android - Margin/Padding in percentage in XML -

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i new in android development. want set margin & padding in xml,not in dp or px in percentage. there way this?

it not possible, though better taking width , height of screen below in java code, , 

 display display = getwindowmanager().getdefaultdisplay();   int width = display.getwidth();  int height = display.getheight();

then calculate margin screen size, , set by

  setmargin(int x) //method of view/layout.

this way can set margin depending on screen size not fixed screen, , setting in percentage java code.


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