Best practice for android layout -

layout made

hi quite new android(about 2 week) , read layouts , attributes

but implementing in best way known skilled programmer confusing , can't on own.

i made layout don't think it's implementation of view.

on image attached, used multiple linearlayout in depth

it looks this. used linearlayout layout_weight

layout made

is better use <relativelayout> or <tableview> ?

i want efficiently implement these things.

is safe use "xx dp" ensure same among different screens?

extra question 1) issues faced when implementing. when multiple "match_parent", example

if have

<linearlayout orientation="horizontal"> <textview width="match_parent"> <textview width="match_parent"> </linearlayout>

it behaves framelayout 1 textview displayed.

what want have static table view has 3 fixed container in ratio 1:3:1

   1      3       1  |_ _ |_ _ _ _ |_ _ | 

how can done? how have use "layout_weight" "layout_width" property? have use "wrap_content"? , why? can done tableview??

thank in advance

check example use weight, when use weight width must 0dp:

 <linearlayout     android:layout_width="match_parent"     android:layout_height="wrap_content"     android:weightsum="5">      <textview         android:layout_width="0dp"         android:layout_height="wrap_content"         android:layout_weight="1"         android:text="1" />      <textview         android:layout_width="0dp"         android:layout_height="wrap_content"         android:layout_weight="3"         android:text="2" />      <textview         android:layout_width="0dp"         android:layout_height="wrap_content"         android:layout_weight="1"         android:text="3" />      </linearlayout>