How do I save data in my current activity so that i can access it next time on same activity Android?

Question

i have a listview in which i have some list of data i am sending it to other activity on click

i am sending data with intent

Intent i = new Intent(MainActivity.this,AppDiscription.class);
                    i.putExtra("NAME", s);
                    i.putExtra("AMT", Appname);
                    i.putExtra("COUNT", cnvert);
                    i.putExtra("SELECTEDID", selectedFromList);
                    startActivity(i);

on receiving activity:

if (extras != null) {

            Appname = extras.getString("NAME");
            total = extras.getString("AMT");
            count = extras.getString("COUNT");
            selected = extras.getString("SELECTEDID");
}

now i have to save "selected" into a variable on this activity so that i can compare it with new "selected" data which will came with next intent when i will click on listview.

I'd use sharedpreferences: http://stackoverflow.com/a/3624358/508126 — kjurkovic, Dec 12 '12 at 12:14

score 1 · Answer 1 · answered Dec 12 '12 at 12:25

1

Use an ArrayList and add all the selected strings as they come. And compare this way:

list.get(last) == list.get(last-1);

but if you are interested in comparing only the previous and the newly created value.

use sharedprefrence

answered Dec 12 '12 at 12:25

Archie.bpgc

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score 0 · Answer 2 · answered Dec 12 '12 at 12:17

0

How do you get your "extras" object? It is a bundle from the activity's intent, right?

 final Bundle extras = this.getIntent().getExtras();

answered Dec 12 '12 at 12:17

Marius M

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Bundle extras = getIntent().getExtras(); – Nikhil Dec 12 '12 at 12:20
what is the problem more precisely? the extras object is null or simply empty? – Marius M Dec 12 '12 at 12:22
but i want to store it as a variable for this activity. – Nikhil Dec 12 '12 at 12:22
no they are not empty i am getting data but want to store it on this activity.so that i can compare it with next intent data – Nikhil Dec 12 '12 at 12:24
aha, sorry, i misunderstood, i thought you had a problem in passing the data, in this case you could use a queue, add the item, compare,poll... – Marius M Dec 12 '12 at 12:32

score 0 · Accepted Answer · answered Dec 12 '12 at 12:30

//inside onCreate()

SharedPreferences  preferences = getPreferences(MODE_PRIVATE); 
SharedPreferences.Editor editor = preferences.edit();

//reading last saved selectedID

lastSavedSelected = preferences.getString("selectedID", "defaultID");

//saving new selectedID

editor.putString("selectedID", selected); 
editor.commit();

How do I save data in my current activity so that i can access it next time on same activity Android?

3 Answers3