Combine/Merge two instances of InputDecoration in Flutter

user_8992943 0
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I have two instances of InputDecoration in flutter as follows:

    final firstStyle = InputDecoration(labelText: "hello", contentPadding: EdgeInsets.all(10));
    final secondStyle = InputDecoration(fillColor: Colors.lightBlue);

What I want now is combined form of these two instances so that that single combined or merged decoration can be applied to the input field, that means all three properties, labelText, contentPadding, fillColor will be applied.

I found something called .merge() for TextStyle but not for other classses like InputDecoration and BoxDecoration. What should I do?

dart flutter android
1 Answers

Use this

import 'package:flutter/material.dart';

class MergeInputDecoration {
  final InputDecoration input1;
  final InputDecoration input2;

  MergeInputDecoration({
    required this.input1,
    required this.input2,
  });

  InputDecoration merge() {
    return input1.copyWith(
      alignLabelWithHint: input2.alignLabelWithHint,
      border: input2.border,
      constraints: input2.constraints,
      contentPadding: input2.contentPadding,
      counter: input2.counter,
      counterStyle: input2.counterStyle,
      counterText: input2.counterText,
      disabledBorder: input2.disabledBorder,
      enabled: input2.enabled,
      enabledBorder: input2.enabledBorder,
      errorBorder: input2.errorBorder,
      errorMaxLines: input2.errorMaxLines,
      errorStyle: input2.errorStyle,
      errorText: input2.errorText,
      fillColor: input2.fillColor,
      filled: input2.filled,
      floatingLabelBehavior: input2.floatingLabelBehavior,
      floatingLabelStyle: input2.floatingLabelStyle,
      focusColor: input2.focusColor,
      focusedBorder: input2.focusedBorder,
      focusedErrorBorder: input2.focusedErrorBorder,
      helperMaxLines: input2.helperMaxLines,
      helperStyle: input2.helperStyle,
      helperText: input2.helperText,
      hintMaxLines: input2.hintMaxLines,
      hintStyle: input2.hintStyle,
      hintText: input2.hintText,
      hintTextDirection: input2.hintTextDirection,
      hoverColor: input2.hoverColor,
      icon: input2.icon,
      iconColor: input2.iconColor,
      isCollapsed: input2.isCollapsed,
      isDense: input2.isDense,
      label: input2.label,
      labelStyle: input2.labelStyle,
      labelText: input2.labelText,
      prefix: input2.prefix,
      prefixIcon: input2.prefixIcon,
      prefixIconColor: input2.prefixIconColor,
      prefixIconConstraints: input2.prefixIconConstraints,
      prefixStyle: input2.prefixStyle,
      prefixText: input2.prefixText,
      semanticCounterText: input2.semanticCounterText,
      suffix: input2.suffix,
      suffixIcon: input2.suffixIcon,
      suffixIconColor: input2.suffixIconColor,
      suffixIconConstraints: input2.suffixIconConstraints,
      suffixStyle: input2.suffixStyle,
      suffixText: input2.suffixText,
    );
  }
}
user_177791700
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