iOS开发--一些UITabBarItem属性的设置

1.改变UITabBarItem 字体颜色
[[UITabBarItemappearance]setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIColorwhiteColor],UITextAttributeTextColor,nil]forState:UIControlStateNormal];
[[UITabBarItemappearance]setTitleTextAttributes:[NSDictionarydictionaryWithObjectsAndKeys:[UIColorcolorWithHexString:"#00C8D3"],UITextAttributeTextColor,nil]forState:UIControlStateSelected];


设置tabbarItem选中的颜色为红色
2.改变UITabBarItem 字体颜色和大小

[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIColor blackColor], NSForegroundColorAttributeName, [UIFont fontWithName:@"Helvetica" size:12.0f],NSFontAttributeName,nil] forState:UIControlStateNormal];

[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIColor redColor], NSForegroundColorAttributeName, [UIFont fontWithName:@"Helvetica" size:12.0f],NSFontAttributeName,nil] forState:UIControlStateSelected];


设置UITabBarItem 字体颜色和大小
    这里需要注意的是在设置字体的时候要选择支持中文的字体，不然的话修改字号是无效的，比如字体设置成“ProximaNova-Semibold”，这种字体本身只支持英语的，不支持中文所以使用该字体并不能调整字体大小
3.改变UITabBarItem的选中和非选中图片
UINavigationController *nav1 = [[UINavigationController alloc] initWithRootViewController:[[ServiceProviderViewController alloc] init]];

nav1.tabBarItem.image = [ImageNamed(@"tabicon1_unselect") imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
nav1.tabBarItem.selectedImage = [ImageNamed(@"tabicon1_select") imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
nav1.tabBarItem.title = @"服务商";


改变UITabBarItem的选中和非选中图片
4.改变UITabBarController的颜色

UIView*mView=[[UIViewalloc]initWithFrame:CGRectMake(0,0,320,48)];//这是整个tabbar的颜色

[mViewsetBackgroundColor:[UIColorcolorWithPatternImage:[UIImageimageNamed:@"tabbar.png"]]];
[tab.tabBarinsertSubview:mViewatIndex:1];
mView.alpha=0.8;


设置UITabBar的颜色
5.如何隐藏系统自带的tabbar
有时候有的页面并不需要显示tabbar，但是返回的时候要显示tabbar，举个例子A->B 当A push到 B 时需要设置self.navigationController.hidesBottomBarWhenPushed= YES;


A页面的设置
同时在B页面要
- (void)viewWillAppear:(BOOL)animated
{
[superviewWillAppear:animated];
self.tabBarController.tabBar.hidden=YES;
}
- (void)viewWillDisappear:(BOOL)animated
{
[superviewWillDisappear:animated];
self.tabBarController.tabBar.hidden=NO;
}



作者：寒桥
链接：http://www.jianshu.com/p/a4acb98618b4
來源：简书
著作权归作者所有。商业转载请联系作者获得授权，非商业转载请注明出处。