UITabBarController的使用----底部导航

//

//  AppDelegate.m

//  UITabBarController9-11

//

//  Created by liuyafang on 14-9-11.

//  Copyright (c) 2014年 lanou3g.com 蓝鸥科技. All rights reserved.

//

#import "AppDelegate.h"

#import "FirstViewController.h"

#import "SecondViewController.h"

#import "ThirdViewController.h"

#import "FourthViewController.h"

#import "FifthViewController.h"

#import "SixthViewController.h"

@implementation AppDelegate

- (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];

    //UITabBarController的使用

    UITabBarController *tabVC = [[UITabBarController alloc] init];

    self.window.rootViewController = tabVC;  //把UITabBarController设置为根试图控制器

 

    

    FirstViewController *firetVC = [[FirstViewController alloc] init];

    firetVC.title = @"一";

    firetVC.tabBarItem.image = [UIImage imageNamed:@"6.png"];

    //1.(初始化)直接调用系统图标 和tag值

    firetVC.tabBarItem = [[UITabBarItem alloc] initWithTabBarSystemItem:UITabBarSystemItemSearch tag:100];

    

  

    

    SecondViewController *secondVC = [[SecondViewController alloc] init];

    secondVC.title = @"二";

    secondVC.tabBarItem.image = [UIImage imageNamed:@"5.png"];

    //2.(初始化)标题不变  图片点击后会改变

    secondVC.tabBarItem = [[UITabBarItem alloc] initWithTitle:@"hehe" image:[UIImage imageNamed:@"6.png"] selectedImage:[UIImage imageNamed:@"5.png"]];

    

    

    

    

    ThirdViewController *thirdVC = [[ThirdViewController alloc] init];

    thirdVC.title = @"三";

    thirdVC.tabBarItem.image = [UIImage imageNamed:@"4.png"];

    //3.(初始化)标题可变,图标可变,还有tag值

    thirdVC.tabBarItem = [[UITabBarItem alloc] initWithTitle:@"嘻嘻" image:[UIImage imageNamed:@"4.png"] tag:200];

    

    

    FourthViewController *fourthVC = [[FourthViewController alloc] init];

    fourthVC.title = @"四";

    fourthVC.tabBarItem.image = [UIImage imageNamed:@"3.png"];

//    //保持图片原有形态加入到tabBar中

//    UIImage *image = [UIImage imageNamed:@"aa.png"];

//    //对图片进行处理

//    image = [image imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

//    fourthVC.tabBarItem = [[UITabBarItem alloc] initWithTitle:@"嘻嘻" image:[UIImage imageNamed:@"aa.png"] tag:300];

    

    

    

    

    FifthViewController *fifthVC = [[FifthViewController alloc] init];

    fifthVC.title = @"五";

    fifthVC.tabBarItem.image = [UIImage imageNamed:@"1.png"];

//    SixthViewController *sixthVC = [[SixthViewController alloc] init];

    

    

    

    

    //把UINavigationController和tabBar结合起来

    //1.把第一个VC设置为navVC的根试图控制器

    //2.banavVC视图控制器存放到数组中

    UINavigationController *navVC = [[UINavigationController alloc] initWithRootViewController:firetVC];

    

    

    

    //创建一个试图控制器的数组

    NSArray *array = [NSArray arrayWithObjects:navVC, secondVC, thirdVC, fourthVC, fifthVC,  nil];

    //把数组放到tabBarController中

    tabVC.viewControllers = array;

    //调整tabBer的颜色

    tabVC.tabBar.backgroundColor = [UIColor cyanColor];

    //字体选中后的颜色

    tabVC.tabBar.tintColor = [UIColor redColor];

    //调整bar模糊效果

    tabVC.tabBar.translucent = YES;

    

    

    [tabVC release];

    

    [_window release];

    return YES;

}

- (void)dealloc

{

    [_window release];

    [super dealloc];

}

- (void)applicationWillResignActive:(UIApplication *)application

{

    // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.

    // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.

}

- (void)applicationDidEnterBackground:(UIApplication *)application

{

    // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later. 

    // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.

}

- (void)applicationWillEnterForeground:(UIApplication *)application

{

    // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.

}

- (void)applicationDidBecomeActive:(UIApplication *)application

{

    // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.

}

- (void)applicationWillTerminate:(UIApplication *)application

{

    // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.

}

@end