GXSlideSegmentController 介绍
看了仿网易新闻侧滑视图的例子都不是很满足我要的效果，就自己写了个，侧滑视图容器上下联动。
使用方法：
NSMutableArray *vcs = [NSMutableArray array];
for (int i = 0; i < 10; i++) {
UIViewController *vc = [[UIViewController alloc] init];
vc.title = [NSString stringWithFormat:@"%d", i];
vc.view.backgroundColor = [UIColor colorWithRed:((255.0 * (i%2)) / 255) green:((255.0 * ((i+1)%2)) / 255) blue:((255.0 * ((i+2)%2)) / 255) alpha:1];
[vcs addObject:vc];
}
GXSlideSegmentController *slideSegmentController = [[GXSlideSegmentController alloc] initWithViewControllers:vcs];
slideSegmentController.title = @"GXSlideSegmentController";
slideSegmentController.indicatorInsets = UIEdgeInsetsMake(0, 8, 0, 8);
slideSegmentController.indicator.backgroundColor = [UIColor redColor];
slideSegmentController.indicator.layer.cornerRadius = slideSegmentController.indicator.frame.size.height/2;
[self.navigationController pushViewController:slideSegmentController animated:YES]