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/*
* Copyright (C) 2008 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.Dialog;
import android.app.ProgressDialog;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.HandlerThread;
import android.os.Looper;
import android.os.Message;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceGroup;
import android.preference.PreferenceScreen;
import android.provider.Telephony;
import android.text.TextUtils;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;
public class ApnSettings extends PreferenceActivity {
public static final String EXTRA_POSITION = "position";
public static final String RESTORE_CARRIERS_URI =
"content://telephony/carriers/restore";
private static final int ID_INDEX = 0;
private static final int NAME_INDEX = 1;
private static final int APN_INDEX = 2;
private static final int MENU_NEW = Menu.FIRST;
private static final int MENU_RESTORE = Menu.FIRST + 1;
private static final int EVENT_RESTORE_DEFAULTAPN_START = 1;
private static final int EVENT_RESTORE_DEFAULTAPN_COMPLETE = 2;
private static final int DIALOG_RESTORE_DEFAULTAPN = 1001;
private static final Uri DEFAULTAPN_URI = Uri.parse(RESTORE_CARRIERS_URI);
private static boolean mRestoreDefaultApnMode;
private RestoreApnUiHandler mRestoreApnUiHandler;
private RestoreApnProcessHandler mRestoreApnProcessHandler;
private Cursor mCursor;
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
addPreferencesFromResource(R.xml.apn_settings);
}
@Override
protected void onResume() {
super.onResume();
if (!mRestoreDefaultApnMode) {
fillList();
} else {
showDialog(DIALOG_RESTORE_DEFAULTAPN);
}
}
private void fillList() {
mCursor = managedQuery(Telephony.Carriers.CONTENT_URI, new String[] {
"_id", "name", "apn"}, null, Telephony.Carriers.DEFAULT_SORT_ORDER);
PreferenceGroup apnList = (PreferenceGroup) findPreference("apn_list");
apnList.removeAll();
mCursor.moveToFirst();
while (!mCursor.isAfterLast()) {
String name = mCursor.getString(NAME_INDEX);
String apn = mCursor.getString(APN_INDEX);
if (name != null && apn != null && TextUtils.getTrimmedLength(name) > 0
&& TextUtils.getTrimmedLength(apn) > 0) {
Preference pref = new Preference((Context) this);
pref.setKey(mCursor.getString(ID_INDEX));
pref.setTitle(name);
pref.setSummary(apn);
pref.setPersistent(false);
apnList.addPreference(pref);
}
mCursor.moveToNext();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
menu.add(0, MENU_NEW, 0,
getResources().getString(R.string.menu_new))
.setIcon(android.R.drawable.ic_menu_add);
menu.add(0, MENU_RESTORE, 0,
getResources().getString(R.string.menu_restore))
.setIcon(android.R.drawable.ic_menu_upload);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case MENU_NEW:
addNewApn();
return true;
case MENU_RESTORE:
restoreDefaultApn();
return true;
}
return super.onOptionsItemSelected(item);
}
private void addNewApn() {
startActivity(new Intent(Intent.ACTION_INSERT, Telephony.Carriers.CONTENT_URI));
}
@Override
public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
int pos = Integer.parseInt(preference.getKey());
Uri url = ContentUris.withAppendedId(Telephony.Carriers.CONTENT_URI, pos);
startActivity(new Intent(Intent.ACTION_EDIT, url));
return true;
}
private boolean restoreDefaultApn() {
showDialog(DIALOG_RESTORE_DEFAULTAPN);
mRestoreDefaultApnMode = true;
if (mRestoreApnUiHandler == null) {
mRestoreApnUiHandler = new RestoreApnUiHandler();
}
if (mRestoreApnProcessHandler == null) {
HandlerThread restoreDefaultApnThread = new HandlerThread(
"Restore default APN Handler: Process Thread");
restoreDefaultApnThread.start();
mRestoreApnProcessHandler = new RestoreApnProcessHandler(
restoreDefaultApnThread.getLooper(), mRestoreApnUiHandler);
}
mRestoreApnProcessHandler
.sendEmptyMessage(EVENT_RESTORE_DEFAULTAPN_START);
return true;
}
private class RestoreApnUiHandler extends Handler {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case EVENT_RESTORE_DEFAULTAPN_COMPLETE:
fillList();
getPreferenceScreen().setEnabled(true);
mRestoreDefaultApnMode = false;
dismissDialog(DIALOG_RESTORE_DEFAULTAPN);
Toast.makeText(
ApnSettings.this,
getResources().getString(
R.string.restore_default_apn_completed),
Toast.LENGTH_LONG).show();
break;
}
}
}
private class RestoreApnProcessHandler extends Handler {
private Handler mRestoreApnUiHandler;
public RestoreApnProcessHandler(Looper looper, Handler restoreApnUiHandler) {
super(looper);
this.mRestoreApnUiHandler = restoreApnUiHandler;
}
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case EVENT_RESTORE_DEFAULTAPN_START:
ContentResolver resolver = getContentResolver();
resolver.delete(DEFAULTAPN_URI, null, null);
mRestoreApnUiHandler
.sendEmptyMessage(EVENT_RESTORE_DEFAULTAPN_COMPLETE);
break;
}
}
}
@Override
protected Dialog onCreateDialog(int id) {
if (id == DIALOG_RESTORE_DEFAULTAPN) {
ProgressDialog dialog = new ProgressDialog(this);
dialog.setMessage(getResources().getString(R.string.restore_default_apn));
dialog.setCancelable(false);
return dialog;
}
return null;
}
@Override
protected void onPrepareDialog(int id, Dialog dialog) {
if (id == DIALOG_RESTORE_DEFAULTAPN) {
getPreferenceScreen().setEnabled(false);
}
}
}
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