The Art of Doing: Dive Into Android Development with Kotlin - Constraint Layout Basics 2

This video tutorial covers the basics of using constraints in layout design. It explains the necessity of constraints in each direction for every view and demonstrates how to add and delete constraints. The tutorial also shows how to position views relative to each other, ensuring spacing is preserved across different screen sizes and orientations. It explores the concept of bias and size, discussing fixed, wrap content, and match constraint options. Finally, it explains how to use percentages to define view sizes, ensuring adaptability across devices.

Why is it important to have at least one constraint in each direction for every view?

• To ensure the view is visible on the screen

• To prevent the view from overlapping with other views

• To allow the view to change color dynamically

• To maintain the view's position relative to the layout

How can you remove all constraints from a selected view?

• By clicking the delete button in the toolbar

• By right-clicking the view and selecting 'Clear Constraints'

• By dragging the view out of the layout

• By selecting 'Remove All' from the menu

What happens when you constrain a button to both the left and right of the parent layout?

• The button becomes invisible

• The button is centered horizontally

• The button's size increases

• The button moves to the top of the layout

What is the default bias percentage when a view is centered between two constraints?

• 100%

• 75%

• 25%

• 50%

Which size specification should not be used in a constraint layout?

• Match constraint

• Wrap content

• Fixed

• Match parent

How can you specify the height of a view as a percentage of the entire layout?

• By setting the height to 'wrap content'

• By using 'match parent' for the height

• By setting the height to 'match constraint' and adjusting the percentage

• By setting a fixed height in DP

What is the effect of setting both height and width to 0dp in a constraint layout?

• The view becomes invisible

• The view takes up the entire layout

• The view's size is determined by the constraints

• The view's size is fixed at 100dp