How to create a custom feedback widget for your FlutterFlow app?

Step 1: Install Flutter and FlutterFlow

Before we create a custom feedback widget on your FlutterFlower app, first you need to install Flutter and FlutterFlow. Flutter is a UI framework from Google, which we will use to create our custom widgets, while FlutterFlow is a tool that can help us design applications faster by using their custom prebuilt UI components.

• To download Flutter, you can head on to the Flutter Official site https://flutter.dev and download the latest stable release.
• To install FlutterFlow, you can visit the official website at https://flutterflow.io/ and create an account.
• Once done, you can start a new Flutter project in your IDE. Ensure to choose Flutter as your project framework.

Step 2: Define your Custom Feedback Widget

Create a new file named feedback_widget.dart in your Flutter project. This is where the logic and UI for your custom feedback widget will be written.
Start by importing Flutter package to your Dart file

import 'package:flutter/material.dart';

Then, define the widget:

class FeedbackWidget extends StatefulWidget {
  @override
  _FeedbackWidgetState createState() => _FeedbackWidgetState();
}

class _FeedbackWidgetState extends State<FeedbackWidget> {
  @override
  Widget build(BuildContext context) {
    return Container();
  }
}

This is the skeleton for your custom feedback widget. It's recommended to use StatefulWidget for a feedback widget since user feedback could change the state of your widget.

Step 3: Define the Structure of the Feedback Widget

We will now add some structure to your feedback widget. For our example, we'll use a simple layout containing a text and an icon button.

class _FeedbackWidgetState extends State<FeedbackWidget> {
  @override
  Widget build(BuildContext context) {
    return Row(
       mainAxisAlignment: MainAxisAlignment.spaceEvenly,
       children: [
           Text('Was this helpful?'),
           IconButton(
               icon: Icon(Icons.thumb_up),
               onPressed: () {
                   // handle positive feedback
               }
           ),
           IconButton(
               icon: Icon(Icons.thumb_down),
               onPressed: () {
                   // handle negative feedback
               }
           )
       ]
     );
  }
}

This will display a row with a text asking 'Was this helpful?' and two buttons, one for positive feedback (thumbs up) and one for negative feedback (thumbs down).

Step 4: Implement Feedback Logic

With your structure in place, you're now ready to add functionality to your widget buttons.

class _FeedbackWidgetState extends State<FeedbackWidget> {
  void handlePositiveFeedback() {
    print('Positive feedback received');
  }

  void handleNegativeFeedback() {
    print('Negative feedback received');
  }

  @override
  Widget build(BuildContext context) {
    return Row(
       mainAxisAlignment: MainAxisAlignment.spaceEvenly,
       children: [
           Text('Was this helpful?'),
           IconButton(
               icon: Icon(Icons.thumb_up),
               onPressed: handlePositiveFeedback,
           ),
           IconButton(
               icon: Icon(Icons.thumb_down),
               onPressed: handleNegativeFeedback,
           )
       ]
     );
  }
}

This implementation just prints a statement in the console whenever a feedback button is pressed. In your app, this could be posting the feedback to your application server or any other action that you decide.

Step 5: Use the Feedback Widget in Your Apps

With all that, your custom feedback widget is ready for use. You can now import it to the required pages and customize it further as you deem fit.

Here's an example of how you can use your widget:

import 'package:flutter/material.dart';
import 'package:your_package/feedback_widget.dart';

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        body: Center(
          child: FeedbackWidget(),
        ),
      ),
    );
  }
}

void main() {
  runApp(MyApp());
}

That's it! You have created a simple feedback widget and used it in your Flutter app. You can customize and extend this widget to better fit the requirements of your specific app.