How to apply theme on MaterialButton or RaisedButton?

Question

Can someone help to point how do we define base theme for button and use it on every button? Everywhere I look only found textTheme but not buttonTheme

Answer 1

One way to do it is to Define buttonTheme in theme in MaterialApp:

E.g:

void main() {
  runApp(MaterialApp(
    home: Home(),
    theme: ThemeData(
        accentColor: Colors.redAccent,
        buttonTheme: ButtonThemeData(
           buttonColor: Colors.blueAccent,
           shape: RoundedRectangleBorder(),
           textTheme: ButtonTextTheme.accent,
           ....
    )),
  ));
}

class Home extends StatelessWidget {
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
          title: Text("Button Theme"),
          backgroundColor: Colors.green),
      body: Center(
          child: RaisedButton( //Button Color is as define in theme
        onPressed: () {},
        child: Text("Send"), //Text Color as define in theme
      )),
    );
  }
}

with this all the Buttons defined under this MaterialAppwill Carry this Theme Style.

Text Color will be the accentColor define in the ThemeData as i have defined textTheme: ButtonTextTheme.accent so it will Pick accentColor

Button picking Theme Style As Defined in theme