Android image displaying differently despite same pixel density -

i have 2 different png's both 48px x 48px. however, when assign both imageview, 1 of images displays larger other. code have follows:

        switch (id) {             case 0:                 iconid = r.drawable.ic_launcher;                 break;             case 1:                 iconid = r.drawable.gmail;                 break;         } 

the above image displayed in following imageview:

<imageview         android:id="@+id/statusicon"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_alignparentleft="true"/> 

the launcher icon 1.5x bigger gmail in listview though exact same pixel size. going on?

sometimes android try scale pictures on fly. try putting them in raw res folder , if system trying scale things should fix it.