TabBar控制器和导航栏

问题描述：

我需要使用Tab Bar控制器和一些视图控制器来构建应用程序，我已经完成了几乎所有的代码，现在我遇到了从第一个TableView中推送视图控制器的问题（在第一个图像中）因为我可以隐藏标签栏，但不能用相对后退按钮显示我的导航栏。TabBar控制器和导航栏

我只是问在这里，如果有人可以帮助我，也许解释我如何建立在IB（和代码）的结构，只是结构，因为我所做的所有休息。谢谢！

image of the App structure

答

为了有UITableView的在你第一个窗口，你将不得不让你的.h文件中是的UITableViewController的子类和所有必要的方法添加到您的m

FirstViewController.h

@interface FirstViewController : UITableViewController { 

} 

@end

FirstViewController.m

#import "FirstViewController.h" 


@implementation FirstViewController 

- (id)initWithStyle:(UITableViewStyle)style 
{ 
    self = [super initWithStyle:style]; 
    if (self) { 
     // Custom initialization 
    } 
    return self; 
} 

- (void)dealloc 
{ 
    [super dealloc]; 
} 

- (void)didReceiveMemoryWarning 
{ 
    // Releases the view if it doesn't have a superview. 
    [super didReceiveMemoryWarning]; 

    // Release any cached data, images, etc that aren't in use. 
} 

#pragma mark - View lifecycle 

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 

    // Uncomment the following line to preserve selection between presentations. 
    // self.clearsSelectionOnViewWillAppear = NO; 

    // Uncomment the following line to display an Edit button in the navigation bar for this view controller. 
    // self.navigationItem.rightBarButtonItem = self.editButtonItem; 
} 

- (void)viewDidUnload 
{ 
    [super viewDidUnload]; 
    // Release any retained subviews of the main view. 
    // e.g. self.myOutlet = nil; 
} 

- (void)viewWillAppear:(BOOL)animated 
{ 
    [super viewWillAppear:animated]; 
} 

- (void)viewDidAppear:(BOOL)animated 
{ 
    [super viewDidAppear:animated]; 
} 

- (void)viewWillDisappear:(BOOL)animated 
{ 
    [super viewWillDisappear:animated]; 
} 

- (void)viewDidDisappear:(BOOL)animated 
{ 
    [super viewDidDisappear:animated]; 
} 

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation 
{ 
    // Return YES for supported orientations 
    return (interfaceOrientation == UIInterfaceOrientationPortrait); 
} 

#pragma mark - Table view data source 

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView 
{ 
#warning Potentially incomplete method implementation. 
    // Return the number of sections. 
    return 0; 
} 

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section 
{ 
#warning Incomplete method implementation. 
    // Return the number of rows in the section. 
    return 0; 
} 

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    static NSString *CellIdentifier = @"Cell"; 

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; 
    if (cell == nil) { 
     cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; 
    } 

    // Configure the cell... 

    return cell; 
} 

/* 
// Override to support conditional editing of the table view. 
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    // Return NO if you do not want the specified item to be editable. 
    return YES; 
} 
*/ 

/* 
// Override to support editing the table view. 
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    if (editingStyle == UITableViewCellEditingStyleDelete) { 
     // Delete the row from the data source 
     [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade]; 
    } 
    else if (editingStyle == UITableViewCellEditingStyleInsert) { 
     // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view 
    } 
} 
*/ 

/* 
// Override to support rearranging the table view. 
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath 
{ 
} 
*/ 

/* 
// Override to support conditional rearranging of the table view. 
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    // Return NO if you do not want the item to be re-orderable. 
    return YES; 
} 
*/ 

#pragma mark - Table view delegate 

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    // Navigation logic may go here. Create and push another view controller. 
    /* 
    <#DetailViewController#> *detailViewController = [[<#DetailViewController#> alloc] initWithNibName:@"<#Nib name#>" bundle:nil]; 
    // ... 
    // Pass the selected object to the new view controller. 
    [self.navigationController pushViewController:detailViewController animated:YES]; 
    [detailViewController release]; 
    */ 
} 

@end

现在，您将在第一个视图中看到桌面视图。然后你要推的下一个观点是这样的：

NextViewController *next = [[NextViewController alloc] initWithNibName:@"NextViewController" bundle:nil]; 
[next setTitle:@"Next View"]; 
[self.navigationController pushViewController:next animated:YES]; 
[next release];

谢谢，那帮了我！现在我不确定这是否可以在我的所有应用程序中运行，但我在这里.. – 2011-03-16 06:47:52

答

NavigationViewController和TabViewController，他们都是容器视图控制器。所以你必须了解他们的层次结构。

根据你的图片，我认为你应该使用的外部视图是TabBarViewController。

首先，将它作为rootviewcontroller添加到窗口对象中。

UITabBarController*tabCtrl = [[UITabBarController] alloc] init]; 
self.window.rootViewController = tabCtrl;

第二，将第一个视图controlelr作为UINavigationController，然后将其添加到tabbarcontroller中。

UINavigationController *firstCtrl = UINavigationController init... 
firstCtrl.rootViewController = firstTableViewController// this is the table view that you want to show on the first tab.

TabBar控制器和导航栏

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