/*
* 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.wifi;
import static android.net.wifi.WifiConfiguration.INVALID_NETWORK_ID;
import android.app.ActionBar;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.app.Dialog;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageManager;
import android.content.res.Resources;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.NetworkInfo.DetailedState;
import android.net.wifi.ScanResult;
import android.net.wifi.SupplicantState;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.net.wifi.WpsInfo;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceScreen;
import android.security.Credentials;
import android.security.KeyStore;
import android.telephony.TelephonyManager;
import android.util.AttributeSet;
import android.util.Log;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.PopupMenu;
import android.widget.PopupMenu.OnMenuItemClickListener;
import android.widget.RelativeLayout;
import android.widget.Switch;
import android.widget.TextView;
import android.widget.Toast;
import com.android.settings.R;
import com.android.settings.SettingsPreferenceFragment;
import com.android.settings.wifi.p2p.WifiP2pSettings;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;
/**
* Two types of UI are provided here.
*
* The first is for "usual Settings", appearing as any other Setup fragment.
*
* The second is for Setup Wizard, with a simplified interface that hides the action bar
* and menus.
*/
public class WifiSettings extends SettingsPreferenceFragment
implements DialogInterface.OnClickListener {
private static final String TAG = "WifiSettings";
private static final int MENU_ID_WPS_PBC = Menu.FIRST;
private static final int MENU_ID_WPS_PIN = Menu.FIRST + 1;
private static final int MENU_ID_P2P = Menu.FIRST + 2;
private static final int MENU_ID_ADD_NETWORK = Menu.FIRST + 3;
private static final int MENU_ID_ADVANCED = Menu.FIRST + 4;
private static final int MENU_ID_SCAN = Menu.FIRST + 5;
private static final int MENU_ID_CONNECT = Menu.FIRST + 6;
private static final int MENU_ID_FORGET = Menu.FIRST + 7;
private static final int MENU_ID_MODIFY = Menu.FIRST + 8;
private static final int WIFI_DIALOG_ID = 1;
private static final int WPS_PBC_DIALOG_ID = 2;
private static final int WPS_PIN_DIALOG_ID = 3;
private static final int WIFI_SKIPPED_DIALOG_ID = 4;
private static final int WIFI_AND_MOBILE_SKIPPED_DIALOG_ID = 5;
// Combo scans can take 5-6s to complete - set to 10s.
private static final int WIFI_RESCAN_INTERVAL_MS = 10 * 1000;
// Instance state keys
private static final String SAVE_DIALOG_EDIT_MODE = "edit_mode";
private static final String SAVE_DIALOG_ACCESS_POINT_STATE = "wifi_ap_state";
private final IntentFilter mFilter;
private final BroadcastReceiver mReceiver;
private final Scanner mScanner;
private WifiManager mWifiManager;
private WifiManager.ActionListener mConnectListener;
private WifiManager.ActionListener mSaveListener;
private WifiManager.ActionListener mForgetListener;
private boolean mP2pSupported;
private WifiEnabler mWifiEnabler;
// An access point being editted is stored here.
private AccessPoint mSelectedAccessPoint;
private DetailedState mLastState;
private WifiInfo mLastInfo;
private AtomicBoolean mConnected = new AtomicBoolean(false);
private int mKeyStoreNetworkId = INVALID_NETWORK_ID;
private WifiDialog mDialog;
private TextView mEmptyView;
/* Used in Wifi Setup context */
// this boolean extra specifies whether to disable the Next button when not connected
private static final String EXTRA_ENABLE_NEXT_ON_CONNECT = "wifi_enable_next_on_connect";
// this boolean extra specifies whether to auto finish when connection is established
private static final String EXTRA_AUTO_FINISH_ON_CONNECT = "wifi_auto_finish_on_connect";
// this boolean extra shows a custom button that we can control
protected static final String EXTRA_SHOW_CUSTOM_BUTTON = "wifi_show_custom_button";
// show a text regarding data charges when wifi connection is required during setup wizard
protected static final String EXTRA_SHOW_WIFI_REQUIRED_INFO = "wifi_show_wifi_required_info";
// this boolean extra is set if we are being invoked by the Setup Wizard
private static final String EXTRA_IS_FIRST_RUN = "firstRun";
// should Next button only be enabled when we have a connection?
private boolean mEnableNextOnConnection;
// should activity finish once we have a connection?
private boolean mAutoFinishOnConnection;
// Save the dialog details
private boolean mDlgEdit;
private AccessPoint mDlgAccessPoint;
private Bundle mAccessPointSavedState;
// the action bar uses a different set of controls for Setup Wizard
private boolean mSetupWizardMode;
/* End of "used in Wifi Setup context" */
public WifiSettings() {
mFilter = new IntentFilter();
mFilter.addAction(WifiManager.WIFI_STATE_CHANGED_ACTION);
mFilter.addAction(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION);
mFilter.addAction(WifiManager.NETWORK_IDS_CHANGED_ACTION);
mFilter.addAction(WifiManager.SUPPLICANT_STATE_CHANGED_ACTION);
mFilter.addAction(WifiManager.CONFIGURED_NETWORKS_CHANGED_ACTION);
mFilter.addAction(WifiManager.LINK_CONFIGURATION_CHANGED_ACTION);
mFilter.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION);
mFilter.addAction(WifiManager.RSSI_CHANGED_ACTION);
mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
handleEvent(context, intent);
}
};
mScanner = new Scanner();
}
@Override
public void onCreate(Bundle icicle) {
// Set this flag early, as it's needed by getHelpResource(), which is called by super
mSetupWizardMode = getActivity().getIntent().getBooleanExtra(EXTRA_IS_FIRST_RUN, false);
super.onCreate(icicle);
}
@Override
public View onCreateView(final LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
if (mSetupWizardMode) {
View view = inflater.inflate(R.layout.setup_preference, container, false);
View other = view.findViewById(R.id.other_network);
other.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (mWifiManager.isWifiEnabled()) {
onAddNetworkPressed();
}
}
});
final ImageButton b = (ImageButton) view.findViewById(R.id.more);
if (b != null) {
b.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (mWifiManager.isWifiEnabled()) {
PopupMenu pm = new PopupMenu(inflater.getContext(), b);
pm.inflate(R.menu.wifi_setup);
pm.setOnMenuItemClickListener(new OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
if (R.id.wifi_wps == item.getItemId()) {
showDialog(WPS_PBC_DIALOG_ID);
return true;
}
return false;
}
});
pm.show();
}
}
});
}
Intent intent = getActivity().getIntent();
if (intent.getBooleanExtra(EXTRA_SHOW_CUSTOM_BUTTON, false)) {
view.findViewById(R.id.button_bar).setVisibility(View.VISIBLE);
view.findViewById(R.id.back_button).setVisibility(View.INVISIBLE);
view.findViewById(R.id.skip_button).setVisibility(View.INVISIBLE);
view.findViewById(R.id.next_button).setVisibility(View.INVISIBLE);
Button customButton = (Button) view.findViewById(R.id.custom_button);
customButton.setVisibility(View.VISIBLE);
customButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (isPhone() && !hasSimProblem()) {
showDialog(WIFI_SKIPPED_DIALOG_ID);
} else {
showDialog(WIFI_AND_MOBILE_SKIPPED_DIALOG_ID);
}
}
});
}
if (intent.getBooleanExtra(EXTRA_SHOW_WIFI_REQUIRED_INFO, false)) {
view.findViewById(R.id.wifi_required_info).setVisibility(View.VISIBLE);
}
return view;
} else {
return super.onCreateView(inflater, container, savedInstanceState);
}
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
mP2pSupported = getPackageManager().hasSystemFeature(PackageManager.FEATURE_WIFI_DIRECT);
mWifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
mConnectListener = new WifiManager.ActionListener() {
public void onSuccess() {
}
public void onFailure(int reason) {
Activity activity = getActivity();
if (activity != null) {
Toast.makeText(activity,
R.string.wifi_failed_connect_message,
Toast.LENGTH_SHORT).show();
}
}
};
mSaveListener = new WifiManager.ActionListener() {
public void onSuccess() {
}
public void onFailure(int reason) {
Activity activity = getActivity();
if (activity != null) {
Toast.makeText(activity,
R.string.wifi_failed_save_message,
Toast.LENGTH_SHORT).show();
}
}
};
mForgetListener = new WifiManager.ActionListener() {
public void onSuccess() {
}
public void onFailure(int reason) {
Activity activity = getActivity();
if (activity != null) {
Toast.makeText(activity,
R.string.wifi_failed_forget_message,
Toast.LENGTH_SHORT).show();
}
}
};
if (savedInstanceState != null
&& savedInstanceState.containsKey(SAVE_DIALOG_ACCESS_POINT_STATE)) {
mDlgEdit = savedInstanceState.getBoolean(SAVE_DIALOG_EDIT_MODE);
mAccessPointSavedState = savedInstanceState.getBundle(SAVE_DIALOG_ACCESS_POINT_STATE);
}
final Activity activity = getActivity();
final Intent intent = activity.getIntent();
// first if we're supposed to finish once we have a connection
mAutoFinishOnConnection = intent.getBooleanExtra(EXTRA_AUTO_FINISH_ON_CONNECT, false);
if (mAutoFinishOnConnection) {
// Hide the next button
if (hasNextButton()) {
getNextButton().setVisibility(View.GONE);
}
final ConnectivityManager connectivity = (ConnectivityManager)
activity.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivity != null
&& connectivity.getNetworkInfo(ConnectivityManager.TYPE_WIFI).isConnected()) {
activity.setResult(Activity.RESULT_OK);
activity.finish();
return;
}
}
// if we're supposed to enable/disable the Next button based on our current connection
// state, start it off in the right state
mEnableNextOnConnection = intent.getBooleanExtra(EXTRA_ENABLE_NEXT_ON_CONNECT, false);
if (mEnableNextOnConnection) {
if (hasNextButton()) {
final ConnectivityManager connectivity = (ConnectivityManager)
activity.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivity != null) {
NetworkInfo info = connectivity.getNetworkInfo(
ConnectivityManager.TYPE_WIFI);
changeNextButtonState(info.isConnected());
}
}
}
addPreferencesFromResource(R.xml.wifi_settings);
if (mSetupWizardMode) {
getView().setSystemUiVisibility(
View.STATUS_BAR_DISABLE_BACK |
View.STATUS_BAR_DISABLE_HOME |
View.STATUS_BAR_DISABLE_RECENT |
View.STATUS_BAR_DISABLE_NOTIFICATION_ALERTS |
View.STATUS_BAR_DISABLE_CLOCK);
}
// On/off switch is hidden for Setup Wizard
if (!mSetupWizardMode) {
Switch actionBarSwitch = new Switch(activity);
if (activity instanceof PreferenceActivity) {
PreferenceActivity preferenceActivity = (PreferenceActivity) activity;
if (preferenceActivity.onIsHidingHeaders() || !preferenceActivity.onIsMultiPane()) {
final int padding = activity.getResources().getDimensionPixelSize(
R.dimen.action_bar_switch_padding);
actionBarSwitch.setPaddingRelative(0, 0, padding, 0);
activity.getActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM,
ActionBar.DISPLAY_SHOW_CUSTOM);
activity.getActionBar().setCustomView(actionBarSwitch, new ActionBar.LayoutParams(
ActionBar.LayoutParams.WRAP_CONTENT,
ActionBar.LayoutParams.WRAP_CONTENT,
Gravity.CENTER_VERTICAL | Gravity.END));
}
}
mWifiEnabler = new WifiEnabler(activity, actionBarSwitch);
}
mEmptyView = (TextView) getView().findViewById(android.R.id.empty);
getListView().setEmptyView(mEmptyView);
if (!mSetupWizardMode) {
registerForContextMenu(getListView());
}
setHasOptionsMenu(true);
}
@Override
public void onResume() {
super.onResume();
if (mWifiEnabler != null) {
mWifiEnabler.resume();
}
getActivity().registerReceiver(mReceiver, mFilter);
if (mKeyStoreNetworkId != INVALID_NETWORK_ID &&
KeyStore.getInstance().state() == KeyStore.State.UNLOCKED) {
mWifiManager.connect(mKeyStoreNetworkId, mConnectListener);
}
mKeyStoreNetworkId = INVALID_NETWORK_ID;
updateAccessPoints();
}
@Override
public void onPause() {
super.onPause();
if (mWifiEnabler != null) {
mWifiEnabler.pause();
}
getActivity().unregisterReceiver(mReceiver);
mScanner.pause();
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
final boolean wifiIsEnabled = mWifiManager.isWifiEnabled();
if (mSetupWizardMode) {
// FIXME: add setIcon() when graphics are available
menu.add(Menu.NONE, MENU_ID_WPS_PBC, 0, R.string.wifi_menu_wps_pbc)
.setIcon(R.drawable.ic_wps)
.setEnabled(wifiIsEnabled)
.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
menu.add(Menu.NONE, MENU_ID_ADD_NETWORK, 0, R.string.wifi_add_network)
.setEnabled(wifiIsEnabled)
.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
} else {
menu.add(Menu.NONE, MENU_ID_WPS_PBC, 0, R.string.wifi_menu_wps_pbc)
.setIcon(R.drawable.ic_wps)
.setEnabled(wifiIsEnabled)
.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
menu.add(Menu.NONE, MENU_ID_ADD_NETWORK, 0, R.string.wifi_add_network)
.setIcon(R.drawable.ic_menu_add)
.setEnabled(wifiIsEnabled)
.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
menu.add(Menu.NONE, MENU_ID_SCAN, 0, R.string.wifi_menu_scan)
//.setIcon(R.drawable.ic_menu_scan_network)
.setEnabled(wifiIsEnabled)
.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
menu.add(Menu.NONE, MENU_ID_WPS_PIN, 0, R.string.wifi_menu_wps_pin)
.setEnabled(wifiIsEnabled)
.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
if (mP2pSupported) {
menu.add(Menu.NONE, MENU_ID_P2P, 0, R.string.wifi_menu_p2p)
.setEnabled(wifiIsEnabled)
.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
}
menu.add(Menu.NONE, MENU_ID_ADVANCED, 0, R.string.wifi_menu_advanced)
//.setIcon(android.R.drawable.ic_menu_manage)
.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
}
super.onCreateOptionsMenu(menu, inflater);
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
// If the dialog is showing, save its state.
if (mDialog != null && mDialog.isShowing()) {
outState.putBoolean(SAVE_DIALOG_EDIT_MODE, mDlgEdit);
if (mDlgAccessPoint != null) {
mAccessPointSavedState = new Bundle();
mDlgAccessPoint.saveWifiState(mAccessPointSavedState);
outState.putBundle(SAVE_DIALOG_ACCESS_POINT_STATE, mAccessPointSavedState);
}
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case MENU_ID_WPS_PBC:
showDialog(WPS_PBC_DIALOG_ID);
return true;
case MENU_ID_P2P:
if (getActivity() instanceof PreferenceActivity) {
((PreferenceActivity) getActivity()).startPreferencePanel(
WifiP2pSettings.class.getCanonicalName(),
null,
R.string.wifi_p2p_settings_title, null,
this, 0);
} else {
startFragment(this, WifiP2pSettings.class.getCanonicalName(), -1, null);
}
return true;
case MENU_ID_WPS_PIN:
showDialog(WPS_PIN_DIALOG_ID);
return true;
case MENU_ID_SCAN:
if (mWifiManager.isWifiEnabled()) {
mScanner.forceScan();
}
return true;
case MENU_ID_ADD_NETWORK:
if (mWifiManager.isWifiEnabled()) {
onAddNetworkPressed();
}
return true;
case MENU_ID_ADVANCED:
if (getActivity() instanceof PreferenceActivity) {
((PreferenceActivity) getActivity()).startPreferencePanel(
AdvancedWifiSettings.class.getCanonicalName(),
null,
R.string.wifi_advanced_titlebar, null,
this, 0);
} else {
startFragment(this, AdvancedWifiSettings.class.getCanonicalName(), -1, null);
}
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo info) {
if (info instanceof AdapterContextMenuInfo) {
Preference preference = (Preference) getListView().getItemAtPosition(
((AdapterContextMenuInfo) info).position);
if (preference instanceof AccessPoint) {
mSelectedAccessPoint = (AccessPoint) preference;
menu.setHeaderTitle(mSelectedAccessPoint.ssid);
if (mSelectedAccessPoint.getLevel() != -1
&& mSelectedAccessPoint.getState() == null) {
menu.add(Menu.NONE, MENU_ID_CONNECT, 0, R.string.wifi_menu_connect);
}
if (mSelectedAccessPoint.networkId != INVALID_NETWORK_ID) {
menu.add(Menu.NONE, MENU_ID_FORGET, 0, R.string.wifi_menu_forget);
menu.add(Menu.NONE, MENU_ID_MODIFY, 0, R.string.wifi_menu_modify);
}
}
}
}
@Override
public boolean onContextItemSelected(MenuItem item) {
if (mSelectedAccessPoint == null) {
return super.onContextItemSelected(item);
}
switch (item.getItemId()) {
case MENU_ID_CONNECT: {
if (mSelectedAccessPoint.networkId != INVALID_NETWORK_ID) {
if (!requireKeyStore(mSelectedAccessPoint.getConfig())) {
mWifiManager.connect(mSelectedAccessPoint.networkId,
mConnectListener);
}
} else if (mSelectedAccessPoint.security == AccessPoint.SECURITY_NONE) {
/** Bypass dialog for unsecured networks */
mSelectedAccessPoint.generateOpenNetworkConfig();
mWifiManager.connect(mSelectedAccessPoint.getConfig(),
mConnectListener);
} else {
showDialog(mSelectedAccessPoint, true);
}
return true;
}
case MENU_ID_FORGET: {
mWifiManager.forget(mSelectedAccessPoint.networkId, mForgetListener);
return true;
}
case MENU_ID_MODIFY: {
showDialog(mSelectedAccessPoint, true);
return true;
}
}
return super.onContextItemSelected(item);
}
@Override
public boolean onPreferenceTreeClick(PreferenceScreen screen, Preference preference) {
if (preference instanceof AccessPoint) {
mSelectedAccessPoint = (AccessPoint) preference;
/** Bypass dialog for unsecured, unsaved networks */
if (mSelectedAccessPoint.security == AccessPoint.SECURITY_NONE &&
mSelectedAccessPoint.networkId == INVALID_NETWORK_ID) {
mSelectedAccessPoint.generateOpenNetworkConfig();
mWifiManager.connect(mSelectedAccessPoint.getConfig(), mConnectListener);
} else {
showDialog(mSelectedAccessPoint, false);
}
} else {
return super.onPreferenceTreeClick(screen, preference);
}
return true;
}
private void showDialog(AccessPoint accessPoint, boolean edit) {
if (mDialog != null) {
removeDialog(WIFI_DIALOG_ID);
mDialog = null;
}
// Save the access point and edit mode
mDlgAccessPoint = accessPoint;
mDlgEdit = edit;
showDialog(WIFI_DIALOG_ID);
}
@Override
public Dialog onCreateDialog(int dialogId) {
switch (dialogId) {
case WIFI_DIALOG_ID:
AccessPoint ap = mDlgAccessPoint; // For manual launch
if (ap == null) { // For re-launch from saved state
if (mAccessPointSavedState != null) {
ap = new AccessPoint(getActivity(), mAccessPointSavedState);
// For repeated orientation changes
mDlgAccessPoint = ap;
}
}
// If it's still null, fine, it's for Add Network
mSelectedAccessPoint = ap;
mDialog = new WifiDialog(getActivity(), this, ap, mDlgEdit);
return mDialog;
case WPS_PBC_DIALOG_ID:
return new WpsDialog(getActivity(), WpsInfo.PBC);
case WPS_PIN_DIALOG_ID:
return new WpsDialog(getActivity(), WpsInfo.DISPLAY);
case WIFI_SKIPPED_DIALOG_ID:
return new AlertDialog.Builder(getActivity())
.setMessage(R.string.wifi_skipped_message)
.setCancelable(false)
.setNegativeButton(R.string.wifi_skip_anyway,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
getActivity().setResult(Activity.RESULT_CANCELED);
getActivity().finish();
}
})
.setPositiveButton(R.string.wifi_dont_skip,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
}
})
.create();
case WIFI_AND_MOBILE_SKIPPED_DIALOG_ID:
return new AlertDialog.Builder(getActivity())
.setMessage(R.string.wifi_and_mobile_skipped_message)
.setCancelable(false)
.setNegativeButton(R.string.wifi_skip_anyway,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
getActivity().setResult(Activity.RESULT_CANCELED);
getActivity().finish();
}
})
.setPositiveButton(R.string.wifi_dont_skip,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
}
})
.create();
}
return super.onCreateDialog(dialogId);
}
private boolean isPhone() {
final TelephonyManager telephonyManager = (TelephonyManager)this.getSystemService(
Context.TELEPHONY_SERVICE);
return telephonyManager != null
&& telephonyManager.getPhoneType() != TelephonyManager.PHONE_TYPE_NONE;
}
/**
* Return true if there's any SIM related impediment to connectivity.
* Treats Unknown as OK. (Only returns true if we're sure of a SIM problem.)
*/
protected boolean hasSimProblem() {
final TelephonyManager telephonyManager = (TelephonyManager)this.getSystemService(
Context.TELEPHONY_SERVICE);
return telephonyManager != null
&& telephonyManager.getCurrentPhoneType() == TelephonyManager.PHONE_TYPE_GSM
&& telephonyManager.getSimState() != TelephonyManager.SIM_STATE_READY
&& telephonyManager.getSimState() != TelephonyManager.SIM_STATE_UNKNOWN;
}
private boolean requireKeyStore(WifiConfiguration config) {
if (WifiConfigController.requireKeyStore(config) &&
KeyStore.getInstance().state() != KeyStore.State.UNLOCKED) {
mKeyStoreNetworkId = config.networkId;
Credentials.getInstance().unlock(getActivity());
return true;
}
return false;
}
/**
* Shows the latest access points available with supplimental information like
* the strength of network and the security for it.
*/
private void updateAccessPoints() {
// Safeguard from some delayed event handling
if (getActivity() == null) return;
final int wifiState = mWifiManager.getWifiState();
switch (wifiState) {
case WifiManager.WIFI_STATE_ENABLED:
// AccessPoints are automatically sorted with TreeSet.
final Collection<AccessPoint> accessPoints = constructAccessPoints();
getPreferenceScreen().removeAll();
if(accessPoints.size() == 0) {
addMessagePreference(R.string.wifi_empty_list_wifi_on);
}
for (AccessPoint accessPoint : accessPoints) {
getPreferenceScreen().addPreference(accessPoint);
}
break;
case WifiManager.WIFI_STATE_ENABLING:
getPreferenceScreen().removeAll();
break;
case WifiManager.WIFI_STATE_DISABLING:
addMessagePreference(R.string.wifi_stopping);
break;
case WifiManager.WIFI_STATE_DISABLED:
addMessagePreference(R.string.wifi_empty_list_wifi_off);
break;
}
}
private void addMessagePreference(int messageId) {
if (mEmptyView != null) mEmptyView.setText(messageId);
getPreferenceScreen().removeAll();
}
/** Returns sorted list of access points */
private List<AccessPoint> constructAccessPoints() {
ArrayList<AccessPoint> accessPoints = new ArrayList<AccessPoint>();
/** Lookup table to more quickly update AccessPoints by only considering objects with the
* correct SSID. Maps SSID -> List of AccessPoints with the given SSID. */
Multimap<String, AccessPoint> apMap = new Multimap<String, AccessPoint>();
final List<WifiConfiguration> configs = mWifiManager.getConfiguredNetworks();
if (configs != null) {
for (WifiConfiguration config : configs) {
AccessPoint accessPoint = new AccessPoint(getActivity(), config);
accessPoint.update(mLastInfo, mLastState);
accessPoints.add(accessPoint);
apMap.put(accessPoint.ssid, accessPoint);
}
}
final List<ScanResult> results = mWifiManager.getScanResults();
if (results != null) {
for (ScanResult result : results) {
// Ignore hidden and ad-hoc networks.
if (result.SSID == null || result.SSID.length() == 0 ||
result.capabilities.contains("[IBSS]")) {
continue;
}
boolean found = false;
for (AccessPoint accessPoint : apMap.getAll(result.SSID)) {
if (accessPoint.update(result))
found = true;
}
if (!found) {
AccessPoint accessPoint = new AccessPoint(getActivity(), result);
accessPoints.add(accessPoint);
apMap.put(accessPoint.ssid, accessPoint);
}
}
}
// Pre-sort accessPoints to speed preference insertion
Collections.sort(accessPoints);
return accessPoints;
}
/** A restricted multimap for use in constructAccessPoints */
private class Multimap<K,V> {
private HashMap<K,List<V>> store = new HashMap<K,List<V>>();
/** retrieve a non-null list of values with key K */
List<V> getAll(K key) {
List<V> values = store.get(key);
return values != null ? values : Collections.<V>emptyList();
}
void put(K key, V val) {
List<V> curVals = store.get(key);
if (curVals == null) {
curVals = new ArrayList<V>(3);
store.put(key, curVals);
}
curVals.add(val);
}
}
private void handleEvent(Context context, Intent intent) {
String action = intent.getAction();
if (WifiManager.WIFI_STATE_CHANGED_ACTION.equals(action)) {
updateWifiState(intent.getIntExtra(WifiManager.EXTRA_WIFI_STATE,
WifiManager.WIFI_STATE_UNKNOWN));
} else if (WifiManager.SCAN_RESULTS_AVAILABLE_ACTION.equals(action) ||
WifiManager.CONFIGURED_NETWORKS_CHANGED_ACTION.equals(action) ||
WifiManager.LINK_CONFIGURATION_CHANGED_ACTION.equals(action)) {
updateAccessPoints();
} else if (WifiManager.SUPPLICANT_STATE_CHANGED_ACTION.equals(action)) {
//Ignore supplicant state changes when network is connected
//TODO: we should deprecate SUPPLICANT_STATE_CHANGED_ACTION and
//introduce a broadcast that combines the supplicant and network
//network state change events so the apps dont have to worry about
//ignoring supplicant state change when network is connected
//to get more fine grained information.
SupplicantState state = (SupplicantState) intent.getParcelableExtra(
WifiManager.EXTRA_NEW_STATE);
if (!mConnected.get() && SupplicantState.isHandshakeState(state)) {
updateConnectionState(WifiInfo.getDetailedStateOf(state));
}
} else if (WifiManager.NETWORK_STATE_CHANGED_ACTION.equals(action)) {
NetworkInfo info = (NetworkInfo) intent.getParcelableExtra(
WifiManager.EXTRA_NETWORK_INFO);
mConnected.set(info.isConnected());
changeNextButtonState(info.isConnected());
updateAccessPoints();
updateConnectionState(info.getDetailedState());
if (mAutoFinishOnConnection && info.isConnected()) {
Activity activity = getActivity();
if (activity != null) {
activity.setResult(Activity.RESULT_OK);
activity.finish();
}
return;
}
} else if (WifiManager.RSSI_CHANGED_ACTION.equals(action)) {
updateConnectionState(null);
}
}
private void updateConnectionState(DetailedState state) {
/* sticky broadcasts can call this when wifi is disabled */
if (!mWifiManager.isWifiEnabled()) {
mScanner.pause();
return;
}
if (state == DetailedState.OBTAINING_IPADDR) {
mScanner.pause();
} else {
mScanner.resume();
}
mLastInfo = mWifiManager.getConnectionInfo();
if (state != null) {
mLastState = state;
}
for (int i = getPreferenceScreen().getPreferenceCount() - 1; i >= 0; --i) {
// Maybe there's a WifiConfigPreference
Preference preference = getPreferenceScreen().getPreference(i);
if (preference instanceof AccessPoint) {
final AccessPoint accessPoint = (AccessPoint) preference;
accessPoint.update(mLastInfo, mLastState);
}
}
}
private void updateWifiState(int state) {
Activity activity = getActivity();
if (activity != null) {
activity.invalidateOptionsMenu();
}
switch (state) {
case WifiManager.WIFI_STATE_ENABLED:
mScanner.resume();
return; // not break, to avoid the call to pause() below
case WifiManager.WIFI_STATE_ENABLING:
addMessagePreference(R.string.wifi_starting);
break;
case WifiManager.WIFI_STATE_DISABLED:
addMessagePreference(R.string.wifi_empty_list_wifi_off);
break;
}
mLastInfo = null;
mLastState = null;
mScanner.pause();
}
private class Scanner extends Handler {
private int mRetry = 0;
void resume() {
if (!hasMessages(0)) {
sendEmptyMessage(0);
}
}
void forceScan() {
removeMessages(0);
sendEmptyMessage(0);
}
void pause() {
mRetry = 0;
removeMessages(0);
}
@Override
public void handleMessage(Message message) {
if (mWifiManager.startScanActive()) {
mRetry = 0;
} else if (++mRetry >= 3) {
mRetry = 0;
Activity activity = getActivity();
if (activity != null) {
Toast.makeText(activity, R.string.wifi_fail_to_scan,
Toast.LENGTH_LONG).show();
}
return;
}
sendEmptyMessageDelayed(0, WIFI_RESCAN_INTERVAL_MS);
}
}
/**
* Renames/replaces "Next" button when appropriate. "Next" button usually exists in
* Wifi setup screens, not in usual wifi settings screen.
*
* @param connected true when the device is connected to a wifi network.
*/
private void changeNextButtonState(boolean connected) {
if (mEnableNextOnConnection && hasNextButton()) {
getNextButton().setEnabled(connected);
}
}
public void onClick(DialogInterface dialogInterface, int button) {
if (button == WifiDialog.BUTTON_FORGET && mSelectedAccessPoint != null) {
forget();
} else if (button == WifiDialog.BUTTON_SUBMIT) {
submit(mDialog.getController());
}
}
/* package */ void submit(WifiConfigController configController) {
final WifiConfiguration config = configController.getConfig();
if (config == null) {
if (mSelectedAccessPoint != null
&& !requireKeyStore(mSelectedAccessPoint.getConfig())
&& mSelectedAccessPoint.networkId != INVALID_NETWORK_ID) {
mWifiManager.connect(mSelectedAccessPoint.networkId,
mConnectListener);
}
} else if (config.networkId != INVALID_NETWORK_ID) {
if (mSelectedAccessPoint != null) {
mWifiManager.save(config, mSaveListener);
}
} else {
if (configController.isEdit() || requireKeyStore(config)) {
mWifiManager.save(config, mSaveListener);
} else {
mWifiManager.connect(config, mConnectListener);
}
}
if (mWifiManager.isWifiEnabled()) {
mScanner.resume();
}
updateAccessPoints();
}
/* package */ void forget() {
if (mSelectedAccessPoint.networkId == INVALID_NETWORK_ID) {
// Should not happen, but a monkey seems to triger it
Log.e(TAG, "Failed to forget invalid network " + mSelectedAccessPoint.getConfig());
return;
}
mWifiManager.forget(mSelectedAccessPoint.networkId, mForgetListener);
if (mWifiManager.isWifiEnabled()) {
mScanner.resume();
}
updateAccessPoints();
// We need to rename/replace "Next" button in wifi setup context.
changeNextButtonState(false);
}
/**
* Refreshes acccess points and ask Wifi module to scan networks again.
*/
/* package */ void refreshAccessPoints() {
if (mWifiManager.isWifiEnabled()) {
mScanner.resume();
}
getPreferenceScreen().removeAll();
}
/**
* Called when "add network" button is pressed.
*/
/* package */ void onAddNetworkPressed() {
// No exact access point is selected.
mSelectedAccessPoint = null;
showDialog(null, true);
}
/* package */ int getAccessPointsCount() {
final boolean wifiIsEnabled = mWifiManager.isWifiEnabled();
if (wifiIsEnabled) {
return getPreferenceScreen().getPreferenceCount();
} else {
return 0;
}
}
/**
* Requests wifi module to pause wifi scan. May be ignored when the module is disabled.
*/
/* package */ void pauseWifiScan() {
if (mWifiManager.isWifiEnabled()) {
mScanner.pause();
}
}
/**
* Requests wifi module to resume wifi scan. May be ignored when the module is disabled.
*/
/* package */ void resumeWifiScan() {
if (mWifiManager.isWifiEnabled()) {
mScanner.resume();
}
}
@Override
protected int getHelpResource() {
if (mSetupWizardMode) {
return 0;
}
return R.string.help_url_wifi;
}
/**
* Used as the outer frame of all setup wizard pages that need to adjust their margins based
* on the total size of the available display. (e.g. side margins set to 10% of total width.)
*/
public static class ProportionalOuterFrame extends RelativeLayout {
public ProportionalOuterFrame(Context context) {
super(context);
}
public ProportionalOuterFrame(Context context, AttributeSet attrs) {
super(context, attrs);
}
public ProportionalOuterFrame(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
/**
* Set our margins and title area height proportionally to the available display size
*/
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int parentWidth = MeasureSpec.getSize(widthMeasureSpec);
int parentHeight = MeasureSpec.getSize(heightMeasureSpec);
final Resources resources = getContext().getResources();
float titleHeight = resources.getFraction(R.dimen.setup_title_height, 1, 1);
float sideMargin = resources.getFraction(R.dimen.setup_border_width, 1, 1);
int bottom = resources.getDimensionPixelSize(R.dimen.setup_margin_bottom);
setPadding(
(int) (parentWidth * sideMargin),
0,
(int) (parentWidth * sideMargin),
bottom);
View title = findViewById(R.id.title_area);
if (title != null) {
title.setMinimumHeight((int) (parentHeight * titleHeight));
}
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
}
}