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我有一个非常棘手的问题，经过长时间的搜索（谷歌，stackoverflow，...）我没有得到适合我的解决方案。

让我介绍一下我目前选择的架构：

  1. 我有一个 AppDelegate，它有一个包含 UINavigationController 的 UIView 和应用程序 didFinishLaunchingWithOptions: 包含：

    UIView *myView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 200, 400)];
  UIViewController *myController = [[UIViewController alloc] init];
  myController.view = myView;


      FSCScrumRootView * myRootView = [[FSCScrumRootView alloc] initWithNibName:@"FSCScrumRootView" bundle:[NSBundle mainBundle]];

      [myController.view addSubview:myRootView.navigation.view];

      [self.window addSubview:myController.view];

      [self.window makeKeyAndVisible];
      return YES;
    }

  2. 在我的 FSCScrumRootView（从 UIViewController 继承）中，我像这样初始化视图：

    - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil 
{ 
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];

if (self) {
// Custom initialization
self.navigation = [[[UINavigationController alloc] init] autorelease];
self.scrumProjectsList = [[[FSCScrumProjectListView alloc] init] initWithNibName:@"FSCScrumProjectListView" bundle:nil];
[navigation pushViewController:scrumProjectsList animated:YES]; 

[navigation view]; 
} 
return self; 
}

  3. 在我的 FSCScrumProjectListView（它继承自 UITableViewController）中，我实现了 viewDidLoad，如下所示：

    - (void)viewDidLoad 
{ 
[super viewDidLoad]; 

//Set the title 
self.navigationItem.title = @"Scrum Projects";

UIBarButtonItem *myRefreshButton = [[[UIBarButtonItem alloc] initWithTitle:@"Refresh" style:UIBarButtonSystemItemRefresh target:self action:@selector(refreshList)] autorelease]; 
self.navigationItem.leftBarButtonItem = myRefreshButton;

UIBarButtonItem *myLogoutButton = [[UIBarButtonItem alloc] initWithTitle:@"Logout" style:UIBarButtonSystemItemCancel target:self action:@selector(logout)]; 
self.navigationItem.rightBarButtonItem = myLogoutButton;


//Initialize the toolbar
toolbar = [[UIToolbar alloc] init];
toolbar.barStyle = UIBarStyleDefault;

//Set the toolbar to fit the width of the app.
[toolbar sizeToFit];

//Caclulate the height of the toolbar
CGFloat toolbarHeight = [toolbar frame].size.height;

//Get the bounds of the parent view
CGRect rootViewBounds = self.parentViewController.view.bounds;

//Get the height of the parent view.
CGFloat rootViewHeight = CGRectGetHeight(rootViewBounds);

//Get the width of the parent view,
CGFloat rootViewWidth = CGRectGetWidth(rootViewBounds);

//Create a rectangle for the toolbar
CGRect rectArea = CGRectMake(0, rootViewHeight - toolbarHeight, rootViewWidth, toolbarHeight);

//Reposition and resize the receiver
[toolbar setFrame:rectArea];

//Create a button
UIBarButtonItem *infoButton = [[UIBarButtonItem alloc] 
                             initWithTitle:@"Info" style:UIBarButtonItemStyleBordered target:self action:@selector(info_clicked:)];

[toolbar setItems:[NSArray arrayWithObjects:infoButton,nil]];

//Add the toolbar as a subview to the navigation controller.
[self.navigationController.view addSubview:toolbar];

//Reload the table view
[self.tableView reloadData]; 
}

  4. 这最终导致以下屏幕（正如我想要的那样）： View iOS Mockup of current result

问题： 我现在的问题是，我只能点击刷新按钮。无法单击其他两个按钮（信息和注销）。我不明白为什么？我在这里做错了什么？

非常感谢您的帮助！

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2 回答 2

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尝试像第一个按钮（刷新）一样自动释放后两个按钮。

UIBarButtonItem *myLogoutButton = [[[UIBarButtonItem alloc] initWithTitle:@"Logout" style:UIBarButtonSystemItemCancel target:self action:@selector(logout)]autorelease];



UIBarButtonItem *infoButton = [[[UIBarButtonItem alloc] 
                             initWithTitle:@"Info" style:UIBarButtonItemStyleBordered target:self action:@selector(info_clicked:)]autorelease];
于 2011-04-29T14:06:18.007 回答
0

伙计们，我找到了问题的原因，我不得不说，这是一个非常非常愚蠢的问题。

这个项目的第一行负责所有的麻烦：

UIView *myView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 200, 400)];

由于我在那里创建的视图只有 200x400 大小，因此无法识别出现在该视图外部的任何事件（尽管一切都是可见的）。

如果我改变这个视图的大小，一切都会按预期工作：

UIView *myView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 300, 500)];

但更动态的解决方案可能是：

CGRect cgRect =[[UIScreen mainScreen] bounds];
CGSize cgSize = cgRect.size;
UIView *myView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, cgSize.width, cgSize.height)];

也许有更好的解决方案来获取动态屏幕尺寸？

于 2011-05-02T12:36:52.383 回答