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null object reference error in onCreate() method in Main Activity

While working with fragments, I received this error. I have looked around a lot, here, various tutorials and all, but I just can't seem to tell, where I have gone wrong... I know this question has been asked repeatedly and all, but help me out!
Thanks in Advance!
PS: Haven't posted a question before, so, Sorry in advance too!
Main Activity
public class MainActivity extends FragmentActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if(savedInstanceState==null)
{
getSupportFragmentManager().beginTransaction().add(R.id.fragment,new MainActivityFragment()).commit();
}
}
Fragment Activity
public class MainActivityFragment extends Fragment {
CalendarView cv;
Context context;
public MainActivityFragment() {
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//getActivity().setContentView(R.layout.fragment_main);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_main, container, false);
EditText editText = (EditText) view.findViewById(R.id.editText);
editText.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
getCalendarView();
}
});
return view;
}
MainActivity Layout
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin"
tools:context="com.example.ipt02.spotchecktrial1.MainActivity"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Is this coming?"/>
<fragment
android:id="#+id/fragment"
class="com.example.ipt02.spotchecktrial1.MainActivityFragment"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
And finally the logcat:
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.ipt02.spotchecktrial1/com.example.ipt02.spotchecktrial1.MainActivity}:
java.lang.NullPointerException: Attempt to invoke interface method
'java.lang.String java.lang.CharSequence.toString()' on a null object
reference at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2325) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2390)
at android.app.ActivityThread.access$800(ActivityThread.java:151) at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5257)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
Caused by: java.lang.NullPointerException: Attempt to invoke interface method 'java.lang.String java.lang.CharSequence.toString()' on a null object reference
at android.content.res.TypedArray.getString(TypedArray.java:176)
at android.view.View.<init>(View.java:3992)
at android.view.ViewGroup.<init>(ViewGroup.java:497)
at android.view.ViewGroup.<init>(ViewGroup.java:493)
at android.view.ViewGroup.<init>(ViewGroup.java:489)
at android.view.ViewGroup.<init>(ViewGroup.java:485)
at android.widget.FrameLayout.<init>(FrameLayout.java:103)
at com.android.internal.policy.impl.PhoneWindow$DecorView.<init>(PhoneWindow.java:2226)
at com.android.internal.policy.impl.PhoneWindow.generateDecor(PhoneWindow.java:3316)
at com.android.internal.policy.impl.PhoneWindow.installDecor(PhoneWindow.java:3669)
at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:368)
at android.app.Activity.setContentView(Activity.java:2145)
at com.example.ipt02.spotchecktrial1.MainActivity.onCreate(MainActivity.java:22)
at android.app.Activity.performCreate(Activity.java:5990)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2390)
            at android.app.ActivityThread.access$800(ActivityThread.java:151)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5257)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
EDIT - ADDED Strings.XML file
<string name="hello_blank_fragment">Hello blank fragment</string>
<string-array name="location">
<item>Amsterdam</item>
<item>Dubai</item>
<item>Great Coral Reef</item>
</string-array>
<string-array name="shift">
<item>Shift - A</item>
<item>Shift - B</item>
</string-array>
<string-array name="disciples">
<item>Sammy</item>
<item>John</item>
<item>Arry</item>
<item>Voldy</item>
</string-array>
<string name="title_activity_main">MainActivity</string>

In your MainActivity use this way
Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
FragmentManager fm = getSupportFragmentManager();
fragment = fm.findFragmentByTag("myFragmentTag");
if (fragment == null) {
FragmentTransaction ft = fm.beginTransaction();
fragment =new MyFragment();
ft.add(android.R.id.content,fragment,"myFragmentTag");
ft.commit();
}
}

Inflation exception error from android

Hello i'm struggling with these error for past of couple of hours to no avail. I am trying to pass data from my activity to the fragment but not succeeding in doing so. My guess it's complaining about my <fragment> in activity_second.xml file. My guess might be wrong. Has anyone encountered this error? But i don't know how to resolve this error.Would some please guide in me what i did wrong. Below is my code:
first_fragment.xml:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/fragmentPic" >
<TextView
android:id="#+id/textName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/users_FirstName"
android:textSize="#dimen/font_size"
android:layout_gravity="center_horizontal"/>
<com.facebook.login.widget.ProfilePictureView
android:id="#+id/profilePic"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
>
</com.facebook.login.widget.ProfilePictureView>
</LinearLayout>
FirstFragment.java:
public class FirstFragment extends Fragment {
private ProfilePictureView profilePictureView;
private TextView textView;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
// return super.onCreateView(inflater, container, savedInstanceState);
View rootView = inflater.inflate(R.layout.first_fragment, container, false);
Bundle bundle = new Bundle();
bundle = this.getArguments();
String profileId = bundle.getString("profileId"); //complains here and returns null
TextView textView = (TextView)rootView.findViewById(R.id.textName);
textView.setText(bundle.getString("names"));
return rootView;
}
}
activity_second.xml:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#color/backgroundColor"
>
<include android:id="#+id/toolBar"
layout="#layout/toolbar" />
<android.support.v4.widget.DrawerLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/drawer">
<fragment
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:layout="#layout/first_fragment"
class="edu.sjsu.cmpe277.termproject.Fragments.FirstFragment"
android:id="#+id/fragment1"
/>
</android.support.v4.widget.DrawerLayout>
</LinearLayout>
secondActivity.java:
public class secondActivity extends AppCompatActivity {
private Intent intent;
private Toolbar toolbar;
private String firstName, profileId;
private FirstFragment firstFragment;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second);
intent = getIntent();
firstName = intent.getStringExtra("firstName");
profileId = intent.getStringExtra("Id");
toolbar = (Toolbar)findViewById(R.id.toolBar);
setSupportActionBar(toolbar);
toolbar.setLogo(R.drawable.ic_menu_image);
getSupportActionBar().setDisplayShowHomeEnabled(true);
getSupportActionBar().setDisplayShowTitleEnabled(false);
firstFragment = new FirstFragment();
Bundle bundle = new Bundle();
bundle.putString("names", firstName);
bundle.putString("profileId", profileId);
firstFragment.setArguments(bundle);
FragmentManager manager = getSupportFragmentManager();
FragmentTransaction transaction = manager.beginTransaction();
transaction.add(R.id.drawer, firstFragment,"newFrag").commit();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_second, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
switch(item.getItemId()) {
case android.R.id.home:
Intent homeIntent = new Intent(this, secondActivity.class );
homeIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(homeIntent);
}
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
And this error below:
29 01:50:11.402 13536-13536/edu.sjsu.cmpe277.termproject E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: edu.sjsu.cmpe277.termproject, PID: 13536
java.lang.RuntimeException: Unable to start activity ComponentInfo{edu.sjsu.cmpe277.termproject/edu.sjsu.cmpe277.termproject.secondActivity}: android.view.InflateException: Binary XML file line #82: Error inflating class fragment
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2693)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2758)
at android.app.ActivityThread.access$900(ActivityThread.java:177)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1448)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5942)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)
Caused by: android.view.InflateException: Binary XML file line #82: Error inflating class fragment
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:770)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:813)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:821)
at android.view.LayoutInflater.inflate(LayoutInflater.java:511)
at android.view.LayoutInflater.inflate(LayoutInflater.java:415)
at android.view.LayoutInflater.inflate(LayoutInflater.java:366)
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:255)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:109)
at edu.sjsu.cmpe277.termproject.secondActivity.onCreate(secondActivity.java:43)
at android.app.Activity.performCreate(Activity.java:6289)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2646)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2758)
            at android.app.ActivityThread.access$900(ActivityThread.java:177)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1448)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:145)
            at android.app.ActivityThread.main(ActivityThread.java:5942)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.os.Bundle.getString(java.lang.String)' on a null object reference
at edu.sjsu.cmpe277.termproject.Fragments.FirstFragment.onCreateView(FirstFragment.java:44)
at android.support.v4.app.Fragment.performCreateView(Fragment.java:1962)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:995)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1185)
at android.support.v4.app.FragmentManagerImpl.addFragment(FragmentManager.java:1287)
at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2243)
at android.support.v4.app.FragmentController.onCreateView(FragmentController.java:111)
at android.support.v4.app.FragmentActivity.dispatchFragmentsOnCreateView(FragmentActivity.java:278)
at android.support.v4.app.BaseFragmentActivityHoneycomb.onCreateView(BaseFragmentActivityHoneycomb.java:31)
at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:78)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:740)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:813)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:821)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:511)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:415)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:366)
            at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:255)
            at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:109)
            at edu.sjsu.cmpe277.termproject.secondActivity.onCreate(secondActivity.java:43)
            at android.app.Activity.performCreate(Activity.java:6289)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2646)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2758)
            at android.app.ActivityThread.access$900(ActivityThread.java:177)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1448)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:145)
            at android.app.ActivityThread.main(ActivityThread.java:5942)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)

Get rid of
<fragment
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:layout="#layout/first_fragment"
class="edu.sjsu.cmpe277.termproject.Fragments.FirstFragment"
android:id="#+id/fragment1"
/>
and use only the explicitly transaction you are using in your Activity. You can't pass a Bundle, declaring a Fragment in the layout, and try to accessing it, is making your app crash

In your activity_second.xml file, change:
class="edu.sjsu.cmpe277.termproject.Fragments.FirstFragment"
to
android:name="edu.sjsu.cmpe277.termproject.Fragments.FirstFragment"
That's the correct prefix to use.

Android app crashes on start with null pointer exception

I am new to android and java I tried to create a navigation drawer screen in android from the tutorials :
http://www.androidhive.info/2013/11/android-sliding-menu-using-navigation-drawer/
but I am getting exception as :
--------- beginning of crash
05-02 11:23:49.153 2738-2738/kanix.highrise.com.highrise E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: kanix.highrise.com.highrise, PID: 2738
java.lang.RuntimeException: Unable to start activity ComponentInfo{kanix.highrise.com.highrise/kanix.highrise.com.highrise.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.app.ActionBar.setDisplayHomeAsUpEnabled(boolean)' on a null object reference
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2298)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
at android.app.ActivityThread.access$800(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.app.ActionBar.setDisplayHomeAsUpEnabled(boolean)' on a null object reference
at kanix.highrise.com.highrise.MainActivity.onCreate(MainActivity.java:88)
at android.app.Activity.performCreate(Activity.java:5937)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
            at android.app.ActivityThread.access$800(ActivityThread.java:144)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5221)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
05-02 11:23:49.390 2738-2751/kanix.highrise.com.highrise I/art﹕ Background partial concurrent mark sweep GC freed 360(66KB) AllocSpace objects, 0(0B) LOS objects, 52% free, 465KB/977KB, paused 1.273ms total 220.874ms
05-02 11:26:01.559 2791-2791/kanix.highrise.com.highrise D/AndroidRuntime﹕ Shutting down VM
05-02 11:26:01.715 2791-2791/kanix.highrise.com.highrise E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: kanix.highrise.com.highrise, PID: 2791
java.lang.RuntimeException: Unable to start activity ComponentInfo{kanix.highrise.com.highrise/kanix.highrise.com.highrise.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.app.ActionBar.setDisplayHomeAsUpEnabled(boolean)' on a null object reference
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2298)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
at android.app.ActivityThread.access$800(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.app.ActionBar.setDisplayHomeAsUpEnabled(boolean)' on a null object reference
at kanix.highrise.com.highrise.MainActivity.onCreate(MainActivity.java:88)
at android.app.Activity.performCreate(Activity.java:5937)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
            at android.app.ActivityThread.access$800(ActivityThread.java:144)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5221)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
05-02 11:26:01.772 2791-2803/kanix.highrise.com.highrise I/art﹕ Background partial concurrent mark sweep GC freed 345(52KB) AllocSpace objects, 0(0B) LOS objects, 51% free, 479KB/991KB, paused 43.642ms total 205.582ms
05-02 11:27:33.452 2835-2835/kanix.highrise.com.highrise I/art﹕ Not late-enabling -Xcheck:jni (already on)
05-02 11:27:33.581 2835-2835/kanix.highrise.com.highrise D/AndroidRuntime﹕ Shutting down VM
05-02 11:27:33.581 2835-2835/kanix.highrise.com.highrise E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: kanix.highrise.com.highrise, PID: 2835
java.lang.RuntimeException: Unable to start activity ComponentInfo{kanix.highrise.com.highrise/kanix.highrise.com.highrise.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.app.ActionBar.setDisplayHomeAsUpEnabled(boolean)' on a null object reference
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2298)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
at android.app.ActivityThread.access$800(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.app.ActionBar.setDisplayHomeAsUpEnabled(boolean)' on a null object reference
at kanix.highrise.com.highrise.MainActivity.onCreate(MainActivity.java:88)
at android.app.Activity.performCreate(Activity.java:5937)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
            at android.app.ActivityThread.access$800(ActivityThread.java:144)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5221)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
05-02 11:29:36.573 2917-2917/kanix.highrise.com.highrise D/AndroidRuntime﹕ Shutting down VM
05-02 11:29:36.573 2917-2917/kanix.highrise.com.highrise E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: kanix.highrise.com.highrise, PID: 2917
java.lang.RuntimeException: Unable to start activity ComponentInfo{kanix.highrise.com.highrise/kanix.highrise.com.highrise.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.app.ActionBar.setDisplayHomeAsUpEnabled(boolean)' on a null object reference
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2298)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
at android.app.ActivityThread.access$800(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.app.ActionBar.setDisplayHomeAsUpEnabled(boolean)' on a null object reference
at kanix.highrise.com.highrise.MainActivity.onCreate(MainActivity.java:88)
at android.app.Activity.performCreate(Activity.java:5937)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
            at android.app.ActivityThread.access$800(ActivityThread.java:144)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5221)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
           
 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
I copied the code and I had some activities in my code working perfectly but now I tried to add navigation drawer activity to my app but it crashes on start. My menifest file is like this:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="kanix.highrise.com.highrise" >
<application
android:allowBackup="true"
android:icon="#mipmap/icon"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".StartActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<action android:name="com.example.intentdemo.LAUNCH" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".LoginActivity"
android:icon="#mipmap/ic_launcher"
android:label="loginactivity" >
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<action android:name="com.example.intentdemo.LAUNCH" />
<category android:name="android.intent.category.DEFAULT" />
<data android:scheme="http" />
</intent-filter>
</activity>
<activity
android:name=".Dashboard"
android:label="#string/title_activity_dashboard" >
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<action android:name="com.example.intentdemo.LAUNCH" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".MainActivity"
android:label="#string/title_activity_main" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
My main activity java class is like this:
package kanix.highrise.com.highrise;
import java.util.ArrayList;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.content.res.Configuration;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.widget.DrawerLayout;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import kanix.highrise.com.highrise.adapter.NavDrawerListAdapter;
import kanix.highrise.com.highrise.model.NavDrawerItem;
public class MainActivity extends Activity {
private DrawerLayout mDrawerLayout;
private ListView mDrawerList;
private ActionBarDrawerToggle mDrawerToggle;
// nav drawer title
private CharSequence mDrawerTitle;
// used to store app title
private CharSequence mTitle;
// slide menu items
private String[] navMenuTitles;
private TypedArray navMenuIcons;
private ArrayList<NavDrawerItem> navDrawerItems;
private NavDrawerListAdapter adapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mTitle = mDrawerTitle = getTitle();
// load slide menu items
navMenuTitles = getResources().getStringArray(R.array.nav_drawer_items);
// nav drawer icons from resources
navMenuIcons = getResources()
.obtainTypedArray(R.array.nav_drawer_icons);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ListView) findViewById(R.id.list_slidermenu);
navDrawerItems = new ArrayList<NavDrawerItem>();
// adding nav drawer items to array
// Home
navDrawerItems.add(new NavDrawerItem(navMenuTitles[0], navMenuIcons.getResourceId(0, -1)));
// Find People
navDrawerItems.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons.getResourceId(1, -1)));
// Photos
navDrawerItems.add(new NavDrawerItem(navMenuTitles[2], navMenuIcons.getResourceId(2, -1)));
// Communities, Will add a counter here
navDrawerItems.add(new NavDrawerItem(navMenuTitles[3], navMenuIcons.getResourceId(3, -1), true, "22"));
// Pages
navDrawerItems.add(new NavDrawerItem(navMenuTitles[4], navMenuIcons.getResourceId(4, -1)));
// What's hot, We will add a counter here
navDrawerItems.add(new NavDrawerItem(navMenuTitles[5], navMenuIcons.getResourceId(5, -1), true, "50+"));
// Recycle the typed array
navMenuIcons.recycle();
mDrawerList.setOnItemClickListener(new SlideMenuClickListener());
// setting the nav drawer list adapter
adapter = new NavDrawerListAdapter(getApplicationContext(),
navDrawerItems);
mDrawerList.setAdapter(adapter);
// enabling action bar app icon and behaving it as toggle button
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setHomeButtonEnabled(true);
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
R.drawable.ic_drawer, //nav menu toggle icon
R.string.app_name, // nav drawer open - description for accessibility
R.string.app_name // nav drawer close - description for accessibility
) {
public void onDrawerClosed(View view) {
getActionBar().setTitle(mTitle);
// calling onPrepareOptionsMenu() to show action bar icons
invalidateOptionsMenu();
}
public void onDrawerOpened(View drawerView) {
getActionBar().setTitle(mDrawerTitle);
// calling onPrepareOptionsMenu() to hide action bar icons
invalidateOptionsMenu();
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
if (savedInstanceState == null) {
// on first time display view for first nav item
displayView(0);
}
}
/**
* Slide menu item click listener
* */
private class SlideMenuClickListener implements
ListView.OnItemClickListener {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
// display view for selected nav drawer item
displayView(position);
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// toggle nav drawer on selecting action bar app icon/title
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
// Handle action bar actions click
switch (item.getItemId()) {
case R.id.action_settings:
return true;
default:
return super.onOptionsItemSelected(item);
}
}
/* *
* Called when invalidateOptionsMenu() is triggered
*/
#Override
public boolean onPrepareOptionsMenu(Menu menu) {
// if nav drawer is opened, hide the action items
boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList);
menu.findItem(R.id.action_settings).setVisible(!drawerOpen);
return super.onPrepareOptionsMenu(menu);
}
/**
* Diplaying fragment view for selected nav drawer list item
* */
private void displayView(int position) {
// update the main content by replacing fragments
Fragment fragment = null;
switch (position) {
case 0:
fragment = new HomeFragment();
break;
case 1:
fragment = new FindPeopleFragment();
break;
case 2:
fragment = new PhotosFragment();
break;
case 3:
fragment = new CommunityFragment();
break;
case 4:
fragment = new PagesFragment();
break;
case 5:
fragment = new WhatsHotFragment();
break;
default:
break;
}
if (fragment != null) {
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment).commit();
// update selected item and title, then close the drawer
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(navMenuTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
} else {
// error in creating fragment
Log.e("MainActivity", "Error in creating fragment");
}
}
#Override
public void setTitle(CharSequence title) {
mTitle = title;
getActionBar().setTitle(mTitle);
}
/**
* When using the ActionBarDrawerToggle, you must call it during
* onPostCreate() and onConfigurationChanged()...
*/
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// Sync the toggle state after onRestoreInstanceState has occurred.
mDrawerToggle.syncState();
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
// Pass any configuration change to the drawer toggls
mDrawerToggle.onConfigurationChanged(newConfig);
}
}

You probably need to use an Action bar theme for your activity. Check out the first part of this document. You can specify a theme for the activity in the manifest in both the application and activity sections. For instance:
android:theme="#style/Theme.AppCompat.Light"

The major reason why app is crashing is you are using support Action bar toggle with Action Bar.
Try this convert your Activity to ActionBarActivity and use SupportActionBar in place of Action bar. ALso do not forget to use AppCompact theme with this in your style.xml.

Your code have error on Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.app.ActionBar.setDisplayHomeAsUpEnabled(boolean)' on a null object reference at kanix.highrise.com.highrise.MainActivity.onCreate(MainActivity.java:88)
Check this link for to fixed the bugs.

Android app crashes after rotating from LANDSCAPE to PORTRAIT

I'm building my first Android app and I've consulted quite some tutorials and stackoverflow posts, but I can't seem to find the proper fix for this problem.
I've been following YouTube tutorials from TheNewBoston and Derek Banas, as well as some written tutorials.
My app runs as it should when starting the app (being in Portrait mode). When I swap it to landscape, it still works fine. However when I rotate it back to portrait, the app crashes with the following error:
04-12 23:42:12.331 28004-28004/nl.avans.mbd2.android.gideon.van.david.multipanefragment E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: nl.avans.mbd2.android.gideon.van.david.multipanefragment, PID: 28004
java.lang.RuntimeException: Unable to start activity ComponentInfo{nl.avans.mbd2.android.gideon.van.david.multipanefragment/nl.avans.mbd2.android.gideon.van.david.multipanefragment.MainActivity}: android.view.InflateException: Binary XML file line #9: Error inflating class fragment
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2413)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2471)
at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:4054)
at android.app.ActivityThread.access$1000(ActivityThread.java:175)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1314)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:146)
at android.app.ActivityThread.main(ActivityThread.java:5602)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #9: Error inflating class fragment
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:719)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:761)
at android.view.LayoutInflater.inflate(LayoutInflater.java:498)
at android.view.LayoutInflater.inflate(LayoutInflater.java:398)
at android.view.LayoutInflater.inflate(LayoutInflater.java:354)
at android.support.v7.app.ActionBarActivityDelegateBase.setContentView(ActionBarActivityDelegateBase.java:240)
at android.support.v7.app.ActionBarActivity.setContentView(ActionBarActivity.java:102)
at nl.avans.mbd2.android.gideon.van.david.multipanefragment.MainActivity.onCreate(MainActivity.java:18)
at android.app.Activity.performCreate(Activity.java:5451)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1093)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2377)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2471)
            at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:4054)
            at android.app.ActivityThread.access$1000(ActivityThread.java:175)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1314)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:146)
            at android.app.ActivityThread.main(ActivityThread.java:5602)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099)
            at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.IllegalStateException: Fragment nl.avans.mbd2.android.gideon.van.david.multipanefragment.MainPanelFragment did not create a view.
at android.app.Activity.onCreateView(Activity.java:5020)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:695)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:761)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:498)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:398)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:354)
            at android.support.v7.app.ActionBarActivityDelegateBase.setContentView(ActionBarActivityDelegateBase.java:240)
            at android.support.v7.app.ActionBarActivity.setContentView(ActionBarActivity.java:102)
            at nl.avans.mbd2.android.gideon.van.david.multipanefragment.MainActivity.onCreate(MainActivity.java:18)
            at android.app.Activity.performCreate(Activity.java:5451)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1093)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2377)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2471)
            at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:4054)
            at android.app.ActivityThread.access$1000(ActivityThread.java:175)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1314)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:146)
            at android.app.ActivityThread.main(ActivityThread.java:5602)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099)
            at dalvik.system.NativeStart.main(Native Method)
The actual error being:
java.lang.RuntimeException: Unable to start activity ComponentInfo{nl.avans.mbd2.android.gideon.van.david.multipanefragment/nl.avans.mbd2.android.gideon.van.david.multipanefragment.MainActivity}: android.view.InflateException: Binary XML file line #9: Error inflating class fragment
Caused by: android.view.InflateException: Binary XML file line #9: Error inflating class fragment
Caused by: java.lang.IllegalStateException: Fragment nl.avans.mbd2.android.gideon.van.david.multipanefragment.MainPanelFragment did not create a view.
My MainActivity looks like this:
public class MainActivity extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
int screenOrientation = getResources().getConfiguration().orientation;
if (screenOrientation == Configuration.ORIENTATION_PORTRAIT) {
hideSidePanel();
}
}
private void hideSidePanel() {
View detailPane = findViewById(R.id.detail_panel);
if(detailPane.getVisibility() == View.VISIBLE) {
detailPane.setVisibility(View.GONE);
}
}
}
MainPanelFragment:
public class MainPanelFragment extends ListFragment {
boolean orientation;
int currentListViewItem;
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
ArrayAdapter<String> connectArrayToListView = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_activated_1, API.dummyData);
setListAdapter(connectArrayToListView);
orientation = getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE;
if (savedInstanceState != null) {
currentListViewItem = savedInstanceState.getInt("curChoice", 0);
}
if (orientation) {
getListView().setChoiceMode(ListView.CHOICE_MODE_SINGLE);
showDetails(currentListViewItem);
}
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
super.onCreateView(inflater, container, savedInstanceState);
return inflater.inflate(R.layout.fragment_main_panel, container, false);
}
#Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putInt("curChoice", currentListViewItem);
}
#Override
public void onListItemClick(ListView l, View v, int position, long id) {
showDetails(position);
// super.onListItemClick(l, v, position, id);
}
void showDetails(int kaart) {
currentListViewItem = kaart;
if (orientation) {
getListView().setItemChecked(kaart, true);
DetailPanelFragment details = (DetailPanelFragment) getFragmentManager().findFragmentById(R.id.detail_panel);
if (details == null || details.getShowIndex() == -1) {
details = DetailPanelFragment.newInstance(kaart);
FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.replace(R.id.main_panel, details);
ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
ft.commit();
}
} else {
Intent intent = new Intent();
intent.setClass(getActivity(), DetailsActivity.class);
intent.putExtra("index", kaart);
startActivity(intent);
}
}
}
activity_main.xml:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:animateLayoutChanges="true"
tools:context=".MainActivity">
<fragment
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="2"
android:id="#+id/main_panel"
android:layout_alignParentRight="true"
class="nl.avans.mbd2.android.gideon.van.david.multipanefragment.MainPanelFragment"/>
<fragment
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:id="#+id/detail_panel"
android:layout_alignParentLeft="true"
class="nl.avans.mbd2.android.gideon.van.david.multipanefragment.DetailPanelFragment"/>
</LinearLayout>
fragment_detail_panel.xml:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/holo_blue_bright"
android:layout_gravity="top|center"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Detail panel"
android:textColor="#android:color/white"
android:textStyle="bold"
android:id="#+id/kaartenListViewDetail"
/>
</LinearLayout>
fragment_main_panel.xml:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/holo_red_dark"
android:layout_gravity="top|center"
android:orientation="vertical">
<ListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#android:id/list">
</ListView>
</LinearLayout>
I also have a folder in /res named layout-land. It contains an activity_main.xml file which is exactly identical to the one posted above.
I've seen similiar questions like this one but it seems that this situation is not (enough) the same to find a valid answer.

Unable to load fragment into activity

I am trying to add the abmob ads to an activity in my android app but the the fragment will not load. When the application load it crash and say's Unable to start activity ComponentInfo{catchmedia.jamaica.dictionary/catchmedia.jamaica.dictionary.HomeActivity}: android.view.InflateException: Binary XML file line #15: Error inflating class fragment. what is that i have done wrong?
stacktrace
01-06 22:28:02.335 1356-1356/catchmedia.jamaica.dictionary E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: catchmedia.jamaica.dictionary, PID: 1356
java.lang.RuntimeException: Unable to start activity ComponentInfo{catchmedia.jamaica.dictionary/catchmedia.jamaica.dictionary.HomeActivity}: android.view.InflateException: Binary XML file line #15: Error inflating class fragment
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
at android.app.ActivityThread.access$800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #15: Error inflating class fragment
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:290)
at android.app.Activity.setContentView(Activity.java:1929)
at catchmedia.jamaica.dictionary.HomeActivity.onCreate(HomeActivity.java:39)
at android.app.Activity.performCreate(Activity.java:5231)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
            at android.app.ActivityThread.access$800(ActivityThread.java:135)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5017)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
            at dalvik.system.NativeStart.main(Native Method)
Caused by: android.content.res.Resources$NotFoundException: Resource ID #0x7f030004
at android.content.res.Resources.getValue(Resources.java:1123)
at android.content.res.Resources.loadXmlResourceParser(Resources.java:2309)
at android.content.res.Resources.getLayout(Resources.java:939)
at android.view.LayoutInflater.inflate(LayoutInflater.java:395)
at catchmedia.jamaica.dictionary.HomeActivity$AdFragment.onCreateView(HomeActivity.java:156)
at android.support.v4.app.Fragment.performCreateView(Fragment.java:1786)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:920)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1104)
at android.support.v4.app.FragmentManagerImpl.addFragment(FragmentManager.java:1206)
at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2159)
at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:297)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:685)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
            at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:290)
            at android.app.Activity.setContentView(Activity.java:1929)
            at catchmedia.jamaica.dictionary.HomeActivity.onCreate(HomeActivity.java:39)
            at android.app.Activity.performCreate(Activity.java:5231)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
            at android.app.ActivityThread.access$800(ActivityThread.java:135)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5017)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
            at dalvik.system.NativeStart.main(Native Method)
01-06 22:28:04.183 1356-1356/catchmedia.jamaica.dictionary I/Process﹕ Sending signal. PID: 1356 SIG: 9
AdFragment
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!--ads:adUnitId sets the ad unit ID, which is defined in values/strings.xml -->
<com.google.android.gms.ads.AdView
android:id="#+id/adView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
ads:adSize="BANNER"
ads:adUnitId="#string/banner_ad_unit_id" />
</RelativeLayout>
Xml Code
<android.support.v4.view.ViewPager
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</android.support.v4.view.ViewPager>
<fragment
android:id="#+id/adFragment"
android:name="catchmedia.jamaica.dictionary.HomeActivity$AdFragment"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true" />
Class
package catchmedia.jamaica.dictionary;
import android.app.ActionBar;
import android.app.ActionBar.Tab;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdView;
import java.util.List;
import catchmedia.jamaica.dictionary.adapter.TabsPagerAdapter;
import database.DatabaseHandler;
import database.DatabaseInfo;
import database.Word;
public class HomeActivity extends FragmentActivity implements
ActionBar.TabListener {
private ViewPager viewPager;
private TabsPagerAdapter tabsPagerAdapter;
private ActionBar actionBar;
DatabaseHandler db = new DatabaseHandler(this);
private String[] tabsTitles = {"Lesson", "Word"};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
initializeDatabase();
viewPager = (ViewPager) findViewById(R.id.pager);
actionBar = getActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);
tabsPagerAdapter = new TabsPagerAdapter(getSupportFragmentManager());
viewPager.setAdapter(tabsPagerAdapter);
actionBar.setHomeButtonEnabled(true);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
// Adding Tabs
for (String tab_name : tabsTitles) {
actionBar.addTab(actionBar.newTab().setText(tab_name)
.setTabListener(this));
}
/**
* on swiping the viewpager make respective tab selected
* */
viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageSelected(int position) {
// on changing the page
// make respected tab selected
actionBar.setSelectedNavigationItem(position);
}
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
#Override
public void onPageScrollStateChanged(int arg0) {
}
});
}
public void initializeDatabase() {
List<Word> words = db.getAllWords();
if (words.size() == 0) {
DatabaseInfo info = new DatabaseInfo(db);
info.insertWords();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
return super.onCreateOptionsMenu(menu);
}
#Override
public void onTabReselected(Tab arg0, FragmentTransaction arg1) {
// TODO Auto-generated method stub
}
#Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
// on tab selected
// show respected fragment view
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(Tab arg0, FragmentTransaction arg1) {
// TODO Auto-generated method stub
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle presses on the action bar items
switch (item.getItemId()) {
default:
return super.onOptionsItemSelected(item);
}
}
public static class AdFragment extends Fragment {
private AdView mAdView;
public AdFragment() {
}
#Override
public void onActivityCreated(Bundle bundle) {
super.onActivityCreated(bundle);
mAdView = (AdView) getView().findViewById(R.id.adView);
AdRequest adRequest = new AdRequest.Builder()
.addTestDevice(AdRequest.DEVICE_ID_EMULATOR)
.build();
mAdView.loadAd(adRequest);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_ad, container, false);
}
/** Called when leaving the activity */
#Override
public void onPause() {
if (mAdView != null) {
mAdView.pause();
}
super.onPause();
}
/** Called when returning to the activity */
#Override
public void onResume() {
super.onResume();
if (mAdView != null) {
mAdView.resume();
}
}
/** Called before the activity is destroyed */
#Override
public void onDestroy() {
if (mAdView != null) {
mAdView.destroy();
}
super.onDestroy();
}
}
}

In your HomeActivity class, you've imported android.support.v4.app.Fragment, android.support.v4.app.FragmentActivity, etc. There is a conflict here.
In your XML, you're using <fragment>. You need to either change your imports to android.app.Fragment, or change XML to:
<android.support.v4.app.fragment
android:id="#+id/adFragment"
android:name="catchmedia.jamaica.dictionary.HomeActivity$AdFragment"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true" />
If you're using fragments, and want to target devices before API 11, you should be using use android.support.v4.app.Fragment. However, if you're only targeting devices running API 11 or above, you can use android.app.Fragment.
Otherwise, there is a conflict between you using Fragment and Fragment from the Android support library.

You should change fragment to android.support.v4.Fragment in your xml file as your AdFragment extends from android.support.v4.Fragment.