android - how to pass stringarraylist values from one class to another class in android

Question

hi i would like to send string arraylist values from one class another class.i tried using bundle concept but in second class in arraylist showing null value.plaese any one suggest me wherre did mistake..

  Activity1.class:
 public static ArrayList<String> customers = new ArrayList<String>();
        customers.add("radha");
        customers.add("aswini");
           Intent i=new Intent(Activity1 .this,Activity2.class);
         i.putExtra("customers1", customers);
        Log.i("arrayvalues1",""+ customers);
        startActivity(i);

     Activity2.class:
     String[] mystringArray = getIntent().getStringArrayExtra("customers1");
    Log.i("arrayvalues2",""+ mystringArray);

Answer 1

ArrayList<String> mystringArray = getintent().getStringArrayListExtra("customers1");

Answer 2

when the arraylist is public static, you can directly access it using classname.arraylist na.

Activity1.cutomers

Answer 3

If you create a public static variable, you can access it in a static way:

In Activity2.class:

Activity1.customers;

Answer 4

For Activity 1:

 ArrayList<String> Customers = new ArrayList<String>();
 Intent i=new Intent(Activity1 .this,Activity2.class);
 i.putStringArrayListExtra("customers1",(ArrayList<String>) Customers);         
 startActivity(i);

For Activity 2:

 ArrayList<String> Customers = new ArrayList<String>();
 Bundle extra=getIntent().getExtras();
    if(extra!=null){
        Customers =extra.getStringArrayList("customers1");  
    }