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如何使 leftBarButtonItem 看起来像 backBarButtonItem？

发布于 2024-12-04 09:57:54 字数 184 浏览 1 评论 0原文

默认解决方案不合适：

要更改以前的 ViewController 标题 - 我需要创建自己的函数来控制按钮触摸
以创建 leftBarButtonItem 并隐藏 backBarButtonItem - leftBarButtonItem 看起来不像默认的 backBarButtonItem。

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一念一轮回 2024-12-11 09:57:54

这是一个创建自定义 leftBarButtonItem 的示例：

UIImage *buttonImage = [UIImage imageNamed:@"backbutton.png"];
UIButton *aButton = [UIbutton buttonWithType:UIButtonTypeCustom];
[aButton setImage:buttonImage forState:UIControlStateNormal];
aButton.frame = CGRectMake(0.0,0.0,buttonImage.size.width,buttonImage.size.height);
[aButton addTarget:self action:@selector(aSelector) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithCustomView:aButton];
self.navigationItem.leftButtonItem = backButton;

希望它有帮助...

编辑：

试试这个...

UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"yourimage.jpg"] style:UIBarButtonItemStyleBordered target:self action:@selector(aSelector)];
self.navigationItem.leftBarButtonItem = backButton;

我不记得后退按钮是什么类型的按钮，尝试将默认样式更改为其他。祝你好运！

Here's an example to create a custom leftBarButtonItem:

UIImage *buttonImage = [UIImage imageNamed:@"backbutton.png"];
UIButton *aButton = [UIbutton buttonWithType:UIButtonTypeCustom];
[aButton setImage:buttonImage forState:UIControlStateNormal];
aButton.frame = CGRectMake(0.0,0.0,buttonImage.size.width,buttonImage.size.height);
[aButton addTarget:self action:@selector(aSelector) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithCustomView:aButton];
self.navigationItem.leftButtonItem = backButton;

Hope it helps...

Edit:

Try this...

UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"yourimage.jpg"] style:UIBarButtonItemStyleBordered target:self action:@selector(aSelector)];
self.navigationItem.leftBarButtonItem = backButton;

I don't remember what type of button is the backbutton, try to change the default style to other. Good luck!

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七堇年 2024-12-11 09:57:54

只需创建一个自定义 barbuttonitem 并使用类似于后退按钮项目的图片对其进行自定义即可。
您可以从导航堆栈中的视图控制器获取其文本。

然后处理水龙头以实现所需的效果

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单调的奢华 2024-12-11 09:57:54

您可以将自定义视图指定为导航控制器的栏按钮，如下所示：

UIBarButtonItem *customItem = [[UIBarButtonItem alloc] initWithCustomView:yourCustomizedControl];
[yourCustomizedControl release];

self.navigationItem.leftBarButtonItem = customItem;
[customItem release];

检查此 Apple 文档以获取更详细的说明。

You can assign your custom views as the bar buttons to your navigation controller, like this:

UIBarButtonItem *customItem = [[UIBarButtonItem alloc] initWithCustomView:yourCustomizedControl];
[yourCustomizedControl release];

self.navigationItem.leftBarButtonItem = customItem;
[customItem release];

Check this Apple documentation for a more detailed explanation, if you want.

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零度° 2024-12-11 09:57:54

这是添加类似后退按钮的技巧：

UINavigationItem* backNavigationItem = [[UINavigationItem alloc] initWithTitle:@"Back"];
[_navigationBar pushNavigationItem:backNavigationItem animated:NO];
[backNavigationItem release];

您可以通过这种方式添加更多项目（例如标题、右键）：

UINavigationItem *navigationItem = [[UINavigationItem alloc] initWithTitle:@"Title"];
navigationItem.rightBarButtonItem = // Some UIBarButtonItem
[_navigationBar pushNavigationItem:navigationItem animated:NO];
[navigationItem release];

Here is a hack to add a back-like button:

UINavigationItem* backNavigationItem = [[UINavigationItem alloc] initWithTitle:@"Back"];
[_navigationBar pushNavigationItem:backNavigationItem animated:NO];
[backNavigationItem release];

You can add more items (such like title, right button) this way:

UINavigationItem *navigationItem = [[UINavigationItem alloc] initWithTitle:@"Title"];
navigationItem.rightBarButtonItem = // Some UIBarButtonItem
[_navigationBar pushNavigationItem:navigationItem animated:NO];
[navigationItem release];

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