What is android:weightSum in android, and how does it work?

Question

I want to know: What is android:weightSum and layout weight, and how do they work?

Answer 1

Weight sum works exactly as you want (like other answers you don't have to sum all the weights on parent layout). On child view specify the weight you want it to take. Don't forget to specify

android:layout_width="0dp" 

Following is an example

This will look like