How to pass value from Activity to Fragment?

Question

Currently this is my Activity Class

Fragment fragment = null;
        switch (position) {
        case 0:
            fragment = new FragmentTripPlan();
            break;
        case 1:
            fragment = new FragmentCulturalHistorical();
            Toast.makeText(this, "cultural", Toast.LENGTH_SHORT).show();
            break;
        case 2:
            fragment = new FragmentLeisureRecreational();
            Toast.makeText(this, "Leisure", Toast.LENGTH_SHORT).show();

            break;
        case 3:
            fragment = new FragmentLipaChurches();
            break;
        case 4:
            fragment = new FragmentNaturalSite();
            Bundle bundle = new Bundle();
            bundle.putString("edttext", "From Activity");
            FragmentNaturalSite fragobj = new FragmentNaturalSite();
            fragobj.setArguments(bundle);
            break;
        case 5:
            fragment = new FragmentCreateReport();
            break;
        case 6:
            fragment = new FragmentAbout();
            break;

        default:
            break;

and Here is my Fragment Class

public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.fragment_lipa_churches, container, false);   
    // ******* vvvvvv
    Bundle bundle = getArguments();
    String strtext = bundle .getString("edttext");
return rootView;
}

and i got this error in Log Trace

01-10 13:51:43.020: E/AndroidRuntime(13708): FATAL EXCEPTION: main
01-10 13:51:43.020: E/AndroidRuntime(13708): java.lang.NullPointerException
01-10 13:51:43.020: E/AndroidRuntime(13708):    at com.c4a.itravellipaph.FragmentLipaChurches.onCreateView(FragmentLipaChurches.java:26)
01-10 13:51:43.020: E/AndroidRuntime(13708):    at android.app.Fragment.performCreateView(Fragment.java:1695)
01-10 13:51:43.020: E/AndroidRuntime(13708):    at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:903)
01-10 13:51:43.020: E/AndroidRuntime(13708):    at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1075)
01-10 13:51:43.020: E/AndroidRuntime(13708):    at android.app.BackStackRecord.run(BackStackRecord.java:682)
01-10 13:51:43.020: E/AndroidRuntime(13708):    at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1455)
01-10 13:51:43.020: E/AndroidRuntime(13708):    at android.app.FragmentManagerImpl$1.run(FragmentManager.java:441)
01-10 13:51:43.020: E/AndroidRuntime(13708):    at android.os.Handler.handleCallback(Handler.java:725)
01-10 13:51:43.020: E/AndroidRuntime(13708):    at android.os.Handler.dispatchMessage(Handler.java:92)
01-10 13:51:43.020: E/AndroidRuntime(13708):    at android.os.Looper.loop(Looper.java:137)
01-10 13:51:43.020: E/AndroidRuntime(13708):    at android.app.ActivityThread.main(ActivityThread.java:5279)
01-10 13:51:43.020: E/AndroidRuntime(13708):    at java.lang.reflect.Method.invokeNative(Native Method)
01-10 13:51:43.020: E/AndroidRuntime(13708):    at java.lang.reflect.Method.invoke(Method.java:511)
01-10 13:51:43.020: E/AndroidRuntime(13708):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
01-10 13:51:43.020: E/AndroidRuntime(13708):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
01-10 13:51:43.020: E/AndroidRuntime(13708):    at dalvik.system.NativeStart.main(Native Method)

Questions.

How can I fix this?
How to pass values or data from activity to fragment?
Is there other way to pass value?

check this link i think helpful(Passing string in Fragment) http://stackoverflow.com/questions/17875804/transfer-data-from-fragment-activity-to-fragment — Sanket990, Jan 10 '14 at 06:16

gunar · Accepted Answer · 2014-01-10T06:09:50.483

1

I don't know who is fragobj but at case 4 I think you have a typo, instead of:

FragmentLipaChurches fragobj = new FragmentLipaChurches();
fragobj.setArguments(bundle);

you should have:

fragment.setArguments(bundle);

At least FragmentLipaChurches should be handled differently since you're creating there an instance of FragmentNaturalSite but you're setting the arguments to FragmentLipaChurches. So FragmentNaturalSite doesn't have the arguments set, that's why the NPE.

edited Jan 10 '14 at 06:09

answered Jan 10 '14 at 06:02

gunar

14,660
7
56
87

so do i still need to include this in my code? or should i remove it? **FragmentLipaChurches fragobj = new FragmentLipaChurches();** – AndroidNewbie Jan 10 '14 at 06:12
replace **FragmentNaturalSite fragobj = new FragmentNaturalSite();fragobj.setArguments(bundle);** with **fragment.setArguments(bundle);** – gunar Jan 10 '14 at 06:18

score 1 · Answer 2 · edited Jan 10 '14 at 06:25

1

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
           Bundle b = getActivity().getIntent().getExtras();
           String strtext = getArguments().getString("edttext");  
           View view = inflater.inflate(R.layout.categoryfragment, container, false);
           return view;
 }

edited Jan 10 '14 at 06:25

keshav

3,235
1
16
22

answered Jan 10 '14 at 06:12

poojagupta

982
2
12
26

score 0 · Answer 3 · answered Jan 10 '14 at 06:00

0

to pass value from activity use this

Bundle bun = new Bundle();
bun.putString("pathimage", path);
fragment_setting.setArguments(bun);

to get the vlue use this in your onCreateView in fragment

Bundle b = getArguments();
String path = b.getString("pathimage");

answered Jan 10 '14 at 06:00

Fahriyal Afif

560
3
11

I still get the same log trace error. – AndroidNewbie Jan 10 '14 at 06:06

How to pass value from Activity to Fragment?

3 Answers3