如何添加多个UIBarButtonItem到UINavigationBar？ [英] How can I add multiple UIBarButtonItem's to a UINavigationBar?

问题描述

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

I want to add many UIBarButtonItem's to a UINavigationbar, not just right and left buttons:

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<$ c上获得 SIGBRT $ c> self.navigationController.navigationBar.items = items;

I get a SIGBRT on self.navigationController.navigationBar.items = items;

如何添加多个 UIBarButtonItem s到 UINavigationBar ？

推荐答案

将 UIBarButtonItem 实例添加到 UINavigationItem ，而不是 UINavigationBar 。所以你可以这样做：

You need to add UIBarButtonItem instance to a UINavigationItem, not to a UINavigationBar. So you can do this as:

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 。

If you want your buttons on the right, use rightBarButtonItems.

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