标签:代理 chm name sam range float label reg maker
UILabel 和 UITextView 都能添加 NSAttributedString 属性字符串,通过这一点,可以实现带有属性的文字和文字内包含图片的文本内容展示.
效果如下:
NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc]initWithString:textString];
[attributedString addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:14] range:NSMakeRange(0, textString.length)];
[attributedString addAttribute:NSKernAttributeName value:@1 range:NSMakeRange(0, textString.length)];
上面两句代码可以简写为一句(为属性字符串同时添加多个属性)
[attributedString addAttributes:@{NSFontAttributeName: [UIFont systemFontOfSize:14],NSKernAttributeName: @1} range:NSMakeRange(0, textString.length)];
通过字符串获取范围
[attributedString addAttributes:@{NSFontAttributeName: [UIFont systemFontOfSize:26],NSForegroundColorAttributeName: [UIColor blueColor]} range:[textString rangeOfString:@"360云盘服务转型公告"]];
通过前后字符串获取大段字符的范围
// 此方法可以通过string获得范围进行修改
NSRange startRange = [textString localizedStandardRangeOfString:@"我们即将采取以下措施:"];
NSRange endRange = [textString localizedStandardRangeOfString:@"感谢您的一路相伴。"];
[attributedString addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSUnionRange(startRange, endRange)];
// 设置文本下划线
NSRange startRange1 = [textString localizedStandardRangeOfString:@"因此,"];
NSRange endRange1 = [textString localizedStandardRangeOfString:@"之后转型企业云服务。"];
[attributedString addAttribute:NSUnderlineStyleAttributeName value:@1 range:NSUnionRange(startRange1, endRange1)];
// 设置文本的描边
[attributedString addAttribute:NSStrokeWidthAttributeName value:@2.0 range:[textString rangeOfString:@"存储传播非法文件、侵权盗版牟利、传播淫秽色情信息等违法犯罪行为"]];
[attributedString addAttribute:NSStrokeColorAttributeName value:[UIColor brownColor] range:[textString rangeOfString:@"存储传播非法文件、侵权盗版牟利、传播淫秽色情信息等违法犯罪行为"]];
[attributedString addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:17] range:[textString rangeOfString:@"存储传播非法文件、侵权盗版牟利、传播淫秽色情信息等违法犯罪行为"]];
// 插入图片附件
NSTextAttachment *imageAtta = [[NSTextAttachment alloc] init];
imageAtta.bounds = CGRectMake(0, 0, 375, 180);
imageAtta.image = [UIImage imageNamed:@"360"];
NSAttributedString *attach = [NSAttributedString attributedStringWithAttachment:imageAtta];
[attributedString insertAttributedString:attach atIndex:0];
// 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)];
// 网址链接
NSRange urlRange = [textString rangeOfString:@"yunpan.360.cn"];
[attributedString addAttribute:NSLinkAttributeName value:[NSURL URLWithString:@"http://yunpan.360.cn"] range:NSMakeRange(urlRange.location, 14)];
[attributedString addAttribute:NSBackgroundColorAttributeName value:[UIColor greenColor] range:NSMakeRange(urlRange.location, 14)];
#pragma mark ----------UITextViewDelegate----------
- (BOOL)textView:(UITextView *)textView shouldInteractWithURL:(NSURL *)URL inRange:(NSRange)characterRange interaction:(UITextItemInteraction)interaction { NSLog(@"%@",URL); return YES; }
- (BOOL)textView:(UITextView *)textView shouldInteractWithTextAttachment:(NSTextAttachment *)textAttachment inRange:(NSRange)characterRange interaction:(UITextItemInteraction)interaction { NSLog(@"%@",textAttachment.image); return YES; }
// 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
转自:http://blog.csdn.net/Mazy_ma/article/details/52920596
标签:代理 chm name sam range float label reg maker
原文地址:http://www.cnblogs.com/huangzs/p/7488000.html