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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settings;
import android.app.Activity;
import android.app.ActivityManagerNative;
import android.app.IActivityManager;
import android.app.ListFragment;
import android.app.backup.BackupManager;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.os.Bundle;
import android.os.RemoteException;
import android.util.Log;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import java.text.Collator;
import java.util.Arrays;
import java.util.Locale;
public class LocalePicker extends ListFragment {
private static final String TAG = "LocalePicker";
private static final boolean DEBUG = false;
Loc[] mLocales;
String[] mSpecialLocaleCodes;
String[] mSpecialLocaleNames;
Activity mActivity;
private static class Loc implements Comparable<Loc> {
static Collator sCollator = Collator.getInstance();
String label;
Locale locale;
public Loc(String label, Locale locale) {
this.label = label;
this.locale = locale;
}
@Override
public String toString() {
return this.label;
}
@Override
public int compareTo(Loc another) {
return sCollator.compare(this.label, another.label);
}
}
private void setUpLocaleList() {
final Resources resources = mActivity.getResources();
mSpecialLocaleCodes = resources.getStringArray(R.array.special_locale_codes);
mSpecialLocaleNames = resources.getStringArray(R.array.special_locale_names);
final String[] locales = mActivity.getAssets().getLocales();
Arrays.sort(locales);
final int origSize = locales.length;
Loc[] preprocess = new Loc[origSize];
int finalSize = 0;
for (int i = 0 ; i < origSize; i++ ) {
String s = locales[i];
int len = s.length();
if (len == 5) {
String language = s.substring(0, 2);
String country = s.substring(3, 5);
Locale l = new Locale(language, country);
if (finalSize == 0) {
if (DEBUG) {
Log.v(TAG, "adding initial "+ toTitleCase(l.getDisplayLanguage(l)));
}
preprocess[finalSize++] =
new Loc(toTitleCase(l.getDisplayLanguage(l)), l);
} else {
// check previous entry:
// same lang and a country -> upgrade to full name and
// insert ours with full name
// diff lang -> insert ours with lang-only name
if (preprocess[finalSize-1].locale.getLanguage().equals(
language)) {
if (DEBUG) {
Log.v(TAG, "backing up and fixing "+
preprocess[finalSize-1].label+" to "+
getDisplayName(preprocess[finalSize-1].locale));
}
preprocess[finalSize-1].label = toTitleCase(
getDisplayName(preprocess[finalSize-1].locale));
if (DEBUG) {
Log.v(TAG, " and adding "+ toTitleCase(getDisplayName(l)));
}
preprocess[finalSize++] =
new Loc(toTitleCase(getDisplayName(l)), l);
} else {
String displayName;
if (s.equals("zz_ZZ")) {
displayName = "Pseudo...";
} else {
displayName = toTitleCase(l.getDisplayLanguage(l));
}
if (DEBUG) {
Log.v(TAG, "adding "+displayName);
}
preprocess[finalSize++] = new Loc(displayName, l);
}
}
}
}
mLocales = new Loc[finalSize];
for (int i = 0; i < finalSize ; i++) {
mLocales[i] = preprocess[i];
}
Arrays.sort(mLocales);
final int layoutId = R.layout.locale_picker_item;
final int fieldId = R.id.locale;
final ArrayAdapter<Loc> adapter =
new ArrayAdapter<Loc>(mActivity, layoutId, fieldId, mLocales);
setListAdapter(adapter);
}
@Override
public void onActivityCreated(final Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
mActivity = getActivity();
setUpLocaleList();
}
private static String toTitleCase(String s) {
if (s.length() == 0) {
return s;
}
return Character.toUpperCase(s.charAt(0)) + s.substring(1);
}
private String getDisplayName(Locale l) {
String code = l.toString();
for (int i = 0; i < mSpecialLocaleCodes.length; i++) {
if (mSpecialLocaleCodes[i].equals(code)) {
return mSpecialLocaleNames[i];
}
}
return l.getDisplayName(l);
}
@Override
public void onResume() {
super.onResume();
getListView().requestFocus();
}
@Override
public void onListItemClick(ListView l, View v, int position, long id) {
try {
IActivityManager am = ActivityManagerNative.getDefault();
Configuration config = am.getConfiguration();
Loc loc = mLocales[position];
config.locale = loc.locale;
// indicate this isn't some passing default - the user wants this remembered
config.userSetLocale = true;
am.updateConfiguration(config);
// Trigger the dirty bit for the Settings Provider.
BackupManager.dataChanged("com.android.providers.settings");
} catch (RemoteException e) {
// Intentionally left blank
}
mActivity.finish();
}
}
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