OC 导航控制器

最新推荐文章于 2019-10-14 17:08:39 发布

Mister 甘

最新推荐文章于 2019-10-14 17:08:39 发布

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CC 4.0 BY-SA版权

本文链接：https://blog.youkuaiyun.com/gzGod/article/details/50791199

本文通过示例代码详细介绍了如何使用Objective-C创建和管理导航控制器，包括如何初始化导航控制器，实现页面间的push和pop操作，以及设置导航条上的左右按钮和自定义标题视图。同时，还展示了如何隐藏和显示工具栏，以及使用不同系统按钮类型的UIBarButtonItem。

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关键代码：

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

// Override point for customization after application launch.

self.window=[[UIWindowalloc]initWithFrame:[[UIScreenmainScreen]bounds]];

ViewController *pVCtrl=[[ViewControlleralloc]init];

UINavigationController *pNgCtrl=[[UINavigationControlleralloc]initWithRootViewController:pVCtrl];

[self.windowsetRootViewController:pNgCtrl];

[self.windowmakeKeyAndVisible];

return YES;

}

ViewControl 代码

-(void)clickBtn:(UIButton*)sender{

SencondViewController *pSCtrl=[[SencondViewControlleralloc]init];

[self.navigationControllerpushViewController:pSCtrl animated:YES];

}

SeccondViewControl 代码

-(void)hidden:(UIButton *)sender{

[self.navigationControllerpopToRootViewControllerAnimated:YES];

}

关于导航器中应用工具栏案例

// SencondViewController.m

// NavigationDemo

// Created by ganzhou on 16/3/3.

#import "SencondViewController.h"

@interface SencondViewController ()

@end

static int flag=1;

@implementation SencondViewController

- (void)viewDidLoad {

[super viewDidLoad];

// Do any additional setup after loading the view.

UIView *pView=[[UIView alloc]initWithFrame:CGRectMake(0, 0, 320, 480)];

pView.backgroundColor=[UIColor greenColor];

// UIButton *pBtn=[UIButton buttonWithType:UIButtonTypeRoundedRect];

// pBtn.frame=CGRectMake(100, 200, 120, 50);

// pBtn.backgroundColor=[UIColor redColor];

// [pBtn setTitle:@"HiddenOrShow" forState:UIControlStateNormal];

// [pBtn addTarget:self action:@selector(hidden:) forControlEvents:UIControlEventTouchUpInside];

// [pView addSubview:pBtn];

UIButton *push=[UIButton buttonWithType:UIButtonTypeRoundedRect];

push.frame=CGRectMake(100, 150, 120, 50);

push.backgroundColor=[UIColor redColor];

[push setTitle:@"push" forState:UIControlStateNormal];

[push addTarget:self action:@selector(push:) forControlEvents:UIControlEventTouchUpInside];

[pView addSubview:push];

UIButton *pop=[UIButton buttonWithType:UIButtonTypeRoundedRect];

pop.backgroundColor=[UIColor redColor];

pop.frame=CGRectMake(100, 300, 120, 50);

[pop setTitle:@"pop" forState:UIControlStateNormal];

[pop addTarget:self action:@selector(pop:) forControlEvents:UIControlEventTouchUpInside];

[pView addSubview:pop];

UIBarButtonItem *left=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemBookmarks target:self action:@selector(study)];

self.navigationItem.leftBarButtonItem=left;

UIButton *rightBtn=[UIButton buttonWithType:UIButtonTypeRoundedRect];

rightBtn.backgroundColor=[UIColor redColor];

rightBtn.frame=CGRectMake(0, 0, 60, 30);

[rightBtn setTitle:@"学习" forState:UIControlStateNormal];

[rightBtn addTarget:self action:@selector(sheet) forControlEvents:UIControlEventTouchUpInside];

UIBarButtonItem *right=[[UIBarButtonItem alloc]initWithCustomView:rightBtn];

self.navigationItem.rightBarButtonItem=right;

UIView *pTitle=[[UIView alloc]initWithFrame:CGRectMake(0, 0, 100, 30)];

pTitle.backgroundColor=[UIColor orangeColor];

self.navigationItem.titleView=pTitle;

self.view=pView;

self.flag=flag++;

self.title=[NSString stringWithFormat:@"tile : %d",self.flag];

// UIButton *btn1=[UIButton buttonWithType:UIButtonTypeRoundedRect];

// btn1.backgroundColor=[UIColor redColor];

// [btn1 setTitle:@"" forState:<#(UIControlState)#>]

UIBarButtonItem *save=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemSave target:nil action:nil];

UIBarButtonItem *edit=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemEdit target:nil action:nil];

UIBarButtonItem *add=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:nil action:nil];

UIBarButtonItem *cancel=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemCancel target:nil action:nil];

UIBarButtonItem *done=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:nil action:nil];

UIBarButtonItem *reply=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemReply target:nil action:nil];

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

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

UIBarButtonItem *fixedSpace=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];

UIView *my=[[UIView alloc]initWithFrame:CGRectMake(0, 0, 100, 40)];

my.backgroundColor=[UIColor blueColor];

UIBarButtonItem *myItem=[[UIBarButtonItem alloc]initWithCustomView:my];

// NSArray *items=@[save,fixedSpace,edit,flexibleSpace,add,flexibleSpace,cancel];//,cancel,done,reply,action];

NSArray *items=@[save,edit,add,myItem];

// UIToolbar *toolBar=[[UIToolbar alloc]initWithFrame:CGRectMake(0, 436, 320, 44)];

// toolBar.backgroundColor=[UIColor orangeColor];

// [toolBar setItems:items animated:YES];

// [self.view addSubview:toolBar];

[self.navigationController setToolbarHidden:NO];

[self setToolbarItems:items animated:YES];

}

-(void)study{

UIAlertView *alert=[[UIAlertView alloc]initWithTitle:@"恭喜" message:@"早生贵子" delegate:nil cancelButtonTitle:@"关闭" otherButtonTitles:@"其他", nil];

[alert show];

}

-(void)sheet{

UIActionSheet *pAction=[[UIActionSheet alloc]initWithTitle:@"恭喜" delegate:nil cancelButtonTitle:@"关闭" destructiveButtonTitle:@"哈哈" otherButtonTitles:@"其他", nil];

[pAction showInView:self.view];

}

-(void)push:(UIButton *)sender{

SencondViewController *pSVCtrl=[[SencondViewController alloc]init];

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

}

-(void)pop:(UIButton *)sender{

// [self.navigationController popViewControllerAnimated:YES];

[self.navigationController popToRootViewControllerAnimated:YES];

}

-(void)viewWillAppear:(BOOL)animated{

[super viewWillAppear:animated];

// [self.navigationController setToolbarHidden:NO animated:YES];

// [self.navigationController setNavigationBarHidden:NO animated:YES];

}

-(void)hidden:(UIButton *)sender{

[self.navigationController popToRootViewControllerAnimated:YES];

// [self.navigationController popToRootViewControllerAnimated:YES];

}

- (void)didReceiveMemoryWarning {

[super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

-(void)dealloc{

NSLog(@"ctrol flag = %d",self.flag );

}

#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