App Inventor 14
About this set
Created by:
mfcarrell on April 25, 2012
Subjects:
Description:
Understanding an App's Architechture, Chapter 14 from App Inventor, Create You Own Apps
Classes:
APP's for Handheld Devices, CS Principles SHS
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17 terms
Terms | Definitions |
|---|---|
 components | The ______________ are the the objects are placed (canvases, labels, buttons, etc.) |
| behaviors | The _______________ are how the app responds to user and external events. |
| user interface | The visible components, like buttons, text boxes, images, etc. make up the _______________________. |
| functionality | The non-visible components provide access to the built-in ________ of the device, for example Texting, LocationSensor, TextToSpeech. |
| properties | ______________________ are the memory slots for storing information about the components. |
| properties | Width, height, text, and color are some examples of _______________. |
| behavior | The ____________ defines how an app should respond to events. |
| user | A button click is an example of a(n) ________-initiated event. |
| external | A text arriving to the phone is an example of a(n) ________ event. |
| function | When an event occurs, the app reacts by calling a set of ___________________. |
| event handler | The sequential list of instructions that tell the app how to respond when an event is called is a(n) __________________. |
| Initialize | When the app needs to perform certain functions right as the app begins, the event you should use is Screen1._____________. |
| clock or timer | When you need something to happen based on time, like the ladybug to move every 1/10 of a second, you should use a ___________. |
| sprites | Activities that involve graaphical objects that are interactive within a canvas are ___________. |
| if | An ____ is an example of a conditional block. |
| foreach | _____________ are performed for each item in a list. |
| variable | A _____________ is a memory slot that holds information that is not associated with any component. |
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