使用方式
1.手动拉入AnimatedLoaders文件夹
2.cocoapods: pod 'ZYAnimatedLoader', '~> 0.0.4'
ZYAnimator *animator = [[ZYAnimator alloc] initAnimateWithType:ZYAnimateTypeLineCenterY tintColor:[UIColor redColor]];
animator.frame = CGRectMake(0, 0, 100, 100);
[animator startAnimation];
[self.view addSubview:animator];