@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
mMailPrefs = MailPrefs.get(getActivity());
// Set the shared prefs name to use prefs auto-persist behavior by default.
// Any pref more complex than the default (say, involving migration), should set
// "persistent=false" in the XML and manually handle preference initialization and change.
getPreferenceManager().setSharedPreferencesName(mMailPrefs.getSharedPreferencesName());
addPreferencesFromResource(R.xml.general_preferences);
mAutoAdvance = (ListPreference) findPreference(AUTO_ADVANCE_WIDGET);
}
/**
* Reorders the specified {@link Menu}, taking into account the user's Archive/Delete preference.
*/
public static void reorderMenu(
final Context context, final Account account, final Menu menu, final int maxItems) {
final String removalAction =
MailPrefs.get(context)
.getRemovalAction(account.supportsCapability(AccountCapabilities.ARCHIVE));
final boolean showArchive =
MailPrefs.RemovalActions.ARCHIVE.equals(removalAction)
|| MailPrefs.RemovalActions.ARCHIVE_AND_DELETE.equals(removalAction);
final boolean showDelete =
MailPrefs.RemovalActions.DELETE.equals(removalAction)
|| MailPrefs.RemovalActions.ARCHIVE_AND_DELETE.equals(removalAction);
// Do a first pass to extract necessary information on what is safe to display
boolean archiveVisibleEnabled = false;
boolean deleteVisibleEnabled = false;
for (int i = 0; i < menu.size(); i++) {
final MenuItem menuItem = menu.getItem(i);
final int itemId = menuItem.getItemId();
final boolean visible = menuItem.isVisible();
final boolean enabled = menuItem.isEnabled();
if (itemId == R.id.archive || itemId == R.id.remove_folder) {
archiveVisibleEnabled |= (visible & enabled);
} else if (itemId == R.id.delete || itemId == R.id.discard_drafts) {
deleteVisibleEnabled |= (visible & enabled);
}
}
int actionItems = 0;
for (int i = 0; i < menu.size(); i++) {
final MenuItem menuItem = menu.getItem(i);
final int itemId = menuItem.getItemId();
// We only want to promote it if it's visible and has an icon
if (menuItem.isVisible() && menuItem.getIcon() != null) {
if (itemId == R.id.archive || itemId == R.id.remove_folder) {
/*
* If this is disabled, and we want to show both archive and delete, we will
* hide archive (rather than showing it disabled), and take up one of our
* spaces. If we only want to show archive, we'll hide it, but not take up
* a space.
*/
if (!menuItem.isEnabled() && showArchive) {
menuItem.setVisible(false);
if (showDelete) {
actionItems++;
}
} else {
/*
* We show this if the following are all true:
* 1. The user wants to display archive, or delete is not visible
* 2. We have room for it
*/
if ((showArchive || !deleteVisibleEnabled) && actionItems < maxItems) {
menuItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
actionItems++;
}
}
} else if (itemId == R.id.delete || itemId == R.id.discard_drafts) {
/*
* We show this if the following are all true:
* 1. The user wants to display delete, or archive is not visible
* 2. We have room for it
*/
if ((showDelete || !archiveVisibleEnabled) && actionItems < maxItems) {
menuItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
actionItems++;
}
} else if (itemId == R.id.change_folders) {
final boolean showChangeFolder =
account.supportsCapability(AccountCapabilities.MULTIPLE_FOLDERS_PER_CONV);
menuItem.setVisible(showChangeFolder);
if (showChangeFolder && actionItems < maxItems) {
menuItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
actionItems++;
}
} else if (itemId == R.id.search) {
menuItem.setShowAsAction(
MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW);
actionItems++;
} else {
if (actionItems < maxItems) {
menuItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
actionItems++;
}
}
}
}
}