combineWith method

TextStyle combineWith({ bool? inherit, Color? color, Color? backgroundColor, double? fontSize, FontWeight? fontWeight, FontStyle? fontStyle, double? letterSpacing, double? wordSpacing, TextBaseline? textBaseline, double? height, TextLeadingDistribution? leadingDistribution, Locale? locale, Paint? foreground, Paint? background, List<Shadow>? shadows, List<FontFeature>? fontFeatures, List<FontVariation>? fontVariations, TextDecoration? decoration, Color? decorationColor, TextDecorationStyle? decorationStyle, double? decorationThickness, String? debugLabel, String? fontFamily, List<String>? fontFamilyFallback, String? package, TextOverflow? overflow, })

返回此 TextStyle 的副本，其中 other 中的非空字段替换了此 TextStyle 中相应的空字段。 换句话说，other 用于填充此 TextStyle 中的未指定（空）字段。 !!!: _package 字段是私有的，无法获取 package, 所以会直接替换 package 字段。

Implementation

TextStyle combineWith({
  bool? inherit,
  Color? color,
  Color? backgroundColor,
  double? fontSize,
  FontWeight? fontWeight,
  FontStyle? fontStyle,
  double? letterSpacing,
  double? wordSpacing,
  TextBaseline? textBaseline,
  double? height,
  TextLeadingDistribution? leadingDistribution,
  Locale? locale,
  Paint? foreground,
  Paint? background,
  List<Shadow>? shadows,
  List<FontFeature>? fontFeatures,
  List<FontVariation>? fontVariations,
  TextDecoration? decoration,
  Color? decorationColor,
  TextDecorationStyle? decorationStyle,
  double? decorationThickness,
  String? debugLabel,
  String? fontFamily,
  List<String>? fontFamilyFallback,
  String? package,
  TextOverflow? overflow,
}) {
  assert(color == null || foreground == null, _kColorForegroundWarning);
  assert(backgroundColor == null || background == null, _kColorBackgroundWarning);
  String? newDebugLabel;
  assert(() {
    if (this.debugLabel != null) {
      newDebugLabel = debugLabel ?? '(${this.debugLabel}).combineWith';
    }
    return true;
  }());

  return copyWith(
    color: this.color ?? color,
    backgroundColor: this.backgroundColor ?? backgroundColor,
    fontSize: this.fontSize ?? fontSize,
    fontWeight: this.fontWeight ?? fontWeight,
    fontStyle: this.fontStyle ?? fontStyle,
    letterSpacing: this.letterSpacing ?? letterSpacing,
    wordSpacing: this.wordSpacing ?? wordSpacing,
    textBaseline: this.textBaseline ?? textBaseline,
    height: this.height ?? height,
    leadingDistribution: this.leadingDistribution ?? leadingDistribution,
    locale: this.locale ?? locale,
    foreground: this.foreground ?? foreground,
    background: this.background ?? background,
    shadows: this.shadows ?? shadows,
    fontFeatures: this.fontFeatures ?? fontFeatures,
    fontVariations: this.fontVariations ?? fontVariations,
    decoration: this.decoration ?? decoration,
    decorationColor: this.decorationColor ?? decorationColor,
    decorationStyle: this.decorationStyle ?? decorationStyle,
    decorationThickness: this.decorationThickness ?? decorationThickness,
    debugLabel: newDebugLabel ?? debugLabel,
    fontFamily: this.fontFamily ?? fontFamily,
    fontFamilyFallback: this.fontFamilyFallback ?? fontFamilyFallback,
    overflow: this.overflow ?? overflow,
    package: package,
  );
}