEmitterLayer layer];
    emitterLayer.emitterPosition = window.center;
    emitterLayer.emitterPosition = window.center;
    emitterLayer.emitterSize    = window.bounds.size;
    emitterLayer.emitterMode    = kCAEmitterLayerOutline;
    emitterLayer.emitterShape   = kCAEmitterLayerRectangle;
    emitterLayer.renderMode     = kCAEmitterLayerOldestFirst;

    emitterLayer.emitterCells = @[subCell1,subCell2,subCell3,subCell4];
    [view.layer addSublayer:emitterLayer];

    return emitterLayer;

}

void startAnimate(CAEmitterLayer *emitterLayer)
{
    CABasicAnimation *redBurst = [CABasicAnimation animationWithKeyPath:@"emitterCells.red.birthRate"];
    redBurst.fromValue      = [NSNumber numberWithFloat:30];
    redBurst.toValue            = [NSNumber numberWithFloat:  0.0];
    redBurst.duration       = 0.5;
    redBurst.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];

    CABasicAnimation *yellowBurst = [CABasicAnimation animationWithKeyPath:@"emitterCells.yellow.birthRate"];
    yellowBurst.fromValue       = [NSNumber numberWithFloat:30];
    yellowBurst.toValue         = [NSNumber numberWithFloat:  0.0];
    yellowBurst.duration        = 0.5;
    yellowBurst.timingFunction  = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];

    CABasicAnimation *blueBurst = [CABasicAnimation animationWithKeyPath:@"emitterCells.blue.birthRate"];
    blueBurst.fromValue     = [NSNumber numberWithFloat:30];
    blueBurst.toValue           = [NSNumber numberWithFloat:  0.0];
    blueBurst.duration      = 0.5;
    blueBurst.timingFunction    = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];

    CABasicAnimation *starBurst = [CABasicAnimation animationWithKeyPath:@"emitterCells.star.birthRate"];
    starBurst.fromValue     = [NSNumber numberWithFloat:30];
    starBurst.toValue           = [NSNumber numberWithFloat:  0.0];
    starBurst.duration      = 0.5;
    starBurst.timingFunction    = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];

    CAAnimationGroup *group = [CAAnimationGroup animation];
     group.animations = @[redBurst,yellowBurst,blueBurst,starBurst];

    [emitterLayer addAnimation:group forKey:@"heartsBurst"];
}

CAEmitterCell *subCell(UIImage *image)
{
    CAEmitterCell * cell = [CAEmitterCell emitterCell];

    cell.name = @"heart";
    cell.contents = (__bridge id _Nullable)image.CGImage;

    // 缩放比例
    cell.scale      = 0.6;
    cell.scaleRange = 0.6;
    // 每秒产生的数量
    //    cell.birthRate  = 40;
    cell.lifetime   = 20;
    // 每秒变透明的速度
    //    snowCell.alphaSpeed = -0.7;
    //    snowCell.redSpeed = 0.1;
    // 秒速
    cell.velocity      = 200;
    cell.velocityRange = 200;
    cell.yAcceleration = 9.8;
    cell.xAcceleration = 0;
    //掉落的角度范围
    cell.emissionRange  = M_PI;

    cell.scaleSpeed     = -0.05;
    ////    cell.alphaSpeed     = -0.3;
    cell.spin           = 2 * M_PI;
    cell.spinRange      = 2 * M_PI;

    return cell;
}

UIImage *imageWithColor(UIColor *color)
{
    CGRect rect = CGRectMake(0, 0, 13, 17);
    UIGraphicsBeginImageContext(rect.size);
    CGContextRef context = UIGraphicsGetCurrentContext();
    CGContextSetFillColorWithColor(context, [color CGColor]);
    CGContextFillRect(context, rect);

    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return image;
}

@end

领取奖励成功提示框

#import <UIKit/UIKit.h>

/// 领取奖励成功提示框
@interface RewardSuccessWindow : UIView

@end

#import "RewardSuccessWindow.h"
static CGFloat SuccessWindow_width = 270;
static CGFloat SuccessWindow_hight = 170;


@implementation RewardSuccessWindow

- (instancetype)initWithFrame:(CGRect)frame
{
    CGSize screenSize = [UIScreen mainScreen].bounds.size;
    self = [super initWithFrame:CGRectMake((screenSize.width - SuccessWindow_width)/2.0 , (screenSize.height - SuccessWindow_hight)/2.0, SuccessWindow_width, SuccessWindow_hight)];

    if (self)
    {
        [self configSubViews];
    }
    return self;
}
- (void)configSubViews
{
    self.backgroundColor = [UIColor whiteColor];
    self.layer.cornerRadius = 10;
    self.layer.masksToBounds = YES;

    UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 45, SuccessWindow_width, 22)];
    titleLabel.text = @"恭喜您，领取成功！";
    titleLabel.font = [UIFont systemFontOfSize:19.0];
    titleLabel.textAlignment = NSTextAlignmentCenter;
    [self addSubview:titleLabel];

    UILabel *expLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 75, SuccessWindow_width, 43)];
    expLabel.font = [UIFont systemFontOfSize:15];
    expLabel.textAlignment = NSTextAlignmentCenter;
    [self addSubview:expLabel];

    NSString *string = @"获得经验：+6";
    NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:string];
    [attributedString addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:15] range:NSMakeRange(0, string.length)];
    [attributedString addAttribute:NSFontAttributeName value:[UIFont fontWithName:@"MarkerFelt-Thin" size:35] range:NSMakeRange(5,2)];
    NSShadow *shadow =[[NSShadow alloc] init];
    shadow.shadowOffset = CGSizeMake(1, 3);
    [attributedString addAttribute:NSShadowAttributeName value:shadow range:NSMakeRange(5,2)];
    [attributedString addAttribute:NSForegroundColorAttributeName value:[UIColor yellowColor] range:NSMakeRange(5,2)];
    expLabel.attributedText = attributedString;

    UILabel *bottomLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 135, SuccessWindow_width, 22)];
    bottomLabel.text = @"可以在我的->我的奖励中查看获得奖励";
    bottomLabel.font = [UIFont systemFontOfSize:13.0];
    bottomLabel.textAlignment = NSTextAlignmentCenter;
    bottomLabel.textColor = [UIColor colorWithRed:177/255.0 green:177/255.0 blue:177/255.0 alpha:1];

    [self addSubview:bottomLabel];
}

@end