IOS一些动画实现

在IOS开发中，避免不了和动画打交道

进度条动画

使用的是UIBezierPath 贝塞尔曲线画进度条及实现动画

进度条

仓库地址：https://xielei1029.coding.net/public/iosdonghuayongli/IOSAnimation/git/files
BargainProcessView文件

背景旋转

旋转.gif

@property (assign,nonatomic)NSTimer* locationTimer;
@property (assign,nonatomic) CGFloat angle;
@property (strong,nonatomic)UIImageView * animationImageView;

  self.locationTimer = [NSTimer scheduledTimerWithTimeInterval: 0.1 target: self selector:@selector(transformAction) userInfo: nil repeats: YES];

-(void)transformAction {
    self.angle = self.angle + 0.1;//angle角度 double angle;
    if (self.angle > 6.28) {//大于 M_PI*2(360度) 角度再次从0开始
        self.angle = 0;
    }
    CGAffineTransform transform = CGAffineTransformMakeRotation(self.angle);
    self.animationImageView.transform = transform;
}

    //开启定时器
   [self.locationTimer setFireDate:[NSDate distantPast]];
  //关闭定时器
    [self.locationTimer setFireDate:[NSDate distantFuture]];

模仿蚂蚁森林收集能量

蚂蚁森林.gif

仓库地址：https://xielei1029.coding.net/public/iosdonghuayongli/IOSAnimation/git/files
BDForestPowerView文件

起搏器效果

// 起搏器
+ (void)setPacceMakerAnimationButton:(UIButton*)sender{
    sender.transform = CGAffineTransformIdentity;
        [UIView animateKeyframesWithDuration:1.0 delay:0 options:UIViewAnimationOptionAutoreverse | UIViewAnimationOptionRepeat animations: ^{
            [UIView addKeyframeWithRelativeStartTime:0 relativeDuration:1/2.0 animations: ^{
                sender.transform = CGAffineTransformMakeScale(0.9, 0.9);
            }];
            [UIView addKeyframeWithRelativeStartTime:1/2.0 relativeDuration:1/2.0 animations: ^{
                sender.transform = CGAffineTransformMakeScale(1.0, 1.0);
            }];
        } completion:nil];
}