How to Disable a Button in Flutter?

We need to make buttons disabled in mobile applications. You created a form to take the user input and a form submit button on mobile application. The button must be disabled user fills all fields of the form.

Syntex

We can use the OutlineButton widget for the take button, the onPressed() method is used to disable that button.

 OutlinedButton(
   onPressed: null,
   child: Text('Disabled Button'),
 )

Let's create an application that contains two buttons: one is enabled and second is disabled using onPressed() method pass null.

Step-by-Step Implementation

Step 1: Create a New Project in Android Studio (File >new flutter project)

Step 2: Adding material package

Import method the runApp method in the main function call first while run the application

import 'package:flutter/material.dart';

void main() {

runApp(RunMyApp());

}

Step 3: Creating a stateless widget

We can create a stateless widget that contains MaterialApp widget,AppBar,etc.

class RunMyApp extends StatelessWidget {

const RunMyApp({super.key});

@override

Widget build(BuildContext context) {

return MaterialApp(home);

}

Step 4: Creating a Outlined widget

Create the outlined button and give text as a child, when the disabled button while passing NULL to on pressed method.

OutlinedButton(

onPressed: null,

child: Text('Disabled Button'),

)

Final code :

 import 'package:flutter/material.dart';

 void main()
 {
   runApp(HomeScreen());
 }
 class HomeScreen extends StatelessWidget {
   const HomeScreen({super.key});
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
       debugShowCheckedModeBanner: false,
       theme: ThemeData(primarySwatch: Colors.green),
       home: Scaffold(
         appBar: AppBar(
           title: Text('Disable Button'),
         ),
         body: Center(
           child: Column(
             children: [
               SizedBox(
                 height: 250,
               ),
               OutlinedButton(
                 onPressed: () {},
                 child: Text('Enabled Button'),
               ),
               SizedBox(
                 height: 50,
               ),
               OutlinedButton(
                 onPressed: null,
                 child: Text('Disabled Button'),
               ),
             ],
           ),
         ),
       ),
     );
   }
 }

How to Disable a Button in Flutter?

Step-by-Step Implementation

Step 1: Create a New Project in Android Studio (File >new flutter project)

Import method the runApp method in the main function call first while run the application

Step 3: Creating a stateless widget

Step 4: Creating a Outlined widget

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