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Palette pane: On the left, there is a palette pane from where we can select components like
buttons, images, and other functions required for our app.
View pane: To the right of the palette is the white area where we can view and arrange
added components.
Components pane: This pane shows a list of all the components added to the screen in a
hierarchical view.
Properties Pane: When we click on a component in the viewer, we see its properties listed
here. Properties of the components can be changed from here.
Creating a Talking App
In the Project Designer window, we will design the interface by choosing buttons, images or text
boxes and specify the functionalities of our app.
Adding a Button
Drag and drop a button from the Palette pane to the View pane.
Testing the App
App Inventor allows us to test our app while creating, so, to test your app, connect your android
device and download MI A12 companion. Now follow the given steps.
Step 1: Click on Connect menu.
Step 2: AI Companion from the drop-down list.
Step 3: Open MIT A12 Companion on your device connect by scanning the QR code or
typing the code displayed on your screen.
App Development 115

