Lecture 5: Styles and Themes

Question 1

What is the difference between styles and themes?

Answer 1

Style: XML objects designed to apply styling to a particular view

Theme: XML object designed to apply styling to the entire app or activity. Themes apply to all views within an app or activity

Question 2

What type of file is the styles file and where is it stored?

Answer 2

XML

/res/values/styles.xml

Question 3

How can you apply a style to a view?

Answer 3

Set the parents view’s style property with @filename/stylename

Question 4

How can you apply a theme?

Answer 4

Once youve declared a style you can use it as a theme by modifying the app manifest and adding the android:theme property to the ‘application’ or ‘activity’ objects

Question 5

What property is used to define which style a style object inherits from?

Answer 5

parent

Question 6

How many style properties can a view have?

Answer 6

1

Question 7

What is the work around for applying additional styling to a view?

Answer 7

Use a theme or inherit the style then modify it

Question 8

Overlapping style properties in a child will ____ the inherited style properties of the parent object

Answer 8

override

Question 9

What is the styling hierarchy?

Answer 9

1. Applying character- or paragraph-level styling via text spans to TextView-derived classes
2. Applying attributes programmatically
3. Applying individual attributes directly to a View
4. Applying a style to a View
5. Default styling
6. Applying a theme to a collection of Views, an activity, or your entire app
7. Applying certain View-specific styling, such as setting a TextAppearance on a TextView

Question 10

What property is used to style text and what does it style?

Answer 10

TextApperance

Styles font size, color, etc

Question 11

What is the file used to store colors, what type of file is it, and where is it stored?

Answer 11

colors.xml

/res/values/

Question 12

How do you reference colors defined in the colors.xml?

Answer 12

@colors/colorPrimary

Question 13

What function can you use to programmatically set themes for activities?

Answer 13

setTheme() and recreate()