ios 更改 tabbaritem 的字体大小
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Changing font size of tabbaritem
提问by 4thSpace
Is it possible to change the font size of tabs?
是否可以更改选项卡的字体大小？
回答by Cancer86
I recommend a better way:
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];
回答by spatil
for(UIViewController *tab in self.tabBarController.viewControllers)
{
[tab.tabBarItem setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:
[UIFont fontWithName:@"Helvetica" size:20.0], UITextAttributeFont, nil]
forState:UIControlStateNormal];
}
回答by Ashok R
IN Swift 2.0
在斯威夫特 2.0 中
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)
}
In Swift 3.0
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)
}
回答by voghDev
[Update] iOS 7.0+ version of @cancer86's nice answer:
[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];
The main change is that UITextAttributeTextColor and UITextAttributeFont are both deprecated
主要的变化是 UITextAttributeTextColor 和 UITextAttributeFont 都被弃用了
In order to apply it to all tabs (thanks to @ToolmakerSteve for pointing out)
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: ...];
}
回答by Fei Yang
Simple in iOS 5.0 or later:
iOS 5.0 或更高版本中的简单：
[[UITabBarItem appearance] setTitleTextAttributes:@{UITextAttributeFont:[UIFont boldSystemFontOfSize:15]} forState:UIControlStateNormal];
回答by horea
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];
}
}
}
回答by Sreeraj VR
IN Swift 4
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)
}
回答by Dan Rosenstark
[leaving this here for my own reference, just a riff off the other working answers. For mem it's a fix for iOS 7, which is beyond the question by a bit...]
[把这个留在这里供我自己参考，只是对其他工作答案的即兴演奏。对我来说，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
the missing method is
缺少的方法是
#define IS_IOS7 ( UIDevice.currentDevice.systemVersion.floatValue > 6.9 )
回答by Gi-lo
Actually there is a way.
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]];
}
}
}
}
回答by Jan Bergstr?m
I think this in Swift gives a clear control over the tab bar colors and text attributes.
我认为这在 Swift 中提供了对标签栏颜色和文本属性的清晰控制。
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)
...
