Answers for "how to set the background color in flutter in elevated button"

elevated button flutter color

ElevatedButton(
  style: ButtonStyle(
    backgroundColor: MaterialStateProperty.resolveWith<Color>(
      (Set<MaterialState> states) {
        if (states.contains(MaterialState.pressed))
          return Colors.green;
        return null; // Use the component's default.
      },
    ),
  ),
)

add background color to button flutte

bool isButtonPressed = false;

RaisedButton(
            color: isButtonPressed ? Colors.green : Colors.red,
            onPressed: () {
              setState(() {
                isButtonPressed =!isButtonPressed;
              });
            },
          ),