*)name range:(NSRange)range; - (void)replaceCharactersInRange:(NSRange)range withAttributedString:(NSAttributedString *)attrString; - (void)insertAttributedString:(NSAttributedString *)attrString atIndex:(NSUInteger)loc ; - (void)appendAttributedString:(NSAttributedString *)attrString; - (void)deleteCharactersInRange:(NSRange )range; - (void)setAttributedString:(NSAttributedString *)attrString; - (void)beginEditing; - (void) *imageStr = [NSAttributedString attributedStringWithAttachment:attach]; /* 将这个图片直接添加到attStr后面 */
NSAttributedString 字符属性 字符属性可以应用于 attributed string 的文本中。
灵活使用NSAttributedString可以更轻松的创建出内容复杂的标签。需要注意一点:如果一个label设置了这个属性,那它其他的设置都将失效。 NSString *)str attributes:(NSDictionary *)attrs; //通过自身对象初始化 //- (instancetype)initWithAttributedString:(NSAttributedString
NSAttributedString根据宽度返回每行文案 #import <Foundation/Foundation.h> #import <UIKit/UIKit.h> NS_ASSUME_NONNULL_BEGIN @interface NSAttributedString (MOLine) /// 根据width返回每一行的内容 /// @param width 纯文字宽度,需要删除容器内边距 - (nullable NSArray <NSAttributedString *> *)qnb_separatedLinesWithWidth:(CGFloat)width; @end #import "NSAttributedString +MOLine.h" #import <CoreText/CoreText.h> @implementation NSAttributedString (MOLine) /// 根据width返回每一行的内容 /// @param width 纯文字宽度,需要删除容器内边距 - (nullable NSArray <NSAttributedString *> *)qnb_separatedLinesWithWidth
开篇 项目有一个客服反馈功能,用到的是聊天列表的形式,这就免不了计算字符串的宽高,由于要给字符串加间距,没办法,只能用 NSAttributedString 所以要计算NSAttributedString 是当前字符串的字体(包含大小信息) maxSize 是一个最大的距离:如我最大的宽度只让他为200,高度不限,则传入: CGSizeMake(200 , CGFLOAT_MAX) 计算NSAttributedString } 参数解读 fontSize :是当前字符串的字体(包含大小信息) text:将要计算的�字符串 needWidth:将要计算的最大宽度 lineSpacing:行间距大小 当然关于 NSAttributedString
本文语法为Swift4 前言 AttributedString可以分为NSAttributedString和NSMutableAttributedString两种。 *attr51 = [[NSAttributedString alloc]initWithString:str51 attributes:dictAttr51]; [attributedString *attr52 = [[NSAttributedString alloc]initWithString:str52 attributes:dictAttr52]; [attributedString *attr53 = [[NSAttributedString alloc]initWithString:str53 attributes:dictAttr53]; [attributedString *attr54 = [[NSAttributedString alloc]initWithString:str54 attributes:dictAttr54]; [attributedString
在Foundation框架中,我们可以使用 NSAttributedSubstringFromRange 方法来从一个 NSAttributedString 对象中获取指定范围的子字符串。 例如,假设我们有一个 NSAttributedString 对象 attributedString ,我们想要获取该对象中从位置 startIndex 开始,长度为 length 的子字符串,可以使用如下代码 : NSAttributedString *attributedString = [[NSAttributedString alloc] initWithString:@"Hello World" attributes NSForegroundColorAttributeName: [UIColor blackColor]}]; NSInteger startIndex = 6; NSInteger length = 5; NSAttributedString attributedSubstringFromRange:NSMakeRange(startIndex, length)]; 在上面的例子中, subString 将会是一个包含World这个子字符串的 NSAttributedString
NSForegroundColorAttributeName: [UIColor darkGrayColor]}; return [[NSAttributedString alloc] initWithString:text attributes:attributes]; } - (NSAttributedString *)descriptionForEmptyDataSet lightGrayColor], NSParagraphStyleAttributeName: paragraph}; return [[NSAttributedString alloc] initWithString:text attributes:attributes]; } 按钮文本或者背景样式 - (NSAttributedString NSDictionary *attributes = @{NSFontAttributeName: [UIFont boldSystemFontOfSize:17.0f]}; return [[NSAttributedString
在iOS6中,系统为UILabel,UITextView等这类文本渲染控件引入了NSAttributedString属性,有了NSAttributedString这个类,创建灵活多彩的文本控件变得十分轻松 ,开发者只需要配置NSAttributedString属性字符串即可。 NSTextAttachment类并不直接参与富文本的渲染与布局,渲染和布局依然由NSAttributedString类来完成,NSAttributedString类中提供了方法将NSTextAttachment 所描述的内容转换为NSAttributedString示例。 attributedStringWithAttachment:attach]]; //为NSTextAttachment转换为的NSAttributedString添加超链接 [att
(string: "查看图片")) //添加描述 replaceStr.addAttributes([NSAttributedString.Key.link :"http://img.wxcha.com = NSAttributedString(attachment: attchimage) //注意:每替换一次,原有的位置发生改变,下一轮替换的起点需要重新计算! var fullText: NSMutableAttributedString if expan { attributedString.append(NSAttributedString :paragraphStyle, NSAttributedString.Key.font : UIFont.systemFont(ofSize: 16)], range: NSRange(location matches(in:title, options:[], range: NSRange(location: 0, length: NSAttributedString(string: title).length
让返回按钮图片渲染为白色 navigationBar.tintColor = UIColor.white // 导航栏文字 navigationBar.titleTextAttributes = [ NSAttributedString.Key.font : UIFont.systemFont(ofSize: 18), NSAttributedString.Key.foregroundColor: UIColor.white ] run起来后发现 : UIFont.systemFont(ofSize: 18), NSAttributedString.Key.foregroundColor: UIColor.white ] = UIColor.white bar.shadowImage = UIColor.init(0xEEEEEE).image let selTitleAttr = [ NSAttributedString.Key.font : itemFont, NSAttributedString.Key.foregroundColor: UIColor.theme ] bar.stackedLayoutAppearance.selected.titleTextAttributes
@"<" goes to @"<" not @"<" return string; } 需求2 将HTML字符串转化为NSAttributedString富文本字符串 - (NSAttributedString *)attributedStringWithHTMLString:(NSString *)htmlString { NSDictionary *options ) }; NSData *data = [htmlString dataUsingEncoding:NSUTF8StringEncoding]; return [[NSAttributedString
alloc] init]; UIImage *image2 = [UIImage imageNamed:@"relpay_三角上.png"]; NSAttributedString attach2.bounds = CGRectMake(0, -4, 15, 15); imageString2 = [NSAttributedString = [[NSTextAttachment alloc] init]; UIImage *image = [UIImage imageNamed:@"relpay_三角下.png"]; NSAttributedString attach.image = image; attach.bounds = CGRectMake(0, -4, 15, 15); imageString = [NSAttributedString
直接上代码如下: NSString *htmlString =self.model.buyKnow; NSAttributedString *attrStr = [[NSAttributedString 更改后的标签: 黑色样式无样式 这样就直接实现了改变NSAttributedString
width: imageWidth, height: imageHeight) let imageStr = NSAttributedString (attachment: attach) attributedStr.append(imageStr) // 增加图片后与文字间距 let spacingStr = NSAttributedString (string: " ") attributedStr.append(spacingStr) // 昵称 let nameStr = NSAttributedString(string: "莫小言:jKf
if (i < text.length - 1) { //特殊字符不居中显示,设置文本向下偏移 NSAttributedString * att1 = [[NSAttributedString alloc] initWithString:@"*" attributes:@{NSBaselineOffsetAttributeName: if (i < text.length) { //特殊字符不居中显示,设置文本向下偏移 NSAttributedString * att1 = [[NSAttributedString alloc] initWithString:@"*" attributes:@{NSBaselineOffsetAttributeName:
但是 UILabel 是没有这么一个直接暴露的属性的,想要修改 lineSpacing,我们需要借助 NSAttributedString 来实现,示意代码: NSMutableParagraphStyle attributes setObject:paragraphStyle forKey:NSParagraphStyleAttributeName]; label.attributedText = [[NSAttributedString attributes setObject:paragraphStyle forKey:NSParagraphStyleAttributeName]; label.attributedText = [[NSAttributedString lineHeight 同样可以借助 NSAttributedString 来实现,示意代码: NSMutableParagraphStyle *paragraphStyle = [NSMutableParagraphStyle attributes setObject:paragraphStyle forKey:NSParagraphStyleAttributeName]; label.attributedText = [[NSAttributedString
String.init(data: data, encoding: String.Encoding.utf8) else{return} do{ let attrStr = try NSAttributedString.init , options: [NSAttributedString.DocumentReadingOptionKey.documentType : NSAttributedString.DocumentType.html
Webview) III、HTML字符串与富文本互转 https://kunnan.blog.csdn.net/article/details/114015528 在这里插入图片描述 html->NSAttributedString 专注《iOS应用逆向与安全》(包括iOS基础)
"; NSAttributedString *attStr = [[ NSAttributedString alloc] initWithData:[html dataUsingEncoding:NSUnicodeStringEncoding] options:@{NSDocumentTypeDocumentAttribute setupUITextField4attributedPlaceholder:(UITextField*)textField{ textField.attributedPlaceholder = [[NSAttributedString专注《iOS应用逆向与安全》(包括iOS基础)
"; NSAttributedString *attStr = [[ NSAttributedString alloc] initWithData:[html dataUsingEncoding:NSUnicodeStringEncoding] options:@{NSDocumentTypeDocumentAttribute