UITextView自定义

Question

UITextView自定义

我想在我的textview中格式化测试,有些文本用粗体字表示.uitextview有可能吗？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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Answer 1

Has*_* MH 16

您可以使用NSAttributedString,设置文本字体,前景和背景颜色,StrikeThrough和阴影等.

归因字符串在字符及其属性之间建立关联.与NSString对象一样,有两种变体,NSAttributedString和NSMutableAttributedString.虽然以前版本的iOS支持属性字符串,但直到iOS 6控制按钮,标签,文本字段和文本视图才定义了属性来管理属性.属性应用于一系列字符,因此您可以为字符串的一部分设置删除线属性.同样重要的是要注意,属性字符串对象的默认字体是Helvetica 12-point.如果为整个字符串以外的范围设置font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];

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