Question

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

让我在我目前选择的架构中介绍你：

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

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;
    }

在我的FSCScrumRootView（继承自UIViewController）中，我创建了这样的视图：

- (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; 
}

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]; 
}

这最终会在以下屏幕中显示（因为我想拥有它）： 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？

你的帮助很受欢迎！

Answer 1

尝试自动释放后两个按钮（如第一个按钮）（刷新）。

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];

Answer 2

人们，我找到了解决问题的原因，我不得不说，这是一个非常愚蠢的问题。

该项目的第一行负责所有问题：

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

由于我创建的View只有200x400的大小，因此可以识别出在该视图外部出现的任何事件（虽然一切都可见）。

如果我改变了这个视图的大小，一切都按预期工作：

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得动态屏幕尺寸？

UIBarButtonItem无法点击

2 个答案: