渐变色
- 设置颜色
self.navigationController.navigationBar.barTintColor = [UIColor orangeColor];
- 滚动视图时设置透明度
-(void)scrollViewDidScroll:(UIScrollView *)scrollView{
self.navigationController.navigationBar.alpha = scrollView.contentOffset.y/100;
}
设置导航栏统一颜色
if ([UIDevice currentDevice].systemVersion.floatValue >= 7.0) {
[[UINavigationBar appearance] setBarTintColor:RGBACOLOR(78, 188, 211, 1)];
[[UINavigationBar appearance] setTitleTextAttributes:
[NSDictionary dictionaryWithObjectsAndKeys:RGBACOLOR(245, 245, 245, 1), NSForegroundColorAttributeName, [UIFont systemFontOfSize:20.0], NSFontAttributeName, nil]];
}
