Barcode control

The Barcode Control is an Advance control used for enabling barcode scanning for Mobile apps. The scanner uses the camera of the mobile phones to scan the barcode and fetch the related code text.

Here for this example, we have submitted the data to a sheet using the insert sheet task. You can link the output of the barcode control to a column in the sheet. The code represented by the barcode would then be stored in the column.

The barcode scanning can be used in applications designed for retail stores, product tracking systems, and so on.

Properties

UI properties

  • Label: Label is the text that is displayed above the container box and helps the user to understand what they are supposed to write.

  • Properties: These properties help you customize the Label by changing the text size, weight ( Light, Normal, Bold, Extra Bold, X Extra Bold), alignment (Left, Center, Right, Justified) and color of the label.

  • Type: The Type field is automatically generated depending upon the type of control used. In this case, it is a “scan_barcode” type.

  • Unique Name: A Unique Name is used to uniquely identify a control in your App. Every control that is added on the screen gets an auto-generated Unique Name on the basis of the Label name given to the control.

  • Tooltip: This allows you to add the Tooltip text that would provide a hint to the user for providing input. The Tooltip icon would be visible if you switch on the Show tooltip icon toggle property available below.

  • Description: Is the description that you can add for your controls. The Description would only be visible if you switch on the Show Description toggle property available below.

    • External CSS: With this property, one can imply exclusive CSS on controls. You can customize your control with CSS by selecting the correct class or id of the control. You can read more here.
  • Submit Data: This field lets you determine whether to send the value of the control or not in Workflow based on various control states. There are three conditions that could be set for this field.

    1. Always: When this condition is selected, the data in the text block will be submitted irrespective of the state of the text block.
    2. Never: When this condition is selected, the data in the text block will never be submitted irrespective of the state of the text block.
    3. No When Hidden: When this condition is selected, the data in the text block will be submitted if the text block is visible and not submitted when the text block is hidden.
  • Required: When you select the required option, the field becomes a mandatory field and the user can not submit without filling it.

  • Read Only : When you select this option, the user will no longer be able to edit this field.

  • Hidden: The hidden option helps you to hide the field from the user. This might help to perform some computation you don’t want the user to see or if you want to show certain fields only when a specific condition is met/not met.

  • Caching: When the caching option is selected and if a LOOKUP formula is applied to this control, the value that the LOOKUP returns will be cached and the user will be able to see this value in the field even when the user accesses the microapp later with no connectivity. This option is required when you want your app to be accessible in offline mode as well and getting the latest data from the sheets always is not critical.

  • Hide Label: This option hides the label of the field from the view.

  • Trigger dependents: When you Disable Trigger Dependents, it helps you to reduce or optimize the unnecessary evaluation of the dependent control’s formula. For a detailed explanation refer to this article here ..By default Trigger dependents is enabled. However, in complex apps by switching it off, you would limit the evaluation in the dependent control and in turn ensure quicker response times.

  • Hide on desktop: This option hides the selected control in the desktop view.

  • Hide on Mobile : This option hides the selected control in the mobile view.

  • Dynamic Height : This option dynamically increases /decreases the height of the text control based on the given content.

  • Maintain space when hidden : This option maintains the specified space between controls when a particular control is hidden. When a control is hidden the space is maintained in the preceeding control depending on the space the previous control has occupied.

Note: Dynamic Height, Hide on Mobile, Hide on Desktop , Maintain space when hidden properties are used in Freeflow Editor only.

Properties

  • Theme: Is the color of the outline or border of the barcode scan control.

  • Layout: Is the style of the border of the control. It can be a Dashed line, Outlined which is a single line, or can also be set as Filled that will fill the control.

  • Scan Text: Is the text to be displayed to prompt the user to start Scanning.

  • Rescan Text: Is the text to be displayed to prompt the user to rescan.

  • Action Buttons: Is the style to be used for the action button. It changes the color, size, and weight of the text and the color of the barcode icon.

  • Title Text style: Is the style to be used for the title text. It changes the color, size, weight and alignment of the title text.

How to Use a Barcode Menu Control?

Start with selecting the Barcode Control from the Advance section of the Controls Menu.

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The Barcode Control will then appear on the screen in the builder, you can then set all the above properties as per your requirements.

You can use the Data option to bind data to the barcode control.

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  1. Data: This is the data that does not change over the period of time. Such data is used to assign default values in fields in your application. The static data can be based on the data type i.e. Numeric, Text, and List type data.

  2. Sheets: This allows you to fetch data from a sheet and display it in the fields. Select your sheet from the list and then select the columns to be used. You can also add filters and sort data.

  3. Controls: This allows you to get data from one of the App controls.

  4. Variables: This assigns the value of the variables defined in the app.

  5. Query string: This assigns the value returned by the query string.

  6. LoggedIn User: You can display the properties related to the LoggedIn User like username, usermail, Admin, status, and so on. You can select a single property only. Select column and click Save.

  7. API: This allows you to add an API and select the values returned by the respective API. You can select multiple keys to display values in the detail view.

  8. Custom Formula: This can be used to apply formulas and store the output of those formulas in the detail view rows. You can learn more about formulas here.

Let us consider an example here to submit data for a product, including its barcode. Let us also add a text control to see what is the output of the scanning action. We would select the barcode control in the Bind Data > Control of the Text control. This would enable us to see in the text control the value that is returned by the barcode control.

You can also add a workflow to submit the data to your sheet. Now once your app is ready you can publish it and use the mobile app easily. Run the app on your mobile device, now when you come to the Barcode scan field and click Scan, your mobile phone’s camera would act as the barcode scanner. You can see the code in the text box added or even above the scanner.

Here for this example we have submitted the data to a sheet using the insert sheet task. You can link the output of the barcode control to a column in the sheet. The code represented by the barcode would then be stored to the column.

Preview