java - Antialias on clipPath on layout -

i have layout, has several views inside of - toolbar, recyclerview , few separators (which simple views height of 2dp , match_parent width). wanted put mask on layout - important part of round corners whole layout (and not views itself). decided create own linearlayout class overloaded dispatchdraw function , managed nice result... except 1 thing - corners not antialiased.

tl;dr there way put antialias clippath function? know can turn on in paint , use xfermodes mask layout, have no clue how draw mask , draw else (without knowing what's inside).

here layout code (except classname, simple constructors , path field):

@override protected void dispatchdraw(canvas canvas) {     if (path == null) {         path = new path();         float margin = myapplication.getinstance().getmetrics().density * 5;         path.addroundrect(new rectf(margin,margin,getwidth()-margin, getheight()-margin),                 margin*2, margin*2, path.direction.cw);     }     canvas.clippath(path);     super.dispatchdraw(canvas); }  @override protected void ondraw(canvas canvas) {     super.ondraw(canvas); } 

try this answer, of course instead of mmask.draw(canvas) "mask" made ninepatchdrawable need call canvas.drawpath() paint set porterduff.mode.dst_in xfer mode