How to Add Barcodes in FlutterFlow (SfBarcodeGenerator)

Overview

FlutterFlow enables you to create native applications using its graphical interface, reducing the need to write extensive amounts of code. Additionally, it offers the capability to include custom widgets that are not included in the default FlutterFlow widget collection. This article explains how to incorporate our SfBarcodeGenerator widget as a custom widget in FlutterFlow.

To get started with the Flutter Barcode Generator and set up the package, refer to the Getting Started with Flutter Barcodes documentation.

Create a new project

Navigate to the FlutterFlow dashboard and click the + Create New button to create a new project.

Create the custom widget

  1. Navigate to the Custom Code section in the left side navigation menu.
  2. Click on the + Add button to open a dropdown menu, then select Widget.
  3. Update the widget name as desired.
  4. Click on the View Boilerplate Code button on the right side, represented by the [</>] icon.
  5. A popup will appear with startup code; locate the button labeled </> Copy to Editor and click on it.
  6. Save the widget.

Custom Widget

Add the Barcodes widget as a dependency

  1. Click on + Add Dependency; a text editor will appear.
  2. Navigate to Syncfusion® Flutter Barcodes in pub.dev and copy the dependency name and version using the Copy to Clipboard option.
    Version
  3. Paste the copied dependency into the text editor, then click Refresh and save it.

The live version of Syncfusion® Flutter Barcodes has been migrated to the latest version of Flutter SDK. To ensure compatibility, check FlutterFlow’s current Flutter version and obtain the corresponding version of Syncfusion® Flutter Barcodes by referring to the SDK compatibility.

Dependency

If you are using an older version of a dependency instead of the latest one, remove the caret symbol (^) prefix in the version number after pasting the dependency. For example, change ^21.3.0 to 21.3.0.

Since Syncfusion® Flutter Barcodes depends on the Syncfusion® Flutter Core package, make sure to add it as a dependency following the same steps mentioned above.

Import the package

  1. Navigate to the Installing tab on the Syncfusion® Flutter Barcodes page. Under the Import it section, copy the package import statement.
    Package
  2. Paste the copied import statement into the code editor, and then save it.
    Import

Add a widget code snippet in the code editor

  1. Navigate to the Example tab on the Syncfusion® Flutter Barcodes page, and copy the widget-specific code.
    Code
  2. Paste the copied code sample into the code editor, click Format Code, and then save it.
    Code snippet

Compile the code

  1. Click the Compile Code button located in the top right corner.
  2. If there are no errors, save the process. If errors are present, fix them and compile the code again. Once the code has been successfully compiled, save the process.

Compile code

The compilation progress takes 2 to 3 minutes to complete.

Use the custom widget

  1. Navigate to Widget Palette located in the left side navigation menu.
  2. Click on the Components tab.
  3. Your custom widget will be under Custom Code Widgets. Drag and drop the custom widget onto your page.

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