Place 3 buttons in a LinearLayout to occupy equal amount of space

Question

i would like to have three buttons taking equal amount of available space horizontally in a row. I used android:layout_gravity. What is the problem?

layout

Answer 1

Put the buttons in a relative layout. add properties to the buttons allignParentleft = true, another allignParentcenter= true and the allignParentRight = true to each button.