Sto utilizzando ActionBarSherlock e ViewPagerIndicator per visualizzare Frammenti come schede. Uno di questi frammenti aggiunge elementi da ActionBar:Arresto anomalo dopo l'aggiunta di elementi al menu delle opzioni della barra azioni da Frammento seguito dal cambio di orientamento
private String[] mapNames;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
// init an String array `mapNames` which is used when populating submenu
// ...
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.fragment_maps, menu);
SubMenu mapNamesMenu = menu.findItem(R.id.map_names).getSubMenu();
mapNamesMenu.clear();
for (int i=0; i<mapNames.length; i++) {
mapNamesMenu.add(1, i, Menu.NONE, mapNames[i]);
}
super.onCreateOptionsMenu(menu, inflater);
}
e res/menu/fragment_maps.xml
ho
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:id="@+id/map_names"
android:title="Maps"
android:icon="@drawable/maps_32"
android:showAsAction="always|withText">
<menu>
<item android:id="@+id/placeholder_maps" />
</menu>
</item>
</menu>
Tutto funziona bene fino a quando ruoto il mio telefono. Dopo l'orientamento, questo menu diventa inaccessibile (non accade nulla quando si fa clic sull'icona). Quindi se faccio ruotare di nuovo il mio telefono ottengo questo errore:
FATAL EXCEPTION: main
android.view.WindowManager$BadTokenException: Unable to add window -- token null is not valid; is your activity running?
at android.view.ViewRoot.setView(ViewRoot.java:532)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:177)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91)
at android.view.Window$LocalWindowManager.addView(Window.java:424)
at android.widget.PopupWindow.invokePopup(PopupWindow.java:912)
at android.widget.PopupWindow.showAsDropDown(PopupWindow.java:824)
at com.actionbarsherlock.internal.widget.IcsListPopupWindow.show(IcsListPopupWindow.java:226)
at com.actionbarsherlock.internal.view.menu.MenuPopupHelper.tryShow(MenuPopupHelper.java:129)
at com.actionbarsherlock.internal.view.menu.MenuPopupHelper.show(MenuPopupHelper.java:102)
at com.actionbarsherlock.internal.view.menu.ActionMenuPresenter.onSubMenuSelected(ActionMenuPresenter.java:273)
at com.actionbarsherlock.internal.view.menu.MenuBuilder.dispatchSubMenuSelected(MenuBuilder.java:263)
at com.actionbarsherlock.internal.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:892)
at com.actionbarsherlock.internal.view.menu.ActionMenuView.invokeItem(ActionMenuView.java:510)
at com.actionbarsherlock.internal.view.menu.ActionMenuItemView.onClick(ActionMenuItemView.java:145)
at android.view.View.performClick(View.java:2494)
at android.view.View$PerformClick.run(View.java:9122)
at android.os.Handler.handleCallback(Handler.java:587)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3806)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
at dalvik.system.NativeStart.main(Native Method)
Qualche idea su come risolverlo? Sto utilizzando Android 2.3.6
Edit: vedi test repository
tenta di chiamare setHasOptionsMenu (true); da onActivityCreated non da onCreate. – Leonidos
@Leonidos Non ha aiutato – Kuitsi
Problema correlato: https://github.com/JakeWharton/ActionBarSherlock/issues/641 – pixel