The List Viewer component allows you to add, view and click on items in a list.
List Viewer Overview
Properties
You can customize the List Viewer with the following properties:
Properties
Text Items: set text items of List Viewer
Text Items Color: Set color of Text Items font
Text Items Background Color: Set background color for List Viewer
Text Items Font Size: Set font size of Text Items
Show Arrow: To see an arrow beside each item in the list, set the switch to true
Advanced Properties
Writing Direction (iOS and web only): set writing direction of text items
Background Color: set background color of List Viewer
Layout
X: set the location of your List Viewer on the X-axis in pixels
Y: set the location of your List Viewer on the Y-axis in pixels
Height: set the Height of your List Viewer in pixels
Width: set the Width of your List Viewer in pixels
Visible: To see the text input in your app, set the switch to true
Style
Border Width: Enter how wide you want the border outline of the List Viewer to be
Border Color: Pick a color for the border of the List Viewer
Border Style: Select if you want the border to be a dotted, dashed or solid line
Border Radius: Enter how round you want the edges of the border for the List Viewer to be
Blocks
Set Items of a List Viewer
Short Lists
We recommend adding a short list of items within the app itself as the Screen starts. Although the list block itself can handle a large number of items, practically speaking you probably only want to use this approach if your project has tens of items.
Medium Lists
If you need longer lists of information in your app you can use delimited data. This is very similar to using something like a .csv file. You can have hundreds of items in your list viewer using this method.
Long Lists
For longer lists where you need hundreds or thousands of items in your list, we recommend using the Data Sources component. This gives you three different options for storing your data.
1.
Local Table
2.
Airtable
3.
Google Sheets
Fetching data from a Local Table
Getting data from an Airtable Table
Reading data from a Google Sheet
Choosing Airtable or Google Sheets allows you to create dynamic list viewers. This is where the information displayed to the user changes whenever you change your cloud-based data in Airtable or Google Sheets. Either of these options are ideal for when you need to store thousands of items, or you need to work with items that change frequently.
Property
Description
Text Items
Default (none); items must be in list format
When Item Click
Performs an action when the user clicks on any one of the list items.
Outputs
Name
Data Type
Description
Item
String
Text of selected item
Index
Number
Position of item in List Viewer (starting with 1)
Properties
Height
The set and get height blocks work with the Height property of the list viewer component. Acceptable input values are.
Number of Pixels
Percentage Height
"Fit Contents"
"Fill Container"
The Computed Heightblock returns the on-screen dimensions of the list viewer, after it has been rendered on-screen. The value returned is an integer, representing the size of the list viewer in pixels.
Show Arrow
Choose whether or not the arrow is displayed next to every item in the list viewer.
Text Items
Set or get the list of text items that are displayed in the List Viewer. You must use a list of data here - either locally stored or stored in the cloud.
Visible
The set and get visible blocks are used to show or hide the entire list viewer component. Acceptable values are:
True
False
Width
The Computed Widthblock returns the on-screen dimensions of the list viewer, after it has been rendered on-screen. The value returned is an integer, representing the size of the list viewer in pixels.
The list viewer doesn't currently support pixel or percentage values for the width property.