均匀地按出空格键（水平）

Question

I'm trying to space some buttons out across the display and have them be an equal distance apart.

Here's my view xml at the moment http://pastebin.com/DvURNWn3

Answer 1

For each button, change this:

android:layout_width="0dp"

and set parent element's width fill_parent or particular width as below :

android:layout_width="40dp"

It's good practice to set root element to RelativeLayout instead of LinearLayout since nested layout_weight may throw Nested weights are bad for performance warning.