java - How to get width and height of resized custom view , before it is drawn -
in custom view .xml , have defined width , height w = 600dp , h = 700dp
. know getmeasuredheight() / getmeasuredwidth() give values of width , height after view drawn , may differ i've given in .xml file , there workaround getmeasuredheight()
, getmeasuredwidth()
values before view drawn on layout, without use of onmeasure()
?
and how calculate changed dp
sizes in different screens ? 600h*700w
when run on emulator converts 300*300
.
you can override onsizechanged()
height , width of view when drawn.refer below:
@override protected void onsizechanged(int w, int h, int oldw, int oldh) { mwidth = w; mheight = h; super.onsizechanged(w, h, oldw, oldh); log.d(tag, "onsizechanged: " + " width: " + w + " height: " + h + " oldw " + oldw + " oldh " + oldh); }
to convert dp pixels can use following code:
sizeinpixels = (int) typedvalue.applydimension(typedvalue.complex_unit_dip, sizeindp, getresources().getdisplaymetrics());
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