How to pass custom object arraylist from activity to fragment with instance

Question

I am using viewpager and creating fragments and i want to pass the arraylist. So i have tried the below things:

MainActivity:

 private ArrayList<customers> mArrayList = null;

  ViewPagerAdapter adapter = new ViewPagerAdapter(MainActivity.this.getSupportFragmentManager());

  adapter.addFrag(NewCustomer.newInstance(mArrayList ), "NewCustomer");

Now in fragment class i am creating instance:

 public static final ArrayList<customers> data = new ArrayList<customers>();

 public static final NewCustomer newInstance(ArrayList<customers> mArrayList) {

        NewCustomer f = new NewCustomer();
        Bundle bdl = new Bundle(1);
        bdl.putParcelableArrayList(data, mArrayList);
        f.setArguments(bdl);
        return f;
    }

But this is not working. It is showing error on bdl.putParcelableArrayList I want to get arraylist and store into the local arraylist of that class.

How can i get the arraylist with my custom object ?

score 4 · Answer 1 · answered Dec 29 '16 at 09:27

4

The first parameter you are passing is wrong. Check the definition:

putParcelableArrayList(String key, ArrayList<? extends Parcelable> value)

Define the key as following in your fragment:

public static final String KEY;

To get the arraylist as local variable in your fragment use following code:

@Override
public void onStart() {
    super.onStart();
    Bundle arguments = getArguments();
    ArrayList<customers> customer_list = arguments.getParcelable(KEY);
}

answered Dec 29 '16 at 09:27

Hristo Stoyanov

1,960
1
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That's well written. You could add the [source](https://developer.android.com/reference/android/os/Bundle.html) and also show how to call putParcelable with the KEY (that you need to initialize since this is a constant) – AxelH Dec 29 '16 at 12:22

Mayur Raval · Accepted Answer · 2016-12-29T12:13:47.703

0

Can you try ?

public static final NewCustomer newInstance(ArrayList<customers> mArrayList) {

        NewCustomer f = new NewCustomer();
        Bundle bdl = new Bundle(1);
        this.data = mArrayList; // assign its Value
        bdl.putParcelableArrayList(data, mArrayList);
        f.setArguments(bdl);
        return f;
    }

this.data = mArrayList will assign value to the current member variable of fragment. Now it can we be accessed in current fragment.

edited Dec 29 '16 at 12:13

answered Dec 29 '16 at 09:07

Mayur Raval

3,250
6
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1

You should explain why the code you provide is working and what is it doing. If you provide simply a code, this won't help the OP and the following users that could end up with a similar question. – AxelH Dec 29 '16 at 12:10
Don't apologize ;) But how are you explaining the usage of `this` in a static context ? I don't really get that part. Or the wrong usage of the method ;) – AxelH Dec 29 '16 at 12:15

score 0 · Answer 3 · answered Dec 29 '16 at 09:08

0

please check that your model class "NewCustomer" implements Parcelable.

answered Dec 29 '16 at 09:08

Saurabh Bhandari

340
3
11

How to pass custom object arraylist from activity to fragment with instance

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