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PONull pointer exception when passing data from activity to fragment
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  1. PONull pointer exception when passing data from activity to fragment
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    copied!<p>I am trying to pass data between FragmentActivity and Fragment.</p> <p>In Fragment Activity OnCreate method , where pid value is sent from another activity to this fragment activity and i am passing this pid value to a fragment :</p> <pre><code>Intent i = getIntent(); Bundle extras = i.getExtras(); pid = extras.getString("TAG_PATIENT_ID"); System.out.println("Pid in prescact"+pid); // Bundle bundle = new Bundle(); /* bundle.putString("TAG_PATIENT_ID",pid); Intent m = new Intent(PrescAct.this,DocPresc1.class); m.putExtras(bundle);*/ //Passing pid value to the list fragment Bundle b = new Bundle(); b.putString("TAG_PATIENT_ID",pid); Fragment f = new DocPresc1(); f.setArguments(b); </code></pre> <p>While retrieving the value from this fragmentActivity into a fragment i am getting null pointer exception. In OnCreateView method of fragment class :</p> <pre><code> Bundle b = getArguments(); pid = b.getString("TAG_PATIENT_ID"); System.out.println("Docpresc"+pid); </code></pre> <p>Here is the stack Trace :</p> <pre><code>06-20 12:44:34.767: E/AndroidRuntime(9394): FATAL EXCEPTION: main 06-20 12:44:34.767: E/AndroidRuntime(9394): java.lang.NullPointerException 06-20 12:44:34.767: E/AndroidRuntime(9394): at com.example.actionbar.DocPresc1.onCreateView(DocPresc1.java:104) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.support.v4.app.Fragment.performCreateView(Fragment.java:1460) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:911) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1088) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1444) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:461) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:141) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.support.v4.view.ViewPager.populate(ViewPager.java:1011) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.support.v4.view.ViewPager.populate(ViewPager.java:880) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1374) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.view.View.measure(View.java:15479) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:617) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:399) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.view.View.measure(View.java:15479) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4828) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.view.View.measure(View.java:15479) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.widget.LinearLayout.measureVertical(LinearLayout.java:833) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.widget.LinearLayout.onMeasure(LinearLayout.java:574) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.view.View.measure(View.java:15479) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4828) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310) 06-20 12:44:34.767: E/AndroidRuntime(9394): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2359) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.view.View.measure(View.java:15479) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1968) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1214) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1387) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1107) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4464) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:725) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.view.Choreographer.doCallbacks(Choreographer.java:555) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.view.Choreographer.doFrame(Choreographer.java:525) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:711) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.os.Handler.handleCallback(Handler.java:615) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.os.Handler.dispatchMessage(Handler.java:92) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.os.Looper.loop(Looper.java:137) 06-20 12:44:34.767: E/AndroidRuntime(9394): at android.app.ActivityThread.main(ActivityThread.java:4895) 06-20 12:44:34.767: E/AndroidRuntime(9394): at java.lang.reflect.Method.invokeNative(Native Method) 06-20 12:44:34.767: E/AndroidRuntime(9394): at java.lang.reflect.Method.invoke(Method.java:511) 06-20 12:44:34.767: E/AndroidRuntime(9394): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:994) 06-20 12:44:34.767: E/AndroidRuntime(9394): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:761) 06-20 12:44:34.767: E/AndroidRuntime(9394): at dalvik.system.NativeStart.main(Native Method) </code></pre>
 

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