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App Inventor
Question | Answer |
---|---|
Properties | Memory slots for storing information about the component. |
Behavior | How the app should respond to events. |
Functions | Things you can do to or with a component. |
Call | To make a function happen. |
Event handler | To call an event and the set of functions performed. |
Timer event | An event triggered by the passing of time. |
Variables | Information stored in memory slots. |
Main types of components | Visible and non-visible. |
Non-visible components | Components you can't see. |
Visible components | Components you can see. |
User interface | Buttons, text boxes, and labels. |
Components designer | Specifies the objects of the app. |
Blocks editor | Programs how the app responds to user and external events. |
Linear sequence | A traditional app follows the linear sequence such as A, B, C. |
Persistent data | Data that is retained even after an app is closed. |
Web-enabled apps | Apps that communicate with the Web by sending requests to web service APIs. |