merge method

InputDecorationTheme merge(
  1. InputDecorationTheme? inputDecorationTheme
)

Returns a copy of this InputDecorationTheme where the non-null fields in the given InputDecorationTheme override the corresponding nullable fields in this InputDecorationTheme.

The non-nullable fields of InputDecorationTheme, such as floatingLabelBehavior, isDense, isCollapsed, filled, and alignLabelWithHint cannot be overridden.

In other words, the fields of the provided InputDecorationTheme are used to fill in the unspecified and nullable fields of this InputDecorationTheme.

Implementation

InputDecorationTheme merge(InputDecorationTheme? inputDecorationTheme) {
  if (inputDecorationTheme == null) {
    return this;
  }
  return copyWith(
    labelStyle: labelStyle ?? inputDecorationTheme.labelStyle,
    floatingLabelStyle: floatingLabelStyle ?? inputDecorationTheme.floatingLabelStyle,
    helperStyle: helperStyle ?? inputDecorationTheme.helperStyle,
    helperMaxLines: helperMaxLines ?? inputDecorationTheme.helperMaxLines,
    hintStyle: hintStyle ?? inputDecorationTheme.hintStyle,
    hintFadeDuration: hintFadeDuration ?? inputDecorationTheme.hintFadeDuration,
    errorStyle: errorStyle ?? inputDecorationTheme.errorStyle,
    errorMaxLines: errorMaxLines ?? inputDecorationTheme.errorMaxLines,
    contentPadding: contentPadding ?? inputDecorationTheme.contentPadding,
    iconColor: iconColor ?? inputDecorationTheme.iconColor,
    prefixStyle: prefixStyle ?? inputDecorationTheme.prefixStyle,
    prefixIconColor: prefixIconColor ?? inputDecorationTheme.prefixIconColor,
    prefixIconConstraints: prefixIconConstraints ?? inputDecorationTheme.prefixIconConstraints,
    suffixStyle: suffixStyle ?? inputDecorationTheme.suffixStyle,
    suffixIconColor: suffixIconColor ?? inputDecorationTheme.suffixIconColor,
    suffixIconConstraints: suffixIconConstraints ?? inputDecorationTheme.suffixIconConstraints,
    counterStyle: counterStyle ?? inputDecorationTheme.counterStyle,
    fillColor: fillColor ?? inputDecorationTheme.fillColor,
    activeIndicatorBorder: activeIndicatorBorder ?? inputDecorationTheme.activeIndicatorBorder,
    outlineBorder: outlineBorder ?? inputDecorationTheme.outlineBorder,
    focusColor: focusColor ?? inputDecorationTheme.focusColor,
    hoverColor: hoverColor ?? inputDecorationTheme.hoverColor,
    errorBorder: errorBorder ?? inputDecorationTheme.errorBorder,
    focusedBorder: focusedBorder ?? inputDecorationTheme.focusedBorder,
    focusedErrorBorder: focusedErrorBorder ?? inputDecorationTheme.focusedErrorBorder,
    disabledBorder: disabledBorder ?? inputDecorationTheme.disabledBorder,
    enabledBorder: enabledBorder ?? inputDecorationTheme.enabledBorder,
    border: border ?? inputDecorationTheme.border,
    constraints: constraints ?? inputDecorationTheme.constraints,
  );
}