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flutter - How to change ElevatedButton splash color

Flutter - ElevatedButton Splash Color
The ElevatedButton class represents a material design elevated button. The flutter developers can use elevated buttons to add dimension to otherwise mostly flat layouts such as in long busy lists of content, or in wide spaces. The flutter developers should avoid using elevated buttons on already-elevated content such as dialogs or cards. The flutter developers can override the ElevatedButton style with its style parameter. The static styleFrom() method is a convenient way to create an ElevatedButton ButtonStyle from simple values.

The following flutter application development tutorial will demonstrate how to set or change an ElevatedButton widget’s splash color (pressed state overlay color). Here we will use the ElevatedButton class’s style property to set the ElevatedButton splash color (pressed state color). We also add padding to the ElevatedButton to make its size bigger.

The ElevatedButton class’s style property value is a ButtonStyle object which customizes this button's appearance.

The ButtonStyle class represents the visual properties that most buttons have in common. The ButtonStyle class’s all properties are null by default.

ButtonStyle class’s many properties are MaterialStateProperty objects which resolve to different values depending on the button's state. The material state properties represent values that depend on a widget's material state.

The MaterialStateProperty resolveWith() is a convenient method for creating a MaterialStateProperty from a MaterialPropertyResolver function alone.

The flutter developers can set or change the splash color (pressed state overlay color) of an ElevatedButton by sending a value to the ButtonStyle class’s overlayColor property. Here we only set the overlay color for the material’s pressed state.

The ButtonStyle class’s overlayColor property defines the highlight color that's typically used to indicate that the button is focused, hovered, or pressed.

The MaterialState enum represents the interactive states that some of the Material widgets can take on when receiving input from the user.

The MaterialState pressed const represents the state when the user is actively pressing down on the given widget. We will set an overlay color for this pressed state of the ElevatedButton. The developers called it splash color.
main.dart

import 'package:flutter/material.dart';

void main(){
  runApp(
      MaterialApp(
        home: Scaffold(
          appBar: AppBar(
              title: const Text("ElevatedButton Splash Color")
          ),
          body: Center(
              child: ElevatedButton(
                onPressed: (){},
                child: const Text("Click Me"),
                style: ButtonStyle(
                    overlayColor: MaterialStateProperty.resolveWith(
                          (states) {
                        return states.contains(MaterialState.pressed)
                            ? Colors.pink
                            : null;
                      },
                    ),
                    padding: MaterialStateProperty.resolveWith(
                            (states) => const EdgeInsets
                            .symmetric(horizontal: 64, vertical: 36)
                    )
                ),
              )
          ),
        ),
      )
  );
}
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