10 Questions
What is the purpose of using density-independent pixels (dp) when defining UI layout?
To express layout dimensions or position in a resolution-independent way.
What is the relationship between pixels and density-independent pixels (dp)?
1 dp = 1 pixel on a 160 dpi screen.
What is the significance of using density-independent pixels (dp) in UI design?
Ensures consistent UI across different screen sizes and resolutions.
How does the usage of scale-independent pixels (sp) differ from that of density-independent pixels (dp)?
sp is recommended for specifying font sizes, while dp is used for layout dimensions and position.
What does the term 'Dots per inch (dpi)' refer to in the context of screen resolution?
The number of pixels per inch of a printed or scanned document.
What is the baseline for density-independent pixels (dp units)?
Medium-density screen
What method can be used to ensure density independence in an application's layout dimensions?
Using wrap_content, fill_parent, or the dp unit
What is the purpose of providing alternative bitmap resources for different densities in Android applications?
To ensure consistent display across different screen densities
What is the major advantage of using a vector drawable in Android applications?
Image scalability
What does 'smallestWidth' refer to in the context of screen size and orientation on Android devices?
The smallest possible width for the screen, indicated by the shortest dimension of the available screen area
This quiz covers topics such as the lifecycle of multiple screens, intent in mobile programming, design considerations for multiple screens, event listeners, activity lifecycle, density units, and drawable images.
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