android - notifyDataSetChanged not refreshing listview fragment -
i have searched as on google, have search as can find on here, @ loss, co-workers unhelpful, want @ , tell me missing causing listview not refresh data. logs showing is containing correct number of elements not showing in list.
public class shiftlistviewfragment extends fragment { private static int total_items = 11; private static string tag = "shiftlistviewfragment"; private listview mlistview; private shiftitemarrayadapter madapter; private arraylist<shiftitem> mshiftitems = new arraylist<shiftitem>(); ; private arraylist<shiftitem> displayshiftitems = new arraylist<shiftitem>(); private button mpageleftbutton; private button mpagerightbutton; private int mpagenumber = 0; private int mpageindex = 0; public static shiftlistviewfragment newinstance() { shiftlistviewfragment shiftlistviewfragment = new shiftlistviewfragment(); return shiftlistviewfragment; } public shiftlistviewfragment() { } public void populateshiftitems() { date clockin = new date("08/17/2015 11:11 am"); date clockout = new date("08/17/2015 11:11 pm"); date breaktimein = new date("08/17/2015 10:11 pm"); date breaktimeout = new date("08/17/2015 10:11 pm"); (int = 0; < 28; i++) { shiftitem shiftitem = new shiftitem(new shiftdto(clockin, clockout, breaktimein, breaktimeout)); mshiftitems.add(shiftitem); } } public void populatedisplayshifts() { int lowerbound = mpageindex * 11; int uppbound = lowerbound + 11; if (uppbound > mshiftitems.size()) { uppbound = mshiftitems.size(); } arraylist<shiftitem> shifts = new arraylist<shiftitem>(); (int = lowerbound; < uppbound; i++) { shifts.add(mshiftitems.get(i)); } displayshiftitems.clear(); madapter.clear(); displayshiftitems.addall(shifts); madapter.notifydatasetchanged(); } public int getpagenumber() { int pages = 0; pages = mshiftitems.size() / total_items; if (pages % 11 != 0) { pages++; } log.d("tag", "totalpages " + pages); log.d("tag", "shift items count:" + mshiftitems.size()); return pages; } private void initviews(view view) { mlistview = (listview)view.findviewbyid(r.id.shift_report_list); mpageleftbutton = (button)view.findviewbyid(r.id.btn_page_left); mpagerightbutton = (button)view.findviewbyid(r.id.btn_page_right); } @nullable @override public view oncreateview(layoutinflater inflater, viewgroup container, bundle savedinstancestate) { final view view = inflater.inflate(r.layout.shift_list_report_fragment, null); initviews(view); populateshiftitems(); mpagenumber = getpagenumber(); madapter = new shiftitemarrayadapter(getactivity(), r.layout.shift_list_item, displayshiftitems, r.color.shift_list_item_bg); mlistview.setadapter(madapter); populatedisplayshifts(); mpagerightbutton.setonclicklistener(new view.onclicklistener() { @override public void onclick(view v) { mpageindex++; if (mpageindex > mpagenumber - 1) { mpageindex = 0; } populatedisplayshifts(); log.d(tag, "page:" + mpageindex + " actual items in list:" + madapter.getcount()); } }); mpageleftbutton.setonclicklistener(new view.onclicklistener() { @override public void onclick(view v) { mpageindex--; if (mpageindex < 0) { mpageindex = mpagenumber - 1; } populatedisplayshifts(); log.d(tag, "page:" + mpageindex + " actual items in list:" + madapter.getcount()); } }); return view; } } and adapter
public class shiftitemarrayadapter extends arrayadapter<shiftitem> { private layoutinflater mlayoutinflater; private int malternatecolorresource; public shiftitemarrayadapter(context context, int resource, arraylist<shiftitem> shiftitems, @colorres int colorresid) { super(context, resource, shiftitems); this.malternatecolorresource = colorresid; this.mlayoutinflater = layoutinflater.from(context); } /** * applies background resources in alternating fashion, based on view's position. */ protected void applybackground(int position, @nonnull view convertview) { if (position % 2 == 0) { convertview.setbackgroundresource(malternatecolorresource); } else { convertview.setbackgroundresource(android.r.color.white); } } @override public view getview(int position, view convertview, viewgroup parent) { viewholder viewholder = null; string clockedin = getitem(position).getintime(); string clockedout = getitem(position).getouttime(); if (convertview == null) { viewholder = new viewholder(); convertview = mlayoutinflater.inflate(r.layout.shift_list_item, null); viewholder.clockedintextview = (textview)convertview.findviewbyid(r.id.time_in); viewholder.clockedouttextview = (textview)convertview.findviewbyid(r.id.time_out); viewholder.dashedtextview = (textview)convertview.findviewbyid(r.id.dash); viewholder.breaktotaltextview = (textview)convertview.findviewbyid(r.id.break_total); viewholder.totaltimetextview = (textview)convertview.findviewbyid(r.id.total_time); viewholder.clockedintextview.settext(clockedin); viewholder.clockedouttextview.settext(clockedout); convertview.settag(viewholder); } else { viewholder = (viewholder)convertview.gettag(); } date breaksin = new date("11/11/2015 11:20 am"); date breaksout = new date("11/11/2015 12:20 pm"); string breakhours = string.valueof( datehelper.gettimeduration(breaksin, breaksout, false).getstandardhours()); string breakmin = string.valueof( datehelper.gettimeduration(breaksin, breaksout, false).getstandardminutes()); viewholder.breaktotaltextview.settext(breakhours + " hr " + breakmin + " min "); applybackground(position, convertview); return convertview; } private class viewholder { public textview clockedintextview; public textview dashedtextview; public textview clockedouttextview; public textview breaktotaltextview; public textview totaltimetextview; } } any , appreciated.
apparently there bug in android list items in listview have trouble defining actual size, solution set list_item.xml specific height instead of wrap_content.
Comments
Post a Comment