Podcast
Questions and Answers
Which of the following is NOT a characteristic of the Notifier component's ShowMessageDialog?
Which of the following is NOT a characteristic of the Notifier component's ShowMessageDialog?
- The message automatically disappears after being displayed. (correct)
- The message disappears only after the button in the dialog is pressed.
- It allows setting the button text content.
- It allows setting the title name.
Which commands can open another Screen? (Select all that apply)
Which commands can open another Screen? (Select all that apply)
- Command from the Screen component for AboutScreen.
- Command from the Control option to open another screen with start value. (correct)
- Command from the Control option to open another screen. (correct)
- Command from the Screen component for openScreenAnimation.
Where is the origin point (0,0) of the Canvas component located?
Where is the origin point (0,0) of the Canvas component located?
- In the upper left corner of the Canvas component. (correct)
- In the center of the Canvas component.
- In the lower right corner of the Canvas component.
- In the upper right corner of the Canvas component.
Which components require a network connection? (Select all that apply)
Which components require a network connection? (Select all that apply)
Which event can automatically execute without user interaction?
Which event can automatically execute without user interaction?
Which component in App Inventor is considered a non-visual component?
Which component in App Inventor is considered a non-visual component?
What setting maintains the Screen in a portrait orientation?
What setting maintains the Screen in a portrait orientation?
How many times will the Clock Timer event execute if the Timer Interval is set to 100 milliseconds?
How many times will the Clock Timer event execute if the Timer Interval is set to 100 milliseconds?
Which arrangement component allows for horizontal alignment of elements?
Which arrangement component allows for horizontal alignment of elements?
In App Inventor, what option allows a component to become invisible without deleting it?
In App Inventor, what option allows a component to become invisible without deleting it?
Which parameters allow the screen orientation to change with the device's holding position?
Which parameters allow the screen orientation to change with the device's holding position?
What is the appropriate width setting for a component to fill its parent container?
What is the appropriate width setting for a component to fill its parent container?
Which component requires the camera functionality of the device?
Which component requires the camera functionality of the device?
What is the file format used for app projects in App Inventor?
What is the file format used for app projects in App Inventor?
What data type is returned when a CheckBox is checked?
What data type is returned when a CheckBox is checked?
Flashcards
Invisible component in App Inventor
Invisible component in App Inventor
A component in App Inventor that doesn't appear on the screen.
Portrait Screen Orientation
Portrait Screen Orientation
Screen displays vertically.
Landscape Screen Orientation
Landscape Screen Orientation
Screen displays horizontally.
Screen Orientation - Unspecified
Screen Orientation - Unspecified
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Clock Timer Interval 100
Clock Timer Interval 100
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Fill parent (width)
Fill parent (width)
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Automatic width
Automatic width
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Horizontal Arrangement
Horizontal Arrangement
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Setting Visible to false
Setting Visible to false
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Components requiring camera
Components requiring camera
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Notifier ShowMessageDialog characteristic (incorrect option)
Notifier ShowMessageDialog characteristic (incorrect option)
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Commands to open another screen
Commands to open another screen
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Canvas origin (0,0)
Canvas origin (0,0)
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Components requiring internet connection
Components requiring internet connection
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Automatic event trigger
Automatic event trigger
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Study Notes
App Inventor Quiz - Key Concepts
-
Invisible Components (Question 1): Sound is an invisible component in App Inventor.
-
Screen Orientation - Portrait (Question 2): Using
Portraitwill keep the screen in a vertical orientation. -
Screen Orientation - Landscape (Question 3): Using
Landscapekeeps the screen horizontal. -
Screen Orientation - Automatic (Questions 4):
UnspecifiedandSensorallow the screen to change orientation automatically based on device rotation. -
Clock Component Timer Interval (Question 5): A Timer Interval of 100 results in the Clock Timer event executing 10 times per second.
-
Component Sizing - Fill Parent (Question 6): Setting
widthtoFill parentmakes a component expand to fill its container. -
Component Sizing - Automatic (Question 7): Setting
widthtoAutomaticallows a component to adjust its width based on its content. -
Horizontal Arrangement (Question 8):
HorizontalArrangementarranges components horizontally. -
Component Visibility (Question 9): Using
Visibleproperty allows to control if a component is visible in the app or not. -
Camera Components (Question 10):
CamcorderandCameracomponents require access to the device's camera. -
Components Not Allowed in Canvas (Question 11):
Image, andCameracomponents can´t be placed within aCanvascomponent. -
Initialize Event (Question 12): The
Initializeevent in theScreencomponent executes code when the app first loads. -
Background Image Setting (Question 13): The
Ballcomponent does not have aBackground Imageproperty. -
App Inventor File Format (Question 14):
.aiais the App Inventor project file format. -
Android Install File Format (Question 15):
.apkis the Android installation file format. -
Valid Project Name (Question 16):
21050101projectandproject2015are not valid names. -
CheckBox Data Type (Question 17): A
CheckBoxreturns aLogicvalue (true/false) when checked. -
Font Sizing (Question 18):
FontSizeproperty controls the font size of a component's text. -
Notifier Component - ShowMessageDialog (Question 19): The
ShowMessageDialogin theNotifierautomatically disappears after a delay. -
Opening Another Screen (Question 20): Use the
Controloptions ofopen another screencommands andopen another screen with start valuecommands to move to different screen. -
Canvas Origin (Question 21): The origin (0, 0) of the
Canvascomponent is at its top-left corner. -
Network Components (Question 22):
WebViewerandSpeechRecognizercomponents require internet connection. -
Automatic Event Execution (Question 23): The
Initializeevent executes automatically when the app starts, without requiring user interaction.
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Description
Test your knowledge of key concepts in App Inventor with this quiz. From invisible components to screen orientations and timer intervals, assess your understanding of essential elements that power your app development. Perfect for beginners and those looking to refresh their skills!
