ArrayAdapter in Fragment - Android
Bekomme ich eine Fehlermeldung, ich weiß nicht, warum. Ich bin ListView füllen mit array-adapter von string-fragment. Ich bin mit diesem fragment als Haupt-Bildschirm angezeigt werden-Haupttätigkeit
Das ist mein code
public class HomePage extends Fragment {
private ListView lvHomePage;
private String[] items;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_home_page, container, false);
items = getActivity().getResources().getStringArray(R.array.test);
lvHomePage = (ListView) getActivity().findViewById(R.id.lvHomePage);
lvHomePage.setAdapter(new ArrayAdapter<String>(getActivity().getApplicationContext(),
android.R.layout.simple_list_item_1 , items));
return view;
}
}
Bekomme ich diesen output-error:
09-18 21:07:27.315: E/AndroidRuntime(3839): FATAL EXCEPTION: main
09-18 21:07:27.315: E/AndroidRuntime(3839): Process: com.kiko.bmgu.crnobelo, PID: 3839
09-18 21:07:27.315: E/AndroidRuntime(3839): java.lang.RuntimeException: Unable to start activity ComponentInfo com.kiko.bmgu.crnobelo/com.kiko.bmgu.crnobelo.activities.MainActivity}: java.lang.NullPointerException
09-18 21:07:27.315: E/AndroidRuntime(3839): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)\
09-18 21:07:27.315: E/AndroidRuntime(3839): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
09-18 21:07:27.315: E/AndroidRuntime(3839): at android.app.ActivityThread.access$800(ActivityThread.java:135)
09-18 21:07:27.315: E/AndroidRuntime(3839): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
09-18 21:07:27.315: E/AndroidRuntime(3839): at android.os.Handler.dispatchMessage(Handler.java:102)
09-18 21:07:27.315: E/AndroidRuntime(3839): at android.os.Looper.loop(Looper.java:136)
09-18 21:07:27.315: E/AndroidRuntime(3839): at android.app.ActivityThread.main(ActivityThread.java:5017)
09-18 21:07:27.315: E/AndroidRuntime(3839): at java.lang.reflect.Method.invokeNative(Native Method)
09-18 21:07:27.315: E/AndroidRuntime(3839): at java.lang.reflect.Method.invoke(Method.java:515)
09-18 21:07:27.315: E/AndroidRuntime(3839): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
09-18 21:07:27.315: E/AndroidRuntime(3839): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
09-18 21:07:27.315: E/AndroidRuntime(3839): at dalvik.system.NativeStart.main(Naive Method)
09-18 21:07:27.315: E/AndroidRuntime(3839): Caused by: java.lang.NullPointerException
09-18 21:07:27.315: E/AndroidRuntime(3839): at com.kiko.bmgu.fragments.HomePage.onCreateView(HomePage.java:25)
09-18 21:07:27.315: E/AndroidRuntime(3839): at android.app.Fragment.performCreateView(Fragment.java:1700)
09-18 21:07:27.315: E/AndroidRuntime(3839): at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:890)
09-18 21:07:27.315: E/AndroidRuntime(3839): at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1062)
09-18 21:07:27.315: E/AndroidRuntime(3839): at android.app.BackStackRecord.run(BackStackRecord.java:684)
09-18 21:07:27.315: E/AndroidRuntime(3839): at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1447)
09-18 21:07:27.315: E/AndroidRuntime(3839): at android.app.Activity.performStart(Activity.java:5240)
09-18 21:07:27.315: E/AndroidRuntime(3839): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2168)
09-18 21:07:27.315: E/AndroidRuntime(3839): ... 11 more
InformationsquelleAutor KiKo | 2014-09-18
Schreibe einen Kommentar Antworten abbrechen
Du musst angemeldet sein, um einen Kommentar abzugeben.
lvHomePage
muss null sein. VerwendenlvHomePage = (ListView) view.findViewById(R.id.lvHomePage);
statt.InformationsquelleAutor mbmc
Diesem Weg versuchen
InformationsquelleAutor ArmDroid
Das problem ist innerhalb
lvHomePage = (ListView) getActivity().findViewById(R.id.lvHomePage);
das ist falsch, Sie sollten das root-view ist
view
nicht die Aktivitätso sollte es sein, wie diese
lvHomePage = (ListView) view.findViewById(R.id.lvHomePage);
InformationsquelleAutor Kiloreux