flutter form app that populates a spreadsheet

Set a role for that user - viewer, commenter, or editor.Moving over to how we work in Google Sheets, if we need to collaborate with someone, we follow a similar flow: The role of user permissions makes it so that we as admins can add content to the application such as sponsored posts or making special announcements that are visible to all users, or moderate user’s content so that we can easily delete content that violates our rule of conduct. The backend only allows the operations if it matches the user’s permissions for that action.

When authenticated, a user has a set of permissions, for example, a simple user can read and write posts, while an admin has permission to delete posts.Most apps that interact with a REST API in the backend have the same flow: Which takes us to the question of this article - if Google Sheets is used as a real-time collaboration tool, why not use it as a simple solution backend solution for our apps? How would it work? something that we often do in Excel-like applications.

But sometimes, we may need something more simple, that we can easily manipulate in real-time and derive results such as graphs and arithmetic operations from the data. There are countless solutions that we can use as a backend in our Flutter applications - from Google’s Firebase, to Supabase to even creating your custom backend with Ruby on Rails, Django and many other frameworks. Or multiple fields value like so: _ Google Sheets as a Backend Solution for our Flutter Apps You can either change the value of one field at a time like so: _(Colors.black) var options = Ĭhildren: options.map((c) => Text(c)).toList(), Read this article for step-by-step instructions on how to build your own custom field. To build your own field within a FormBuilder, we use FormBuilderField which will require that you define your own field. On another side, can access all field values without saving form with instantValuesĭebugPrint(_formKey.currentState?.instantValue.toString()) _formKey.currentState?.saveAndValidate() ĭebugPrint(_formKey.currentState?.value.toString()) Validator: pose([ĭecoration: const InputDecoration(labelText: 'Password'),Ĭolor: Theme.of(context).condary, See pub.dev example tab or github code for more details Specific uses # Validate and get values final _formKey = GlobalKey() ĭecoration: const InputDecoration(labelText: 'Email'), Print(val) // Print the text value write into TextField No specific setup required: only install the dependency and use :) Basic use # final _formKey = GlobalKey() The rest of the attributes will be determined by the type of Widget being used.

transform TextField value for numeric field from String to num This event function will fire immediately the the field value changesįunction that transforms field value before saving to form value. This will form the key in the form value Mapĭetermines whether the field widget will accept user input.ĭefines the border, labels, icons, and styles used to decorate the field.Ī FormFieldValidator that will check the validity of value in the FormField In order to create an input field in the form, along with the label, and any applicable validation, there are several attributes that are supported by all types of inputs namely: Attribute

FormBuilderTextField - A Material Design text field input.

FormBuilderSwitch - On/Off switch field.

FormBuilderSlider - For selection of a numerical value on a slider.

FormBuilderRangeSlider - Used to select a range from a range of values.

FormBuilderRadioGroup - Used to select one value from a list of Radio Widgets.

FormBuilderFilterChip - Creates a chip that acts like a checkbox.

FormBuilderDropdown - Used to select one value from a list as a Dropdown.

FormBuilderDateTimePicker - For Date, Time and DateTime input.

FormBuilderDateRangePicker - For selection of a range of dates.

FormBuilderChoiceChip - Creates a chip that acts like a radio button.

FormBuilderCheckboxGroup - List of checkboxes for multiple selection.

FormBuilderCheckbox - Single checkbox field.

React to form fields changes and validations.

Create a form with several type of inputs.

Implement reset, clear or other button into field.

This gives you a convenient way of adding common ready-made input fields instead of creating your own FormBuilderField from scratch. This package helps in creation of data collection forms in Flutter by removing the boilerplate needed to build a form, validate fields, react to changes and collect final user input.Īlso included are common ready-made form input fields for FormBuilder.

Flutter form app that populates a spreadsheet