Question Type: Barcode Scanner



Barcode Scanner questions allow the user to scan a barcode with the device's camera. This feature is supported on most, but not all, devices that have a fairly high resolution camera with auto-focus. If the camera on a mobile device does not have auto-focus capability, it is still possible to capture and decode barcodes; however, the user must manually place the camera and/or barcode so that is in focus. TrueContext also supports the Zebra Android Barcode Scanner.

The following example shows a Barcode Scanner question on an iOS device:


Form Builder

In the Form Builder, the Barcode Scanner question looks like this:


The Question Edit screen for the Barcode Scanner question type has three tabs: General, Properties, and Help Options.



Unique ID

The Unique IDClosed A Unique ID refers to the specific identifier of a question, form page, form section, or Data Destination. Unique IDs are used as reference points when pulling data for conditional logic, Analytics projects, Data Destinations, and Documents. is the reference for the question. For more information on Unique IDs, read: Overview: Unique IDs. A Unique ID can either be auto-generated based on the question text, or customized.

Tip:You can set either front- or rear-facing camera as the default for reading barcodes. This is especially useful when scanning barcodes on wall-mounted devices.


Restrictions control how your mobile users interact with a question. They can be set on the question itself or controlled by Conditional Logic.

The following table shows which restrictions you can set for the question type. Note that:

  • indicates a restriction that you can configure.

  • * indicates a restriction that is always on.

  • ✘* indicates a restriction that is always off.

  Required Read-Only Hidden on Device Hidden on Reports

Keep question width to 100%

(Side-by-Side SectionsClosed Side-by-Side Sections display questions and answers in a condensed, two-column layout. This can make it easier and faster for field users to scan, complete, and confirm the answers in a form. only)

Barcode Scanner


Properties allow you to set up your question in various ways. The Barcode Scanner question type has simple properties, allowing you to specify which kind of barcode will be scanned. You can also apply the Router Setup property to parse and route data to subsequent questions.

Question Properties

Where possible, specify the desired type of barcode in the Properties tab to aid the speed of barcode recognition.

Barcode Standards supported by TrueContext are:

  • UPC (A or E): Universal product code seen on almost all retail products in the USA and Canada.

  • EAN (8 or 13): European Article Numbering international retail product code.

  • Code 39: General-purpose code in very wide use world-wide.

  • Code 128: Very capable code, excellent density, high reliability; in very wide use world-wide.

  • QR Code: Used for material control and order confirmation.

  • ITF: Interleaved 2 of 5 - Compact numeric code, widely used in industry, air cargo.

The following types of barcodes are supported but might be difficult to scan on older devices:

  • PDF 417: Stacked linear barcode format that can be used for postage or boarding passes, for example.

  • Data Matrix: Encodes both text and numeric data, often used for labeling small items.

Note:Other types of barcodes might work, depending on the device hardware capabilities. Test on your target devices before you deploy the form.

Router Setup

The Router Setup property is a question property available for Text Field, Text Area, File Upload, and Barcode Scanner question types. You can use the Router Setup to parse (subdivide) long strings of data captured by a question—such as from a barcode scan—into smaller substrings. You can then push the substrings to subsequent questions in your form.

You can use the Router Setup property to route data from Barcode Scanner questions (source questions) to the supported target question types.

Help Options

Adding “Help” content to forms gives mobile users access to support and other resources out in the field. Help content is available to users through a button embedded beside a question. Any question in the form can include a link to YouTube videos, web pages, or work instructions.

Info:The topic Add Help Options to Questions describes help options in more detail.