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我想在我的文本视图中格式化测试，一些粗体文本，一些像这样的斜体。uitextview可以吗？现在我正在使用带有 HTML 字符串的 webview。例如：

<html><head><style type=\"text/css\">h3 {color:white;} p {color:pink;} p {text-align: center} p {font-family:helvetica;font-size:20px;}</style></head><body>\
                                         <h3></h3>\
                                         <p><b>some text </b></p>\
                                         <p>Short some text</p>\
                                         <p>Child  Infusion  7.5 to 15 mg/kg/hr<br>ie 7.5 to 15 times weight per hour</p>\
                                         <p>Adult  Infusion  3 to 12 mg/kg/hr<br>ie 3 to 12 mg times weight per hour</p>\
                                         </body></html>
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1 回答 1

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您可以使用 NSAttributedString、设置文本字体、前景色和背景色、StrikeThrough 和阴影等。

属性字符串在字符及其属性之间建立关联。与 NSString 对象一样，也有两种变体，NSAttributedString 和 NSMutableAttributedString。虽然之前的 iOS 版本支持属性字符串，但直到 iOS 6 之后，按钮、标签、文本字段和文本视图等控件才定义了一个属性来管理属性。属性应用于一系列字符，例如，您可以为字符串的一部分设置删除线属性。还需要注意的是，属性字符串对象的默认字体是 Helvetica 12-point。如果您为完整字符串以外的范围设置字体属性，请记住这一点。可以使用属性字符串设置以下属性： NSString *const NSFontAttributeName; NSString *const NSParagraphStyleAttributeName; NSString *const NSForegroundColorAttributeName; NSString *const NSBackgroundColorAttributeName; NSString *const NSligatureAttributeName; NSString *const NSKernAttributeName; NSString *const NSStrikethroughStyleAttributeName; NSString *const NSUnderlineStyleAttributeName; NSString *const NSStrokeColorAttributeName; NSString *const NSStrokeWidthAttributeName; NSString *const NSShadowAttributeName; NSString *const NSVerticalGlyphFormAttributeName;

这里有些例子

//-----------------------------
// Create attributed string
//-----------------------------
NSString *str = @"example for underline \nexample for font \nexample for bold \nexample for italics";
NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:str];

// Add attribute NSUnderlineStyleAttributeName
//[attributedString addAttribute:NSUnderlineStyleAttributeName value:[NSNumber numberWithInt:NSUnderlineStyleSingle] range:NSMakeRange(12, 9)];
[attributedString addAttribute:NSUnderlineStyleAttributeName value:[NSNumber numberWithInt:NSUnderlineStyleSingle] range:NSMakeRange(12, 9)];

// Set background color for entire range
[attributedString addAttribute:NSBackgroundColorAttributeName
                         value:[UIColor yellowColor]
                         range:NSMakeRange(0, [attributedString length])];


// Create NSMutableParagraphStyle object
NSMutableParagraphStyle *paragraph = [[NSMutableParagraphStyle alloc] init];
paragraph.alignment = NSTextAlignmentCenter;

// Add attribute NSParagraphStyleAttributeName
[attributedString addAttribute:NSParagraphStyleAttributeName value:paragraph range:NSMakeRange(0, [attributedString length])];



// Set font, notice the range is for the whole string
    UIFont *font = [UIFont fontWithName:@"Helvetica" size:18];
[attributedString addAttribute:NSFontAttributeName value:font range:NSMakeRange(35, 4)];



// Set font, notice the range is for the whole string
UIFont *fontBold = [UIFont fontWithName:@"Helvetica-Bold" size:18];
[attributedString addAttribute:NSFontAttributeName value:fontBold range:NSMakeRange(53, 4)];

// Set font, notice the range is for the whole string
UIFont *fontItalics = [UIFont fontWithName:@"Helvetica-Oblique" size:18];
[attributedString addAttribute:NSFontAttributeName value:fontItalics range:NSMakeRange(71, 7)];



// Set label text to attributed string
[self.mytextView setAttributedText:attributedString];

`

于 2013-02-07T10:01:54.240 回答