Can I call Multiple adapter classes in android ListView?

问题

XML code

<ListView
   android:id="@+id/listView1"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:fastScrollEnabled="true" 
   android:fastScrollAlwaysVisible="true"
   android:scrollbars="vertical"
   android:fadingEdge="vertical"
   android:cacheColorHint="#00000000">
 </ListView>

My .java file

public class TestListView extends Activity{

       private DatabaseConection db;
       Button btn;         
       private List<Customer> custList = new ArrayList<Customer>();
       private CustomListenerAdapter custListAdaptor;    
       private ListView list;

       /**
        * Called when the activity is first created.
       */
       @Override
       public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);  
            setContentView(R.layout.test_listview);
            // Connection object for Login 
            db= new DatabaseConection(this);

            btn = (Button)findViewById(R.id.button1);
            btn.setOnClickListener(new OnClickListener() {                      
                @SuppressWarnings("deprecation")
                public void onClick(View v) {   
                    createListViewDialog(btn);

                } 
            });

            try{
                list = (ListView) findViewById(R.id.listView1);                
                // populate the store list
                custList = db.getAllCustomers();                   
                // create an adaptor with the store list
                custListAdaptor = new CustomListenerAdapter(this,custList);                
                // assign the listview an adaptor
                 list.setAdapter(custListAdaptor);                

            }catch(Exception e){
               e.getStackTrace();
            }

        }



           // on button click i called dialog wich contains List (sorted)
        public void createListViewDialog(final Button btnId) {      
            AlertDialog levelDialog = null;     
            // Creating and Building the Dialog 
            AlertDialog.Builder builder = new AlertDialog.Builder(this); 

            final ArrayAdapter<Customer> ad = new ArrayAdapter<Customer>          (this,android.R.layout.simple_list_item_1,custList.toArray(new Customer[custList.size()]));

            builder.setSingleChoiceItems(ad, -1, new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int item) {                 
                    btnId.setText(ad.getItem(item).toString());         
                }
            });

             levelDialog = builder.create();
             levelDialog.show();      
        }
}

In the above code i have used Alert Dialog which shows List of customers but i also want to call CustomListenerAdapter in same dialogbox to show alphabetical indexer for fast scroll can i call 2 adapter classes on "CustList"
if not then please give me other options to show alphabetical indexer for list view shown in dialog box (popup)

(here you can see idea for it https://github.com/andraskindler/quickscroll ... want to work for list view dialog box)

回答1:

Yes you can use Multiple Adapter for ListView if,

If you are not populating your ListView with both Adapters at the same time.
If you are populating your ListView alternatively with the Adapter then its fine.
If one Adapter is not affecting the other as only one Adapter will be in effect at a time.

I think in your case you are showing both ListView at the same Activity so its better to use a seperate Adapter

来源：https://stackoverflow.com/questions/20394267/can-i-call-multiple-adapter-classes-in-android-listview

标签

java

android

listview

dialog