dimensions - Android setMaxLines with animation -

i'm using textview viewed in listview item, when item clicked need text viewed instead of first 2 lines.

what i'm doing changing maxlines value 2 (the initial value) maximum integer value.

i need done expand animation. know how expand it, need find new height such can call expand method.

update: i'm using code solve problem, returned full height smaller actual one. think it's px , dp issue:

public int getfullheight(textview tv) {     context context = tv.getcontext();     textview textview = new textview(context);     textview.settext(tv.gettext().tostring());     textview.settypeface(tv.gettypeface());     textview.settextsize(typedvalue.complex_unit_px, tv.gettextsize());     int widthmeasurespec = view.measurespec.makemeasurespec(tv.getlayoutparams().width, view.measurespec.exactly);     int heightmeasurespec = view.measurespec.makemeasurespec(0, view.measurespec.unspecified);     textview.measure(widthmeasurespec, heightmeasurespec);     return textview.getmeasuredheight(); } 

given tv original textview that's 2 lines. if change complex_unit_px complex_unit_dip gets larger full size, white space @ bottom.

best solution can find this: measuring text height drawn on canvas ( android ) or here: http://egoco.de/post/19077604048/calculating-the-height-of-text-in-android

what doing is, creating paint object specified width, placing text , style use in , geting boundaries.

hope helps