任何人都可以告诉我如何更改UISegmentedControl的字体类型和大小？
我遇到了同样的问题。此代码设置整个分段控件的字体大小。类似的东西可能适用于设置字体类型。请注意，这仅适用于iOS5 +
对象C：
UIFont *font = [UIFont boldSystemFontOfSize:12.0f];
NSDictionary *attributes = [NSDictionary dictionaryWithObject:font
forKey:NSFontAttributeName];
[segmentedControl setTitleTextAttributes:attributes
forState:UIControlStateNormal];
编辑：UITextAttributeFont已被弃用 - 请改用NSFontAttributeName。
编辑＃2：对于Swift 4，NSFontAttributeName已经改为NSAttributedStringKey.font。
斯威夫特5：
let font = UIFont.systemFont(ofSize: 16)
segmentedControl.setTitleTextAttributes([NSAttributedString.Key.font: font], for: .normal)
斯威夫特4：
let font = UIFont.systemFont(ofSize: 16)
segmentedControl.setTitleTextAttributes([NSAttributedStringKey.font: font],
for: .normal)
斯威夫特3：
let font = UIFont.systemFont(ofSize: 16)
segmentedControl.setTitleTextAttributes([NSFontAttributeName: font],
for: .normal)
Swift 2.2：
let font = UIFont.systemFontOfSize(16)
segmentedControl.setTitleTextAttributes([NSFontAttributeName: font],
forState: UIControlState.Normal)
感谢@ audrey-gordeev的Swift实现
丹尼尔指出我正确的方法。我用它像这样 -
float scaleFactor = 0.8f;
UISegmentedControl *segmentedControl = [[UISegmentedControl alloc]
initWithFrame:CGRectMake(10, 70, 300/scaleFactor,35)];
[segmentedControl insertSegmentWithTitle:@"..." atIndex:0 animated:NO];
[segmentedControl insertSegmentWithTitle:@"..." atIndex:1 animated:NO];
[segmentedControl insertSegmentWithTitle:@"..." atIndex:2 animated:NO];
segmentedControl.transform = CGAffineTransformMakeScale(scaleFactor, 1);
CGPoint segmentedControlCenter = segmentedControl.center;
segmentedControlCenter.x = self.center.x;
segmentedControl.center = segmentedControlCenter;
斯威夫特4
let font = UIFont.systemFont(ofSize: 16)
UISegmentedControl.setTitleTextAttributes([NSFontAttributeName: font], for: .normal)
用于设置字体大小的UISegmentedControl的扩展名。
extension UISegmentedControl {
@available(iOS 8.2, *)
func setFontSize(fontSize: CGFloat) {
let normalTextAttributes: [NSObject : AnyObject]!
if #available(iOS 9.0, *) {
normalTextAttributes = [
NSFontAttributeName: UIFont.monospacedDigitSystemFontOfSize(fontSize, weight: UIFontWeightRegular)
]
} else {
normalTextAttributes = [
NSFontAttributeName: UIFont.systemFontOfSize(fontSize, weight: UIFontWeightRegular)
]
}
self.setTitleTextAttributes(normalTextAttributes, forState: .Normal)
}
}
UISegmentedControl.appearance().setTitleTextAttributes(NSDictionary(objects: [UIFont.systemFont(ofSize: 16.0)],
forKeys: [kCTFontAttributeName as! NSCopying]) as? [AnyHashable : Any],
for: UIControlState.normal)
您可以通过递归检查以UISegmentedControl开头的每个视图来获取UILabel的实际字体。我不知道这是否是最好的方法，但它确实有效。
@interface tmpSegmentedControlTextViewController : UIViewController {
}
@property (nonatomic, assign) IBOutlet UISegmentedControl * theControl;
@end
@implementation tmpSegmentedControlTextViewController
@synthesize theControl; // UISegmentedControl
- (void)viewDidLoad {
[self printControl:[self theControl]];
[super viewDidLoad];
}
- (void) printControl:(UIView *) view {
NSArray * views = [view subviews];
NSInteger idx,idxMax;
for (idx = 0, idxMax = views.count; idx < idxMax; idx++) {
UIView * thisView = [views objectAtIndex:idx];
UILabel * tmpLabel = (UILabel *) thisView;
if ([tmpLabel respondsToSelector:@selector(text)]) {
NSLog(@"TEXT for view %d: %@",idx,tmpLabel.text);
[tmpLabel setTextColor:[UIColor blackColor]];
}
if (thisView.subviews.count) {
NSLog(@"View has subviews");
[self printControl:thisView];
}
}
}
@end
在上面的代码中我只是设置UILabel的文本颜色，但你可以抓住或设置字体属性我想。
这是为了客观c添加您的分段控件名称代替mysegmentedcontrol
UIFont *font = [UIFont systemFontOfSize:11.0f];
NSDictionary *attributes = [NSDictionary dictionaryWithObject:font
forKey:UITextAttributeFont];
[mySegmentedcontrol setTitleTextAttributes:attributes forState:UIControlStateNormal];
希望能帮助到你
迅速5
let font = UIFont.systemFont（ofSize：16）UISegmentedControl.appearance（）。setTitleTextAttributes（[NSAttributedString.Key.font：font]，for：。normal）
使用iOS 5.0+中的Appearance API：
[[UISegmentedControl appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIFont fontWithName:@"STHeitiSC-Medium" size:13.0], UITextAttributeFont, nil] forState:UIControlStateNormal];
http://www.raywenderlich.com/4344/user-interface-customization-in-ios-5
这是接受答案的Swift版本：
斯威夫特3：
let font = UIFont.systemFont(ofSize: 16)
segmentedControl.setTitleTextAttributes([NSFontAttributeName: font],
for: .normal)
Swift 2.2：
let font = UIFont.systemFontOfSize(16)
segmentedControl.setTitleTextAttributes([NSFontAttributeName: font],
forState: UIControlState.Normal)
另一种选择是将变换应用于控件。但是，它会缩小包括控制边框在内的所有内容。
segmentedControl.transform = CGAffineTransformMakeScale(.6f, .6f);
斯威夫特风格：
UISegmentedControl.appearance().setTitleTextAttributes(NSDictionary(objects: [UIFont.systemFontOfSize(14.0)], forKeys: [NSFontAttributeName]), forState: UIControlState.Normal)
这里我更新了iOS8
[[UISegmentedControl appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIFont fontWithName:@"STHeitiSC-Medium" size:13.0], NSFontAttributeName, nil] forState:UIControlStateNormal];
XCode 8.1，Swift 3
import UIKit
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
UISegmentedControl.appearance().setTitleTextAttributes(NSDictionary(objects: [UIFont.systemFont(ofSize: 24.0)],
forKeys: [NSFontAttributeName as NSCopying]) as? [AnyHashable : Any],
for: UIControlState.normal)
}
}
只需更改数值(ofSize: 24.0)
// Set font-size and font-femily the way you want
UIFont *objFont = [UIFont fontWithName:@"DroidSans" size:18.0f];
// Add font object to Dictionary
NSDictionary *dictAttributes = [NSDictionary dictionaryWithObject:objFont forKey:NSFontAttributeName];
// Set dictionary to the titleTextAttributes
[yourSegment setTitleTextAttributes:dictAttributes forState:UIControlStateNormal];
如果您有任何疑问，请与我联系。
C＃/存储：
segment.SetTitleTextAttributes(new UITextAttributes {
Font = UIFont.SystemFontOfSize(font_size) }, UIControlState.Normal);