UI12_UItabBarViewController

隐藏标签栏:

在ViewWillAppear中写:

self.tabBarController.tabBar.hidden

AppDelegate.h

#import <UIKit/UIKit.h>

@interface AppDelegate : UIResponder <UIApplicationDelegate>

@property (strong, nonatomic) UIWindow *window;

@end

AppDelegate.m

#import "AppDelegate.h"
#import "firstViewController.h"
#import "secondViewController.h"
#import "thirdViewController.h"
#import "fourthViewController.h"
#import "fifthViewController.h"
#import "sixthViewController.h"

@interface AppDelegate ()<UITabBarControllerDelegate>

@end

@implementation AppDelegate
- (void)dealloc
{
[_window release];
[super dealloc];
}

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];

[_window release];
firstViewController *firstVC = [[firstViewController alloc] init];
UINavigationController *firstnaVC = [[UINavigationController alloc] initWithRootViewController:firstVC];
//  设定tabbarItem的内容
firstnaVC.tabBarItem = [[[UITabBarItem alloc] initWithTabBarSystemItem:UITabBarSystemItemFavorites tag:1000] autorelease];
firstnaVC.tabBarItem.badgeValue = @"+1";

secondViewController *secVC = [[secondViewController alloc] init];
UINavigationController *secNAVC = [[UINavigationController alloc] initWithRootViewController:secVC];
secNAVC.tabBarItem = [[[UITabBarItem alloc] initWithTitle:@"" image:[UIImage imageNamed:@"1" ] selectedImage:[UIImage imageNamed:@"2"]] autorelease];
secNAVC.tabBarItem.badgeValue = @"+2";

thirdViewController *thirdVC = [[thirdViewController alloc] init];
UINavigationController *thirdNAVC = [[UINavigationController alloc] initWithRootViewController:thirdVC];
thirdNAVC.tabBarItem = [[[UITabBarItem alloc] initWithTitle:@"分享" image:[UIImage imageNamed:@"3"] tag:1001] autorelease];
thirdNAVC.tabBarItem.badgeValue = @"+99";

fourthViewController *fourVC = [[fourthViewController alloc] init];
UINavigationController *fourNAVC = [[UINavigationController alloc] initWithRootViewController:fourVC];
fourNAVC.tabBarItem = [[[UITabBarItem alloc] initWithTabBarSystemItem:UITabBarSystemItemContacts tag:1002] autorelease];
fourNAVC.tabBarItem.badgeValue = @"+4";

fifthViewController *fifthVC = [[fifthViewController alloc] init];
UINavigationController *fifthNAVC = [[UINavigationController alloc] initWithRootViewController:fifthVC];
fifthNAVC.tabBarItem = [[[UITabBarItem alloc] initWithTabBarSystemItem:UITabBarSystemItemDownloads tag:1003] autorelease];
fifthNAVC.tabBarItem.badgeValue = @"+5";

sixthViewController *sixVC = [[sixthViewController alloc] init];
UINavigationController *sixNAVC = [[UINavigationController alloc] initWithRootViewController:sixVC];
sixNAVC.tabBarItem = [[[UITabBarItem alloc] initWithTabBarSystemItem:UITabBarSystemItemFeatured tag:1004] autorelease];
sixNAVC.tabBarItem.badgeValue = @"+6";

//
UITabBarController *tab = [[UITabBarController alloc] init];
tab.viewControllers = @[firstnaVC, secNAVC, thirdNAVC, fourNAVC, fifthNAVC, sixNAVC];
self.window.rootViewController = tab;

//  设置外观tabbar
tab.tabBar.translucent = NO;
//  背景颜色
tab.tabBar.barTintColor = [UIColor purpleColor];
//  选中后的图标颜色
tab.tabBar.tintColor = [UIColor blackColor];
//  默认所在位置
tab.selectedIndex = 2;

//  签订协议
tab.delegate = self;

[tab release];
[firstnaVC release];
[firstVC release];
[secVC release];
[secNAVC release];
[thirdVC release];
[thirdNAVC release];
[fourNAVC release];
[fourVC release];
[fifthNAVC release];
[fifthVC release];
[sixNAVC release];
[sixVC release];

return YES;
}
- (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController {
NSLog(@"%ld", tabBarController.selectedIndex);

//    viewController.tabBarItem.badgeValue = nil;
//  大红点
viewController.tabBarItem.badgeValue = @"";

}

firstViewController.h

#import <UIKit/UIKit.h>

@interface firstViewController : UIViewController

@end

firstViewController.m

#import "firstViewController.h"
#import "testViewController.h"

@interface firstViewController ()

@end

@implementation firstViewController

- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
self.view.backgroundColor = [UIColor lightGrayColor];
UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];
button.frame = CGRectMake(100, 100, 150, 50);
[button setTitle:@"推出下一页" forState:UIControlStateNormal];
[self.view addSubview:button];
button.layer.borderWidth = 1;
[button addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];

}
- (void)buttonAction:(UIButton *)button {
testViewController *testVC = [[testViewController alloc] init];
//  推出下一页则隐藏tabbar, 写在推出之前, 目标页面设置这个属性是YES
testVC.hidesBottomBarWhenPushed = YES;
[self.navigationController pushViewController:testVC animated:YES];
[testVC release];
}

testViewcontroller.h

#import <UIKit/UIKit.h>

@interface testViewController : UIViewController

@end

testViewcontroller.m

#import "testViewController.h"

@interface testViewController ()

@end

@implementation testViewController

- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
self.view.backgroundColor = [UIColor whiteColor];

}

SecondViewController ~~~sixthViewController, 依次