Мое приложение падает, когда я иду в ландшафтном режиме

-1

У меня есть один фрагмент, отображаемый в действии, когда он находится в портретном режиме. Фрагмент содержит ListView. Когда элемент щелкнут, он открывает еще одно действие, в котором есть другой фрагмент, содержащий подробные сведения о клике элемента listView. Теперь, когда он находится в ландшафте, он должен показать первый фрагмент (ListView) и рядом с ним второй фрагмент (подробно о элементе, выбранном из ListView). Но он рушится. Ошибка в моем logcat является nullpointerexception. Любая помощь будет оценена по достоинству.Мое приложение падает, когда я иду в ландшафтном режиме

Мои GradeListActivity.java:

public class GradeListActivity extends Activity 
{ 
    public GradeCollection gc = new GradeCollection();  
    @Override 
    protected void onCreate(Bundle savedInstanceState) 
    { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.grade_list_activity); 
      FragmentManager fm = getFragmentManager(); 
      FragmentTransaction ft = fm.beginTransaction(); 
      //ListViewFragment LVF = new ListViewFragment(); 
      ft.add(R.id.ui_container, new ListViewFragment()); 
      //GradeDetailFragment GDF = new GradeDetailFragment(); 
      int currentOrientation = getResources().getConfiguration().orientation; 
      if (currentOrientation == Configuration.ORIENTATION_LANDSCAPE) 
      { 
       ft.add(R.id.ui_detail, new GradeDetailFragment()); 
      } 
      ft.commit(); 
    } 
}

мой grade_list_activity.xml (пейзаж):

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:orientation="horizontal" > 
    <FrameLayout 
     android:id="@+id/ui_container" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_gravity="left" 
     android:layout_weight="2" 
    /> 
    <FrameLayout 
     android:id="@+id/ui_detail" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_gravity="right" 
     android:layout_weight="2" 
    /> 
</LinearLayout>

мой grade_list_activity.xml:

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:orientation="vertical" > 
    <FrameLayout 
     android:id="@+id/ui_container" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
    /> 

</LinearLayout>

Мой GradeListFragment.java:

 public class GradeDetailFragment extends Fragment { 

     public GradeCollection gc = new GradeCollection(); 
     public int position; 


     @Override 
     public View onCreateView( LayoutInflater inflater, 
      ViewGroup container, 
      Bundle savedInstanceState) 
     { 
      View v = inflater.inflate(R.layout.grade_detail_fargment, container, false); 

      Activity a = getActivity(); 
      Intent i = a.getIntent(); 

      gc = (GradeCollection) i.getExtras().getSerializable("OriginalGradeCollectionInstance"); 
      position = (Integer) i.getExtras().getSerializable("position"); 


      EditText textCategory = (EditText) v.findViewById(R.id.editTextCategory); 
      EditText textNumber = (EditText) v.findViewById(R.id.editTextNumber); 
      EditText textGrade = (EditText) v.findViewById(R.id.editTextGrade); 
      EditText textDescription = (EditText) v.findViewById(R.id.editTextDescription); 


//This code chunk might be giving me NPE 
      //if(gc != null) 
      //{ 
       textCategory.setText(gc.GetItem(position).getCategory() + ""); 
       textNumber.setText(gc.GetItem(position).getNumber() + ""); 
       String grade = "" + gc.GetItem(position).getGrade(); 
       textGrade.setText(grade); 
       textDescription.setText(gc.GetItem(position).getDescription() + ""); 
      //} 
      return v; 
     } 
    }

И мой LogCat:

04-14 03:02:11.565: D/AndroidRuntime(3598): >>>>>> AndroidRuntime START com.android.internal.os.RuntimeInit <<<<<< 
04-14 03:02:11.565: D/AndroidRuntime(3598): CheckJNI is ON 
04-14 03:02:11.595: D/dalvikvm(3598): Trying to load lib libjavacore.so 0x0 
04-14 03:02:11.605: D/dalvikvm(3598): Added shared lib libjavacore.so 0x0 
04-14 03:02:11.635: D/dalvikvm(3598): Trying to load lib libnativehelper.so 0x0 
04-14 03:02:11.635: D/dalvikvm(3598): Added shared lib libnativehelper.so 0x0 
04-14 03:02:12.315: D/AndroidRuntime(3598): Calling main entry com.android.commands.pm.Pm 
04-14 03:02:12.365: W/ActivityManager(2382): No content provider found for permission revoke: file:///data/local/tmp/bcs421.muhammadqumail.hwk.gradeapp.presentation.apk 
04-14 03:02:12.465: W/ActivityManager(2382): No content provider found for permission revoke: file:///data/local/tmp/bcs421.muhammadqumail.hwk.gradeapp.presentation.apk 
04-14 03:02:12.465: I/PackageManager(2382): Copying native libraries to /data/app-lib/vmdl-1175232448 
04-14 03:02:12.665: I/PackageManager(2382): Removing non-system package:bcs421.muhammadqumail.hwk.gradeapp.presentation 
04-14 03:02:12.675: I/ActivityManager(2382): Force stopping package bcs421.muhammadqumail.hwk.gradeapp.presentation appid=10048 user=-1 
04-14 03:02:12.675: I/ActivityManager(2382): Killing proc 3543:bcs421.muhammadqumail.hwk.gradeapp.presentation/u0a10048: force stop bcs421.muhammadqumail.hwk.gradeapp.presentation 
04-14 03:02:12.675: I/ActivityManager(2382): Force finishing activity ActivityRecord{40ed9828 u0 bcs421.muhammadqumail.hwk.gradeapp.presentation/.MainActivity} 
04-14 03:02:12.705: I/WindowState(2382): WIN DEATH: Window{4110b3d0 u0 bcs421.muhammadqumail.hwk.gradeapp.presentation/bcs421.muhammadqumail.hwk.gradeapp.presentation.MainActivity} 
04-14 03:02:12.805: I/PackageManager(2382): Package bcs421.muhammadqumail.hwk.gradeapp.presentation codePath changed from /data/app/bcs421.muhammadqumail.hwk.gradeapp.presentation-1.apk to /data/app/bcs421.muhammadqumail.hwk.gradeapp.presentation-2.apk; Retaining data and using new 
04-14 03:02:12.815: I/PackageManager(2382): Running dexopt on: bcs421.muhammadqumail.hwk.gradeapp.presentation 
04-14 03:02:13.735: I/dalvikvm(3609): DexOpt: access denied from Landroid/support/v4/app/NotificationCompatKitKat; to field Landroid/app/Notification;.actions 
04-14 03:02:14.395: D/dalvikvm(3609): DexOpt: load 252ms, verify+opt 828ms, 1242628 bytes 
04-14 03:02:14.485: I/ActivityManager(2382): Force stopping package bcs421.muhammadqumail.hwk.gradeapp.presentation appid=10048 user=-1 
04-14 03:02:14.485: W/PackageManager(2382): Code path for pkg : bcs421.muhammadqumail.hwk.gradeapp.presentation changing from /data/app/bcs421.muhammadqumail.hwk.gradeapp.presentation-1.apk to /data/app/bcs421.muhammadqumail.hwk.gradeapp.presentation-2.apk 
04-14 03:02:14.485: W/PackageManager(2382): Resource path for pkg : bcs421.muhammadqumail.hwk.gradeapp.presentation changing from /data/app/bcs421.muhammadqumail.hwk.gradeapp.presentation-1.apk to /data/app/bcs421.muhammadqumail.hwk.gradeapp.presentation-2.apk 
04-14 03:02:14.565: D/PackageManager(2382): New package installed in /data/app/bcs421.muhammadqumail.hwk.gradeapp.presentation-2.apk 
04-14 03:02:14.655: I/ActivityManager(2382): Force stopping package bcs421.muhammadqumail.hwk.gradeapp.presentation appid=10048 user=0 
04-14 03:02:14.785: I/InputReader(2382): Reconfiguring input devices. changes=0x00000010 
04-14 03:02:14.805: W/ContextImpl(2873): Calling a method in the system process without a qualified user: android.app.ContextImpl.startService:1352 android.content.ContextWrapper.startService:450 android.content.ContextWrapper.startService:450 com.android.keychain.KeyChainBroadcastReceiver.onReceive:12 android.app.ActivityThread.handleReceiver:2376 
04-14 03:02:15.046: I/InputReader(2382): Reconfiguring input devices. changes=0x00000010 
04-14 03:02:15.205: W/InputMethodManagerService(2382): Found no subtypes in a system IME: com.android.inputmethod.pinyin 
04-14 03:02:15.545: D/dalvikvm(2382): GC_EXPLICIT freed 1115K, 24% free 7369K/9668K, paused 18ms+33ms, total 232ms 
04-14 03:02:15.575: D/AndroidRuntime(3598): Shutting down VM 
04-14 03:02:15.585: D/dalvikvm(3598): GC_CONCURRENT freed 94K, 18% free 467K/564K, paused 1ms+1ms, total 11ms 
04-14 03:02:15.585: D/jdwp(3598): Got wake-up signal, bailing out of select 
04-14 03:02:15.585: D/dalvikvm(3598): Debugger has detached; object registry had 1 entries 
04-14 03:02:15.835: W/RecognitionManagerService(2382): no available voice recognition services found for user 0 
04-14 03:02:16.285: D/AndroidRuntime(3617): >>>>>> AndroidRuntime START com.android.internal.os.RuntimeInit <<<<<< 
04-14 03:02:16.285: D/AndroidRuntime(3617): CheckJNI is ON 
04-14 03:02:16.345: D/dalvikvm(3617): Trying to load lib libjavacore.so 0x0 
04-14 03:02:16.366: D/dalvikvm(3617): Added shared lib libjavacore.so 0x0 
04-14 03:02:16.455: D/dalvikvm(3617): Trying to load lib libnativehelper.so 0x0 
04-14 03:02:16.455: D/dalvikvm(3617): Added shared lib libnativehelper.so 0x0 
04-14 03:02:17.215: D/AndroidRuntime(3617): Calling main entry com.android.commands.am.Am 
04-14 03:02:17.225: D/dalvikvm(3617): Note: class Landroid/app/ActivityManagerNative; has 157 unimplemented (abstract) methods 
04-14 03:02:17.245: I/ActivityManager(2382): START u0 {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=bcs421.muhammadqumail.hwk.gradeapp.presentation/.MainActivity} from pid 3617 
04-14 03:02:17.335: D/AndroidRuntime(3617): Shutting down VM 
04-14 03:02:17.345: D/dalvikvm(3627): Not late-enabling CheckJNI (already on) 
04-14 03:02:17.355: D/dalvikvm(3617): GC_CONCURRENT freed 96K, 17% free 499K/600K, paused 1ms+1ms, total 10ms 
04-14 03:02:17.355: D/jdwp(3617): Got wake-up signal, bailing out of select 
04-14 03:02:17.355: D/dalvikvm(3617): Debugger has detached; object registry had 1 entries 
04-14 03:02:17.385: I/ActivityManager(2382): Start proc bcs421.muhammadqumail.hwk.gradeapp.presentation for activity bcs421.muhammadqumail.hwk.gradeapp.presentation/.MainActivity: pid=3627 uid=10048 gids={50048, 1028} 
04-14 03:02:17.625: E/SurfaceFlinger(37): ro.sf.lcd_density must be defined as a build property 
04-14 03:02:17.765: E/Trace(3627): error opening trace file: No such file or directory (2) 
04-14 03:02:18.405: D/dalvikvm(3627): GC_CONCURRENT freed 73K, 7% free 2710K/2904K, paused 12ms+26ms, total 103ms 
04-14 03:02:18.445: E/SurfaceFlinger(37): ro.sf.lcd_density must be defined as a build property 
04-14 03:02:18.465: D/libEGL(3627): loaded /system/lib/egl/libEGL_emulation.so 
04-14 03:02:18.465: D/(3627): HostConnection::get() New Host Connection established 0x2a165848, tid 3627 
04-14 03:02:18.476: D/libEGL(3627): loaded /system/lib/egl/libGLESv1_CM_emulation.so 
04-14 03:02:18.485: D/libEGL(3627): loaded /system/lib/egl/libGLESv2_emulation.so 
04-14 03:02:18.525: W/EGL_emulation(3627): eglSurfaceAttrib not implemented 
04-14 03:02:18.535: D/OpenGLRenderer(3627): Enabling debug mode 0 
04-14 03:02:18.735: I/ActivityManager(2382): Displayed bcs421.muhammadqumail.hwk.gradeapp.presentation/.MainActivity: +1s411ms 
04-14 03:02:21.175: I/ActivityManager(2382): START u0 {cmp=bcs421.muhammadqumail.hwk.gradeapp.presentation/.GradeListActivity (has extras)} from pid 3627 
04-14 03:02:21.405: D/dalvikvm(3627): GC_FOR_ALLOC freed 88K, 7% free 2846K/3056K, paused 36ms, total 37ms 
04-14 03:02:21.405: I/dalvikvm-heap(3627): Grow heap (frag case) to 3.501MB for 635812-byte allocation 
04-14 03:02:21.475: D/dalvikvm(3627): GC_FOR_ALLOC freed 1K, 6% free 3466K/3680K, paused 60ms, total 60ms 
04-14 03:02:21.535: D/dalvikvm(3627): GC_CONCURRENT freed 2K, 6% free 3475K/3680K, paused 6ms+23ms, total 64ms 
04-14 03:02:21.705: E/SurfaceFlinger(37): ro.sf.lcd_density must be defined as a build property 
04-14 03:02:21.725: W/EGL_emulation(3627): eglSurfaceAttrib not implemented 
04-14 03:02:21.955: I/ActivityManager(2382): Displayed bcs421.muhammadqumail.hwk.gradeapp.presentation/.GradeListActivity: +737ms 
04-14 03:02:24.255: I/InputReader(2382): Reconfiguring input devices. changes=0x00000004 
04-14 03:02:24.255: I/InputReader(2382): Device reconfigured: id=0, name='qwerty2', size 480x800, orientation 1, mode 1, display id 0 
04-14 03:02:24.265: I/ActivityManager(2382): Config changes=1480 {1.0 310mcc260mnc en_US ldltr sw320dp w491dp h294dp 240dpi nrml land finger qwerty/v/v -nav/h s.15} 
04-14 03:02:24.565: D/dalvikvm(2947): GC_FOR_ALLOC freed 8933K, 65% free 4966K/14064K, paused 100ms, total 105ms 
04-14 03:02:24.585: I/dalvikvm-heap(2947): Grow heap (frag case) to 11.078MB for 6410576-byte allocation 
04-14 03:02:24.695: D/dalvikvm(2947): GC_FOR_ALLOC freed 260K, 23% free 10965K/14064K, paused 109ms, total 110ms 
04-14 03:02:24.922: D/dalvikvm(3627): GC_FOR_ALLOC freed 36K, 5% free 3683K/3840K, paused 152ms, total 199ms 
04-14 03:02:24.945: I/dalvikvm-heap(3627): Grow heap (frag case) to 4.319MB for 635812-byte allocation 
04-14 03:02:25.005: D/dalvikvm(2947): GC_CONCURRENT freed <1K, 23% free 10966K/14064K, paused 5ms+154ms, total 313ms 
04-14 03:02:25.085: D/dalvikvm(3627): GC_CONCURRENT freed 8K, 4% free 4296K/4464K, paused 79ms+5ms, total 143ms 
04-14 03:02:25.085: D/dalvikvm(3627): WAIT_FOR_CONCURRENT_GC blocked 64ms 
04-14 03:02:25.556: D/AndroidRuntime(3627): Shutting down VM 
04-14 03:02:25.556: W/dalvikvm(3627): threadid=1: thread exiting with uncaught exception (group=0x40a71930) 
04-14 03:02:25.606: E/AndroidRuntime(3627): FATAL EXCEPTION: main 
04-14 03:02:25.606: E/AndroidRuntime(3627): java.lang.RuntimeException: Unable to start activity ComponentInfo{bcs421.muhammadqumail.hwk.gradeapp.presentation/bcs421.muhammadqumail.hwk.gradeapp.presentation.GradeListActivity}: java.lang.NullPointerException 
04-14 03:02:25.606: E/AndroidRuntime(3627):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180) 
04-14 03:02:25.606: E/AndroidRuntime(3627):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230) 
04-14 03:02:25.606: E/AndroidRuntime(3627):  at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:3692) 
04-14 03:02:25.606: E/AndroidRuntime(3627):  at android.app.ActivityThread.access$700(ActivityThread.java:141) 
04-14 03:02:25.606: E/AndroidRuntime(3627):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1240) 
04-14 03:02:25.606: E/AndroidRuntime(3627):  at android.os.Handler.dispatchMessage(Handler.java:99) 
04-14 03:02:25.606: E/AndroidRuntime(3627):  at android.os.Looper.loop(Looper.java:137) 
04-14 03:02:25.606: E/AndroidRuntime(3627):  at android.app.ActivityThread.main(ActivityThread.java:5041) 
04-14 03:02:25.606: E/AndroidRuntime(3627):  at java.lang.reflect.Method.invokeNative(Native Method) 
04-14 03:02:25.606: E/AndroidRuntime(3627):  at java.lang.reflect.Method.invoke(Method.java:511) 
04-14 03:02:25.606: E/AndroidRuntime(3627):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 
04-14 03:02:25.606: E/AndroidRuntime(3627):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 
04-14 03:02:25.606: E/AndroidRuntime(3627):  at dalvik.system.NativeStart.main(Native Method) 
04-14 03:02:25.606: E/AndroidRuntime(3627): Caused by: java.lang.NullPointerException 
04-14 03:02:25.606: E/AndroidRuntime(3627):  at bcs421.muhammadqumail.hwk.gradeapp.presentation.GradeDetailFragment.onCreateView(GradeDetailFragment.java:30) 
04-14 03:02:25.606: E/AndroidRuntime(3627):  at android.app.Fragment.performCreateView(Fragment.java:1695) 
04-14 03:02:25.606: E/AndroidRuntime(3627):  at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:885) 
04-14 03:02:25.606: E/AndroidRuntime(3627):  at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1057) 
04-14 03:02:25.606: E/AndroidRuntime(3627):  at android.app.BackStackRecord.run(BackStackRecord.java:682) 
04-14 03:02:25.606: E/AndroidRuntime(3627):  at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1435) 
04-14 03:02:25.606: E/AndroidRuntime(3627):  at android.app.Activity.performStart(Activity.java:5113) 
04-14 03:02:25.606: E/AndroidRuntime(3627):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2153) 
04-14 03:02:25.606: E/AndroidRuntime(3627):  ... 12 more 
04-14 03:02:25.655: W/ActivityManager(2382): Force finishing activity bcs421.muhammadqumail.hwk.gradeapp.presentation/.GradeListActivity 
04-14 03:02:25.725: D/dalvikvm(2947): GC_FOR_ALLOC freed <1K, 23% free 10966K/14064K, paused 150ms, total 150ms 
04-14 03:02:25.745: I/dalvikvm-heap(2947): Grow heap (frag case) to 13.309MB for 2606048-byte allocation 
04-14 03:02:25.835: D/dalvikvm(2947): GC_CONCURRENT freed 0K, 4% free 13511K/14064K, paused 5ms+5ms, total 96ms 
04-14 03:02:25.835: D/dalvikvm(2947): WAIT_FOR_CONCURRENT_GC blocked 89ms 
04-14 03:02:25.965: D/dalvikvm(2382): GC_FOR_ALLOC freed 687K, 23% free 7523K/9668K, paused 239ms, total 250ms 
04-14 03:02:25.975: I/dalvikvm-heap(2382): Grow heap (frag case) to 8.074MB for 635812-byte allocation 
04-14 03:02:26.075: D/dalvikvm(2382): GC_FOR_ALLOC freed 20K, 22% free 8124K/10292K, paused 96ms, total 96ms 
04-14 03:02:26.195: W/WindowManager(2382): Window freeze timeout expired. 
04-14 03:02:26.195: W/WindowManager(2382): Force clearing orientation change: Window{4108cac8 u0 NavigationBar} 
04-14 03:02:26.195: W/WindowManager(2382): Force clearing orientation change: Window{40ec49f0 u0 StatusBar} 
04-14 03:02:26.195: W/WindowManager(2382): Force clearing orientation change: Window{412dab18 u0 com.android.systemui.ImageWallpaper} 
04-14 03:02:26.475: W/ActivityManager(2382): Activity pause timeout for ActivityRecord{40f38d20 u0 bcs421.muhammadqumail.hwk.gradeapp.presentation/.GradeListActivity} 
04-14 03:02:26.715: E/SurfaceFlinger(37): ro.sf.lcd_density must be defined as a build property 
04-14 03:02:26.725: I/Choreographer(2947): Skipped 35 frames! The application may be doing too much work on its main thread. 
04-14 03:02:27.845: I/Process(3627): Sending signal. PID: 3627 SIG: 9 
04-14 03:02:27.865: I/WindowState(2382): WIN DEATH: Window{40f5adc8 u0 bcs421.muhammadqumail.hwk.gradeapp.presentation/bcs421.muhammadqumail.hwk.gradeapp.presentation.MainActivity} 
04-14 03:02:27.865: I/ActivityManager(2382): Process bcs421.muhammadqumail.hwk.gradeapp.presentation (pid 3627) has died. 
04-14 03:02:27.905: D/dalvikvm(3643): Not late-enabling CheckJNI (already on) 
04-14 03:02:27.935: I/ActivityManager(2382): Start proc bcs421.muhammadqumail.hwk.gradeapp.presentation for activity bcs421.muhammadqumail.hwk.gradeapp.presentation/.MainActivity: pid=3643 uid=10048 gids={50048, 1028} 
04-14 03:02:28.246: E/SurfaceFlinger(37): ro.sf.lcd_density must be defined as a build property 
04-14 03:02:28.285: E/Trace(3643): error opening trace file: No such file or directory (2) 
04-14 03:02:28.945: D/dalvikvm(3643): GC_CONCURRENT freed 78K, 7% free 2710K/2908K, paused 6ms+4ms, total 83ms 
04-14 03:02:28.995: E/SurfaceFlinger(37): ro.sf.lcd_density must be defined as a build property 
04-14 03:02:29.015: D/libEGL(3643): loaded /system/lib/egl/libEGL_emulation.so 
04-14 03:02:29.015: D/(3643): HostConnection::get() New Host Connection established 0x2a154410, tid 3643 
04-14 03:02:29.025: D/libEGL(3643): loaded /system/lib/egl/libGLESv1_CM_emulation.so 
04-14 03:02:29.035: D/libEGL(3643): loaded /system/lib/egl/libGLESv2_emulation.so 
04-14 03:02:29.075: W/EGL_emulation(3643): eglSurfaceAttrib not implemented 
04-14 03:02:29.085: D/OpenGLRenderer(3643): Enabling debug mode 0 
04-14 03:02:29.115: W/InputMethodManagerService(2382): Got RemoteException sending setActive(false) notification to pid 3627 uid 10048 
04-14 03:02:29.305: I/ActivityManager(2382): Displayed bcs421.muhammadqumail.hwk.gradeapp.presentation/.MainActivity: +1s422ms 
04-14 03:02:30.685: D/dalvikvm(2382): GC_EXPLICIT freed 256K, 21% free 8172K/10292K, paused 13ms+12ms, total 135ms 
04-14 03:02:38.185: D/ExchangeService(2762): Received deviceId from Email app: null 
04-14 03:02:38.185: D/ExchangeService(2762): !!! deviceId unknown; stopping self and retrying 
04-14 03:02:43.235: D/ExchangeService(2762): !!! EAS ExchangeService, onStartCommand, startingUp = false, running = false 
04-14 03:02:43.255: W/ActivityManager(2382): Unable to start service Intent { act=com.android.email.ACCOUNT_INTENT } U=0: not found 
04-14 03:02:43.255: D/ExchangeService(2762): !!! Email application not found; stopping self 
04-14 03:02:43.265: W/ActivityManager(2382): Unable to start service Intent { act=com.android.email.ACCOUNT_INTENT } U=0: not found 
04-14 03:02:43.285: E/ActivityThread(2762): Service com.android.exchange.ExchangeService has leaked ServiceConnection [email protected]41668 that was originally bound here 
04-14 03:02:43.285: E/ActivityThread(2762): android.app.ServiceConnectionLeaked: Service com.android.exchange.ExchangeService has leaked ServiceConnection [email protected]41668 that was originally bound here 
04-14 03:02:43.285: E/ActivityThread(2762):  at android.app.LoadedApk$ServiceDispatcher.<init>(LoadedApk.java:969) 
04-14 03:02:43.285: E/ActivityThread(2762):  at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863) 
04-14 03:02:43.285: E/ActivityThread(2762):  at android.app.ContextImpl.bindService(ContextImpl.java:1418) 
04-14 03:02:43.285: E/ActivityThread(2762):  at android.app.ContextImpl.bindService(ContextImpl.java:1407) 
04-14 03:02:43.285: E/ActivityThread(2762):  at android.content.ContextWrapper.bindService(ContextWrapper.java:473) 
04-14 03:02:43.285: E/ActivityThread(2762):  at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157) 
04-14 03:02:43.285: E/ActivityThread(2762):  at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145) 
04-14 03:02:43.285: E/ActivityThread(2762):  at com.android.emailcommon.service.ServiceProxy.test(ServiceProxy.java:191) 
04-14 03:02:43.285: E/ActivityThread(2762):  at com.android.exchange.ExchangeService$7.run(ExchangeService.java:1850) 
04-14 03:02:43.285: E/ActivityThread(2762):  at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:551) 
04-14 03:02:43.285: E/ActivityThread(2762):  at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:549) 
04-14 03:02:43.285: E/ActivityThread(2762):  at android.os.AsyncTask$2.call(AsyncTask.java:287) 
04-14 03:02:43.285: E/ActivityThread(2762):  at java.util.concurrent.FutureTask.run(FutureTask.java:234) 
04-14 03:02:43.285: E/ActivityThread(2762):  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080) 
04-14 03:02:43.285: E/ActivityThread(2762):  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573) 
04-14 03:02:43.285: E/ActivityThread(2762):  at java.lang.Thread.run(Thread.java:856) 
04-14 03:02:43.285: E/StrictMode(2762): null 
04-14 03:02:43.285: E/StrictMode(2762): android.app.ServiceConnectionLeaked: Service com.android.exchange.ExchangeService has leaked ServiceConnection [email protected]41668 that was originally bound here 
04-14 03:02:43.285: E/StrictMode(2762):  at android.app.LoadedApk$ServiceDispatcher.<init>(LoadedApk.java:969) 
04-14 03:02:43.285: E/StrictMode(2762):  at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863) 
04-14 03:02:43.285: E/StrictMode(2762):  at android.app.ContextImpl.bindService(ContextImpl.java:1418) 
04-14 03:02:43.285: E/StrictMode(2762):  at android.app.ContextImpl.bindService(ContextImpl.java:1407) 
04-14 03:02:43.285: E/StrictMode(2762):  at android.content.ContextWrapper.bindService(ContextWrapper.java:473) 
04-14 03:02:43.285: E/StrictMode(2762):  at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157) 
04-14 03:02:43.285: E/StrictMode(2762):  at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145) 
04-14 03:02:43.285: E/StrictMode(2762):  at com.android.emailcommon.service.ServiceProxy.test(ServiceProxy.java:191) 
04-14 03:02:43.285: E/StrictMode(2762):  at com.android.exchange.ExchangeService$7.run(ExchangeService.java:1850) 
04-14 03:02:43.285: E/StrictMode(2762):  at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:551) 
04-14 03:02:43.285: E/StrictMode(2762):  at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:549) 
04-14 03:02:43.285: E/StrictMode(2762):  at android.os.AsyncTask$2.call(AsyncTask.java:287) 
04-14 03:02:43.285: E/StrictMode(2762):  at java.util.concurrent.FutureTask.run(FutureTask.java:234) 
04-14 03:02:43.285: E/StrictMode(2762):  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080) 
04-14 03:02:43.285: E/StrictMode(2762):  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573) 
04-14 03:02:43.285: E/StrictMode(2762):  at java.lang.Thread.run(Thread.java:856) 
04-14 03:02:43.295: W/ActivityManager(2382): Unbind failed: could not find connection for [email protected] 
04-14 03:02:43.315: E/ActivityThread(2762): Service com.android.exchange.ExchangeService has leaked ServiceConnection [email protected]e7880 that was originally bound here 
04-14 03:02:43.315: E/ActivityThread(2762): android.app.ServiceConnectionLeaked: Service com.android.exchange.ExchangeService has leaked ServiceConnection [email protected]e7880 that was originally bound here 
04-14 03:02:43.315: E/ActivityThread(2762):  at android.app.LoadedApk$ServiceDispatcher.<init>(LoadedApk.java:969) 
04-14 03:02:43.315: E/ActivityThread(2762):  at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863) 
04-14 03:02:43.315: E/ActivityThread(2762):  at android.app.ContextImpl.bindService(ContextImpl.java:1418) 
04-14 03:02:43.315: E/ActivityThread(2762):  at android.app.ContextImpl.bindService(ContextImpl.java:1407) 
04-14 03:02:43.315: E/ActivityThread(2762):  at android.content.ContextWrapper.bindService(ContextWrapper.java:473) 
04-14 03:02:43.315: E/ActivityThread(2762):  at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157) 
04-14 03:02:43.315: E/ActivityThread(2762):  at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145) 
04-14 03:02:43.315: E/ActivityThread(2762):  at com.android.emailcommon.service.AccountServiceProxy.getDeviceId(AccountServiceProxy.java:116) 
04-14 03:02:43.315: E/ActivityThread(2762):  at com.android.exchange.ExchangeService.getDeviceId(ExchangeService.java:1249) 
04-14 03:02:43.315: E/ActivityThread(2762):  at com.android.exchange.ExchangeService$7.run(ExchangeService.java:1856) 
04-14 03:02:43.315: E/ActivityThread(2762):  at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:551) 
04-14 03:02:43.315: E/ActivityThread(2762):  at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:549) 
04-14 03:02:43.315: E/ActivityThread(2762):  at android.os.AsyncTask$2.call(AsyncTask.java:287) 
04-14 03:02:43.315: E/ActivityThread(2762):  at java.util.concurrent.FutureTask.run(FutureTask.java:234) 
04-14 03:02:43.315: E/ActivityThread(2762):  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)

источник

2015-04-14 Muhammad Qumail

Элемент stacktrace ведет к вашему 'GradeDetailFragment', поэтому его код' onCreateView() поможет. – AndroidEx

Кодовая строка - строка 30 в logcat? напишите комментарий '// Line 30' сразу после строки кода. – Youngjae

Можете ли вы уточнить, есть ли у вас проблема или нет? –

активность обычно не является доступным для фрагмента в onCreateView(). Попробуйте прокручивать:

@Override 
    public void onAttach(Activity activity) { 
     super.onAttach(activity); 

     Intent i = activity.getIntent(); 

     gc = (GradeCollection) i.getExtras().getSerializable("OriginalGradeCollectionInstance"); 
     position = (Integer) i.getExtras().getSerializable("position"); 

     textCategory.setText(gc.GetItem(position).getCategory() + ""); 
     textNumber.setText(gc.GetItem(position).getNumber() + ""); 
     String grade = "" + gc.GetItem(position).getGrade(); 
     textGrade.setText(grade); 
     textDescription.setText(gc.GetItem(position).getDescription() + ""); 
    }

Удалить соответствующие строки в onCreateView(), а также сделать все EditText S - поля фрагмента.

источник

2015-04-14 03:04:23 AndroidEx

Я сделал то, что вы просили меня, и он по-прежнему дает мне исключение nullpointer. Причина, по которой я думаю, состоит в том, что когда в ландшафтном режиме второй фрагмент (деталь каждого элемента в списке) пуст. Он заполняется, когда элемент щелкнут по списку –

@MuhammadQumail в порядке, то, пожалуйста, укажите нам конкретную строку в соответствии со стеком, который создает NPE. – AndroidEx

Я только что обновил GradeListFragment. java и добавил комментарий, где я думаю, что это вызывает у меня NPE. btw я также проверил для не null, и он все еще дал мне ошибку, поэтому я прокомментировал оператор if –

При изменении ориентации Android воссоздает активность, но не повторяет намерение, которое первоначально начало свою деятельность. Поэтому, когда вы поворачиваете экран, getIntent() возвращает null, а следующий код затем бросает NullPointerException.

Так, чтобы решить проблему, необходимо инициализировать фрагмент из намерений данных только тогда, когда она создается заново, которое можно определить путем проверки savedInstanceState является null.

if (savedInstanceState == null) { 
    Activity a = getActivity(); 
    Intent i = a.getIntent(); 
    gc = (GradeCollection) i.getExtras() 
          .getSerializable("OriginalGradeCollectionInstance"); 
    position = (Integer) i.getExtras().getSerializable("position"); 
}

Но это означает, что после поворота ваш фрагмент не инициализироваться корректно с данными о Намерение он получил раньше. Итак, чтобы это произошло, вам необходимо сэкономить GradeCollection и position до состояния экземпляра пучка перед тем, как Android уничтожит ваш фрагмент.

@Override 
public void onSaveInstanceState(Bundle outState) { 
    super.onSaveInstanceState(outState); 
    outState.putInt("position", position); 
    outState.putSerializable("grades", gc); 
}

Тогда просто восстановить фрагментировать состояние в onCreateView() в

if (savedInstanceState == null) { 
    Activity a = getActivity(); 
    Intent i = a.getIntent(); 
    gc = (GradeCollection) i.getExtras() 
          .getSerializable("OriginalGradeCollectionInstance"); 
    position = (Integer) i.getExtras().getSerializable("position"); 
} else { 
    position = savedInstanceState.getInt("position"); 
    gc = (GradeCollection) savedInstanceState.getSerializable("grades"); 
}

Пожалуйста, обратите внимание, что вы должны сделать свой GradeCollection (и класс любой не-обертка пользовательских элементов) осуществлять Serializable.

источник

2015-04-14 03:31:20

Мое приложение падает, когда я иду в ландшафтном режиме

ответ

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