//
// AppDelegate.m
// UI3_UIbarButtonItem
//
// Created by zhangxueming on 15/7/6.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
// #import "AppDelegate.h" @interface AppDelegate () @end @implementation AppDelegate - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch. UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:self.window.rootViewController];
self.window.rootViewController = nav; return YES;
}
//
// ViewController.m
// UI3_UIbarButtonItem
//
// Created by zhangxueming on 15/7/6.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
// #import "ViewController.h"
#import "SecondViewController.h" @interface ViewController () @end @implementation ViewController - (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.view.backgroundColor = [UIColor cyanColor];
//每一个ViewController都对应一个NavigationItem对象
//设置标题
self.navigationItem.title = @"导航控制器";
//设置 self.title 默认把title的值赋值给navigationItem.title
self.title = @"导航导航"; NSLog(@"%@", self.navigationItem.title); UIButton *btn = [UIButton buttonWithType:UIButtonTypeSystem];
btn.frame = CGRectMake(100, 200, self.view.frame.size.width-200, 50);
[btn setTitle:@"点击" forState:UIControlStateNormal];
btn.titleLabel.font = [UIFont boldSystemFontOfSize:24];
[btn addTarget:self action:@selector(btnClicked) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:btn]; } - (void)btnClicked
{
SecondViewController *svc =[[SecondViewController alloc] init];
[self.navigationController pushViewController:svc animated:YES];
} - (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
} @end
//
// SecondViewController.m
// UI3_UIbarButtonItem
//
// Created by zhangxueming on 15/7/6.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
// #import "SecondViewController.h" @interface SecondViewController () @end @implementation SecondViewController - (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
NSLog(@"bar = %@", self.navigationController.navigationBar);
} - (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
self.view.backgroundColor = [UIColor yellowColor]; self.navigationItem.title = @"SecondView";
//设置提白后, navigationBar 的高度变为74
self.navigationItem.prompt = @"提白"; //设置标题视图 UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"musicTitle"]];
//设置标题视图 orgin坐标无效
imageView.frame = CGRectMake(0, 0, 20, 30);
self.navigationItem.titleView = imageView;
NSLog(@"imageView = %@", self.navigationItem.titleView); self.navigationItem.backBarButtonItem.title = @"返回";
NSLog(@"title = %@", self.navigationItem.backBarButtonItem.title); //初始化标题
UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithTitle:@"返回" style:UIBarButtonItemStylePlain target:self action:@selector(backButtonClicked)];
self.navigationItem.leftBarButtonItem = backButton;
//使用系统提供的样式
UIBarButtonItem *systemBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCamera target:self action:@selector(systemBtnClicked)];
self.navigationItem.rightBarButtonItem = systemBtn;
//自定义UIBarButtonItem
UIButton *customBtn = [UIButton buttonWithType:UIButtonTypeCustom];
[customBtn setBackgroundImage:[UIImage imageNamed:@"customImage@2x"] forState:UIControlStateNormal];
customBtn.frame = CGRectMake(0, 0, 22, 22);
[customBtn addTarget:self action:@selector(customBtnClicked) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *customBtnItem = [[UIBarButtonItem alloc] initWithCustomView:customBtn]; NSArray *items = [NSArray arrayWithObjects:customBtnItem,systemBtn, nil];
self.navigationItem.rightBarButtonItems = items; UIBarButtonItem *editBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemEdit target:self action:@selector(editBtnClicked)];
NSArray *leftItems = [NSArray arrayWithObjects:backButton,editBtn, nil];
self.navigationItem.leftBarButtonItems = leftItems;
} - (void)editBtnClicked
{
NSLog(@"编辑按钮被点击");
} - (void)backButtonClicked
{
[self.navigationController popViewControllerAnimated:YES];
} - (void)systemBtnClicked
{
NSLog(@"相机功能被点击");
} - (void)customBtnClicked
{
NSLog(@"自定义按钮被点击");
} - (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
} /*
#pragma mark - Navigation // In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/ @end