How to get data value of ArrayList to another activity

Question

Hey I have an arraylist in activity1.class I want to get data from that array to show the data episodeList.size() in activity2.class here my list code

public class EpisodeAdapter  extends  RecyclerView.Adapter<EpisodeAdapter.EpisodeHolder>{
    private List<Episode> episodeList;
    public EpisodeAdapter(List<Episode> episodeList) {
        this.episodeList = episodeList;
    }
    @Override
    public EpisodeHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_episode , null);
        EpisodeAdapter.EpisodeHolder mh = new EpisodeAdapter.EpisodeHolder(v);
        return mh;
    }

public int getItemCount() {
        return episodeList.size();
    }

You can send that list with intent or you can store it in local database or strings.xml to access it from anywhere — Karan Mehta, Feb 11 '20 at 06:24
send ArrayList with Parseable and then send it with bundle.putParceableArrayList(key, list). — Deepak Ror, Feb 11 '20 at 06:26
Does this answer your question? [How to pass ArrayList from one activity to another?](https://stackoverflow.com/questions/21250339/how-to-pass-arraylistcustomeobject-from-one-activity-to-another) — Abhinav Suman, Feb 11 '20 at 06:37

score 0 · Answer 1 · answered Feb 11 '20 at 06:31

0

Intent intent = new Intent(this, className);
            intent.putParcelableArrayListExtra("episodeList", episodeList);
            startActivity(intent);

and you can get it by

ArrayList<Episodes> list=getIntent.getparcelableArrayList("episodeList")

and don't forget to make the model class to parcelable

answered Feb 11 '20 at 06:31

gowtham6672

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`and don't forget to make the model class to parcelable` please add this part to your question to make it complete – a_local_nobody Feb 11 '20 at 06:31
just implement like this...class Episode implement Parcelable – gowtham6672 Feb 11 '20 at 06:37

score 0 · Answer 2 · answered Feb 11 '20 at 06:33

You can use intents to pass values from one activity to another activity like this: In your current activity from where you want to pass ArrayList:

Intent intent = new Intent(CurrentActivity.this, TargetActivity.class);
intent.putStringArrayListExtra("key", your_array_list);
startActivity();

And in your Activity where you want to receive the values:

Intent intent = getIntent();  
ArrayList arrayList= intent.getStringArrayListExtra("key");

score 0 · Answer 3 · answered Feb 11 '20 at 07:14

I also had the same problem on my project. I just used SharedPreferences. It's like a local file in your project, but you cannot see it. You simply put the values inside and retrieve them in your 2nd Activity.

For more information: https://developer.android.com/training/data-storage/shared-preferences

score 0 · Answer 4 · answered Feb 11 '20 at 11:32

Implement Parcelable in your ArrayList model.

Intent intent = new Intent(context, ServiceDetailActivity.class);
intent.putParcelableArrayListExtra("key", (ArrayList<? extends Parcelable>) arrayList);
startActivity(intent);

And get list in another activity

arrayList = getIntent().getParcelableArrayListExtra("key");

How to get data value of ArrayList to another activity

4 Answers4