40 Questions
What attribute of a View object supports defining the text size?
textSize
Which XML layout attribute defines layout parameters appropriate for the ViewGroup?
layout_something
Where should the layout resource from the application code be loaded?
In the Activity.onCreate() method implementation
What does 'wrap_content' value for width and height do in Android layouts?
Sizes the view to the dimensions required by its content.
Which class extends ViewGroup.LayoutParams and defines size and position for child views?
ViewGroup
Which method is used to load the layout resource in Android activities?
setContentView()
What is the geometry of a view in Android layouts?
Rectangle
What is the purpose of creating alternative layout resources in Android Studio?
To optimize UI design for certain screen sizes
What is the first step to create a suggested qualifier in Android Studio for layout optimization?
Click the arrow beside the file tab in the default layout
Which method is used to define the layout hierarchy in Android XML files?
What layout type in Android allows complex layouts to be quickly created without nesting other layout types?
ConstraintLayout
Which class in Android can be used as a layout that subclasses AdapterView to populate views at runtime?
AdapterView
What component acts as a middleman between the data source and AdapterView layout in Android?
Adapter
Which layout type in Android is tightly integrated into the Layout Editor tool of Android Studio?
ConstraintLayout
What are examples of input controls in an Android app's user interface?
SeekBars, ZoomButtons, ToggleButtons, Checkboxes
What type of UI components do Android widgets offer?
View and ViewGroup subclasses
How can a layout be declared in an Android application?
Using XML layout or instantiating layout elements at runtime
What is the purpose of the XML vocabulary provided by Android for layouts?
Quick design of UI layouts with nested elements
What must each layout file in Android contain?
Exactly one root element which is a View or ViewGroup object
Which of the following is NOT a type of layout model provided by Android?
TabLayout
What does getTop() return when invoked on a view?
The Y coordinate of the view
Which layout type is recommended in Android 7 and later?
Constraint Layout
How does LinearLayout align its children?
In a single direction, vertically or horizontally
What is the attribute used to specify the layout direction in LinearLayout?
android:orientation
Why is it recommended to keep the layout hierarchy as shallow as possible?
Shallow hierarchy means faster UI rendering
Which layout supports assigning a weight to individual children using the layout_weight attribute?
LinearLayout
In a vertical list within a LinearLayout, how are the children stacked?
One per row
Which layout allows views to be displayed in relative positions to sibling elements or the parent RelativeLayout area?
RelativeLayout
What attribute can be used to define how each view should be displayed in a ConstraintLayout?
constraint settings
Which layout introduced in Android 7 allows detailed positioning instructions for views?
ConstraintLayout
What is an Android View?
An object that draws something on the screen that the user can interact with
Which type of View is a ViewGroup in Android?
An invisible container holding other View objects
What is the purpose of a ViewGroup in Android app development?
To define the structure for a user interface
In Android, what does a layout do?
Defines the structure for a user interface
Which type of View in Android is responsible for organizing child views?
LinearLayout
What differentiates a ViewGroup from a regular View in Android?
A ViewGroup organizes child views while a regular View does not
What role does a RelativeLayout play in Android app design?
It arranges child views relative to each other or to the parent
Which type of layout in Android allows you to define constraints between different elements?
ConstraintLayout
In Android, what is the main function of ConstraintLayout?
Allows you to define constraints between elements
What does Linear Layout do in Android?
Organizes views linearly
Learn about the stacking behavior of children in a LinearLayout, the concept of layout_weight for assigning importance to views, and how margins between children are respected. Discover how LinearLayout handles vertical and horizontal lists based on the attributes and weights assigned to its children.
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