将图像和标题都添加到导航 backBarButtonItem

Question

我正在尝试向导航控制器的后退按钮添加一个图标（并保留标题）。似乎如果我设置 UIBarButtonItem 的图像它会隐藏标题，所以我想我会尝试自定义视图。我试过了

UIButton* customButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[customButton setImage:[UIImage imageNamed:@"icon"] forState:UIControlStateNormal];
[customButton setTitle:@"Title" forState:UIControlStateNormal];
[customButton setAdjustsImageWhenHighlighted:YES];
[customButton setFrame:CGRectMake(0, 0, 125, 32)];

UIBarButtonItem* backButton = [[UIBarButtonItem alloc] initWithCustomView:customButton];
self.navigationItem.backBarButtonItem = backButton;

但是 Apple 文档说 backBarButtonItem 忽略了自定义视图，所以这不起作用。

我也试过这个：

self.navigationItem.leftBarButtonItem = backButton;
self.navigationItem.hidesBackButton = YES;

但 leftBarButtonItem 过早显示一个屏幕，而 hidesBackButton 似乎没有隐藏 backBarButtonItem。

还有其他方法可以将图像和标题都放到导航 backBarButtonItem 上吗？

Answer 1

首先隐藏UINavigationController提供的后退按钮，使用代码self.navigationItem.hidesBackButton = YES;

并使用以下代码设置带有图像和标题的自己的按钮

UIButton* customButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[customButton setImage:[UIImage imageNamed:@"icon"] forState:UIControlStateNormal];
[customButton setTitle:@"Title" forState:UIControlStateNormal];
[customButton setAdjustsImageWhenHighlighted:YES];
[customButton setFrame:CGRectMake(0, 0, 125, 32)];

UIBarButtonItem* backButton = [[UIBarButtonItem alloc] initWithCustomView:customButton];
self.navigationItem.backBarButtonItem = backButton;