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PONullpointer exception in fragment layout
 

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  1. PONullpointer exception in fragment layout
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    <p>I'm sure, I am missing out something really simple here but for some reason upon running this piece of code i get Null-pointer exception.Does anyone know why?</p> <pre><code>11-27 20:27:30.568: E/AndroidRuntime(32479): FATAL EXCEPTION: main 11-27 20:27:30.568: E/AndroidRuntime(32479): Process: com.example.makemyday, PID: 32479 11-27 20:27:30.568: E/AndroidRuntime(32479): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.makemyday/com.example.makemyday.ActionDetailActivity}: java.lang.NullPointerException 11-27 20:27:30.568: E/AndroidRuntime(32479): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2176) 11-27 20:27:30.568: E/AndroidRuntime(32479): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2226) 11-27 20:27:30.568: E/AndroidRuntime(32479): at android.app.ActivityThread.access$700(ActivityThread.java:135) 11-27 20:27:30.568: E/AndroidRuntime(32479): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1397) 11-27 20:27:30.568: E/AndroidRuntime(32479): at android.os.Handler.dispatchMessage(Handler.java:102) 11-27 20:27:30.568: E/AndroidRuntime(32479): at android.os.Looper.loop(Looper.java:137) 11-27 20:27:30.568: E/AndroidRuntime(32479): at android.app.ActivityThread.main(ActivityThread.java:4998) 11-27 20:27:30.568: E/AndroidRuntime(32479): at java.lang.reflect.Method.invokeNative(Native Method) 11-27 20:27:30.568: E/AndroidRuntime(32479): at java.lang.reflect.Method.invoke(Method.java:515) 11-27 20:27:30.568: E/AndroidRuntime(32479): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:777) 11-27 20:27:30.568: E/AndroidRuntime(32479): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:593) 11-27 20:27:30.568: E/AndroidRuntime(32479): at dalvik.system.NativeStart.main(Native Method) 11-27 20:27:30.568: E/AndroidRuntime(32479): Caused by: java.lang.NullPointerException 11-27 20:27:30.568: E/AndroidRuntime(32479): at com.example.makemyday.EventDetailsFragment.onCreateView(EventDetailsFragment.java:34) 11-27 20:27:30.568: E/AndroidRuntime(32479): at android.support.v4.app.Fragment.performCreateView(Fragment.java:1500) 11-27 20:27:30.568: E/AndroidRuntime(32479): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:927) 11-27 20:27:30.568: E/AndroidRuntime(32479): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1104) 11-27 20:27:30.568: E/AndroidRuntime(32479): at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682) 11-27 20:27:30.568: E/AndroidRuntime(32479): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1467) 11-27 20:27:30.568: E/AndroidRuntime(32479): at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:570) </code></pre> <p><strong>fragment_event_detail.xml</strong></p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" &gt; &lt;ScrollView android:layout_width="fill_parent" android:layout_height="132dp" &gt; &lt;EditText android:id="@+id/event_description" android:layout_width="fill_parent" android:layout_height="wrap_content" android:ems="10" android:hint="@string/hint_description" android:inputType="text" android:padding="16dp" android:textIsSelectable="true" android:scrollbars = "vertical" android:lines="4" android:textSize="14sp" /&gt; &lt;/ScrollView&gt; &lt;LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:paddingLeft="0dip" android:paddingRight="0dip" &gt; &lt;EditText android:id="@+id/quantity" android:layout_width="166dp" android:layout_height="wrap_content" android:padding="16dp" android:textIsSelectable="true" /&gt; &lt;Spinner android:id="@+id/category_quantity" android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="0.01" android:textSize="14dip" /&gt; &lt;/LinearLayout&gt; &lt;LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:paddingLeft="0dip" android:paddingRight="0dip" &gt; &lt;Spinner android:id="@+id/category_query" android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="0.01" android:textSize="14dip" /&gt; &lt;/LinearLayout&gt; &lt;/LinearLayout&gt; </code></pre> <p><strong>EventDetailsFragment</strong></p> <pre><code> package com.example.makemyday; import android.os.Bundle; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.EditText; import android.widget.Spinner; import android.widget.TextView; import android.widget.AdapterView.OnItemSelectedListener; public class EventDetailsFragment extends Fragment implements OnItemSelectedListener{ @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater.inflate(R.layout.fragment_action_detail, container, false); // Show the dummy content as text in a TextView. Spinner category=(Spinner)rootView.findViewById(R.id.category_query); ArrayAdapter&lt;CharSequence&gt; adapterCategory = ArrayAdapter.createFromResource(this.getActivity().getBaseContext(),R.array.category_names, android.R.layout.simple_spinner_item); adapterCategory.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); category.setAdapter(adapterCategory); category.setOnItemSelectedListener(this); Spinner quantity=(Spinner)rootView.findViewById(R.id.category_quantity); ArrayAdapter&lt;CharSequence&gt; adapterQuantity = ArrayAdapter.createFromResource(this.getActivity().getBaseContext(),R.array.quantity_names, android.R.layout.simple_spinner_item); adapterQuantity.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); quantity.setAdapter(adapterQuantity); quantity.setOnItemSelectedListener(this); EditText description = (EditText)rootView.findViewById(R.id.event_description); description.setText("this"); return rootView; } public void onItemSelected(AdapterView&lt;?&gt; arg0, View arg1, int arg2, long arg3) { // TODO Auto-generated method stub } public void onNothingSelected(AdapterView&lt;?&gt; arg0) { // TODO Auto-generated method stub } } </code></pre>
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    1. COwhere u get null pointer
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      1. USBhanu Sharma
    2. COpost your logcat to reach `NullPointerException`...
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      1. USAbhishek Patel
    3. COcan u post the logcat for the exception
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      1. USEldhose M Babu
 

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