private InputMethodSubtype[] getSubtypes() {
final PreferenceGroup group = getPreferenceScreen();
final ArrayList<InputMethodSubtype> subtypes = new ArrayList<InputMethodSubtype>();
final int count = group.getPreferenceCount();
for (int i = 0; i < count; i++) {
final Preference pref = group.getPreference(i);
if (pref instanceof SubtypePreference) {
final SubtypePreference subtypePref = (SubtypePreference) pref;
// We should not save newly adding subtype to preference because it is incomplete.
if (subtypePref.isIncomplete()) continue;
subtypes.add(subtypePref.getSubtype());
}
}
return subtypes.toArray(new InputMethodSubtype[subtypes.size()]);
}
@Override
public void onAddPressed(SubtypePreference subtypePref) {
mIsAddingNewSubtype = false;
final InputMethodSubtype subtype = subtypePref.getSubtype();
if (findDuplicatedSubtype(subtype) == null) {
ImfUtils.setAdditionalInputMethodSubtypes(getActivity(), getSubtypes());
mSubtypePreferenceKeyForSubtypeEnabler = subtypePref.getKey();
mSubtypeEnablerNotificationDialog = createDialog(subtypePref);
mSubtypeEnablerNotificationDialog.show();
return;
}
// Newly added subtype is duplicated.
final PreferenceGroup group = getPreferenceScreen();
group.removePreference(subtypePref);
showSubtypeAlreadyExistsToast(subtype);
}
@Override
public void onSavePressed(SubtypePreference subtypePref) {
final InputMethodSubtype subtype = subtypePref.getSubtype();
if (!subtypePref.hasBeenModified()) {
return;
}
if (findDuplicatedSubtype(subtype) == null) {
ImfUtils.setAdditionalInputMethodSubtypes(getActivity(), getSubtypes());
return;
}
// Saved subtype is duplicated.
final PreferenceGroup group = getPreferenceScreen();
group.removePreference(subtypePref);
subtypePref.revert();
group.addPreference(subtypePref);
showSubtypeAlreadyExistsToast(subtype);
}