xcode 如何移动 UITabBarItem 的标题？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/10448130/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How to move title of UITabBarItem?
提问by iWizard
Can somebody tell me please how can I move title of UITabBarItem for example 2px to top?
有人可以告诉我如何将 UITabBarItem 的标题（例如 2px）移动到顶部？
回答by iWizard
Solution:
解决方案：
UITabBarItem *item = [tabBar.items objectAtIndex:0];
item.titlePositionAdjustment = UIOffsetMake(0, -5.0);
回答by Ibrahim
回答by Iraniya Naynesh
Swift 4 Like me, if you are creating tab bar controller inside some other controller just after adding all controller you can loop through the tab bar items and change title and positioning and font
Swift 4 像我一样，如果您在添加所有控制器后在其他控制器中创建标签栏控制器，您可以循环浏览标签栏项目并更改标题、定位和字体
for (index,tabBarItem) in tabBarController.tabBar.items!.enumerated() {
tabBarItem.image = nil //if you only want title and no Image
tabBarItem.title = titleArray[index] //setting your title based on some array
let attributes = [NSAttributedStringKey.font: UIFont.systemFont(ofSize: 20)] // changeing font and height of the text
tabBarItem.setTitleTextAttributes(attributes, for: .normal)
tabBarItem.titlePositionAdjustment = UIOffset(horizontal: 0, vertical: -10.0) // updating the title positon
}
回答by Abeer Iqbal
You can use tabbarItem.titlePositionAdjustmentto adjust.
可以tabbarItem.titlePositionAdjustment用来调整。
In case you want to do much more with that then access tabbaritem subview and find label on tabbar.subviews. For example
如果您想用它做更多事情，请访问 tabbaritem 子视图并在 上找到标签tabbar.subviews。例如
int i = 0;
for (NSObject *view in self.tabBar.subviews)
{
MTLog(@"%@", view);
if ([view respondsToSelector:@selector(subviews)])
{
for (NSObject *childView in ((UIView *)view).subviews)
{
if ([childView isKindOfClass:[UILabel class]])
{
if (i > (titlesArray.count - 1))
break;
UILabel *label = (UILabel *)childView;
NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:titlesArray[i] attributes:@{
NSFontAttributeName:[UIFont systemFontOfSize:9]
}];
NSMutableParagraphStyle *style = [[NSMutableParagraphStyle alloc] init];
[style setMinimumLineHeight:26];
[style setAlignment:NSTextAlignmentRight];
[attributedString addAttribute:NSParagraphStyleAttributeName
value:style
range:NSMakeRange(0, attributedString.length)];
label.attributedText = attributedString;
i++;
}
}
}
}
回答by liamnichols
You can't... you might be able to hack your way around it but that wouldn't be easy and could break your app on future iOS updates.
你不能......你可能能够绕过它，但这并不容易，并且可能会在未来的 iOS 更新中破坏你的应用程序。
Best bet would be to create your own UITabBar system... heres a good guide you could take a look at..
最好的办法是创建自己的 UITabBar 系统......这是一个很好的指南，你可以看看......
http://idevrecipes.com/2011/01/04/how-does-the-twitter-iphone-app-implement-a-custom-tab-bar/
http://idevrecipes.com/2011/01/04/how-does-the-twitter-iphone-app-implement-a-custom-tab-bar/
