IOS如何实现签到散花效果

小编给大家分享一下IOS如何实现签到散花效果，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！

本文讲述了IOS实现签到特效(散花效果)实例代码。分享给大家供大家参考，具体如下：

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

以上是“IOS如何实现签到散花效果”这篇文章的所有内容，感谢各位的阅读！相信大家都有了一定的了解，希望分享的内容对大家有所帮助，如果还想学习更多知识，欢迎关注亿速云行业资讯频道！