一、程序框架
1、程序结构
2、storyboard
一个navigation controller 仅保留最基础部分，其他删除
根视图设置为view controller：
另外两个视图：
二、主要代码
1、ViewController.m中的主要代码
1）- (void)viewDidLoad方法
- (void)viewDidLoad {
[super viewDidLoad];//根视图导航栏左侧和右侧的两个按钮UIBarButtonItem *leftButton =[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAction target:self action:@selector(selectLeftAction:)];
self.navigationItem.leftBarButtonItem=leftButton;
UIBarButtonItem*rightButton =[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(selectRightAction:)];
self.navigationItem.rightBarButtonItem=rightButton;//自定义从下一个视图左上角，“返回”根视图的按钮UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithTitle:@"后退"style:UIBarButtonItemStyleDone target:nil action:nil];
self.navigationItem.backBarButtonItem=backButton;//自定义根视图下方的工具条，可进一步绑定各个按钮的处理函数；只对当前视图有效，切换到其他视图时为空白[self.navigationController setToolbarHidden:NO animated:YES];
UIBarButtonItem*one =[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:nil action:nil];
UIBarButtonItem*two =[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemBookmarks target:nil action:nil];
UIBarButtonItem*three =[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAction target:nil action:nil];
UIBarButtonItem*four =[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemEdit target:nil action:nil];
UIBarButtonItem*flexItem =[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
[self setToolbarItems:[NSArray arrayWithObjects:flexItem, one, flexItem, two, flexItem, three, flexItem, four, flexItem, nil]];
}
2）导航条左侧按钮响应函数
-(void)selectLeftAction:(id)sender
{
UIAlertView*alter = [[UIAlertView alloc] initWithTitle:@"提示"message:@"你点击了导航栏左按钮"delegate:self cancelButtonTitle:@"确定"otherButtonTitles:nil, nil];
[alter show];
}
3）导航条右侧按钮响应函数
-(void)selectRightAction:(id)sender
{
VCSecondView*vcSecondView;
vcSecondView=[self.storyboard instantiateViewControllerWithIdentifier:@"second_view"];
[self.navigationController pushViewController:vcSecondView animated:YES];
}
2、VCSecondView.m中的主要代码
1）- (void)viewDidLoad
- (void)viewDidLoad
{
[super viewDidLoad];//自定义在导航条显示的对第二个视图对描述；//UINavigationController的title可以用别的view替代，比如用UIButton UILable等，此处使用uibuttonUIButton *button =[UIButton buttonWithType: UIButtonTypeRoundedRect];
[button setTitle:@"自定义title"forState: UIControlStateNormal];
[button sizeToFit];
self.navigationItem.titleView=button;//导航栏右侧按钮UIBarButtonItem *rightButton =[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(selectRightAction:)];
self.navigationItem.rightBarButtonItem=rightButton;//自定义从下一个视图左上角，“返回”本视图的按钮UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithTitle:@"后退"style:UIBarButtonItemStyleDone target:nil action:nil];
self.navigationItem.backBarButtonItem=backButton;
}
2）导航条右侧按钮响应函数
-(void)selectRightAction:(id)sender
{
VCThirdView*vcThirdView;
vcThirdView=[self.storyboard instantiateViewControllerWithIdentifier:@"third_view"];
[self.navigationController pushViewController:vcThirdView animated:YES];
}
2、VCThirdView.m中的主要代码
均是默认代码
三、运行测试
1、初始界面
2、单击根视图左侧按钮
3、单击根视图右侧按钮
4、单击第二个视图右侧按钮
四、另外两个功能：不常用
在第二个视图中操作
1、分割功能：UISegmentedControl
1）- (void)viewDidLoad添加如下代码：
- (void)viewDidLoad
{
。。。
NSArray*array = [NSArray arrayWithObjects:@"分割a",@"分割b", nil];
UISegmentedControl*segmentedController =[[UISegmentedControl alloc] initWithItems:array];
segmentedController.segmentedControlStyle=UISegmentedControlSegmentCenter;
[segmentedController addTarget:self action:@selector(segmentAction:) forControlEvents:UIControlEventValueChanged];
self.navigationItem.titleView=segmentedController;
。。。
}
2）分割按钮响应函数：
-(void)segmentAction:(id)sender
{switch([sender selectedSegmentIndex]) {case0:
{
UIAlertView*alter = [[UIAlertView alloc] initWithTitle:@"提示"message:@"你点击了分割a"delegate:self cancelButtonTitle:@"确定"otherButtonTitles:nil, nil];
[alter show];
}
break;case1:
{
UIAlertView*alter = [[UIAlertView alloc] initWithTitle:@"提示"message:@"你点击了分割b"delegate:self cancelButtonTitle:@"确定"otherButtonTitles:nil, nil];
[alter show];
}
break;default:
break;
}
}
3）运行结果：
2、动态加载自定义的toolbar
1）VCSecondView.h
#import<UIKit/UIKit.h>@interfaceVCSecondView : UIViewController
{
UIToolbar*toolBar;
}@end
2）- (void)viewDidLoad中添加如下代码：
UIBarButtonItem *addButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSearch target:self action:nil/*@selector(gotoThridView:)*/];
toolBar= [[UIToolbar alloc] initWithFrame:CGRectMake(0.0, self.view.frame.size.height - toolBar.frame.size.height -44.0, self.view.frame.size.width,44.0)];
[toolBar setBarStyle:UIBarStyleDefault];
toolBar.autoresizingMask=UIViewAutoresizingFlexibleTopMargin;
[toolBar setItems:[NSArray arrayWithObject:addButton]];
[self.view addSubview:toolBar];
3）运行结果：切换到第三个视图过程中右上角有黑色阴影
五、其他
导航栏按钮图标类型：
参考：http://blog.csdn.net/totogo2010/article/details/7681879