android - Display different objects in the same ListAdapter -

i display different types of objects in same listview, don't know how differentiate these objects via getitem(position)

the listview displays list of messages can either chat, either notification, , items chat , notification have different layout.

this adapter :

public class mailboxadapter extends baseadapter {      private arraylist<messages> m_almessages = null;      private messages getitem(int position) {          return m_almessages.get(position)     }     @override     public view getview(final int position, view convertview, viewgroup parent) {         if (m_almessages != null) {             if (getitem(position).ischat()) {                 final chat cchatitem = getitem(position);                 if (convertview == null) {                     //cat logic                     // ...                 }             } else {                 final notification nnotifitem = getitem(position);                   if (convertview == null) {                     //notification logic                     // ...                 }              }         }     } 

the message class (minimal)

public class message {         private long m_lid = 0l;         private boolean m_bischat = false;          public boolean ischat() { return m_bischat; }  } 

the notification , chat classes :

public class notification extends message { ... }  public class cat extends message { ... } 

i retrieving list of chats , list of notifications web-services when starting activity, have add them new list of messages in respective order (date), , instantiate m adapter list of message

is practice ?

just add boolean flag class object , in adapter, check flag , use 1 layout if chat, if flagged notification. no problem that

there tutorial here covers more or less trying different view layouts within listview

within adapter create 2 viewholders, 1 chat, 1 notification. then, in getview(), object creating view for, check boolean flag, instantiate correct holder , inflate view based upon flag , set view elements if there 1 class , listview show view set element in place.