ios 导航控制器

1.在AppDelegate.m中

引用

#import "RootViewController.h"

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

// Override point for customization after application launch.

#pragma mark - 配置window

self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];

self.window.backgroundColor = [UIColor whiteColor];

[self.window makeKeyAndVisible];

#pragma mark - 配置根控制器

RootViewController *rootVC = [[RootViewController alloc] init];

// 配置导航控制器

UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:rootVC];

// 配置导航栏

// 1. 设置标题

rootVC.title = @"导航栏";

// 2. 设置颜色

// 2.1 设置主色调

nav.navigationBar.tintColor = [UIColor purpleColor];

// 2.2 设置bar色调

nav.navigationBar.barTintColor = [UIColor redColor];

// 3. 设置背景图片

[nav.navigationBar setBackgroundImage:[UIImage imageNamed:@"nav_bg_ios7"] forBarMetrics:UIBarMetricsDefault];

// 4. 设置标题文本属性

// 4.1 设置阴影

NSShadow *shadow = [[NSShadow alloc] init];

shadow.shadowOffset = CGSizeMake(10, 10);

// 4.2 设置字典

NSDictionary *attributes = @{NSFontAttributeName: [UIFont systemFontOfSize:25], NSForegroundColorAttributeName: [UIColor blueColor], NSShadowAttributeName: shadow};

// 4.3 进行关联

nav.navigationBar.titleTextAttributes = attributes;

self.window.rootViewController = nav;

return YES;

}

2.在RootViewController.m中

//

// ViewController.m

// UI_Lesson4-导航控制器

//

// Created by archerzz on 15/8/17.

// Copyright (c) 2015年 archerzz. All rights reserved.

//

#import "RootViewController.h"

#define BUTTON_ITEM_TAG 100

typedef NS_ENUM(NSInteger, ButtonItem) {

ZHButtonItemRefresh,

ZHButtonItemShare,

ZHButtonItemBackToRoot,

ZHButtonItemNext

};

@interface RootViewController ()

- (void)initUserInterface;

@end

@implementation RootViewController

- (void)viewDidLoad {

[super viewDidLoad];

// Do any additional setup after loading the view, typically from a nib.

[self initUserInterface];

}

- (void)initUserInterface {

self.title = @"推送导航";

// 配置随机背景

CGFloat red = arc4random() % 255 / 255.0;

CGFloat blue = arc4random() % 255 / 255.0;

CGFloat green = arc4random() % 255 / 255.0;

self.view.backgroundColor = [UIColor colorWithRed:red green:green blue:blue alpha:1];

// 1. 创建一个导航按钮

UIBarButtonItem *refreshItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh target:self action:@selector(handleBarEvent:)];

UIBarButtonItem *item = [[UIBarButtonItem alloc] initWithTitle:@"分享" style:UIBarButtonItemStylePlain target:self action:@selector(handleBarEvent:)];

// 设置tag值

refreshItem.tag = BUTTON_ITEM_TAG + ZHButtonItemRefresh;

item.tag = BUTTON_ITEM_TAG + ZHButtonItemShare;

// 2. 进行关联

self.navigationItem.rightBarButtonItems = @[refreshItem, item];

#pragma mark - 工具栏

// 1. 关闭隐藏

self.navigationController.toolbarHidden = NO;

// 2. 创建按钮

UIBarButtonItem *backToRootItem = [[UIBarButtonItem alloc] initWithTitle:@"backToRoot" style:UIBarButtonItemStylePlain target:self action:@selector(handleBarEvent:)];

UIBarButtonItem *nextItem = [[UIBarButtonItem alloc] initWithTitle:@"next" style:UIBarButtonItemStylePlain target:self action:@selector(handleBarEvent:)];

// 2.1 创建弹性按钮

UIBarButtonItem *flexibleItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];

// 3. 关联按钮

self.toolbarItems = @[flexibleItem, backToRootItem, flexibleItem, nextItem, flexibleItem];

backToRootItem.tag = BUTTON_ITEM_TAG + ZHButtonItemBackToRoot;

nextItem.tag = BUTTON_ITEM_TAG + ZHButtonItemNext;

#pragma mark - 配置返回按钮

self.navigationController.navigationBar.backIndicatorImage = [UIImage imageNamed:@"back_btn"];

self.navigationController.navigationBar.backIndicatorTransitionMaskImage = [UIImage imageNamed:@"back_btn"];

UIBarButtonItem *backItem = [[UIBarButtonItem alloc] initWithTitle:@"" style:UIBarButtonItemStylePlain target:nil action:nil];

self.navigationItem.backBarButtonItem = backItem;

}

- (void)handleBarEvent:(UIBarButtonItem *)sender {

NSLog(@"%s", __func__);

if (sender.tag == 100) {

NSLog(@"刷新");

} else {

NSLog(@"分享");

}

ZHButtonItem index = sender.tag - BUTTON_ITEM_TAG;

switch (index) {

case ZHButtonItemRefresh:

NSLog(@"刷新");

break;

case ZHButtonItemShare:

NSLog(@"分享");

break;

case ZHButtonItemNext:

[self next];

break;

case ZHButtonItemBackToRoot:

[self backToRoot];

break;

default:

break;

}

}

- (void)next {

// 1. 创建对象

RootViewController *rootVC = [[RootViewController alloc] init];

NSLog(@"self = %@, roovc = %@", self, rootVC);

// 2. 导航推送

[self.navigationController pushViewController:rootVC animated:YES];

}

- (void)backToRoot {

[self.navigationController popToRootViewControllerAnimated:YES];

}

@end