如何更改UISegmentedControl的字体颜色
我尝试将UISegmentedControl字体颜色从白色更改为黑色（对于iOS 4. *）
UISegmentedControl *button = [[[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObjects:itemTitle, nil]] autorelease]; button.momentary = YES; button.segmentedControlStyle = UISegmentedControlStyleBar; button.tintColor = [UIColor redColor]; for (id segment in [button subviews]) { for (id label in [segment subviews]) { if ([label isKindOfClass:[UILabel class]]) { UILabel *titleLabel = (UILabel *) label; [titleLabel setTextColor:[UIColor blackColor]]; } } } UIBarButtonItem *barButtonItem = [[[UIBarButtonItem alloc] initWithCustomView:button] autorelease];
但是文字颜色并没有改变。 我应该做什么来改变UISegmentedControl文字颜色？
在iOS 6.0及以上版本中，这非常简单：
NSDictionary *attributes = [NSDictionary dictionaryWithObjectsAndKeys: [UIFont boldSystemFontOfSize:17], NSFontAttributeName, [UIColor blackColor], NSForegroundColorAttributeName, nil]; [_segmentedControl setTitleTextAttributes:attributes forState:UIControlStateNormal]; NSDictionary *highlightedAttributes = [NSDictionary dictionaryWithObject:[UIColor whiteColor] forKey:NSForegroundColorAttributeName]; [_segmentedControl setTitleTextAttributes:highlightedAttributes forState:UIControlStateSelected];
如果您需要更改iOS 7中突出显示段的文本颜色，请使用以下解决scheme（花了我一些时间寻找，但是感谢这篇文章 ）：
Objective-C的
[[UISegmentedControl appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName : [UIColor blackColor]} forState:UIControlStateSelected];
迅速
let titleTextAttributes = [NSForegroundColorAttributeName: UIColor.whiteColor()] UISegmentedControl.appearance().setTitleTextAttributes(titleTextAttributes, forState: .Selected)
以下是将字体设置为粗体和点大小的代码：
UIFont *Boldfont = [UIFont boldSystemFontOfSize:12.0f]; NSDictionary *attributes = [NSDictionary dictionaryWithObject:Boldfont forKey: NSFontAttributeName]; [segmentedControl setTitleTextAttributes:attributes forState:UIControlStateNormal];
我希望它有帮助
for (UIView *v in [[[segment subviews] objectAtIndex:0] subviews]) { if ([v isKindOfClass:[UILabel class]]) { UILabel *label=(UILabel *)[v retain]; lable.textColor=[UIColor blackColor]; } }
适用于iOS 3.0及以上版本
以防万一，以帮助其他人到达那里，正在使用迅速。
我会把这两种可能的方式做到这一点。 您可以更改UIAppearance的文本属性，或直接在分段中工作。
第一个示例在外观中设置属性，这样您将自定义应用程序中的所有分段控件：
let attributes = [ NSForegroundColorAttributeName : UIColor.grayColor(), NSFontAttributeName : UIFont.systemFontOfSize(20)]; let attributesSelected = [ NSForegroundColorAttributeName : UIColor.blueColor(), NSFontAttributeName : UIFont.systemFontOfSize(20)]; UISegmentedControl.appearance().setTitleTextAttributes(attributes, forState: UIControlState.Normal) UISegmentedControl.appearance().setTitleTextAttributes(attributesSelected, forState: UIControlState.Selected)
第二个例子，直接在分段，将只定制这个分段：
let attributes = [ NSForegroundColorAttributeName : UIColor.grayColor(), NSFontAttributeName : UIFont.systemFontOfSize(20)]; let attributesSelected = [ NSForegroundColorAttributeName : UIColor.blueColor(), NSFontAttributeName : UIFont.systemFontOfSize(20)]; segmented.setTitleTextAttributes(attributes, forState: UIControlState.Normal) segmented.setTitleTextAttributes(attributesSelected, forState: UIControlState.Selected)
在iOS 5.0及更高版本中，您可以使用titleTextAttributes来自定义UISegmentedControl对象：
NSDictionary *segmentedControlTextAttributes = @{NSFontAttributeName:[UIFont fontWithName:@"HelveticaNeue" size:18.0], NSForegroundColorAttributeName:[UIColor whiteColor]}; [self.segmentedControl setTitleTextAttributes:segmentedControlTextAttributes forState:UIControlStateNormal]; [self.segmentedControl setTitleTextAttributes:segmentedControlTextAttributes forState:UIControlStateHighlighted]; [self.segmentedControl setTitleTextAttributes:segmentedControlTextAttributes forState:UIControlStateSelected];
在这里，我将字体设置为UISegmentedControl每个状态的自定义字体，字体大小和颜色。
您将在UISegmentedControl类参考的Customizing Appearance部分中find所有可能的简单自定义 。
迅捷3.2：
let attributes = [ NSFontAttributeName : bigTextFont, NSForegroundColorAttributeName : UIColor.blue, ] segmentedControl?.setTitleTextAttributes(attributes, for: .normal)
注意：如果你使用自定义的背景颜色，你会看到一个angular落里的毛刺（颜色会填满外部片段..），所以使用这些线来剪辑：
segmentedControl!.layer.cornerRadius = 4.0 segmentedControl!.clipsToBounds = true
我使用monotouch。 不知道为什么，但当查看推文字颜色不会改变我。 为了解决这个即时通讯只是添加标签段控制超视图，然后改变他们的颜色：
public static void SetColoredTittles(this UISegmentedControl s, string[] titles, UIColor selected, UIColor notSelected) { var segmentedLabels = new List<UILabel>(); float width = s.Frame.Width/titles.Length; for (int i = 0; i < titles.Length; i++) { var frame = new RectangleF(s.Frame.X + i*width, s.Frame.Y, width,s.Frame.Height); UILabel label = new UILabel(frame); label.TextAlignment = UITextAlignment.Center; label.BackgroundColor = UIColor.Clear; label.Font = UIFont.BoldSystemFontOfSize(12f); label.Text = titles[i]; s.Superview.AddSubview(label); segmentedLabels.Add(label); } s.ValueChanged += delegate { TextColorChange(s,segmentedLabels, selected, notSelected); }; TextColorChange(s,segmentedLabels, selected, notSelected); } static void TextColorChange(UISegmentedControl s, List<UILabel> segmentedLabels, UIColor selected, UIColor notSelected) { for (int i = 0; i < segmentedLabels.Count; i++) { if(i == s.SelectedSegment) segmentedLabels[i].TextColor = selected; else segmentedLabels[i].TextColor = notSelected; } }
然后使用它
segmented.SetColoredTittles(new string[] { "text1", "text2", "text3" }, UIColor.White,UIColor.DarkGray);
