ffb4fbb1a7
We need to properly handle asynchronous events when WifiAp for hotspot is enabled and the user changes the config. This CL changes the behavior to: 1 - mark local boolean indicating a restart is needed 2 - trigger the WifiAp to stop 3 - save the new config 4 - when the stop is complete (and the boolean is set), restart the WifiAp. Also fix a few style issues in the file. BUG:27460194 Change-Id: I7e49ab9c49e125017cf83866a396701e440bf383
578 lines
22 KiB
Java
578 lines
22 KiB
Java
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings;
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import static android.net.ConnectivityManager.TETHERING_BLUETOOTH;
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import static android.net.ConnectivityManager.TETHERING_USB;
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import static android.net.ConnectivityManager.TETHERING_WIFI;
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import android.app.Activity;
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import android.app.Dialog;
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import android.bluetooth.BluetoothAdapter;
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import android.bluetooth.BluetoothPan;
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import android.bluetooth.BluetoothProfile;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.DialogInterface;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.content.pm.PackageManager;
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import android.hardware.usb.UsbManager;
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import android.net.ConnectivityManager;
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import android.net.wifi.WifiConfiguration;
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import android.net.wifi.WifiManager;
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import android.os.Bundle;
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import android.os.Environment;
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import android.os.Handler;
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import android.os.UserManager;
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import android.support.v14.preference.SwitchPreference;
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import android.support.v7.preference.Preference;
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import android.support.v7.preference.PreferenceScreen;
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import android.util.Log;
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import com.android.internal.logging.MetricsProto.MetricsEvent;
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import com.android.settings.wifi.WifiApDialog;
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import com.android.settings.wifi.WifiApEnabler;
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import com.android.settingslib.TetherUtil;
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import java.lang.ref.WeakReference;
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import java.util.ArrayList;
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import java.util.concurrent.atomic.AtomicReference;
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/*
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* Displays preferences for Tethering.
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*/
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public class TetherSettings extends RestrictedSettingsFragment
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implements DialogInterface.OnClickListener, Preference.OnPreferenceChangeListener {
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private static final String USB_TETHER_SETTINGS = "usb_tether_settings";
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private static final String ENABLE_WIFI_AP = "enable_wifi_ap";
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private static final String ENABLE_BLUETOOTH_TETHERING = "enable_bluetooth_tethering";
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private static final String TETHER_CHOICE = "TETHER_TYPE";
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private static final int DIALOG_AP_SETTINGS = 1;
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private static final String TAG = "TetheringSettings";
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private SwitchPreference mUsbTether;
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private WifiApEnabler mWifiApEnabler;
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private SwitchPreference mEnableWifiAp;
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private SwitchPreference mBluetoothTether;
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private BroadcastReceiver mTetherChangeReceiver;
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private String[] mUsbRegexs;
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private String[] mWifiRegexs;
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private String[] mBluetoothRegexs;
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private AtomicReference<BluetoothPan> mBluetoothPan = new AtomicReference<BluetoothPan>();
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private Handler mHandler = new Handler();
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private OnStartTetheringCallback mStartTetheringCallback;
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private static final String WIFI_AP_SSID_AND_SECURITY = "wifi_ap_ssid_and_security";
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private static final int CONFIG_SUBTEXT = R.string.wifi_tether_configure_subtext;
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private String[] mSecurityType;
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private Preference mCreateNetwork;
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private WifiApDialog mDialog;
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private WifiManager mWifiManager;
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private WifiConfiguration mWifiConfig = null;
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private ConnectivityManager mCm;
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private boolean mRestartWifiApAfterConfigChange;
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private boolean mUsbConnected;
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private boolean mMassStorageActive;
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private boolean mBluetoothEnableForTether;
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/* Stores the package name and the class name of the provisioning app */
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private String[] mProvisionApp;
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private static final int PROVISION_REQUEST = 0;
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private boolean mUnavailable;
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@Override
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protected int getMetricsCategory() {
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return MetricsEvent.TETHER;
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}
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public TetherSettings() {
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super(UserManager.DISALLOW_CONFIG_TETHERING);
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}
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@Override
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public void onCreate(Bundle icicle) {
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super.onCreate(icicle);
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addPreferencesFromResource(R.xml.tether_prefs);
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setIfOnlyAvailableForAdmins(true);
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if (isUiRestricted()) {
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mUnavailable = true;
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setPreferenceScreen(new PreferenceScreen(getPrefContext(), null));
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return;
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}
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final Activity activity = getActivity();
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BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
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if (adapter != null) {
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adapter.getProfileProxy(activity.getApplicationContext(), mProfileServiceListener,
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BluetoothProfile.PAN);
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}
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mEnableWifiAp =
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(SwitchPreference) findPreference(ENABLE_WIFI_AP);
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Preference wifiApSettings = findPreference(WIFI_AP_SSID_AND_SECURITY);
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mUsbTether = (SwitchPreference) findPreference(USB_TETHER_SETTINGS);
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mBluetoothTether = (SwitchPreference) findPreference(ENABLE_BLUETOOTH_TETHERING);
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mCm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
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mUsbRegexs = mCm.getTetherableUsbRegexs();
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mWifiRegexs = mCm.getTetherableWifiRegexs();
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mBluetoothRegexs = mCm.getTetherableBluetoothRegexs();
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final boolean usbAvailable = mUsbRegexs.length != 0;
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final boolean wifiAvailable = mWifiRegexs.length != 0;
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final boolean bluetoothAvailable = mBluetoothRegexs.length != 0;
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if (!usbAvailable || Utils.isMonkeyRunning()) {
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getPreferenceScreen().removePreference(mUsbTether);
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}
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if (wifiAvailable && !Utils.isMonkeyRunning()) {
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mWifiApEnabler = new WifiApEnabler(activity, mEnableWifiAp);
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initWifiTethering();
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} else {
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getPreferenceScreen().removePreference(mEnableWifiAp);
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getPreferenceScreen().removePreference(wifiApSettings);
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}
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if (!bluetoothAvailable) {
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getPreferenceScreen().removePreference(mBluetoothTether);
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} else {
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BluetoothPan pan = mBluetoothPan.get();
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if (pan != null && pan.isTetheringOn()) {
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mBluetoothTether.setChecked(true);
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} else {
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mBluetoothTether.setChecked(false);
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}
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}
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}
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private void initWifiTethering() {
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final Activity activity = getActivity();
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mWifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
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mWifiConfig = mWifiManager.getWifiApConfiguration();
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mSecurityType = getResources().getStringArray(R.array.wifi_ap_security);
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mCreateNetwork = findPreference(WIFI_AP_SSID_AND_SECURITY);
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mRestartWifiApAfterConfigChange = false;
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if (mWifiConfig == null) {
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final String s = activity.getString(
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com.android.internal.R.string.wifi_tether_configure_ssid_default);
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mCreateNetwork.setSummary(String.format(activity.getString(CONFIG_SUBTEXT),
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s, mSecurityType[WifiApDialog.OPEN_INDEX]));
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} else {
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int index = WifiApDialog.getSecurityTypeIndex(mWifiConfig);
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mCreateNetwork.setSummary(String.format(activity.getString(CONFIG_SUBTEXT),
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mWifiConfig.SSID,
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mSecurityType[index]));
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}
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}
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@Override
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public Dialog onCreateDialog(int id) {
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if (id == DIALOG_AP_SETTINGS) {
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final Activity activity = getActivity();
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mDialog = new WifiApDialog(activity, this, mWifiConfig);
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return mDialog;
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}
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return null;
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}
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private class TetherChangeReceiver extends BroadcastReceiver {
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@Override
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public void onReceive(Context content, Intent intent) {
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String action = intent.getAction();
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if (action.equals(ConnectivityManager.ACTION_TETHER_STATE_CHANGED)) {
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// TODO - this should understand the interface types
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ArrayList<String> available = intent.getStringArrayListExtra(
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ConnectivityManager.EXTRA_AVAILABLE_TETHER);
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ArrayList<String> active = intent.getStringArrayListExtra(
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ConnectivityManager.EXTRA_ACTIVE_TETHER);
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ArrayList<String> errored = intent.getStringArrayListExtra(
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ConnectivityManager.EXTRA_ERRORED_TETHER);
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updateState(available.toArray(new String[available.size()]),
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active.toArray(new String[active.size()]),
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errored.toArray(new String[errored.size()]));
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if (mWifiManager.getWifiApState() == WifiManager.WIFI_AP_STATE_DISABLED
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&& mRestartWifiApAfterConfigChange) {
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mRestartWifiApAfterConfigChange = false;
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Log.d(TAG, "Restarting WifiAp due to prior config change.");
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startTethering(TETHERING_WIFI);
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}
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} else if (action.equals(Intent.ACTION_MEDIA_SHARED)) {
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mMassStorageActive = true;
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updateState();
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} else if (action.equals(Intent.ACTION_MEDIA_UNSHARED)) {
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mMassStorageActive = false;
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updateState();
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} else if (action.equals(UsbManager.ACTION_USB_STATE)) {
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mUsbConnected = intent.getBooleanExtra(UsbManager.USB_CONNECTED, false);
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updateState();
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} else if (action.equals(BluetoothAdapter.ACTION_STATE_CHANGED)) {
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if (mBluetoothEnableForTether) {
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switch (intent
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.getIntExtra(BluetoothAdapter.EXTRA_STATE, BluetoothAdapter.ERROR)) {
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case BluetoothAdapter.STATE_ON:
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startTethering(TETHERING_BLUETOOTH);
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mBluetoothEnableForTether = false;
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break;
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case BluetoothAdapter.STATE_OFF:
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case BluetoothAdapter.ERROR:
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mBluetoothEnableForTether = false;
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break;
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default:
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// ignore transition states
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}
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}
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updateState();
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}
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}
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}
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@Override
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public void onStart() {
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super.onStart();
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if (mUnavailable) {
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if (!isUiRestrictedByOnlyAdmin()) {
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getEmptyTextView().setText(R.string.tethering_settings_not_available);
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}
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getPreferenceScreen().removeAll();
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return;
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}
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final Activity activity = getActivity();
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mStartTetheringCallback = new OnStartTetheringCallback(this);
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mMassStorageActive = Environment.MEDIA_SHARED.equals(Environment.getExternalStorageState());
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mTetherChangeReceiver = new TetherChangeReceiver();
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IntentFilter filter = new IntentFilter(ConnectivityManager.ACTION_TETHER_STATE_CHANGED);
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Intent intent = activity.registerReceiver(mTetherChangeReceiver, filter);
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filter = new IntentFilter();
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filter.addAction(UsbManager.ACTION_USB_STATE);
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activity.registerReceiver(mTetherChangeReceiver, filter);
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filter = new IntentFilter();
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filter.addAction(Intent.ACTION_MEDIA_SHARED);
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filter.addAction(Intent.ACTION_MEDIA_UNSHARED);
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filter.addDataScheme("file");
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activity.registerReceiver(mTetherChangeReceiver, filter);
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filter = new IntentFilter();
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filter.addAction(BluetoothAdapter.ACTION_STATE_CHANGED);
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activity.registerReceiver(mTetherChangeReceiver, filter);
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if (intent != null) mTetherChangeReceiver.onReceive(activity, intent);
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if (mWifiApEnabler != null) {
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mEnableWifiAp.setOnPreferenceChangeListener(this);
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mWifiApEnabler.resume();
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}
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updateState();
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}
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@Override
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public void onStop() {
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super.onStop();
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if (mUnavailable) {
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return;
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}
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getActivity().unregisterReceiver(mTetherChangeReceiver);
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mTetherChangeReceiver = null;
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mStartTetheringCallback = null;
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if (mWifiApEnabler != null) {
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mEnableWifiAp.setOnPreferenceChangeListener(null);
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mWifiApEnabler.pause();
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}
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}
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private void updateState() {
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String[] available = mCm.getTetherableIfaces();
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String[] tethered = mCm.getTetheredIfaces();
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String[] errored = mCm.getTetheringErroredIfaces();
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updateState(available, tethered, errored);
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}
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private void updateState(String[] available, String[] tethered,
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String[] errored) {
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updateUsbState(available, tethered, errored);
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updateBluetoothState(available, tethered, errored);
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}
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private void updateUsbState(String[] available, String[] tethered,
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String[] errored) {
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boolean usbAvailable = mUsbConnected && !mMassStorageActive;
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int usbError = ConnectivityManager.TETHER_ERROR_NO_ERROR;
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for (String s : available) {
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for (String regex : mUsbRegexs) {
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if (s.matches(regex)) {
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if (usbError == ConnectivityManager.TETHER_ERROR_NO_ERROR) {
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usbError = mCm.getLastTetherError(s);
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}
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}
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}
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}
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boolean usbTethered = false;
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for (String s : tethered) {
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for (String regex : mUsbRegexs) {
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if (s.matches(regex)) usbTethered = true;
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}
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}
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boolean usbErrored = false;
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for (String s: errored) {
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for (String regex : mUsbRegexs) {
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if (s.matches(regex)) usbErrored = true;
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}
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}
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if (usbTethered) {
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mUsbTether.setSummary(R.string.usb_tethering_active_subtext);
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mUsbTether.setEnabled(true);
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mUsbTether.setChecked(true);
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} else if (usbAvailable) {
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if (usbError == ConnectivityManager.TETHER_ERROR_NO_ERROR) {
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mUsbTether.setSummary(R.string.usb_tethering_available_subtext);
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} else {
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mUsbTether.setSummary(R.string.usb_tethering_errored_subtext);
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}
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mUsbTether.setEnabled(true);
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mUsbTether.setChecked(false);
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} else if (usbErrored) {
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mUsbTether.setSummary(R.string.usb_tethering_errored_subtext);
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mUsbTether.setEnabled(false);
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mUsbTether.setChecked(false);
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} else if (mMassStorageActive) {
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mUsbTether.setSummary(R.string.usb_tethering_storage_active_subtext);
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mUsbTether.setEnabled(false);
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mUsbTether.setChecked(false);
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} else {
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mUsbTether.setSummary(R.string.usb_tethering_unavailable_subtext);
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mUsbTether.setEnabled(false);
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mUsbTether.setChecked(false);
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}
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}
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private void updateBluetoothState(String[] available, String[] tethered,
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String[] errored) {
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boolean bluetoothErrored = false;
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for (String s: errored) {
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for (String regex : mBluetoothRegexs) {
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if (s.matches(regex)) bluetoothErrored = true;
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}
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}
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BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
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if (adapter == null) {
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return;
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}
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int btState = adapter.getState();
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if (btState == BluetoothAdapter.STATE_TURNING_OFF) {
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mBluetoothTether.setEnabled(false);
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mBluetoothTether.setSummary(R.string.bluetooth_turning_off);
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} else if (btState == BluetoothAdapter.STATE_TURNING_ON) {
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mBluetoothTether.setEnabled(false);
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mBluetoothTether.setSummary(R.string.bluetooth_turning_on);
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} else {
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BluetoothPan bluetoothPan = mBluetoothPan.get();
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if (btState == BluetoothAdapter.STATE_ON && bluetoothPan != null
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&& bluetoothPan.isTetheringOn()) {
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mBluetoothTether.setChecked(true);
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mBluetoothTether.setEnabled(true);
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int bluetoothTethered = bluetoothPan.getConnectedDevices().size();
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if (bluetoothTethered > 1) {
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String summary = getString(
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R.string.bluetooth_tethering_devices_connected_subtext,
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bluetoothTethered);
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mBluetoothTether.setSummary(summary);
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} else if (bluetoothTethered == 1) {
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mBluetoothTether.setSummary(
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R.string.bluetooth_tethering_device_connected_subtext);
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} else if (bluetoothErrored) {
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mBluetoothTether.setSummary(R.string.bluetooth_tethering_errored_subtext);
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} else {
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mBluetoothTether.setSummary(R.string.bluetooth_tethering_available_subtext);
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}
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} else {
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mBluetoothTether.setEnabled(true);
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mBluetoothTether.setChecked(false);
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mBluetoothTether.setSummary(R.string.bluetooth_tethering_off_subtext);
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}
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}
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}
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@Override
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public boolean onPreferenceChange(Preference preference, Object value) {
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boolean enable = (Boolean) value;
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if (enable) {
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startTethering(TETHERING_WIFI);
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} else {
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mCm.stopTethering(TETHERING_WIFI);
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}
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return false;
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}
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public static boolean isProvisioningNeededButUnavailable(Context context) {
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return (TetherUtil.isProvisioningNeeded(context)
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&& !isIntentAvailable(context));
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}
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private static boolean isIntentAvailable(Context context) {
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String[] provisionApp = context.getResources().getStringArray(
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com.android.internal.R.array.config_mobile_hotspot_provision_app);
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final PackageManager packageManager = context.getPackageManager();
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Intent intent = new Intent(Intent.ACTION_MAIN);
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intent.setClassName(provisionApp[0], provisionApp[1]);
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return (packageManager.queryIntentActivities(intent,
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PackageManager.MATCH_DEFAULT_ONLY).size() > 0);
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}
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private void startTethering(int choice) {
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if (choice == TETHERING_BLUETOOTH) {
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// Turn on Bluetooth first.
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BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
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if (adapter.getState() == BluetoothAdapter.STATE_OFF) {
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mBluetoothEnableForTether = true;
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adapter.enable();
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mBluetoothTether.setSummary(R.string.bluetooth_turning_on);
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mBluetoothTether.setEnabled(false);
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return;
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}
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}
|
|
|
|
mCm.startTethering(choice, true, mStartTetheringCallback, mHandler);
|
|
}
|
|
|
|
@Override
|
|
public boolean onPreferenceTreeClick(Preference preference) {
|
|
if (preference == mUsbTether) {
|
|
if (mUsbTether.isChecked()) {
|
|
startTethering(TETHERING_USB);
|
|
} else {
|
|
mCm.stopTethering(TETHERING_USB);
|
|
}
|
|
} else if (preference == mBluetoothTether) {
|
|
if (mBluetoothTether.isChecked()) {
|
|
startTethering(TETHERING_BLUETOOTH);
|
|
} else {
|
|
mCm.stopTethering(TETHERING_BLUETOOTH);
|
|
// No ACTION_TETHER_STATE_CHANGED is fired or bluetooth unless a device is
|
|
// connected. Need to update state manually.
|
|
updateState();
|
|
}
|
|
} else if (preference == mCreateNetwork) {
|
|
showDialog(DIALOG_AP_SETTINGS);
|
|
}
|
|
|
|
return super.onPreferenceTreeClick(preference);
|
|
}
|
|
|
|
public void onClick(DialogInterface dialogInterface, int button) {
|
|
if (button == DialogInterface.BUTTON_POSITIVE) {
|
|
mWifiConfig = mDialog.getConfig();
|
|
if (mWifiConfig != null) {
|
|
/**
|
|
* if soft AP is stopped, bring up
|
|
* else restart with new config
|
|
* TODO: update config on a running access point when framework support is added
|
|
*/
|
|
if (mWifiManager.getWifiApState() == WifiManager.WIFI_AP_STATE_ENABLED) {
|
|
Log.d("TetheringSettings",
|
|
"Wifi AP config changed while enabled, stop and restart");
|
|
mRestartWifiApAfterConfigChange = true;
|
|
mCm.stopTethering(TETHERING_WIFI);
|
|
}
|
|
mWifiManager.setWifiApConfiguration(mWifiConfig);
|
|
int index = WifiApDialog.getSecurityTypeIndex(mWifiConfig);
|
|
mCreateNetwork.setSummary(String.format(getActivity().getString(CONFIG_SUBTEXT),
|
|
mWifiConfig.SSID,
|
|
mSecurityType[index]));
|
|
}
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public int getHelpResource() {
|
|
return R.string.help_url_tether;
|
|
}
|
|
|
|
private BluetoothProfile.ServiceListener mProfileServiceListener =
|
|
new BluetoothProfile.ServiceListener() {
|
|
public void onServiceConnected(int profile, BluetoothProfile proxy) {
|
|
mBluetoothPan.set((BluetoothPan) proxy);
|
|
}
|
|
public void onServiceDisconnected(int profile) {
|
|
mBluetoothPan.set(null);
|
|
}
|
|
};
|
|
|
|
private static final class OnStartTetheringCallback extends
|
|
ConnectivityManager.OnStartTetheringCallback {
|
|
final WeakReference<TetherSettings> mTetherSettings;
|
|
|
|
OnStartTetheringCallback(TetherSettings settings) {
|
|
mTetherSettings = new WeakReference<TetherSettings>(settings);
|
|
}
|
|
|
|
@Override
|
|
public void onTetheringStarted() {
|
|
update();
|
|
}
|
|
|
|
@Override
|
|
public void onTetheringFailed() {
|
|
update();
|
|
}
|
|
|
|
private void update() {
|
|
TetherSettings settings = mTetherSettings.get();
|
|
if (settings != null) {
|
|
settings.updateState();
|
|
}
|
|
}
|
|
}
|
|
}
|