Create App with Timer Object that Queries Website Data
This app shows how to create a timer object in App Designer that executes a function at
regular time intervals. In this case, the app queries the wind speed from a web site every
five seconds and plots the returned value.This example also demonstrates the following app building tasks:- Writing a callback for an object created programmatically (in this case, the timer
object) - Configuring a timer object to execute its callback at regular intervals
- Starting the timer when the user clicks the Start button
- Stopping the timer when the user clicks the Stop button
- Deleting the timer when the app closes
18 App Designer Examples