How to pass array list between activities

Question

I have this array list and i parsing list item from json like this ,

    List<String> imageUrls;

    imageUrls = new ArrayList<>();

    JSONArray imageArray = response.getJSONObject(feedKey).getJSONArray(entryKey).getJSONObject(i).getJSONArray(imageKey);

    for (int j = 0; j < imageArray.length(); j++) {
         String imageList = imageArray.getJSONObject(j).getString(labelKey).toString();
         imageUrls.add(imageList);
     }
    appShowModule.setAllimage(imageUrls);

then i try to do this in another activity ,

                intent.putStringArrayListExtra("list", appShowModule.getAllimage());

but "appShowModule.getAllimage()" is error ! and how i can received it ?

Possible duplicate of [How to pass ArrayList using putStringArrayListExtra()](http://stackoverflow.com/questions/4030115/how-to-pass-arraylist-using-putstringarraylistextra) — Mike M., Sep 18 '16 at 09:54
You always need to be specific about your errors. What does `getAllimage()` return? If it returns a generic `List`, you'll need to cast it to `ArrayList` to use it there - `(ArrayList) appShowModule.getAllimage()`. The linked duplicate has examples of how to retrieve it in the next `Activity`. — Mike M., Sep 18 '16 at 10:30
in the module i have this private List Allimage = new ArrayList(); public List getAllimage() { return Allimage;} public void setAllimage(List allimage) { Allimage = allimage; } — Mr.Moayed, Sep 18 '16 at 10:32

score 1 · Answer 1 · edited Jun 20 '20 at 09:12

1

You should implement Parcelable in your class.

Check this best link for easy understanding.

Thanks

edited Jun 20 '20 at 09:12

Community

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1

answered Sep 18 '16 at 09:43

Androider

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i try it its not working i wont another solution thank you – Mr.Moayed Sep 18 '16 at 09:51
yes, i also face some problem in starting, you can use the another link i specified. But take some time for it. If problem persists then go for serialization or direct access by making it static – Androider Sep 18 '16 at 09:54
Do you really need to implemet Parcelable in this case? As it is a List of plain String @Androider – Mithun Sarker Shuvro Sep 18 '16 at 10:01

score 0 · Answer 2 · answered Sep 18 '16 at 09:44

0

You can use this method in Intent:

public Intent putExtra(String name, CharSequence[] value)

answered Sep 18 '16 at 09:44

L. Swifter

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then ? what do in the method ? i wont to passing this array to more than one activity ! how can do this ? – Mr.Moayed Sep 18 '16 at 09:51

score 0 · Answer 3 · answered Sep 18 '16 at 09:59

0

change List imageUrls to ArrayList imageUrls and intent.putStringArrayListExtra("key",imageUrls);

answered Sep 18 '16 at 09:59

D.J

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ok i do it but this cannot be applied intent.putStringArrayListExtra("key",appShowModule.getAllimage()); – Mr.Moayed Sep 18 '16 at 10:03
please tell me appShowModule.getAllimage() what it will return. – D.J Sep 18 '16 at 13:47

score 0 · Answer 4 · answered Sep 18 '16 at 10:04

Send your list like this

    Intent i = new Intent(this, YourDesiredActiity.class);
    i.putStringArrayListExtra("arrayListToSend",imageUrls);
    startActivity(i);

And then in your desired activity , receive the list like this

   ArrayList<String> urlList = new ArrayList<String>();
    Bundle extras = getIntent().getExtras();
    if (extras != null) {
        urlList.addAll(extras.getStringArrayList("arrayListToSend"));
    }

Then you can get your desired arrayList in "urlList"

Declare you imageUrls variable like this ArrayList urlList = new ArrayList(); and then follow my answer hope it will work — Mithun Sarker Shuvro, Sep 18 '16 at 10:38

score 0 · Accepted Answer · answered Sep 18 '16 at 10:05

Add Your Array list to intent from which you are calling another activity

 intent.putStringArrayListExtra("list", yourarraylist);
 startActivity(intent);

To get the array list in activity.

ArrayList list= new ArrayList();
list=  getIntent().getStringArrayListExtra("list");

Hope this will help you.

How to pass array list between activities

5 Answers5