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Viewer Pane Components Pane

Palette Pane

Properties Pane
The important sections of the project designer window are:

Palette Pane: Contains components like buttons and images to add to your app.
Viewer Pane: The white area to arrange and view components.

Components Pane: Lists all added components in a hierarchy.
Properties Pane: Shows and lets you change the properties of selected

components.

TYPES OF UI COMPONENTS

User Interface (UI) components are the
visual elements that users can see and

interact within your app. It provides a wide
range of UI components that you can drag

and drop to design your app.
Here’s a list of the most commonly used UI

components in MIT App Inventor:

1. Buttons: Triggers an action when
tapped, like opening a screen or
showing a message.

2. Label: Displays text such as messages or instructions.

Creating Apps with MIT App Inventor 99