@Override
public void onCreatePreferences(Bundle bundle, String s) {
Activity activity = getActivity();
PreferenceScreen screen = getPreferenceManager().createPreferenceScreen(activity);
screen.setTitle(activity.getString(R.string.available_virtual_keyboard_category));
setPreferenceScreen(screen);
mInputMethodSettingValues = InputMethodSettingValuesWrapper.getInstance(activity);
mImm = activity.getSystemService(InputMethodManager.class);
mDpm = activity.getSystemService(DevicePolicyManager.class);
}
@Override
public void onResume() {
super.onResume();
// Refresh internal states in mInputMethodSettingValues to keep the latest
// "InputMethodInfo"s and "InputMethodSubtype"s
mInputMethodSettingValues.refreshAllInputMethodAndSubtypes();
updateInputMethodPreferenceViews();
}
@Override
public void onSaveInputMethodPreference(final InputMethodPreference pref) {
final boolean hasHardwareKeyboard =
getResources().getConfiguration().keyboard == Configuration.KEYBOARD_QWERTY;
InputMethodAndSubtypeUtil.saveInputMethodSubtypeList(
this, getContentResolver(), mImm.getInputMethodList(), hasHardwareKeyboard);
// Update input method settings and preference list.
mInputMethodSettingValues.refreshAllInputMethodAndSubtypes();
for (final InputMethodPreference p : mInputMethodPreferenceList) {
p.updatePreferenceViews();
}
}
private void updateInputMethodPreferenceViews() {
mInputMethodSettingValues.refreshAllInputMethodAndSubtypes();
// Clear existing "InputMethodPreference"s
mInputMethodPreferenceList.clear();
List<String> permittedList = mDpm.getPermittedInputMethodsForCurrentUser();
final Context context = getPrefContext();
final PackageManager packageManager = getActivity().getPackageManager();
final List<InputMethodInfo> imis = mInputMethodSettingValues.getInputMethodList();
final int N = (imis == null ? 0 : imis.size());
for (int i = 0; i < N; ++i) {
final InputMethodInfo imi = imis.get(i);
final boolean isAllowedByOrganization =
permittedList == null || permittedList.contains(imi.getPackageName());
final InputMethodPreference pref =
new InputMethodPreference(context, imi, true, isAllowedByOrganization, this);
pref.setIcon(getInputMethodIcon(packageManager, imi));
mInputMethodPreferenceList.add(pref);
}
final Collator collator = Collator.getInstance();
Collections.sort(
mInputMethodPreferenceList,
new Comparator<InputMethodPreference>() {
@Override
public int compare(InputMethodPreference lhs, InputMethodPreference rhs) {
return lhs.compareTo(rhs, collator);
}
});
getPreferenceScreen().removeAll();
for (int i = 0; i < N; ++i) {
final InputMethodPreference pref = mInputMethodPreferenceList.get(i);
pref.setOrder(i);
getPreferenceScreen().addPreference(pref);
InputMethodAndSubtypeUtil.removeUnnecessaryNonPersistentPreference(pref);
pref.updatePreferenceViews();
}
}
