iOS Tabbar的一些设置(背景颜色、点击设置)

设置底部标题点击时的颜色

[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIColor whiteColor],NSForegroundColorAttributeName,nil] forState:UIControlStateNormal];
    
UIColor *titleHighlightedColor = [UIColor whiteColor];
    
[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:titleHighlightedColor, NSForegroundColorAttributeName,nil] forState:UIControlStateSelected];

设置tabbar选中颜色

iOS7设置如下：

1	[self.tabBarController.tabBarsetSelectedImageTintColor:[UIColor greenColor]];

ios8中如下设置：

1	self.tabBar.tintColor=[UIColor greenColor];

消除tabbar边框
在appdelegate的程序启动处：


[[UITabBar appearance] setShadowImage:[[UIImage alloc]init]];

[[UITabBar appearance] setBackgroundImage:[[UIImage alloc]init]];

设置tabbar item原始图标与原始选中图标，而不是系统自动填充的颜色

// 拿到 TabBar 在拿到想应的item
UITabBar *tabBar = _tabBarController.tabBar;
UITabBarItem *item0 = [tabBar.items objectAtIndex:0];
UITabBarItem *item1 = [tabBar.items objectAtIndex:1];
UITabBarItem *item2 = [tabBar.items objectAtIndex:2];
UITabBarItem *item3 = [tabBar.items objectAtIndex:3];
// 对item设置相应地图片
item0.selectedImage = [[UIImage imageNamed:@"recognize-1"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];;
item0.image = [[UIImage imageNamed:@"recognize"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
 
item1.selectedImage = [[UIImage imageNamed:@"life-1"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];;
item1.image = [[UIImage imageNamed:@"life"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
 
item2.selectedImage = [[UIImage imageNamed:@"edit-1"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];;
item2.image = [[UIImage imageNamed:@"edit"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
 
item3.selectedImage = [[UIImage imageNamed:@"setting-1"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];;
item3.image = [[UIImage imageNamed:@"setting"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

设置tabbar背景图片

UIView *backView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, Main_Screen_Width, 49)];
backView.backgroundColor = [UIColor redColor];
[self.tabBar insertSubview:backView atIndex:0];
self.tabBar.opaque = YES;