I want to show the list+Description in tablet view. Code below works fine with Portrait mode but stopped when in Landscape mode. Is it something wrong?
MainActivity
import android.os.Bundle;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentTransaction;
import android.app.ListFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListAdapter;
public class MainActivity extends Activity {
// if run on phone, isSinglePane = true
// if run on tablet, isSinglePane = false
boolean isSinglePane;
static String[] month ={
"January", "February", "March", "April",
"May", "June", "July", "August",
"September", "October", "November", "December"};
public static class MyListFragment extends ListFragment {
@Override
public void onActivityCreated(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onActivityCreated(savedInstanceState);
ListAdapter myArrayAdapter =
new ArrayAdapter<String>(
getActivity(), android.R.layout.simple_list_item_1, month);
setListAdapter(myArrayAdapter);
}
}
public static class MyDetailFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
View view = inflater.inflate(R.layout.layout_detailfragment, null);
return view;
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
View v = findViewById(R.id.phone_container);
if(v == null){
//it's run on tablet
isSinglePane = false;
/*
* MyListFragment and MyDetailFragment have been loaded in XML,
* no need load.
*/
}else{
//it's run on phone
//Load MyListFragment programmatically
isSinglePane = true;
if(savedInstanceState == null){
//if's the first time created
MyListFragment myListFragment = new MyListFragment();
FragmentTransaction fragmentTransaction = getFragmentManager().beginTransaction();
fragmentTransaction.add(R.id.phone_container, myListFragment);
fragmentTransaction.commit();
}
}
}
}
Layout/activityMain.xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<fragment
android:id="@+id/titles"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
</FrameLayout>
res/Layout-land/activitymain.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:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:orientation="vertical"
tools:context=".MainActivity" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Normal" />
<FrameLayout
android:id="@+id/phone_container"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</FrameLayout>
</LinearLayout>
LayoutdetailFragment.xml
<?xml version="1.0" encoding="utf-8"?>
<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">
<TextView
android:id="@+id/title_detailfragment"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Detail Fragment"/>
</LinearLayout>
Error
See Question&Answers more detail:osE/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.fyp_awais.tab, PID: 3974 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.fyp_awais.tab/com.example.fyp_awais.tab.MainActivity}: android.view.InflateException: Binary XML file line #20: Error inflating class fragment at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2325) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387) 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:5254) 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: android.view.InflateException: Binary XML file line #20: Error inflating class fragment at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:763) at android.view.LayoutInflater.rInflate(LayoutInflater.java:806) at android.view.LayoutInflater.rInflate(LayoutInflater.java:809) at android.view.LayoutInflater.inflate(LayoutInflater.java:504) at android.view.LayoutInflater.inflate(LayoutInflater.java:414) at android.view.LayoutInflater.inflate(LayoutInflater.java:365) at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:378) at android.app.Activity.setContentView(Activity.java:2145) at com.example.fyp_awais.tab.MainActivity.onCreate(MainActivity.java:56) 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:2387)? 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:5254)? 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 at java.lang.VMClassLoader.findLoadedClass(Native Method) at java.lang.ClassLoader.findLoadedClass(ClassLoader.java:362) at java.lang.ClassLoader.loadClass(ClassLoader.java:499) at java.lang.ClassLoader.loadClass(ClassLoader.java:469) at android.app.Fragment.instantiate(Fragment.java:604) at android.app.Fragment.instantiate(Fragment.java:582) at android.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2108) at android.app.Activity.onCreateView(Activity.java:5328) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:733) at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)? at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)? at android.view.LayoutInflater.inflate(LayoutInflater.java:504)? at android.view.LayoutInflater.inflate(LayoutInflater.java:414)? at android.view.LayoutInflater.inflate(LayoutInflater.java:365)? at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:378)? at android.app.Activity.setContentView(Activity.java:2145)? at com.example.fyp_awais.tab.MainActivity.onCreate(MainActivity.java:56)? 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:2387)? 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:5254)? 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)? Application terminated.