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如何更改UISegmentedControl的字体颜色

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UISegmentedControl 尝试将字体颜色从白色更改为黑色（适用于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];

但文字颜色没有改变 . 我应该怎么做才能更改 UISegmentedControl 的文字颜色？

iphone objective-c cocoa-touch uisegmentedcontrol

10 回答

  • 4

    迅捷3.2：

    let attributes = [
                          NSFontAttributeName : bigTextFont,
                          NSForegroundColorAttributeName : UIColor.blue,
                          ]         
segmentedControl?.setTitleTextAttributes(attributes, for: .normal)

    注意：如果您使用自定义背景颜色，您将在角落中看到一个小故障（颜色将填充外部区段..），因此请使用这些线条剪辑它：

    segmentedControl!.layer.cornerRadius = 4.0
segmentedControl!.clipsToBounds = true
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  • 9

    更新为Swift 4 - 使用此扩展（因为扩展总是很棒.. !!）

    extension UISegmentedControl {

func defaultConfiguration(font: UIFont = UIFont.systemFont(ofSize: 12), color: UIColor = UIColor.gray) {
    let defaultAttributes = [
        NSAttributedStringKey.font.rawValue: font,
        NSAttributedStringKey.foregroundColor.rawValue: color
    ]
    setTitleTextAttributes(defaultAttributes, for: .normal)
}

func selectedConfiguration(font: UIFont = UIFont.boldSystemFont(ofSize: 12), color: UIColor = UIColor.red) {
    let selectedAttributes = [
        NSAttributedStringKey.font.rawValue: font,
        NSAttributedStringKey.foregroundColor.rawValue: color
    ]
    setTitleTextAttributes(selectedAttributes, for: .selected)
}
}

    从各自的类，你可以使用这些功能，

    @IBOutlet weak var segment: UISegmentedControl!

segment.defaultConfiguration()
// or provide paramater as per your requirement
segment.selectedConfiguration(color: .blue)
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  • 63

    在iOS 6.0及更高版本中，它非常简单：

    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];
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  • 1

    如果您需要更改iOS 7中突出显示的片段的文本颜色，这里有一个解决方案（花了我一段时间才找到，但thanks to this post）：

    Objective-C

    [[UISegmentedControl appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName : [UIColor blackColor]} forState:UIControlStateSelected];

    Swift

    let titleTextAttributes = [NSForegroundColorAttributeName: UIColor.whiteColor()]  
  UISegmentedControl.appearance().setTitleTextAttributes(titleTextAttributes, forState: .Selected)
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  • 2

    下面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];

    我希望它有所帮助

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  • 7

    Swift 4代码将状态字体颜色设置为黑色

    let titleTextAttributes = [NSAttributedStringKey.foregroundColor: UIColor.black]
    segmentedControl.setTitleTextAttributes(titleTextAttributes, for: .normal)
    segmentedControl.setTitleTextAttributes(titleTextAttributes, for: .selected)
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  • 29
    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及更高版本

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  • 115

    以防万一到达那里，并使用swift工作 .

    我会提出两种可行的方法 . 您可以更改 UIAppearance 中的文本属性，也可以直接更改您正在分段的文本属性 .

    第一个示例在外观中设置属性，这样您就可以自定义应用中的所有分段控件：

    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)

    直接在分段中的第二个示例将仅自定义此分段：

    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)
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  • 4

    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，我将字体设置为自定义字体，字体大小， UISegmentedControl 的每个状态的颜色 .

    您将在UISegmentedControl类参考的Customizing Appearance部分中找到所有可能的简单自定义 .

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  • 4

    我正在使用monotouch . 不知道为什么，但是当推送View时，文字颜色对我来说没有变化 . 为了解决这个问题，我只需在分段控制超视图中添加标签，然后更改颜色：

    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);
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