How to transfer some data to another Fragment?

Question

How to transfer some data to another Fragment likewise it was done with extras for intents?

I try to answer this question @[here](http://stackoverflow.com/a/27626004/4249919). I hope t works. — ozhanli, Dec 23 '14 at 18:31

score 526 · Accepted Answer · edited Oct 12 '16 at 10:32

526

Use a Bundle. Here's an example:

Fragment fragment = new Fragment();
Bundle bundle = new Bundle();
bundle.putInt(key, value);
fragment.setArguments(bundle);

Bundle has put methods for lots of data types. See this

Then in your Fragment, retrieve the data (e.g. in onCreate() method) with:

Bundle bundle = this.getArguments();
if (bundle != null) {
        int myInt = bundle.getInt(key, defaultValue);
}

edited Oct 12 '16 at 10:32

madhan kumar

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answered Aug 22 '11 at 15:36

Pikaling

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Hi thanx for your answer but do we need to implement anything??like Serializable or Parcelable?? – Ankit Srivastava Aug 20 '13 at 20:25
No, you do not need to implement any classes. – Gene Aug 26 '14 at 21:17
2

Might want to add a check to see that bundle != Null before you attempt to get anything out of it? – Niels Mar 14 '16 at 15:53
And if you have an existing fragment in memory? – powder366 Nov 17 '16 at 18:43
this is code not working ,not redirecting activity to fragment with data – Venkatesh Mar 02 '17 at 11:17

score 48 · Answer 2 · edited May 07 '21 at 14:42

To extend the previous answer even more, like Ankit was saying, for complex objects you need to implement Serializable. For example, for the simple object:

public class MyClass implements Serializable {
    private static final long serialVersionUID = -2163051469151804394L;
    private int id;
    private String created;
}

In your FromFragment:

Bundle args = new Bundle();
args.putSerializable(TAG_MY_CLASS, myClass);
Fragment toFragment = new ToFragment();
toFragment.setArguments(args);
getFragmentManager()
    .beginTransaction()
    .replace(R.id.body, toFragment, TAG_TO_FRAGMENT)
    .addToBackStack(TAG_TO_FRAGMENT).commit();

in your ToFragment:

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {

    Bundle args = getArguments();
    MyClass myClass = (MyClass) args
        .getSerializable(TAG_MY_CLASS);

@Sameera I usually just put a string with my fragment class, i.e. if I have class MyFragmentIMGoingTo.java then my TAG_TO_FRAGMENT = "MyFragmentIMGoingTo"; — mike.tihonchik, Dec 11 '14 at 16:54
Better use Parcelable as google recommended it as more optimized serialization technique for android operating system. — Gem, Oct 09 '15 at 19:37

score 17 · Answer 3 · answered Apr 29 '13 at 11:42

17

getArguments() is returning null because "Its doesn't get anything"

Try this code to handle this situation

if(getArguments()!=null)
{
int myInt = getArguments().getInt(key, defaultValue);
}

answered Apr 29 '13 at 11:42

Sakthimuthiah

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Hi thanx for your answer but do we need to implement anything??like Serializable or Parcelable?? – Ankit Srivastava Aug 20 '13 at 20:25
are you sure?because i had to implement Serializable/ Parcelable when i was passing complex data between a fragment and an activity by using intent ...... – Ankit Srivastava Aug 21 '13 at 07:30
i tried with simple values only. No idea about Serializable or Parcelable sorry – Sakthimuthiah Aug 21 '13 at 07:43
1

It should be a comment not answer !! – Gem Oct 09 '15 at 19:38

score 14 · Answer 4 · edited Jun 21 '15 at 01:41

14

Complete code of passing data using fragment to fragment

Fragment fragment = new Fragment(); // replace your custom fragment class 
Bundle bundle = new Bundle();
FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
                bundle.putString("key","value"); // use as per your need
                fragment.setArguments(bundle);
                fragmentTransaction.addToBackStack(null);
                fragmentTransaction.replace(viewID,fragment);
                fragmentTransaction.commit();

In custom fragment class

Bundle mBundle = new Bundle();
mBundle = getArguments();
mBundle.getString(key);  // key must be same which was given in first fragment

edited Jun 21 '15 at 01:41

Tristan

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answered May 17 '15 at 09:41

Anand Savjani

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@Hoo : please specify your question what you want to ask – Anand Savjani Oct 07 '15 at 04:09
can you help me? https://stackoverflow.com/questions/32983033/pass-data-to-another-fragment-by-swipe-view-with-tab-android-studio-not-button – Hoo Oct 07 '15 at 04:13

score 6 · Answer 5 · answered Oct 30 '13 at 18:05

Just to extend previous answers - it could help someone. If your getArguments() returns null, put it to onCreate() method and not to constructor of your fragment:

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    int index = getArguments().getInt("index");
}

score 4 · Answer 6 · answered Sep 19 '21 at 06:24

If you are using kotlin then you can pass bundle as

val fragment = YourFragment()
val bundle = Bundle().apply {
    putInt("someInt", 5)
    putString("someString", "Hello")
}
fragment.arguments = bundle

And get these values in YourFragment's onCreate as

this.arguments?.let {
    val someInt    = it.getInt("someInt", someDefaultInt)
    val someString = it.getString("someString", someDefaultString)
}

Pesa · Answer 7 · 2020-10-19T07:48:54.340

2

If you are using graph for navigation between fragments you can do this: From fragment A:

    Bundle bundle = new Bundle();
    bundle.putSerializable(KEY, yourObject);
    Navigation.findNavController(view).navigate(R.id.fragment, bundle);

To fragment B:

    Bundle bundle = getArguments();
    object = (Object) bundle.getSerializable(KEY);

Of course your object must implement Serializable

edited Oct 19 '20 at 07:48

answered Jan 27 '20 at 08:12

Pesa

241
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The best and easy answer – Aadam Oct 16 '21 at 17:03

score 2 · Answer 8 · answered Jan 31 '20 at 08:51

2

This is how you use bundle:

Bundle b = new Bundle();
b.putInt("id", id);
Fragment frag= new Fragment();
frag.setArguments(b);

retrieve value from bundle:

 bundle = getArguments();
 if (bundle != null) {
    id = bundle.getInt("id");
 }

answered Jan 31 '20 at 08:51

Marium Jawed

391
4
9

score 1 · Answer 9 · answered Mar 08 '17 at 19:07

            First Fragment Sending String To Next Fragment
            public class MainActivity extends AppCompatActivity {
                    private Button Add;
                    private EditText edt;
                    FragmentManager fragmentManager;
                    FragClass1 fragClass1;


                    @Override
                    protected void onCreate(Bundle savedInstanceState) {
                        super.onCreate(savedInstanceState);
                        setContentView(R.layout.activity_main);
                        Add= (Button) findViewById(R.id.BtnNext);
                        edt= (EditText) findViewById(R.id.editText);

                        Add.setOnClickListener(new View.OnClickListener() {
                            @Override
                            public void onClick(View v) {
                                fragClass1=new FragClass1();
                                Bundle bundle=new Bundle();

                                fragmentManager=getSupportFragmentManager();
                                fragClass1.setArguments(bundle);
                                bundle.putString("hello",edt.getText().toString());
                                FragmentTransaction fragmentTransaction=fragmentManager.beginTransaction();
                                fragmentTransaction.add(R.id.activity_main,fragClass1,"");
                                fragmentTransaction.addToBackStack(null);
                                fragmentTransaction.commit();

                            }
                        });
                    }
                }
         Next Fragment to fetch the string.
            public class FragClass1 extends Fragment {
                  EditText showFrag1;


                    @Nullable
                    @Override
                    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {

                        View view=inflater.inflate(R.layout.lay_frag1,null);
                        showFrag1= (EditText) view.findViewById(R.id.edtText);
                        Bundle bundle=getArguments();
                        String a=getArguments().getString("hello");//Use This or The Below Commented Code
                        showFrag1.setText(a);
                        //showFrag1.setText(String.valueOf(bundle.getString("hello")));
                        return view;
                    }
                }
    I used Frame Layout easy to use.
    Don't Forget to Add Background color or else fragment will overlap.
This is for First Fragment.
    <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:id="@+id/activity_main"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:paddingBottom="@dimen/activity_vertical_margin"
        android:paddingLeft="@dimen/activity_horizontal_margin"
        android:paddingRight="@dimen/activity_horizontal_margin"
        android:paddingTop="@dimen/activity_vertical_margin"
        android:background="@color/colorPrimary"
        tools:context="com.example.sumedh.fragmentpractice1.MainActivity">

        <EditText
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/editText" />
        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:id="@+id/BtnNext"/>
    </FrameLayout>


Xml for Next Fragment.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
   android:background="@color/colorAccent"
    android:layout_height="match_parent">
    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/edtText"/>

</LinearLayout>

Explain your answer? code without any explanation will not do much help — Coder, Mar 08 '17 at 19:51
i have written code in a flow so its could be understood..... Passing data From Main Activity to FragClass1 with use of bundle. — Sumedh Ulhe, Mar 10 '17 at 19:46

WO King · Answer 10 · 2019-05-29T00:44:40.843

From Activity Class:

Send the data using bundle arguments to the fragment and load the fragment

   Fragment fragment = new myFragment();
   Bundle bundle = new Bundle();
   bundle.putString("pName", personName);
   bundle.putString("pEmail", personEmail);
   bundle.putString("pId", personId);
   fragment.setArguments(bundle);

   getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container,
                    fragment).commit();

From myFragment Class:

Get the arguments from the bundle and set them to xml

    Bundle arguments = getArguments();
    String personName = arguments.getString("pName");
    String personEmail = arguments.getString("pEmail");
    String personId = arguments.getString("pId");

    nameTV = v.findViewById(R.id.name);
    emailTV = v.findViewById(R.id.email);
    idTV = v.findViewById(R.id.id);

    nameTV.setText("Name: "+ personName);
    emailTV.setText("Email: "+ personEmail);
    idTV.setText("ID: "+ personId);

Please read the question again, It is about fragment to fragment — Amin Pinjari, Dec 01 '19 at 07:34

score 0 · Answer 11 · answered Feb 21 '17 at 12:50

Your input fragment

public class SecondFragment extends Fragment  {


    EditText etext;
    Button btn;
    String etex;
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.secondfragment, container, false);
        etext = (EditText) v.findViewById(R.id.editText4);
        btn = (Button) v.findViewById(R.id.button);
        btn.setOnClickListener(mClickListener);
        return v;
    }

    View.OnClickListener mClickListener = new View.OnClickListener() {
        @Override
        public void onClick(View v) {


            etex = etext.getText().toString();
            FragmentTransaction transection = getFragmentManager().beginTransaction();
            Viewfragment mfragment = new Viewfragment();
            //using Bundle to send data
            Bundle bundle = new Bundle();
            bundle.putString("textbox", etex);
            mfragment.setArguments(bundle); //data being send to SecondFragment
            transection.replace(R.id.frame, mfragment);
            transection.isAddToBackStackAllowed();
            transection.addToBackStack(null);
            transection.commit();

        }
    };



}

your view fragment

public class Viewfragment extends Fragment {

    TextView txtv;
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.viewfrag,container,false);
        txtv = (TextView)  v.findViewById(R.id.textView4);
        Bundle bundle=getArguments();
        txtv.setText(String.valueOf(bundle.getString("textbox")));
        return v;
    }


}

How to transfer some data to another Fragment?

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