如何在uiLabel中同时包含粗体和非粗体文本?
我宁愿不用UIWebView..我也读过这个可能使用NSAttributedString但我不知道如何使用它。什么好主意吗?
苹果在他们的几个应用程序中实现了这一点; 例子截图:
谢谢! ——Dom
如何在uiLabel中同时包含粗体和非粗体文本?
我宁愿不用UIWebView..我也读过这个可能使用NSAttributedString但我不知道如何使用它。什么好主意吗?
苹果在他们的几个应用程序中实现了这一点; 例子截图:
谢谢! ——Dom
当前回答
这招对我很管用:
CGFloat boldTextFontSize = 17.0f;
myLabel.text = [NSString stringWithFormat:@"%@ 2012/10/14 %@",@"Updated:",@"21:59 PM"];
NSRange range1 = [myLabel.text rangeOfString:@"Updated:"];
NSRange range2 = [myLabel.text rangeOfString:@"21:59 PM"];
NSMutableAttributedString *attributedText = [[NSMutableAttributedString alloc] initWithString:myLabel.text];
[attributedText setAttributes:@{NSFontAttributeName:[UIFont boldSystemFontOfSize:boldTextFontSize]}
range:range1];
[attributedText setAttributes:@{NSFontAttributeName:[UIFont boldSystemFontOfSize:boldTextFontSize]}
range:range2];
myLabel.attributedText = attributedText;
对于Swift版本:见这里
其他回答
这招对我很管用:
CGFloat boldTextFontSize = 17.0f;
myLabel.text = [NSString stringWithFormat:@"%@ 2012/10/14 %@",@"Updated:",@"21:59 PM"];
NSRange range1 = [myLabel.text rangeOfString:@"Updated:"];
NSRange range2 = [myLabel.text rangeOfString:@"21:59 PM"];
NSMutableAttributedString *attributedText = [[NSMutableAttributedString alloc] initWithString:myLabel.text];
[attributedText setAttributes:@{NSFontAttributeName:[UIFont boldSystemFontOfSize:boldTextFontSize]}
range:range1];
[attributedText setAttributes:@{NSFontAttributeName:[UIFont boldSystemFontOfSize:boldTextFontSize]}
range:range2];
myLabel.attributedText = attributedText;
对于Swift版本:见这里
这在Interface Builder中很容易做到:
1)在属性检查器中设置UILabel为Attributes
2)选择你想加粗的部分短语
3)在字体选择器中更改其字体(或相同字体的粗体)
这是所有!
在这种情况下,你可以尝试,
UILabel *displayLabel = [[UILabel alloc] initWithFrame:/*label frame*/];
displayLabel.font = [UIFont boldSystemFontOfSize:/*bold font size*/];
NSMutableAttributedString *notifyingStr = [[NSMutableAttributedString alloc] initWithString:@"Updated: 2012/10/14 21:59 PM"];
[notifyingStr beginEditing];
[notifyingStr addAttribute:NSFontAttributeName
value:[UIFont systemFontOfSize:/*normal font size*/]
range:NSMakeRange(8,10)/*range of normal string, e.g. 2012/10/14*/];
[notifyingStr endEditing];
displayLabel.attributedText = notifyingStr; // or [displayLabel setAttributedText: notifyingStr];
我刚刚在我的项目中实现的以下代码不需要NSRange(在Swift中):
//Code sets label (yourLabel)'s text to "Tap and hold(BOLD) button to start recording."
let boldAttribute = [
//You can add as many attributes as you want here.
NSFontAttributeName: UIFont(name: "HelveticaNeue-Bold", size: 18.0)!
]
let regularAttribute = [NSFontAttributeName: UIFont(name: "HelveticaNeue-Light", size: 18.0)!]
let beginningAttributedString = NSAttributedString(string: "Tap and ", attributes: regularAttribute )
let boldAttributedString = NSAttributedString(string: "hold ", attributes: boldAttribute)
let endAttributedString = NSAttributedString(string: "button to start recording.", attributes: regularAttribute )
let fullString = NSMutableAttributedString()
fullString.appendAttributedString(beginningAttributedString)
fullString.appendAttributedString(boldAttributedString)
fullString.appendAttributedString(endAttributedString)
yourLabel.attributedText = fullString
试试UILabel上的分类:
下面是它的用法:
myLabel.text = @"Updated: 2012/10/14 21:59 PM";
[myLabel boldSubstring: @"Updated:"];
[myLabel boldSubstring: @"21:59 PM"];
这是分类
UILabel h +及。
- (void) boldSubstring: (NSString*) substring;
- (void) boldRange: (NSRange) range;
UILabel + Boldify.m
- (void) boldRange: (NSRange) range {
if (![self respondsToSelector:@selector(setAttributedText:)]) {
return;
}
NSMutableAttributedString *attributedText = [[NSMutableAttributedString alloc] initWithAttributedString:self.attributedText];
[attributedText setAttributes:@{NSFontAttributeName:[UIFont boldSystemFontOfSize:self.font.pointSize]} range:range];
self.attributedText = attributedText;
}
- (void) boldSubstring: (NSString*) substring {
NSRange range = [self.text rangeOfString:substring];
[self boldRange:range];
}
注意,这只适用于iOS 6及更高版本。在iOS 5或更早的版本中,它将被忽略。