是否可以更改选项卡的字体大小？
问问题
34902 次
11 回答
61
我推荐一个更好的方法：
[yourTabBarItem setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:
[UIColor whiteColor], UITextAttributeTextColor,
[NSValue valueWithUIOffset:UIOffsetMake(0,0)], UITextAttributeTextShadowOffset,
[UIFont fontWithName:@"Helvetica" size:18.0], UITextAttributeFont, nil]
forState:UIControlStateNormal];
于 2011-12-28T05:20:33.923 回答
20
for(UIViewController *tab in self.tabBarController.viewControllers)
{
[tab.tabBarItem setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:
[UIFont fontWithName:@"Helvetica" size:20.0], UITextAttributeFont, nil]
forState:UIControlStateNormal];
}
于 2012-01-25T06:56:25.477 回答
15
在斯威夫特 2.0
override func viewDidLoad() {
super.viewDidLoad()
let appearance = UITabBarItem.appearance()
let attributes: [String: AnyObject] = [NSFontAttributeName:UIFont(name: "American Typewriter", size: 12)!, NSForegroundColorAttributeName: UIColor.orangeColor()]
appearance.setTitleTextAttributes(attributes, forState: .Normal)
}
在 Swift 3.0 中
override func viewDidLoad() {
super.viewDidLoad()
let appearance = UITabBarItem.appearance()
let attributes: [String: AnyObject] = [NSFontAttributeName:UIFont(name: "American Typewriter", size: 12)!, NSForegroundColorAttributeName: UIColor.orange]
appearance.setTitleTextAttributes(attributes, for: .normal)
}
于 2016-05-09T12:58:25.183 回答
9
[更新] iOS 7.0+ 版本@cancer86 的好答案：
[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:
[UIColor whiteColor], NSForegroundColorAttributeName,
[UIFont fontWithName:@"Helvetica" size:tabFontSize],
NSFontAttributeName,
nil] forState:UIControlStateNormal];
[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:
[UIColor redColor], NSForegroundColorAttributeName,
[UIFont fontWithName:@"Helvetica" size:tabFontSize], NSFontAttributeName,
nil] forState:UIControlStateSelected];
主要变化是 UITextAttributeTextColor 和 UITextAttributeFont 都被弃用了
为了将其应用于所有选项卡（感谢@ToolmakerSteve 指出）
for(UIViewController *tab in self.tabBarController.viewControllers)
{
[tab.tabBarItem setTitleTextAttributes: ...];
}
于 2014-12-05T17:48:22.620 回答
7
在 iOS 5.0 或更高版本中很简单：
[[UITabBarItem appearance] setTitleTextAttributes:@{UITextAttributeFont:[UIFont boldSystemFontOfSize:15]} forState:UIControlStateNormal];
于 2014-03-17T01:05:13.450 回答
5
TabBarIncreaseFonts(self.tabBarController);
void TabBarIncreaseFonts(UITabBarController* customTabBarController)
{
for(UIView* controlLevelFirst in [customTabBarController.tabBar subviews])
{
if(![controlLevelFirst isKindOfClass:NSClassFromString(@"UITabBarButton")])
continue;
for(id controlLevelSecond in [controlLevelFirst subviews])
{
[controlLevelSecond setBounds: CGRectMake(0, 0, 100, 48)];
if(![controlLevelSecond isKindOfClass:NSClassFromString(@"UITabBarButtonLabel")])
continue;
[controlLevelSecond setFont: [UIFont boldSystemFontOfSize:20]];
[controlLevelSecond setFrame: CGRectMake(0, 0, 96, 48)];
[controlLevelSecond setTextAlignment:UITextAlignmentCenter];
}
}
}
于 2011-07-13T19:44:58.800 回答
1
[将其留在这里供我自己参考，只是对其他工作答案的即兴演奏。对于mem来说，这是对iOS 7的修复，这有点超出了问题...]
@implementation UITabBarController (Util)
- (void) fixForIos7 {
if (!IS_IOS7)
return;
UIFont *tabBarFont = [UIFont systemFontOfSize:12];
NSDictionary *titleTextAttributes = [NSDictionary dictionaryWithObjectsAndKeys:
tabBarFont, UITextAttributeFont, nil];
for(UIViewController *tab in self.viewControllers) {
[tab.tabBarItem setTitleTextAttributes:titleTextAttributes forState:UIControlStateNormal];
}
}
@end
缺少的方法是
#define IS_IOS7 ( UIDevice.currentDevice.systemVersion.floatValue > 6.9 )
于 2013-08-19T23:30:36.563 回答
1
在斯威夫特 4
override func viewDidLoad() {
super.viewDidLoad()
let appearance = UITabBarItem.appearance()
let attributes: [NSAttributedString.Key: AnyObject] = [NSAttributedString.Key(rawValue: NSAttributedString.Key.font.rawValue):UIFont(name: "American Typewriter", size: 12)!, NSAttributedString.Key(rawValue: NSAttributedString.Key.foregroundColor.rawValue): UIColor.orange]
appearance.setTitleTextAttributes(attributes, for: .normal)
}
于 2019-06-11T06:00:37.270 回答
1
我认为这在 Swift 中可以清楚地控制标签栏颜色和文本属性。
class MyTabBarController: UITabBarController {
override func viewDidLoad() {
super.viewDidLoad()
tabBar.barTintColor = UIColor.green
UITabBarItem.appearance().setTitleTextAttributes(
[NSAttributedString.Key.font:UIFont.boldSystemFont(ofSize: 18),
NSAttributedString.Key.foregroundColor: UIColor.orange], for: .normal)
...
于 2019-10-06T21:50:01.983 回答
0
其实是有办法的。
NSMutableArray *tabBarItems = [[[[[self.view subviews] objectAtIndex:1] subviews] mutableCopy] autorelease];
for (int item = 0; item < [tabBarItems count]; item++) {
for (int subview = 0; subview < [[[tabBarItems objectAtIndex:item] subviews] count]; subview++) {
for (int item = 0; item < [tabBarItems count]; item++) {
for (int subview = 0; subview < [[[tabBarItems objectAtIndex:item] subviews] count]; subview++) {
if ([[[[tabBarItems objectAtIndex:item] subviews] objectAtIndex:subview] isKindOfClass:NSClassFromString(@"UITabBarButtonLabel")])
[[[[tabBarItems objectAtIndex:item] subviews] objectAtIndex:subview] setFont:[UIFont systemFontOfSize:6.0f]];
}
}
}
}
于 2010-07-12T15:47:58.497 回答
0
Xcode 13 和 Swift 5+
您可以从自定义扩展类更改选项卡栏项目字体属性。
例如，
- 创建一个扩展文件（.swift）并放置以下代码
导入 UIKit
@IBDesignable
extension UITabBarItem {
@IBInspectable var fontSize : CGFloat{
set{
if(newValue > 0){
let barItemFontAttributes = [NSAttributedString.Key.font : UIFont(name: "Avenir", size: newValue)]
self.setTitleTextAttributes(barItemFontAttributes as [NSAttributedString.Key : Any], for: .normal)
}
}
get{
return self.fontSize
}
}
- 现在您可以从属性检查器更改字体大小
如果有更好的方法请提及！
于 2021-09-01T13:53:31.933 回答