如何将多个UIBarButtonItem添加到UINavigationBar？

Question

我想向UIBarButtonItem添加许多UINavigationbar，而不仅仅是左右按钮：

logoButton = [[UIBarButtonItem alloc] initWithTitle:@"A Button" style:UIBarButtonItemStyleBordered target:self action:@selector(logoButtonAClicked:)];

logoButton2 = [[UIBarButtonItem alloc] initWithTitle:@"B Button" style:UIBarButtonItemStyleBordered target:self action:@selector(logoButtonBClicked:)];

logoButto3 = [[UIBarButtonItem alloc] initWithTitle:@"C Button" style:UIBarButtonItemStyleBordered target:self action:@selector(logoButtonCClicked:)];

self.navigationController.navigationBarHidden = NO;

self.title = @"Title";

NSArray* items = [[NSArray alloc] initWithObjects:logoButtonA, logoButtonB, logoButtonC, nil];
self.navigationController.navigationBar.items = items;

我在SIGBRT

上获得self.navigationController.navigationBar.items = items;

如何将多个UIBarButtonItem添加到UINavigationBar？

Answer 1

您需要将UIBarButtonItem个实例添加到UINavigationItem，而不是UINavigationBar。所以你可以这样做：

NSArray *buttonArray = [NSArray arrayWithObjects:logoButton, logoButton2, logoButton3, nil];
self.navigationItem.leftBarButtonItems = buttonArray;

如果您想要右侧的按钮，请使用rightBarButtonItems。

Answer 2

你应该使用

self.navigationItem.leftBarButtonItems = items;

Answer 3

在导航栏中使用addSubView。