Android view getheight() returns wrong px value on some devices -

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i working on feature in app need know exact height of parent view. apparently value wrong on devices (e.g. huawei p8 lite).

i realized wrong when tried drawing @ point (x, view.getheight), point didn't show @ bottom, rather near middle of screen. not case on google nexus.

here snippet of code problem lies:

final overlaybuilder builder = new overlaybuilder(context, parentview, tag);         builder.setonlayoutlistener(new servicecallback<overlaybuilder.overlayrelativelayout>() {             @override             public void onsuccess(overlaybuilder.overlayrelativelayout overlaylayout) {                 viewgroup.marginlayoutparams lp = (viewgroup.marginlayoutparams) createagentbtn.getlayoutparams();                 linearlayout childcontainer     = overlaylayout.getchildcontainer();                  int parentheight                = parentview.getheight();                  view iconview                   = childcontainer.getchildat(0);                 view textview                   = childcontainer.getchildat(1);                 int nocontentviewheight         = iconview.getheight() + textview.getheight();                   int btnheight                   = createagentbtn.getheight() + lp.topmargin + lp.bottommargin;                 int bottomoffset                = ((parentheight - btnheight) / 2) - (nocontentviewheight / 2);                 int astarty                     = bottomoffset + nocontentviewheight;                 int aendy                       = parentheight - btnheight;                  arraylist<integer> layoutrules = new arraylist<>(relativelayout.align_parent_bottom);                 builder.setgroupparams(layoutrules, relativelayout.layoutparams.match_parent, relativelayout.layoutparams.wrap_content, 0, bottomoffset, linearlayout.vertical)                 .drawcurvedarrow(300, astarty, 300, aendy, -225, r.color.turtle_green, overlaybuilder.standard_linesize, overlaybuilder.standard_arrowsize).layout().commit();             }              @override             public void onfail(throwable t) {                 log.e(tag, "failed display empty state onboarding");             }         });

for record, class called overlaybuilder builder class, used drawing different things on screen @ runtime. in case drawing arrow between 2 points, both beginning , end of line/arrow wrong on huawei p8.

i suspect getheight() returns dp in cases.. , in px on google nexus. if case, how can fixed properly? variable parentheight, 1 contains wrong height.

any appreciated.


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