ios - UIBarbuttonItem 在 ios 7 上没有标题

Question

我有一个应用程序，我正在将其迁移到 iOS 7。但是，UIBarbuttonItem 没有标题，但工作正常。这是我的代码:

UIBarButtonItem * uibbShare = [[[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"sharewhite.png"] style:UIBarButtonItemStylePlain target:self action:@selector(sharePressed:)] autorelease];
// uibbShare.width = 56.0;  // uncommenting this doesn't change anything
uibbShare.title = @"Share";

然后我将其中一些添加到工具栏，中间有一些灵活的空间项。

...
 [items addObject:flex2];
 [items addObject:uibbShare];
...

[self.toolbar setItems:items animated:NO];

在 iOS 7 上它们根本没有标题，在 iOS6 上一切正常。你不能再在 ios7 中创建这样的条形按钮了吗？

更新 开发论坛上同样的问题:

UIBarButtonItem can't have both title and image?

What happened to the text under toolbar icons?

编辑:(7 对 6)

编辑2:(来自Reveal的图片，文字好像没了，frame/bounds都是0.wtf)

Answer 1

最终为 UIBarButtonItems 创建了自定义 View 。这不是很好，但它会暂时起作用。我只是将旧的 UIBarButtonItems 传递给此函数，它会返回一个新的。

注意:如果有标题，我只是向上移动按钮的图像并在下面添加一个简单的标签，实际上并没有搞乱 titleEdgeInsets 和 centering 。另外，我将宽度设置为默认的 56。

-(UIBarButtonItem *)convertToButton:(UIBarButtonItem *)original
{
    if ( SYSTEM_VERSION_LESS_THAN(@"7.0"))
        return  original;

    CGFloat textFieldHeight = 13.f;
    UIButton * button = [UIButton buttonWithType:UIButtonTypeCustom];
    button.frame = CGRectMake(0, 0, 56, self.toolbar.frame.size.height);
    button.showsTouchWhenHighlighted = YES;
    [button setImage:original.image forState:UIControlStateNormal];
    [button addTarget:original.target action:original.action forControlEvents:UIControlEventTouchUpInside];
    button.tag = original.tag;

    UIView * wr = [[[UIView alloc] initWithFrame:CGRectMake(0, 0, 56, self.toolbar.frame.size.height)] autorelease];
    [wr addSubview:button];
    wr.backgroundColor = [UIColor clearColor];

    if (original.title != nil)
    {
        button.imageEdgeInsets = UIEdgeInsetsMake(-7, 0, 0, 0);
        UILabel * l = [[[UILabel alloc] initWithFrame:CGRectMake(0, self.toolbar.frame.size.height - textFieldHeight, 56, textFieldHeight)] autorelease];
        l.font = [UIFont systemFontOfSize:11.f];
        l.backgroundColor = [UIColor clearColor];
        l.textColor = [UIColor lightGrayColor];
        l.textAlignment = UITextAlignmentCenter;
        l.text = original.title;
        [wr addSubview:l];
    }

    UIBarButtonItem * theNew = [[[UIBarButtonItem alloc] initWithCustomView:wr] autorelease];
    theNew.tag = original.tag;
    theNew.width = 56;
    return theNew;

}