What is the purpose of the layout_weight attribute in Android?

The layout_weight attribute is used in a LinearLayout to evenly distribute the remaining space among its children. If a child element’s width or height is set to 0dp in the LinearLayout, the layout_weight attribute can be used to specify the proportion of space that the child element occupies in the remaining space.

The value of the layout_weight attribute is a floating-point number that represents the proportion of space each child element will occupy in the remaining space. For example, if a LinearLayout has two child elements, one with layout_weight=”1″ and the other with layout_weight=”2″, the first child will occupy 1/3 of the remaining space while the second child will occupy 2/3 of the remaining space.

By using the layout_weight attribute, you can achieve a flexible layout that allows child elements to dynamically adjust their size according to the screen size or other conditions.