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/*
* Copyright (C) 2015 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.Fragment;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.res.Resources;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.Environment;
import android.os.SystemProperties;
import android.os.Process;
import android.os.UserManager;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.telephony.SubscriptionInfo;
import android.telephony.SubscriptionManager;
import android.text.TextUtils;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.LinearLayout;
import android.widget.Spinner;
import android.widget.TextView;
import com.android.internal.logging.MetricsLogger;
import com.android.internal.telephony.PhoneConstants;
import java.util.ArrayList;
import java.util.List;
/**
* Confirm and execute a reset of the device's network settings to a clean "just out of the box"
* state. Multiple confirmations are required: first, a general "are you sure you want to do this?"
* prompt, followed by a keyguard pattern trace if the user has defined one, followed by a final
* strongly-worded "THIS WILL RESET EVERYTHING" prompt. If at any time the phone is allowed to go
* to sleep, is locked, et cetera, then the confirmation sequence is abandoned.
*
* This is the initial screen.
*/
public class ResetNetwork extends InstrumentedFragment {
private static final String TAG = "ResetNetwork";
// Arbitrary to avoid conficts
private static final int KEYGUARD_REQUEST = 55;
private List<SubscriptionInfo> mSubscriptions;
private View mContentView;
private Spinner mSubscriptionSpinner;
private Button mInitiateButton;
/**
* Keyguard validation is run using the standard {@link ConfirmLockPattern}
* component as a subactivity
* @param request the request code to be returned once confirmation finishes
* @return true if confirmation launched
*/
private boolean runKeyguardConfirmation(int request) {
Resources res = getActivity().getResources();
return new ChooseLockSettingsHelper(getActivity(), this).launchConfirmationActivity(
request, res.getText(R.string.reset_network_title));
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode != KEYGUARD_REQUEST) {
return;
}
// If the user entered a valid keyguard trace, present the final
// confirmation prompt; otherwise, go back to the initial state.
if (resultCode == Activity.RESULT_OK) {
showFinalConfirmation();
} else {
establishInitialState();
}
}
private void showFinalConfirmation() {
Bundle args = new Bundle();
if (mSubscriptions != null && mSubscriptions.size() > 0) {
int selectedIndex = mSubscriptionSpinner.getSelectedItemPosition();
SubscriptionInfo subscription = mSubscriptions.get(selectedIndex);
args.putInt(PhoneConstants.SUBSCRIPTION_KEY, subscription.getSubscriptionId());
}
((SettingsActivity) getActivity()).startPreferencePanel(ResetNetworkConfirm.class.getName(),
args, R.string.reset_network_confirm_title, null, null, 0);
}
/**
* If the user clicks to begin the reset sequence, we next require a
* keyguard confirmation if the user has currently enabled one. If there
* is no keyguard available, we simply go to the final confirmation prompt.
*/
private final Button.OnClickListener mInitiateListener = new Button.OnClickListener() {
@Override
public void onClick(View v) {
if (!runKeyguardConfirmation(KEYGUARD_REQUEST)) {
showFinalConfirmation();
}
}
};
/**
* In its initial state, the activity presents a button for the user to
* click in order to initiate a confirmation sequence. This method is
* called from various other points in the code to reset the activity to
* this base state.
*
* <p>Reinflating views from resources is expensive and prevents us from
* caching widget pointers, so we use a single-inflate pattern: we lazy-
* inflate each view, caching all of the widget pointers we'll need at the
* time, then simply reuse the inflated views directly whenever we need
* to change contents.
*/
private void establishInitialState() {
mSubscriptionSpinner = (Spinner) mContentView.findViewById(R.id.reset_network_subscription);
mSubscriptions = SubscriptionManager.from(getActivity()).getActiveSubscriptionInfoList();
if (mSubscriptions != null && mSubscriptions.size() > 0) {
// Get the default subscription in the order of data, voice, sms, first up.
int defaultSubscription = SubscriptionManager.getDefaultDataSubId();
if (!SubscriptionManager.isUsableSubIdValue(defaultSubscription)) {
defaultSubscription = SubscriptionManager.getDefaultVoiceSubId();
}
if (!SubscriptionManager.isUsableSubIdValue(defaultSubscription)) {
defaultSubscription = SubscriptionManager.getDefaultSmsSubId();
}
if (!SubscriptionManager.isUsableSubIdValue(defaultSubscription)) {
defaultSubscription = SubscriptionManager.getDefaultSubId();
}
int selectedIndex = 0;
int size = mSubscriptions.size();
List<String> subscriptionNames = new ArrayList<>();
for (SubscriptionInfo record : mSubscriptions) {
if (record.getSubscriptionId() == defaultSubscription) {
// Set the first selected value to the default
selectedIndex = subscriptionNames.size();
}
String name = record.getDisplayName().toString();
if (TextUtils.isEmpty(name)) {
name = record.getNumber();
}
if (TextUtils.isEmpty(name)) {
name = record.getCarrierName().toString();
}
if (TextUtils.isEmpty(name)) {
name = String.format("MCC:%s MNC:%s Slot:%s Id:%s", record.getMcc(),
record.getMnc(), record.getSimSlotIndex(), record.getSubscriptionId());
}
subscriptionNames.add(name);
}
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),
android.R.layout.simple_spinner_item, subscriptionNames);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
mSubscriptionSpinner.setAdapter(adapter);
mSubscriptionSpinner.setSelection(selectedIndex);
mSubscriptionSpinner.setVisibility(View.VISIBLE);
} else {
mSubscriptionSpinner.setVisibility(View.INVISIBLE);
}
mInitiateButton = (Button) mContentView.findViewById(R.id.initiate_reset_network);
mInitiateButton.setOnClickListener(mInitiateListener);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
if (!Process.myUserHandle().isOwner()
|| UserManager.get(getActivity()).hasUserRestriction(
UserManager.DISALLOW_NETWORK_RESET)) {
return inflater.inflate(R.layout.network_reset_disallowed_screen, null);
}
mContentView = inflater.inflate(R.layout.reset_network, null);
establishInitialState();
return mContentView;
}
@Override
protected int getMetricsCategory() {
return MetricsLogger.RESET_NETWORK;
}
}
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