"Java.lang.ILLEGALSTATEException: Aktivität wurde zerstört", nachdem die Fragmentität auf Android wieder aufgenommen wur ⇐ Android

[Anonymous]

Ich verwende diesen Ansatz: Separate Rückstapel für jede Registerkarte in Android unter Verwendung von Fragmenten < /p>

Ich versuche, Fragment aus dem ersten Fragment zu pushen, nachdem die Fragmentaktivität diese Aktion wieder aufgenommen hat. Die „Aktivität wurde zerstört“. Wenn es zum ersten Mal das Push-Fragment gut funktioniert, funktioniert es jedoch, aber wenn ich diese Fragmentaktivität innehalt (minimiere die Anwendung), öffnen Sie sie erneut und versuchen Sie dann, das Fragment zu pushen, den Fehler. Ich weiß, dass diese Frage bereits viele Male gestellt wird, aber ich konnte keine Lösung daraus erhalten.

Code: Select all

02-05 11:51:01.889: E/AndroidRuntime(379): FATAL EXCEPTION: main
02-05 11:51:01.889: E/AndroidRuntime(379): java.lang.IllegalStateException: Activity has been destroyed
02-05 11:51:01.889: E/AndroidRuntime(379):     at android.support.v4.app.FragmentManagerImpl.enqueueAction(FragmentManager.java:1365)
02-05 11:51:01.889: E/AndroidRuntime(379):     at android.support.v4.app.BackStackRecord.commitInternal(BackStackRecord.java:595)
02-05 11:51:01.889: E/AndroidRuntime(379):     at android.support.v4.app.BackStackRecord.commitAllowingStateLoss(BackStackRecord.java:578)
02-05 11:51:01.889: E/AndroidRuntime(379):     at com.app.main.AppMainTabActivity.pushFragments(AppMainTabActivity.java:650)
02-05 11:51:01.889: E/AndroidRuntime(379):     at com.app.home.Home$ExpandableListAdapter$1.onClick(Home.java:530)
02-05 11:51:01.889: E/AndroidRuntime(379):     at android.view.View.performClick(View.java:2408)
02-05 11:51:01.889: E/AndroidRuntime(379):     at android.view.View$PerformClick.run(View.java:8816)
02-05 11:51:01.889: E/AndroidRuntime(379):     at android.os.Handler.handleCallback(Handler.java:587)
02-05 11:51:01.889: E/AndroidRuntime(379):     at android.os.Handler.dispatchMessage(Handler.java:92)
02-05 11:51:01.889: E/AndroidRuntime(379):     at android.os.Looper.loop(Looper.java:123)
02-05 11:51:01.889: E/AndroidRuntime(379):     at android.app.ActivityThread.main(ActivityThread.java:4627)
02-05 11:51:01.889: E/AndroidRuntime(379):     at java.lang.reflect.Method.invokeNative(Native Method)
02-05 11:51:01.889: E/AndroidRuntime(379):     at java.lang.reflect.Method.invoke(Method.java:521)
02-05 11:51:01.889: E/AndroidRuntime(379):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
02-05 11:51:01.889: E/AndroidRuntime(379):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
02-05 11:51:01.889: E/AndroidRuntime(379):     at dalvik.system.NativeStart.main(Native Method)
< /code>

Ich klicke im ersten Fragment, das das zweite Fragment drückt. Ich zeige den Fehler in BaseexpandablelistAdapter.public void pushFragments(String tag, Fragment fragment, boolean shouldAnimate, boolean shouldAdd) {
if (shouldAdd) {
mStacks.get(tag).push(fragment);
}

if (!isFinishing()) {
FragmentManager manager = getSupportFragmentManager();
FragmentTransaction ft = manager.beginTransaction();
if (shouldAnimate)
ft.setCustomAnimations(R.anim.slide_in_right, R.anim.slide_out_left);
ft.replace(R.id.realtabcontent, fragment);
ft.commit();
}
else {
FragmentManager manager = getSupportFragmentManager();
FragmentTransaction ft = manager.beginTransaction();
if (shouldAnimate)
ft.setCustomAnimations(R.anim.slide_in_right, R.anim.slide_out_left);
ft.replace(R.id.realtabcontent, fragment);
ft.addToBackStack(null);
ft.commitAllowingStateLoss();//error shows here also.
}
}

public void popFragments() {
/*if (!isFinishing()) { }*/
Fragment fragment = mStacks.get(mCurrentTab).elementAt(mStacks.get(mCurrentTab).size() - 2);
/*pop current fragment from stack..  */
mStacks.get(mCurrentTab).pop();

FragmentManager manager = getSupportFragmentManager();
FragmentTransaction ft = manager.beginTransaction();
ft.setCustomAnimations(R.anim.slide_in_left, R.anim.slide_out_right);
ft.replace(R.id.realtabcontent, fragment);
ft.commit();
}
< /code>

 Home -Fragment < /strong> < /p>

public class Firstfragment extends BaseFragment
{
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
}

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

}

private void setupActionBar() {
// TODO Auto-generated method stub

actionBar = getSherlockActivity().getSupportActionBar();

actionBar.setDisplayHomeAsUpEnabled(false);

actionBar.setDisplayShowCustomEnabled(true);
actionBar.setDisplayShowHomeEnabled(false);
actionBar.setDisplayShowTitleEnabled(false);
View cView = getSherlockActivity().getLayoutInflater().inflate(R.layout.actionbarbutton, null);
final TextView cTitletext = (TextView) cView.findViewById(R.id.action_title_home);
final ImageButton cSection_Menu = (ImageButton) cView.findViewById(R.id.imgbtn_1);

actionBar.setCustomView(cView);
cSection_Menu.setImageResource(R.drawable.section);
cSection_Menu.setVisibility(View.VISIBLE);

cTitletext.setVisibility(View.VISIBLE);
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,    Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.home_newspaper_list, container,false);
lv = (ExpandableListView) view.findViewById(R.id.newspapers_expandable);

setHasOptionsMenu(true);
return view;
}

@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
flag = true;
outState.putBoolean("flag", flag);
}

@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
}

@Override
public void onPause() {
super.onPause();
flag = true;
AppConstants.isFromHomeDetailView = false;
index = lv.getFirstVisiblePosition();
}

@Override
public void onStop() {
// TODO Auto-generated method stub
super.onStop();
}

@Override
public void onResume() {
super.onResume();
lv.setSelectionFromTop(index, 0);

System.out.println(" onResume Started > "+flag);
setupActionBar();
}

@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);

HashMap nlist = ma.newspaper_list;
ArrayList languagelist = ma.languagelist;

expListAdapter = new ExpandableListAdapter(getActivity(), languagelist, nlist);

lv.setAdapter(expListAdapter);
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
return false;
}

public class ExpandableListAdapter extends BaseExpandableListAdapter
{

/* methods for BaseExpandableListAdapterlike getchildcount() etc. */

@Override
public View getChildView(final int groupPosition, final int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
View view = null;
view.setOnClickListener(new OnClickListener() {
@Override
public void onClick(final View v) {
secondfragment nl = new secondfragment ();
mActivity.pushFragments(AppConstants.TAB_A,nl,true, true);//****error on that line after resuming activity**.**
}
});
return view;
}
}

}