Dynamic change the content of Spinner

We can change the List programmatically, to change the content of the Spinner, then call notifyDataSetChanged() of the ArrayAdapter to update the Spinner.

It's a example modify from the last post. There are two Spinner. When the Move button clicked, the current item of Spinner1 will be moved to Spinner2.

package com.AndroidListSpinner;
import java.util.ArrayList;
import java.util.List;
 
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.Spinner;
 
public class AndroidListSpinnerActivity extends Activity {
  
 Button btnMove;
 Spinner MySpinner1, MySpinner2;
 List myList1, myList2;
 private ArrayAdapter myAdapter1, myAdapter2;
  
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        btnMove = (Button)findViewById(R.id.move);
        MySpinner1 = (Spinner)findViewById(R.id.myspinner1);
        MySpinner2 = (Spinner)findViewById(R.id.myspinner2);
         
        initList();
        myAdapter1 = new ArrayAdapter(this, android.R.layout.simple_spinner_item, myList1);
        myAdapter1.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        MySpinner1.setAdapter(myAdapter1);
         
        myAdapter2 = new ArrayAdapter(this, android.R.layout.simple_spinner_item, myList2);
        myAdapter2.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        MySpinner2.setAdapter(myAdapter2);
 
        btnMove.setOnClickListener(MoveOnClickListener);
    }
     
    Button.OnClickListener MoveOnClickListener
    = new Button.OnClickListener(){
 
  @Override
  public void onClick(View arg0) {
   // TODO Auto-generated method stub
   int pos = MySpinner1.getSelectedItemPosition();
    
   if(pos != AdapterView.INVALID_POSITION){
    myList2.add(myList1.get(pos));
    myList1.remove(pos);
    myAdapter1.notifyDataSetChanged();
    myAdapter2.notifyDataSetChanged();
   }
  }};
     
    void initList(){
     myList1 = new ArrayList();
     myList1.add("Sunday");
     myList1.add("Monday");
     myList1.add("Tuesday");
     myList1.add("Wednesday");
     myList1.add("Thursday");
     myList1.add("Friday");
     myList1.add("Saturday");
      
     myList2 = new ArrayList();
    }
}

Xml Code

You can download the source code Spinner Dynamic Move Content
Cheers Guys!!!!!!!