Not able to pass string value from one fragment to another

Question

I know there are so many qustions regarding this , but none of them are solving my problem I want to pass a string variable from one fragment to other, here is the code I did. but I am getting error (I will show the error)

from first fragment I did

Desc_1 ldf = new Desc_1 ();
Bundle args = new Bundle();
args.putString("YourKey", "YourValue");
ldf.setArguments(args);
getFragmentManager().beginTransaction().add(R.id.frame, ldf).commit();

and incoming second fragment I did like

public class Desc_1 extends Fragment {

    public Desc_1() {
        // Required empty public constructor
    }

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

        View rootview=inflater.inflate(R.layout.fragment_desc_1,container,false);

        String value = getArguments().getString("YourKey");

        Toast.makeText(getActivity(), value,
                Toast.LENGTH_LONG).show();

        return rootview;

    }
}

I am getting error like

07-27 20:31:06.386 26816-26816/com.example.jaison.newsclient E/AndroidRuntime: FATAL EXCEPTION: main
   Process: com.example.jaison.newsclient, PID: 26816
   java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.os.Bundle.getString(java.lang.String)' on a null object reference
       at layout.Desc_1.onCreateView(Desc_1.java:34)
       at android.support.v4.app.Fragment.performCreateView(Fragment.java:2239)
       at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1332)
       at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1574)
       at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1641)
       at android.support.v4.app.BackStackRecord.executeOps(BackStackRecord.java:794)
       at android.support.v4.app.FragmentManagerImpl.executeOps(FragmentManager.java:2415)
       at android.support.v4.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2200)
       at android.support.v4.app.FragmentManagerImpl.optimizeAndExecuteOps(FragmentManager.java:2153)
       at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:2063)
       at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:725)
       at android.os.Handler.handleCallback(Handler.java:815)
       at android.os.Handler.dispatchMessage(Handler.java:104)
       at android.os.Looper.loop(Looper.java:207)
       at android.app.ActivityThread.main(ActivityThread.java:5769)
       at java.lang.reflect.Method.invoke(Native Method)
       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:861)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:751)

score 1 · Answer 1 · edited Jul 28 '17 at 00:20

1

Just check if getArguments() is not null inside your fragment, and then inside the curly braces add your code

Example:

Bundle bundle_arguments = getArguments();
if(bundle_arguments != null) {
    // your code 
}

edited Jul 28 '17 at 00:20

Vishal Yadav

3,642
3
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answered Jul 27 '17 at 15:15

Nenco

241
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13

can u post the answer – Jaison Joseph Jul 27 '17 at 16:02
you gotta know how to make something based on what someone told you. giving you a complete solution doesn't help you in the long term :) – Nenco Jul 27 '17 at 19:07

score 1 · Accepted Answer · answered Jul 27 '17 at 15:16

1

try this :

Bundle bundle = getArguments();
if(bundle != null)
    String value = bundle.getString("YourKey");

answered Jul 27 '17 at 15:16

Oussema Aroua

5,225
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can u explain why it is happening ? – Jaison Joseph Jul 27 '17 at 16:02
get the `Bundle` you sent and test id it's empty if not get the data – Oussema Aroua Jul 27 '17 at 16:03

score 0 · Answer 3 · answered Jul 27 '17 at 15:17

0

Please check this answer for passing values between fragments

https://stackoverflow.com/a/27626004/5065318

answered Jul 27 '17 at 15:17

vivek verma

1,716
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You should flag the question as a duplicate if you think the question has been asked and answered before. – Robin Topper Jul 27 '17 at 15:31

Not able to pass string value from one fragment to another

3 Answers3