Chapter 4 Android Bootcamp 3rd edition 1. What is the name of the icon on the An

Question

Chapter 4 Android Bootcamp 3rd edition

1. What is the name of the icon on the Android home screen of your device that opens

an app?

2. What is the name of the icon that appears at the top-left of the opening bar across the

opening screen (Activity) of the app?

3. What is the preferred prefix for a filename and file extension of the icon described in

question 1?

4. To display a custom icon, what wizard can you use in Android Studio?

5. Which Plain TextView property is changed to identify the color of the control?

6. Which primary color is represented by the hexadecimal code of #00FF00?

7. What is the name of the property used to center an EditText control hint property

horizontally?

8. Using the layout:margin property, in which text box would you type 18dp to move a

control 18 density pixels down from the upper edge of the emulator?

9. When a RadioGroup control is placed on the emulator, the first RadioButton control is

selected by default. Which property is set as true by default?

10. Write an If statement that tests if the value in the variable age is between 18 and 21

years of age, inclusive, with empty braces.

Explanation / Answer

1)Answer:

launcher icon

Explanation:

launcher icon is the name of the icon on the Android home screen of your device that opens an app.

2)Answer:

Action Bar Icon

Explanation:

Action Bar Icon the name of the icon that appears at the top-left of the opening bar across the opening screen (Activity) of the app

3)Answer:

ic_launcher,.png

Explanation:

ic_launcher is the preferred prefix for a filename of the launcher icon.

.png is the  preferred file extension of the launcher icon.

4)Answer:

Image Asset Wizard

Explanation:

You can use the Image Asset Wizard to display a custom icon.

5)Answer:

textColor

Explanation:

textColor is the Plain TextView property it changed to identify the color of the control.

6)Answer:

Green
(yellow is #FFFF00, red is #FF0000, blue is #0000FF)

7)Answer:

center_horizontal gravity property

Explanation:

center_horizontal gravity property is the name of the property used to center an EditText control hint property

horizontally.

8)Answer:

Top

10)Answer:

if ( age >= 18 && age <=21) {
}

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