extends BaseAdapter results are overwrite previous ArrayList Items

Question

i have a DateApapter class like this..

 public class DateAdapter extends BaseAdapter
    { 
    ...
    }

i call this DateApapter in 12 different places from my "mainActivity" by using constructor and store this result in a DateApapter object "mDefaultAdapter " like this..

mDefaultAdapter = new DateAdapter(this,days,sysDate,disablePastDays, selectedDateTypeDf);

and stored this various results of mDefaultAdapter in ArrayList like this..

ArrayList<DateAdapter> mDefaultAdapterList = new ArrayList<DateAdapter>();
mDefaultAdapterList.add(mDefaultAdapter);

now coming to the problem,

In my 1st call DateAdapter constructor , it returns January month details and I add this result(January) to ArrayList its works fine. Now the ArrayList has one Item, that is January details.
but when i call 2nd result(February) to arrayList its overwrite 1st result also. Now the ArrayList has two Items, both of the items are February details.
That means Last result of DateAdapter is filled the whole ArrayList. Finally i got December details only from ArrayList.

Why DateAdapter results are overwrite in previous ArrayList Items? I am not using any Static variables or methods in whole program. Please help me to fix this problem. Thanks..

Why would you need 12 adapters in a single Activity? What are you trying to do? — Benito Bertoli, Jan 24 '13 at 08:26
@Benito i want to store 12 months details for ViewPager Fragments. — bCliks, Jan 24 '13 at 08:43

score 1 · Answer 1 · answered Jan 24 '13 at 08:56

I'm not really sure what's happening with your adapter. Maybe you're using the same ArrayList object with all the adapters.

But I think you should reconsider your approach.

Here's what I would do.

1- Store the calendar events in an SQLite database.

2- In your FragmentPagerAdapter, pass the position to your Calendar Fragment.

3- In your Calendar Fragment, retrieve the position ( 0 : January - 11 : December) and query your database to retrieve the events.

Thanks for your suggestion. I'll use this concept in my next project. — bCliks, Jan 28 '13 at 12:37

score 0 · Accepted Answer · answered Mar 12 '13 at 05:05

0

It was my mistake.. The problem is Illegal object reference overwrite my previous ArrayList Items. I saved myself by making a separate object for Date Adapter.

answered Mar 12 '13 at 05:05

bCliks

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extends BaseAdapter results are overwrite previous ArrayList Items

2 Answers2