How to get the data from android?

Question

I am storing the string values in arraylist in Select.java page. Now I need to get those string values into other page i.e review.java page. How to do that? Please help me regarding this?

Thanks in Advance

Answer 1

Either make this arraylist as public static or use Intent.putStringArrayListExtra(); and pass it to your review.java (If both java class are activity).

something like,

In Select.java

        Intent intent = new Intent(Select.this, review.class);
        intent.putStringArrayListExtra("stock_list", stock_list);
        startActivity(intent);

and In review.java

Intent i = getIntent();  
stock_list = i.getStringArrayListExtra("stock_list");

Here stock_list is a String ArrayList...

You can also use Intent.putExtra("keyName", "somevalue"); for passing ArrayList..

Answer 2

You can use Extras to pass data to an activity when you start it. An example is:

Intent intent = new Intent(context, review.class);
intent.putExtra("YOUR_DATA_KEY", arrayListVar);
startActivity(intent);

check out the "Extras" section of the docs for more info. This is the preferred method of sharing information across activities (you shouldn't use public variables since that would introduce a dependency between your two activities when all they really need to depend on is data).

Answer 3

Declare this in your Select.java

static String[] x=new String[]{"a","b","c"}; globally. Making them static can get you access in other class.

in review.java create object static Select dd and static Select[] all;

dd = new Select("a","n","m"); all[i]=dd;