copyWith method Null safety
- {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}
Creates a copy of this text style but with the given fields replaced with the new values.
One of color
or foreground
must be null, and if this has foreground
specified it will be given preference over any color parameter.
One of backgroundColor
or background
must be null, and if this has
background
specified it will be given preference over any
backgroundColor parameter.
Implementation
TextStyle copyWith({
bool? inherit,
Color? color,
Color? backgroundColor,
double? fontSize,
FontWeight? fontWeight,
FontStyle? fontStyle,
double? letterSpacing,
double? wordSpacing,
TextBaseline? textBaseline,
double? height,
ui.TextLeadingDistribution? leadingDistribution,
Locale? locale,
Paint? foreground,
Paint? background,
List<ui.Shadow>? shadows,
List<ui.FontFeature>? fontFeatures,
List<ui.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}).copyWith';
}
return true;
}());
return TextStyle(
inherit: inherit ?? this.inherit,
color: this.foreground == null && foreground == null ? color ?? this.color : null,
backgroundColor: this.background == null && background == null ? backgroundColor ?? this.backgroundColor : null,
fontSize: fontSize ?? this.fontSize,
fontWeight: fontWeight ?? this.fontWeight,
fontStyle: fontStyle ?? this.fontStyle,
letterSpacing: letterSpacing ?? this.letterSpacing,
wordSpacing: wordSpacing ?? this.wordSpacing,
textBaseline: textBaseline ?? this.textBaseline,
height: height ?? this.height,
leadingDistribution: leadingDistribution ?? this.leadingDistribution,
locale: locale ?? this.locale,
foreground: foreground ?? this.foreground,
background: background ?? this.background,
shadows: shadows ?? this.shadows,
fontFeatures: fontFeatures ?? this.fontFeatures,
fontVariations: fontVariations ?? this.fontVariations,
decoration: decoration ?? this.decoration,
decorationColor: decorationColor ?? this.decorationColor,
decorationStyle: decorationStyle ?? this.decorationStyle,
decorationThickness: decorationThickness ?? this.decorationThickness,
debugLabel: newDebugLabel,
fontFamily: fontFamily ?? _fontFamily,
fontFamilyFallback: fontFamilyFallback ?? this.fontFamilyFallback,
package: package ?? _package,
overflow: overflow ?? this.overflow,
);
}