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);

Changwei Yao · Accepted Answer · 2012-05-07 05:52:12Z

2

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

answered May 7, 2012 at 5:52

Changwei Yao

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Housefly · Accepted Answer · 2012-05-07 05:54:28Z

0

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

Activity1.cutomers

answered May 7, 2012 at 5:54

Housefly

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4 Comments

MKJParekh Over a year ago

read above two answer..that will be helpful..Dont use static cause that's not reliable,creates memory leaks..also see stackoverflow.com/questions/2475978/…

Housefly Over a year ago

hmm...yeah, otherwise its too obvious :P

MKJParekh Over a year ago

yes it it obvious :)..that developer use it..but going through documentation and good blogs..you will find that Static can make how much trouble for you..

user1105975 Over a year ago

hi,sory.in Avtivity2 i use Activity1.customers=customers1; but in customers1 null value is there.

Andras Balázs Lajtha · Accepted Answer · 2012-05-07 05:57:15Z

0

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

In Activity2.class:

Activity1.customers;

answered May 7, 2012 at 5:57

Andras Balázs Lajtha

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2 Comments

user1105975 Over a year ago

sory.but Activity1.customers=customers1; i use like this,but in customers1 null value is there

Andras Balázs Lajtha Over a year ago

Sorry but that doesn't make much sense.

Khan · Accepted Answer · 2012-05-07 06:18:21Z

0

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");  
    }

answered May 7, 2012 at 6:18

Khan

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