UINavigationBar问题

Question

我在UIView上添加了一个UINavigationBar

我正在尝试设置它的标题，而它的左侧栏标记失败

我使用以下代码

self.title = @"Edit Table ";
UIBarButtonItem *addButton = [[UIBarButtonItem alloc] initWithTitle:@"Edit" style:UIBarButtonItemStyleBordered target:self action:@selector(EditTable:)];
[self.navigationItem setLeftBarButtonItem:addButton];
[super viewDidLoad];

没有任何改变，我使用

称之为uiview

self.NodeSelection = [[NodesList alloc]initWithNibName:@"NodesList" bundle:nil];
[self presentModalViewController:self.NodeSelection animated:YES];

请提出任何建议

Answer 1

<强>更新

使用

调用此视图

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

您可以使用此

更改NavigationBar的标题

self.navigationItem.title = @"Hello";

并且对于leftBarButton，您的代码是正确的。

第二次更新

返回父屏幕

 [self.navigationController popViewControllerAnimated:YES];

Answer 2

UIBarButtonItem *addButton = [[UIBarButtonItem alloc] initWithTitle:@"Edit" style:UIBarButtonItemStylePlain target:self action:@selector(EditTable:)];
[self.navigationItem setLeftBarButtonItem:addButton];
[addButton release];