自定义导航栏背景图片和颜色

来源：互联网发布：武汉学编程多久编辑：程序博客网时间：2024/05/16 00:41

首先准备导航栏背景图片，大小 320x44, @2x文件大小640x88，iOS5以后更改背景图片较简单

    UINavigationBar *navBar = self.navigationController.navigationBar;       #define kSCNavBarImageTag 10    if ([navBar respondsToSelector:@selector(setBackgroundImage:forBarMetrics:)])    {        //if iOS 5.0 and later        [navBar setBackgroundImage:[UIImage imageNamed:@"navbar1.png"] forBarMetrics:UIBarMetricsDefault];    }    else    {        UIImageView *imageView = (UIImageView *)[navBar viewWithTag:kSCNavBarImageTag];        if (imageView == nil)        {            imageView = [[UIImageView alloc] initWithImage:                         [UIImage imageNamed:@"navbar1.png"]];            [imageView setTag:kSCNavBarImageTag];            [navBar insertSubview:imageView atIndex:0];            [imageView release];        }    }

更改颜色，可以使用tintColor属性

myBar.tintColor = [UIColor greenColor];