Build the HelloPurr App

Touch the kitty to make it meow! This is the "Hello World" of App Inventor, the first app most people build. You'll learn that app building is about specifying responses to events, in this case playing a "meow" sound in response to a button click.

step 1: HelloPurr is introduced (click for details)

Check out the app and what you'll learn.

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step 2: Create the user interface for the app (click for details)

Upload the kitty image and meow sound file, then build the user interface with a Canvas and Sound component.

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step 3: Program it so that dragging your finger on the kitty causes it to meow. (click for details)

Drag out a Canvas.Dragged event and then plug in a Sound.Play call

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step 4: Install the app on your phone (click for details)

Use the App Inventor companion to install the app on your phone

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step 5: Understand the terminology and concepts behind the HelloPurr app. (click for details)

An app is a set of event-handlers

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Build the HelloPurr App

Build It Follow the video steps below to build the app yourself.

Build It
Follow the video steps below to build the app yourself.