How to create a custom checkout screen for your FlutterFlow app?

Creating a custom checkout screen for your FlutterFlow app is a beneficial way to improve the user experience, and it will allow you to have a tailor-made checkout process according to your business needs.

Before we start, ensure that you have sufficient knowledge in working with FlutterFlow, Dart programming language, and basic understanding of payment systems or e-commerce platforms. This tutorial assumes you have FlutterFlow already running on your computer.

Step 1: Start Your FlutterFlow Project

Launch your FlutterFlow dashboard. Here, choose to create a new project by hitting the 'New App' button. A window prompting details about the app will appear. Fill in the necessary data: the app's name, and choose an applicable template from the available ones or start from scratch.

Step 2: Design Your App Layout

The initial creation process will redirect to the design layout page. Here, you will be able to see a workspace where you can create a new UI block. Hit the '+ New' button to create a new one. For this tutorial, name it 'CheckoutScreen'.

Step 3: Create Your Checkout Form

Once your new block is created, you can now add different components by dragging them from the left-hand side panel right into the block. Drag a 'Form' component into the block, and then add the necessary text fields required for a checkout process, such as name, address, contact info, payment options etc., by selecting 'Text Field' from the panel and dragging it into the 'Form' component. Make sure to set the appropriate 'Name' properties for each text field, it will be needed during the programming phase.

Step 4: Add Submit Button

Every form needs a Submit button. In the same way, drag the 'Submit' button into the 'Form' component. After adding the button, go to the right-side panel to set the properties of the button. Rename it to 'Confirm Purchase' or any caption that suits your business preference.

Step 5: Configure the Validation Settings

Click each 'Text Field' you have created, and in the right-side panel, set the validation for each one under 'Form Validation'. This can include making the field mandatory, setting input type, etc.

Step 6: Set the Submit Button Action

After setting up your form, the next thing is to set what happens when the user clicks on the 'Submit' button. For this, select the button and go to the 'On-Tap' action in the properties panel. Here, choose 'Make API Call' or 'Navigate to' from the dropdown, depending on your preferences.

Step 7: Programming Your Checkout Screen

After designing your checkout screen, navigate to the ‘Code’ section. Use dart programming language in order to define what happens when a user submits the form. If you have any database or external APIs, configure the code to send the data to these endpoints.

Step 8: Testing Your Checkout Screen

Before publishing your app, ensure to test it on a real device. On the top-right section of your screen, click 'Preview App' and use the given URL to share with any device where your app will run.

Step 9: Publishing Your App

If everything works fine, navigate to the publish section on the left panel. Follow the instructions to publish your app on the preferred platform (web, iOS, Google Playstore).