3ade3af8创建于 2025年6月3日历史提交

属性字符串（StyledString/MutableStyledString）

属性字符串StyledString/MutableStyledString（其中MutableStyledString继承自StyledString，下文统称为StyledString），可用于在字符或段落级别上设置文本样式。将StyledString应用到文本组件上，可以采用多种方式修改文本，包括调整字号、添加字体颜色、使文本具备可点击性，以及通过自定义方式绘制文本等。具体使用方法请参考属性字符串的文档。

属性字符串提供多种类型样式对象，涵盖各种常见的文本样式格式，例如文本装饰线样式、文本行高样式、文本阴影样式等。也可以自行创建CustomSpan，以应用自定义样式。

创建并应用StyledString和MutableStyledString

可以通过TextController提供的setStyledString方法，将属性字符串附加到文本组件，并推荐在onPageShow或者文本组件的onAppear回调中触发绑定。

说明：

在aboutToAppear中调用setStyledString方法时，由于该方法运行阶段组件尚未完成创建并成功挂载节点树，因此无法在页面初始化时显示属性字符串。

从API version 15开始，在aboutToAppear中调用setStyledString方法，页面初始化时可以显示属性字符串。

@Entry
@Component
struct styled_string_demo1 {
  styledString1: StyledString = new StyledString("运动45分钟");
  mutableStyledString1: MutableStyledString = new MutableStyledString("运动35分钟");
  controller1: TextController = new TextController();
  controller2: TextController = new TextController();

  async onPageShow() {
    // 在生命周期onPageShow回调中绑定属性字符串
    this.controller1.setStyledString(this.styledString1);
  }

  build() {
    Column() {
      // 显示属性字符串
      Text(undefined, { controller: this.controller1 })
      Text(undefined, { controller: this.controller2 })
        .onAppear(() => {
          // 在组件onAppear回调中绑定属性字符串
          this.controller2.setStyledString(this.mutableStyledString1);
        })
    }
    .width('100%')
  }
}

StyledString_Init

设置文本样式

属性字符串目前提供了多种Style对象，包括TextStyle、TextShadowStyle、DecorationStyle、BaselineOffsetStyle、LineHeightStyle、LetterSpacingStyle，用于设置文本的各类样式。

创建及应用文本字体样式对象（TextStyle）

import { LengthMetrics } from '@kit.ArkUI';

@Entry
@Component
struct styled_string_demo2 {
  textStyleAttrs: TextStyle =
    new TextStyle({ fontWeight: FontWeight.Bolder, fontSize: LengthMetrics.vp(24), fontStyle: FontStyle.Italic });
  mutableStyledString: MutableStyledString = new MutableStyledString("运动35分钟 目标达成", [
    {
      start: 2,
      length: 2,
      styledKey: StyledStringKey.FONT,
      styledValue: this.textStyleAttrs
    },
    {
      start: 7,
      length: 4,
      styledKey: StyledStringKey.FONT,
      styledValue: new TextStyle({ fontColor: Color.Orange, fontSize: LengthMetrics.vp(12) })
    }
  ]);
  controller: TextController = new TextController();

  async onPageShow() {
    this.controller.setStyledString(this.mutableStyledString);
  }

  build() {
    Column() {
      // 显示属性字符串
      Text(undefined, { controller: this.controller })
        .margin({ top: 10 })
    }
    .width('100%')
  }
}

StyledString_TextStyle

创建及应用文本阴影对象（TextShadowStyle）

// xxx.ets
@Entry
@Component
struct styled_string_demo3 {
  mutableStyledString: MutableStyledString = new MutableStyledString("运动35分钟", [
    {
      start: 0,
      length: 3,
      styledKey: StyledStringKey.TEXT_SHADOW,
      styledValue: new TextShadowStyle({
        radius: 5,
        type: ShadowType.COLOR,
        color: Color.Red,
        offsetX: 10,
        offsetY: 10
      })
    }
  ]);
  controller: TextController = new TextController();

  async onPageShow() {
    this.controller.setStyledString(this.mutableStyledString);
  }

  build() {
    Column() {
      // 显示属性字符串
      Text(undefined, { controller: this.controller })
    }
    .width('100%')
  }
}

StyledString_TextShadow

创建及应用文本装饰线对象（DecorationStyle）

// xxx.ets
@Entry
@Component
struct styled_string_demo4 {
  mutableStyledString: MutableStyledString = new MutableStyledString("运动35分钟", [
    {
      start: 0,
      length: 3,
      styledKey: StyledStringKey.DECORATION,
      styledValue: new DecorationStyle({ type: TextDecorationType.LineThrough, color: Color.Red })
    }
  ]);
  controller: TextController = new TextController();

  async onPageShow() {
    this.controller.setStyledString(this.mutableStyledString);
  }

  build() {
    Column() {
      // 显示属性字符串
      Text(undefined, { controller: this.controller })
    }
    .width('100%')
  }
}

StyledString_Decoration

创建及应用文本基线偏移量对象（BaselineOffsetStyle）

import { LengthMetrics } from '@kit.ArkUI';

// xxx.ets
@Entry
@Component
struct styled_string_demo5 {
  mutableStyledString: MutableStyledString = new MutableStyledString("运动35分钟", [
    {
      start: 0,
      length: 3,
      styledKey: StyledStringKey.BASELINE_OFFSET,
      styledValue: new BaselineOffsetStyle(LengthMetrics.px(20))
    }
  ]);
  controller: TextController = new TextController();

  async onPageShow() {
    this.controller.setStyledString(this.mutableStyledString);
  }

  build() {
    Column() {
      // 显示属性字符串
      Text(undefined, { controller: this.controller })
    }
    .width('100%')
  }
}

StyledString_Baseline

创建及应用文本行高对象（LineHeightStyle）

import { LengthMetrics } from '@kit.ArkUI';

// xxx.ets
@Entry
@Component
struct styled_string_demo6 {
  mutableStyledString: MutableStyledString = new MutableStyledString("运动35分钟\n顶顶顶\n得到", [
    {
      start: 8,
      length: 3,
      styledKey: StyledStringKey.LINE_HEIGHT,
      styledValue: new LineHeightStyle(LengthMetrics.vp(50))
    }
  ]);
  controller: TextController = new TextController();

  async onPageShow() {
    this.controller.setStyledString(this.mutableStyledString);
  }

  build() {
    Column() {
      // 显示属性字符串
      Text(undefined, { controller: this.controller })
    }
    .width('100%')
    .margin({ top: 10 })
  }
}

StyledString_lineHeight

创建及应用文本字符间距对象（LetterSpacingStyle）

import { LengthMetrics, LengthUnit } from '@kit.ArkUI';

// xxx.ets
@Entry
@Component
struct styled_string_demo7 {
  mutableStyledString: MutableStyledString = new MutableStyledString("运动35分钟", [
    {
      start: 0,
      length: 2,
      styledKey: StyledStringKey.LETTER_SPACING,
      styledValue: new LetterSpacingStyle(new LengthMetrics(20, LengthUnit.VP))
    }
  ]);
  controller: TextController = new TextController();

  async onPageShow() {
    this.controller.setStyledString(this.mutableStyledString);
  }

  build() {
    Column() {
      // 显示属性字符串
      Text(undefined, { controller: this.controller })
    }
    .width('100%')
  }
}

StyledString_letterSpacing

设置段落样式

可通过ParagraphStyle设置段落样式布局。下图显示了如何分割文本中的段落，段落以换行符 \n 结尾。

paragraphs

以下代码示例展示了如何创建ParagraphStyle并应用。如果将ParagraphStyle附加到段落开头、末尾或之间的任何位置，均会应用样式，非段落区间内则不会应用样式。

import { LengthMetrics } from '@kit.ArkUI';
titleParagraphStyleAttr: ParagraphStyle = new ParagraphStyle({ textAlign: TextAlign.Center });
//段落首行缩进15vp
paragraphStyleAttr1: ParagraphStyle = new ParagraphStyle({ textIndent: LengthMetrics.vp(15) });
//行高样式对象
lineHeightStyle1: LineHeightStyle= new LineHeightStyle(new LengthMetrics(24));
//创建含段落样式的对象paragraphStyledString1
paragraphStyledString1: MutableStyledString = new MutableStyledString("段落标题\n正文第一段落开始0123456789正文第一段落结束。", [
  {
    start: 0,
    length: 4,
    styledKey: StyledStringKey.PARAGRAPH_STYLE,
    styledValue: this.titleParagraphStyleAttr
  },
  {
    start: 0,
    length: 4,
    styledKey: StyledStringKey.LINE_HEIGHT,
    styledValue: new LineHeightStyle(new LengthMetrics(50))
  },{
  start: 0,
  length: 4,
  styledKey: StyledStringKey.FONT,
  styledValue: new TextStyle({ fontSize: LengthMetrics.vp(24), fontWeight: FontWeight.Bolder })
},
  {
    start: 5,
    length: 3,
    styledKey: StyledStringKey.PARAGRAPH_STYLE,
    styledValue: this.paragraphStyleAttr1
  },
  {
    start: 5,
    length: 20,
    styledKey: StyledStringKey.LINE_HEIGHT,
    styledValue: this.lineHeightStyle1
  }
]);

除了可以在创建属性字符串时就预设样式，也可以后续通过replaceStyle清空原样式替换新样式，同时需要在附加的文本组件controller上主动触发更新绑定的属性字符串。

import { LengthMetrics } from '@kit.ArkUI';
//段落不设置缩进配置最大行数及超长显示方式
paragraphStyleAttr3: ParagraphStyle = new ParagraphStyle({ textAlign: TextAlign.End, maxLines: 1, wordBreak: WordBreak.BREAK_ALL, overflow: TextOverflow.Ellipsis});
// 后续某个节点触发更新段落样式
controller: TextController = new TextController();
this.paragraphStyledString1.replaceStyle({
  start: 5,
  length: 3,
  styledKey: StyledStringKey.PARAGRAPH_STYLE,
  styledValue: this.paragraphStyleAttr3
});
this.controller.setStyledString(this.paragraphStyledString1);

使用图片

可通过ImageAttachment来添加图片。

以下示例展示了如何将图片和文本附加到同一个MutableStyledString对象上，并实现图文混排。

// xxx.ets
import { image } from '@kit.ImageKit';
import { LengthMetrics } from '@kit.ArkUI';

@Entry
@Component
struct styled_string_demo4 {
  @State message: string = 'Hello World';
  imagePixelMap: image.PixelMap | undefined = undefined;
  @State imagePixelMap3: image.PixelMap | undefined = undefined;
  mutableStr: MutableStyledString = new MutableStyledString('123');
  controller: TextController = new TextController();
  mutableStr2: MutableStyledString = new MutableStyledString('This is set decoration line style to the mutableStr2', [{
    start: 0,
    length: 15,
    styledKey: StyledStringKey.DECORATION,
    styledValue: new DecorationStyle({
      type: TextDecorationType.Overline,
      color: Color.Orange,
      style: TextDecorationStyle.DOUBLE
    })
  }]);

  async aboutToAppear() {
    console.info("aboutToAppear initial imagePixelMap");
    this.imagePixelMap = await this.getPixmapFromMedia($r('app.media.sea'));
  }

  private async getPixmapFromMedia(resource: Resource) {
    let unit8Array = await this.getUIContext().getHostContext()?.resourceManager?.getMediaContent({
      bundleName: resource.bundleName,
      moduleName: resource.moduleName,
      id: resource.id
    });
    let imageSource = image.createImageSource(unit8Array?.buffer?.slice(0, unit8Array?.buffer?.byteLength));
    let createPixelMap: image.PixelMap = await imageSource.createPixelMap({
      desiredPixelFormat: image.PixelMapFormat.RGBA_8888
    });
    await imageSource.release();
    return createPixelMap;
  }

  leadingMarginValue: ParagraphStyle = new ParagraphStyle({ leadingMargin: LengthMetrics.vp(5)});
  //行高样式对象
  lineHeightStyle1: LineHeightStyle= new LineHeightStyle(new LengthMetrics(24));
  //Bold样式
  boldTextStyle: TextStyle = new TextStyle({ fontWeight: FontWeight.Bold });
  //创建含段落样式的对象paragraphStyledString1
  paragraphStyledString1: MutableStyledString = new MutableStyledString("\n品牌相纸 高清冲印30张\n限时直降5.15元 限量增送", [
    {
      start: 0,
      length: 28,
      styledKey: StyledStringKey.PARAGRAPH_STYLE,
      styledValue: this.leadingMarginValue
    },
    {
      start: 14,
      length: 9,
      styledKey: StyledStringKey.FONT,
      styledValue: new TextStyle({ fontSize: LengthMetrics.vp(14), fontColor: '#B22222' })
    },
    {
      start: 24,
      length: 4,
      styledKey: StyledStringKey.FONT,
      styledValue: new TextStyle({ fontSize: LengthMetrics.vp(14), fontWeight: FontWeight.Lighter })
    },
    {
      start: 11,
      length: 4,
      styledKey: StyledStringKey.LINE_HEIGHT,
      styledValue: this.lineHeightStyle1
    }
  ]);
  paragraphStyledString2: MutableStyledString = new MutableStyledString("\n￥16.21 3000+人好评", [
    {
      start: 0,
      length: 5,
      styledKey: StyledStringKey.PARAGRAPH_STYLE,
      styledValue: this.leadingMarginValue
    },
    {
      start: 0,
      length: 4,
      styledKey: StyledStringKey.LINE_HEIGHT,
      styledValue: new LineHeightStyle(new LengthMetrics(60))
    },
    {
      start: 0,
      length: 7,
      styledKey: StyledStringKey.FONT,
      styledValue: this.boldTextStyle
    },
    {
      start: 1,
      length: 1,
      styledKey: StyledStringKey.FONT,
      styledValue: new TextStyle({ fontSize: LengthMetrics.vp(18) })
    },
    {
      start: 2,
      length: 2,
      styledKey: StyledStringKey.FONT,
      styledValue: new TextStyle({ fontSize: LengthMetrics.vp(36) })
    },
    {
      start: 4,
      length: 3,
      styledKey: StyledStringKey.FONT,
      styledValue: new TextStyle({ fontSize: LengthMetrics.vp(20) })
    },
    {
      start: 7,
      length: 9,
      styledKey: StyledStringKey.FONT,
      styledValue: new TextStyle({ fontColor: Color.Grey, fontSize: LengthMetrics.vp(14)})
    }
  ]);

  build() {
    Row() {
      Column({ space: 10 }) {
        Text(undefined, { controller: this.controller })
          .copyOption(CopyOptions.InApp)
          .draggable(true)
          .backgroundColor('#FFFFFF')
          .borderRadius(5)

        Button('点击查看商品卡片')
          .onClick(() => {
            if (this.imagePixelMap !== undefined) {
              this.mutableStr = new MutableStyledString(new ImageAttachment({
                value: this.imagePixelMap,
                size: { width: 180, height: 160 },
                verticalAlign: ImageSpanAlignment.BASELINE,
                objectFit: ImageFit.Fill
              }));
              this.paragraphStyledString1.appendStyledString(this.paragraphStyledString2);
              this.mutableStr.appendStyledString(this.paragraphStyledString1);
              this.controller.setStyledString(this.mutableStr);
            }
          })
      }
      .width('100%')
    }
    .height('100%')
    .backgroundColor('#F8F8FF')
  }
}

StyledString_ImageAttachment

设置事件

可通过GestureStyle设置onClick、onLongPress事件来使文本响应点击长按事件。

除了初始化属性字符串对象即初始样式对象，亦可通过setStyle接口再叠加新样式或更新已有样式，同时需要在附加的文本组件controller上主动触发更新绑定的属性字符串。

import { drawing } from '@kit.ArkGraphics2D';

let gUIContext: UIContext;

class MyCustomSpan extends CustomSpan {
  constructor(word: string, width: number, height: number, fontSize: number) {
    super();
    this.word = word;
    this.width = width;
    this.height = height;
    this.fontSize = fontSize;
  }

  onMeasure(measureInfo: CustomSpanMeasureInfo): CustomSpanMetrics {
    return { width: this.width, height: this.height };
  }

  onDraw(context: DrawContext, options: CustomSpanDrawInfo) {
    let canvas = context.canvas;

    const brush = new drawing.Brush();
    brush.setColor({
      alpha: 255,
      red: 0,
      green: 0,
      blue: 0
    });
    const font = new drawing.Font();
    font.setSize(gUIContext.vp2px(this.fontSize));
    const textBlob =
      drawing.TextBlob.makeFromString(this.word.substring(0, 5), font, drawing.TextEncoding.TEXT_ENCODING_UTF8);
    canvas.attachBrush(brush);

    this.onDrawRectByRadius(context, options.x, options.x + gUIContext.vp2px(this.width), options.lineTop,
      options.lineBottom, 20);
    brush.setColor({
      alpha: 255,
      red: 255,
      green: 255,
      blue: 255
    });
    canvas.attachBrush(brush);
    canvas.drawTextBlob(textBlob, options.x, options.lineBottom - 30);
    brush.setColor({
      alpha: 255,
      red: 255,
      green: 228,
      blue: 196
    });
    canvas.attachBrush(brush);
    const textBlob1 =
      drawing.TextBlob.makeFromString(this.word.substring(5), font, drawing.TextEncoding.TEXT_ENCODING_UTF8);
    canvas.drawTextBlob(textBlob1, options.x + gUIContext.vp2px(100), options.lineBottom - 30);

    canvas.detachBrush();
  }

  onDrawRectByRadius(context: DrawContext, left: number, right: number, top: number, bottom: number, radius: number) {
    let canvas = context.canvas;
    let path = new drawing.Path();

    // 画带radius的rect
    path.moveTo(left + radius, top);
    path.lineTo(right - radius, top);
    path.arcTo(right - 2 * radius, top, right, top + 2 * radius, 270, 90);
    path.lineTo(right, bottom - radius);
    path.arcTo(right - 2 * radius, bottom - 2 * radius, right, bottom, 0, 90);

    path.lineTo(left + 2 * radius, bottom);
    path.arcTo(left, bottom - 2 * radius, left + 2 * radius, bottom, 90, 90);
    path.lineTo(left, top + 2 * radius);
    path.arcTo(left, top, left + 2 * radius, top + 2 * radius, 180, 90);

    canvas.drawPath(path);
  }

  setWord(word: string) {
    this.word = word;
  }

  width: number = 160;
  word: string = "drawing";
  height: number = 10;
  fontSize: number = 16;
}

@Entry
@Component
struct styled_string_demo6 {
  customSpan3: MyCustomSpan = new MyCustomSpan("99VIP88%off", 200, 40, 30);
  textStyle: MutableStyledString = new MutableStyledString("123");
  textController: TextController = new TextController();
  isPageShow: boolean = true;

  aboutToAppear() {
    gUIContext = this.getUIContext();
  }

  async onPageShow() {
    if (!this.isPageShow) {
      return;
    }
    this.isPageShow = false;
    this.textController.setStyledString(new StyledString(this.customSpan3));
  }

  build() {
    Row() {
      Column() {
        Text(undefined, { controller: this.textController })
          .copyOption(CopyOptions.InApp)
          .fontSize(30)
      }
      .width('100%')
    }
    .height('100%')
  }
}

CustomSpanDemo

格式转换

可以通过toHtml、fromHtml接口实现属性字符串与HTML格式字符串的相关转换，当前支持转换的HTML标签范围：<p>、<span>、<img>。

以下示例展示了如何将属性字符串转换成HTML格式，并展示了如何从HTML格式转换回属性字符串。

// xxx.ets
import { image } from '@kit.ImageKit';
import { LengthMetrics } from '@kit.ArkUI';

@Entry
@Component
struct styled_string_demo8 {
  imagePixelMap: image.PixelMap | undefined = undefined;
  @State html: string | undefined = undefined;
  @State styledString: StyledString | undefined = undefined;
  controller1: TextController = new TextController;
  controller2: TextController = new TextController;
  private uiContext: UIContext = this.getUIContext();

  async aboutToAppear() {
    console.info("aboutToAppear initial imagePixelMap");
    this.imagePixelMap = await this.getPixmapFromMedia($r('app.media.startIcon'));
  }

  private async getPixmapFromMedia(resource: Resource) {
    let unit8Array = await this.uiContext.getHostContext()?.resourceManager?.getMediaContent({
      bundleName: resource.bundleName,
      moduleName: resource.moduleName,
      id: resource.id
    });
    let imageSource = image.createImageSource(unit8Array?.buffer.slice(0, unit8Array.buffer.byteLength));
    let createPixelMap: image.PixelMap = await imageSource.createPixelMap({
      desiredPixelFormat: image.PixelMapFormat.RGBA_8888
    });
    await imageSource.release();
    return createPixelMap;
  }

  build() {
    Column() {
      Text(undefined, { controller: this.controller1 }).height(100)
      Row() {
        Button("添加属性字符串").onClick(() => {
          let mutableStyledString1: MutableStyledString = new MutableStyledString("属性字符串", [{
            start: 0,
            length: 6,
            styledKey: StyledStringKey.FONT,
            styledValue: new TextStyle({ fontColor: Color.Green, fontSize: LengthMetrics.px(50) })
          }]);
          if (this.imagePixelMap !== undefined) {
            let mutableStyledString2 = new MutableStyledString(new ImageAttachment({
              value: this.imagePixelMap,
              size: { width: 50, height: 50 },
            }));
            mutableStyledString1.appendStyledString(mutableStyledString2);
          }
          this.styledString = mutableStyledString1;
          this.controller1.setStyledString(mutableStyledString1);
        }).margin(5)
        Button("toHtml").onClick(() => {
          this.html = StyledString.toHtml(this.styledString);
        }).margin(5)
        Button("fromHtml").onClick(async () => {
          let styledString = await StyledString.fromHtml(this.html);
          this.controller2.setStyledString(styledString);
        }).margin(5)
      }

      Text(undefined, { controller: this.controller2 }).height(100)
      Text(this.html)
    }.width("100%")
  }
}

场景示例

该示例通过ParagraphStyle、LineHeightStyle、TextStyle对象展示了会员过期提示的效果。

import { LengthMetrics } from '@kit.ArkUI';

@Entry
@Component
struct Index {
  alignCenterParagraphStyleAttr: ParagraphStyle = new ParagraphStyle({ textAlign: TextAlign.Center });
  //行高样式对象
  lineHeightStyle1: LineHeightStyle = new LineHeightStyle(LengthMetrics.vp(24));
  //Bold样式
  boldTextStyle: TextStyle = new TextStyle({ fontWeight: FontWeight.Bold });
  //创建含段落样式的对象paragraphStyledString1
  paragraphStyledString1: MutableStyledString =
    new MutableStyledString("您的豪华钻石已过期1天\n续费可继续享受会员专属权益", [
      {
        start: 0,
        length: 4,
        styledKey: StyledStringKey.PARAGRAPH_STYLE,
        styledValue: this.alignCenterParagraphStyleAttr
      },
      {
        start: 0,
        length: 4,
        styledKey: StyledStringKey.LINE_HEIGHT,
        styledValue: new LineHeightStyle(LengthMetrics.vp(40))
      },
      {
        start: 11,
        length: 14,
        styledKey: StyledStringKey.FONT,
        styledValue: new TextStyle({ fontSize: LengthMetrics.vp(14), fontColor: Color.Grey })
      },
      {
        start: 11,
        length: 4,
        styledKey: StyledStringKey.PARAGRAPH_STYLE,
        styledValue: this.alignCenterParagraphStyleAttr
      },
      {
        start: 11,
        length: 4,
        styledKey: StyledStringKey.LINE_HEIGHT,
        styledValue: this.lineHeightStyle1
      }
    ]);
  paragraphStyledString2: MutableStyledString = new MutableStyledString("\n￥4.88￥15", [
    {
      start: 0,
      length: 4,
      styledKey: StyledStringKey.PARAGRAPH_STYLE,
      styledValue: this.alignCenterParagraphStyleAttr
    },
    {
      start: 0,
      length: 4,
      styledKey: StyledStringKey.LINE_HEIGHT,
      styledValue: new LineHeightStyle(LengthMetrics.vp(60))
    },
    {
      start: 0,
      length: 6,
      styledKey: StyledStringKey.FONT,
      styledValue: this.boldTextStyle
    },
    {
      start: 1,
      length: 1,
      styledKey: StyledStringKey.FONT,
      styledValue: new TextStyle({ fontSize: LengthMetrics.vp(18) })
    },
    {
      start: 2,
      length: 4,
      styledKey: StyledStringKey.FONT,
      styledValue: new TextStyle({ fontSize: LengthMetrics.vp(40) })
    },
    {
      start: 6,
      length: 3,
      styledKey: StyledStringKey.FONT,
      styledValue: new TextStyle({ fontColor: Color.Grey, fontSize: LengthMetrics.vp(14) })
    },
    {
      start: 6,
      length: 3,
      styledKey: StyledStringKey.DECORATION,
      styledValue: new DecorationStyle({ type: TextDecorationType.LineThrough, color: Color.Grey })
    }
  ]);
  paragraphStyledString3: MutableStyledString = new MutableStyledString("\n02时06分后将失去该优惠", [
    {
      start: 0,
      length: 4,
      styledKey: StyledStringKey.PARAGRAPH_STYLE,
      styledValue: this.alignCenterParagraphStyleAttr
    },
    {
      start: 0,
      length: 4,
      styledKey: StyledStringKey.LINE_HEIGHT,
      styledValue: new LineHeightStyle(LengthMetrics.vp(30))
    },
    {
      start: 1,
      length: 2,
      styledKey: StyledStringKey.FONT,
      styledValue: new TextStyle({ fontColor: '#FFD700', fontWeight: FontWeight.Bold })
    },
    {
      start: 4,
      length: 2,
      styledKey: StyledStringKey.FONT,
      styledValue: new TextStyle({ fontColor: '#FFD700', fontWeight: FontWeight.Bold })
    }
  ]);
  controller: TextController = new TextController();

  build() {
    Row() {
      Column({ space: 5 }) {
        Text(undefined, { controller: this.controller })
          .width(240)
          .copyOption(CopyOptions.InApp)
          .draggable(true)
          .onAppear(() => {
            this.paragraphStyledString2.appendStyledString(this.paragraphStyledString3);
            this.paragraphStyledString1.appendStyledString(this.paragraphStyledString2);
            this.controller.setStyledString(this.paragraphStyledString1);
          })

        Button("限时4.88元 立即续费")
          .width(200)
          .fontColor(Color.White)
          .fontSize(18)
          .backgroundColor('#3CB371')
          .margin({ bottom: 10 })
      }
      .borderWidth(1).borderColor('#FFDEAD')
      .margin({ left: 10 })
    }
    .height('60%')
  }
}

StyledString_SceneDemo