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上篇说到了添加UIBarButtonItem，接下来说说界面切换；
1、首先我们在刚才的RootViewController中添加一个按钮用来实现跳转：
打开RootViewController.m(我就继续写了)，添加一个跳转button：
效果图：
2、button动作实现，新建一个NewViewController继承自UIViewController；用pushViewController到navigationController中去；
#import "NewViewController.h"
- (void)nextAction{ NewViewController *NewVC = [[NewViewController alloc] init]; [self.navigationController pushViewController:NewVC animated:YES]; NewVC.title = @"NewViewController"; }
点击button,如图Back为系统自带按钮；
如果不想使用系统自带按钮，我们可以自定义按钮：
UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithTitle:@"返回"style:UIBarButtonItemStyleDone target:nil action:nil]; self.navigationItem.backBarButtonItem = backButton;
如图：
3、title的自定义：
1 #import "NewViewController.h" 2 3 @interface NewViewController () 4 5 @end 6 7 @implementation NewViewController 8 9 - (void)viewDidLoad { 10 [super viewDidLoad]; 11 // Do any additional setup after loading the view. 12 13 UILabel *title = [[UILabel alloc] init]; 14 title.text = @"标题"; 15 title.font = [UIFont systemFontOfSize:20]; 16 [title sizeToFit]; 17 self.navigationItem.titleView = title; 18 19 }
效果图：
4、如果想放置多个按钮：
NSArray *colorArray = @[@"黑", @"白", @"灰"]; UISegmentedControl *segmentCtrl = [[UISegmentedControl alloc] initWithItems:colorArray]; segmentCtrl.selectedSegmentIndex = 1; segmentCtrl.tintColor = [UIColor redColor]; self.navigationItem.titleView = segmentCtrl;
效果图：
添加点击响应事件：
[segmentCtrl addTarget:self action:@selector(segmentAction:) forControlEvents:UIControlEventValueChanged];
- (void)segmentAction:(id)segment{ switch ([segment selectedSegmentIndex]) { case 0: { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示" message:@"您选择了颜色黑" delegate:self cancelButtonTitle:@"是" otherButtonTitles:@"否", nil]; [alert show]; } break; case 1: { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示" message:@"您选择了颜色白" delegate:self cancelButtonTitle:@"是" otherButtonTitles:@"否", nil]; [alert show]; } break; case 2: { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示" message:@"您选择了颜色灰" delegate:self cancelButtonTitle:@"是" otherButtonTitles:@"否", nil]; [alert show]; } break; default: break; } }
效果图：
ios基础篇（十一）——UINavgationController的使用（二）页面切换
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原文地址：http://www.cnblogs.com/0320y/p/5045554.html
