/*
常用属性
// 字体
NSFontAttributeName // UIFont, default Helvetica(Neue) 12
// 段落
NSParagraphStyleAttributeName // NSParagraphStyle, default defaultParagraphStyle
// 文字颜色
NSForegroundColorAttributeName // UIColor, default blackColor
// 背景颜色
NSBackgroundColorAttributeName // UIColor, default nil: no background
// 描边颜色
NSStrokeColorAttributeName // UIColor, default nil: same as foreground color
// 描边宽度
NSStrokeWidthAttributeName // NSNumber containing floating point value, default 0
// 阴影
NSShadowAttributeName // NSShadow, default nil: no shadow
// 附件
NSAttachmentAttributeName // NSTextAttachment, default nil
// 链接URL
NSLinkAttributeName // NSURL (preferred) or NSString
// 基线偏移量
NSBaselineOffsetAttributeName // NSNumber containing floating point value,default 0
// 下划线
NSUnderlineColorAttributeName // UIColor, default nil: same as foreground color
*/
NSString *textString = @"wdadjaisjdaowjd我的爱的哦说sado我啊啊啊http://www.baidu.com";
//初始化可变属性字符串
NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc]initWithString:textString];
//设置属性
// [attributedString addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:14] range:NSMakeRange(0, textString.text.length)];
// [attributedString addAttribute:NSKernAttributeName value:@1 range:NSMakeRange(0, textString.text.length)];
//合并设置属性
// [attributedString addAttributes:@{NSFontAttributeName: [UIFont systemFontOfSize:14],NSKernAttributeName: @1} range:NSMakeRange(0, textString.text.length)];
//通过字符串获取范围
// [attributedString addAttributes:@{NSFontAttributeName: [UIFont systemFontOfSize:26],NSForegroundColorAttributeName: [UIColor blueColor]} range:[textString rangeOfString:@"我的爱的哦说"]];
//获取文字并修改属性
// NSRange startRange = [textString localizedStandardRangeOfString:@"owjd"];
// NSRange endRange = [textString localizedStandardRangeOfString:@"sado"];
// [attributedString addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSUnionRange(startRange, endRange)];
// 设置文本下划线
// NSRange startRange1 = [textString localizedStandardRangeOfString:@"owjd"];
// NSRange endRange1 = [textString localizedStandardRangeOfString:@"sado"];
// [attributedString addAttribute:NSUnderlineStyleAttributeName value:@1 range:NSUnionRange(startRange1, endRange1)];
// // 插入图片附件
// NSTextAttachment *imageAtta = [[NSTextAttachment alloc] init];
// imageAtta.bounds = CGRectMake(0, 0, 10, 12);
// imageAtta.image = [UIImage imageNamed:@"修改价格"];
// NSAttributedString *attach = [NSAttributedString attributedStringWithAttachment:imageAtta];
// //将图片放在最后一位
// [attributedString appendAttributedString:attach];
[attributedString insertAttributedString:attach atIndex:0];
//设置段落属性
// // 段落样式
// NSMutableParagraphStyle *style = [[NSMutableParagraphStyle alloc]init];
// // 行间距
// [style setLineSpacing:3];
// // 段落间距
// [style setParagraphSpacing:6];
// // 首行缩进
// [style setFirstLineHeadIndent:25];
// [attributedString addAttribute:NSParagraphStyleAttributeName value:style range:NSMakeRange(1, textString.length)];
//添加网址链接
NSRange urlRange = [textString rangeOfString:@"http://www.baidu.com"];
[attributedString addAttribute:NSLinkAttributeName value:[NSURL URLWithString:@"http://www.baidu.com"] range:NSMakeRange(urlRange.location, 20)];
[attributedString addAttribute:NSBackgroundColorAttributeName value:[UIColor greenColor] range:NSMakeRange(urlRange.location, 20)];
_textView.attributedText = attributedString;