Flutter Text Widgets

发表于 分类于 ， ，

Flutter Text Widgets由*Text* ,RichText ,DefaultTextStyle 构成。

  • Text由单一的样式来显示文本;

    构造函数：

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    const Text(this.data, {
      Key key,
      this.style,
      this.strutStyle,
      this.textAlign,
      this.textDirection,
      this.locale,
      this.softWrap,
      this.overflow,
      this.textScaleFactor,
      this.maxLines,
      this.semanticsLabel,
    }) : assert(data != null),
         textSpan = null,
         super(key: key);
  • RichText由多种不同的样式来显示文本;

    构造函数：

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    const RichText({
      Key key,
      @required this.text,
      this.textAlign = TextAlign.start,
      this.textDirection,
      this.softWrap = true,
      this.overflow = TextOverflow.clip,
      this.textScaleFactor = 1.0,
      this.maxLines,
      this.locale,
      this.strutStyle,
    }) : assert(text != null),
         assert(textAlign != null),
         assert(softWrap != null),
         assert(overflow != null),
         assert(textScaleFactor != null),
         assert(maxLines == null || maxLines > 0),
         super(key: key);
  • DefaultTextStyle对于没有明确样式的子文本元素设置默认的文本样式;

    构造函数：

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    const DefaultTextStyle({
      Key key,
      @required this.style,
      this.textAlign,
      this.softWrap = true,
      this.overflow = TextOverflow.clip,
      this.maxLines,
      @required Widget child,
    }) : assert(style != null),
         assert(softWrap != null),
         assert(overflow != null),
         assert(maxLines == null || maxLines > 0),
         assert(child != null),
         super(key: key, child: child);