android - ImageView black background on some devices -

i have listview contains images (each row), width of each image match_parent , height 0.4 of width.

now works fine, except on big screen devices (like nexus 7...), instead of images see black background

here listview adapter

public class adapter extends arrayadapter<string>{     int width = 0;      private final activity context;     private final string[] title;     private final int[] img;      public plansadapter(activity context,                         string[] title, int[] img) {         super(context, r.layout.listsingle, title);         this.context = context;         this.title = title;         this.img = img;     }      @override     public view getview(int position, view convertview, viewgroup parent) {         layoutinflater inflater = context.getlayoutinflater();         convertview = inflater.inflate(r.layout.listsingle, null, true);         textview title = (textview) convertview.findviewbyid(r.id.text);         title.settext(title[position]);         imageview img = (imageview) convertview.findviewbyid(r.id.img);         img.setimageresource(img[position]);         width = ((activity) getcontext()).getwindowmanager().getdefaultdisplay().getwidth();         double = (double) 44/96;          img.getlayoutparams().height = (int) (a*width);          relativelayout bghover = (relativelayout )convertview.findviewbyid(r.id.bghover);         bghover.getlayoutparams().height = (int) (a*width);           return convertview;     } } 

in next activity use same code , see image.

width = getwindowmanager().getdefaultdisplay().getwidth(); double = (double) 44/96; img.getlayoutparams().height = (int) (a*width); 

i think device memory isn't big enough show images

here logcat

eglsurfaceattrib not implemented

dropping event due no window focus: keyevent { action=action_down, keycode=keycode_alt_right, scancode=100, metastate=meta_alt_on|meta_alt_right_on, flags=0x8, repeatcount=497, eventtime=242910, downtime=216396, deviceid=1, source=0x301 }

dropping event due no window focus: keyevent { action=action_down, keycode=keycode_alt_right, scancode=100, metastate=meta_alt_on|meta_alt_right_on, flags=0x8, repeatcount=498, eventtime=242960, downtime=216396, deviceid=1, source=0x301 }

gc_for_alloc freed 1461k, 8% free 18275k/19844k, paused 6ms, total 6ms

i think device runs out of memory or this. i've made photos load in background , works fine.