107 lines
4.3 KiB
Java
107 lines
4.3 KiB
Java
/*
|
|
* 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.settingslib;
|
|
|
|
import android.app.ActivityManager;
|
|
import android.content.ComponentName;
|
|
import android.content.ContentResolver;
|
|
import android.content.Context;
|
|
import android.content.res.Resources;
|
|
import android.net.ConnectivityManager;
|
|
import android.net.wifi.WifiManager;
|
|
import android.os.SystemProperties;
|
|
import android.os.UserHandle;
|
|
import android.provider.Settings;
|
|
|
|
public class TetherUtil {
|
|
|
|
// Types of tethering.
|
|
public static final int TETHERING_INVALID = -1;
|
|
public static final int TETHERING_WIFI = 0;
|
|
public static final int TETHERING_USB = 1;
|
|
public static final int TETHERING_BLUETOOTH = 2;
|
|
|
|
// Extras used for communicating with the TetherService.
|
|
public static final String EXTRA_ADD_TETHER_TYPE = "extraAddTetherType";
|
|
public static final String EXTRA_REM_TETHER_TYPE = "extraRemTetherType";
|
|
public static final String EXTRA_SET_ALARM = "extraSetAlarm";
|
|
/**
|
|
* Tells the service to run a provision check now.
|
|
*/
|
|
public static final String EXTRA_RUN_PROVISION = "extraRunProvision";
|
|
/**
|
|
* Enables wifi tethering if the provision check is successful. Used by
|
|
* QS to enable tethering.
|
|
*/
|
|
public static final String EXTRA_ENABLE_WIFI_TETHER = "extraEnableWifiTether";
|
|
|
|
public static ComponentName TETHER_SERVICE = ComponentName.unflattenFromString(Resources
|
|
.getSystem().getString(com.android.internal.R.string.config_wifi_tether_enable));
|
|
|
|
public static boolean setWifiTethering(boolean enable, Context context) {
|
|
final WifiManager wifiManager =
|
|
(WifiManager) context.getSystemService(Context.WIFI_SERVICE);
|
|
final ContentResolver cr = context.getContentResolver();
|
|
/**
|
|
* Disable Wifi if enabling tethering
|
|
*/
|
|
int wifiState = wifiManager.getWifiState();
|
|
if (enable && ((wifiState == WifiManager.WIFI_STATE_ENABLING) ||
|
|
(wifiState == WifiManager.WIFI_STATE_ENABLED))) {
|
|
wifiManager.setWifiEnabled(false);
|
|
Settings.Global.putInt(cr, Settings.Global.WIFI_SAVED_STATE, 1);
|
|
}
|
|
|
|
boolean success = wifiManager.setWifiApEnabled(null, enable);
|
|
/**
|
|
* If needed, restore Wifi on tether disable
|
|
*/
|
|
if (!enable) {
|
|
int wifiSavedState = Settings.Global.getInt(cr, Settings.Global.WIFI_SAVED_STATE, 0);
|
|
if (wifiSavedState == 1) {
|
|
wifiManager.setWifiEnabled(true);
|
|
Settings.Global.putInt(cr, Settings.Global.WIFI_SAVED_STATE, 0);
|
|
}
|
|
}
|
|
return success;
|
|
}
|
|
|
|
public static boolean isWifiTetherEnabled(Context context) {
|
|
WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
|
|
return wifiManager.getWifiApState() == WifiManager.WIFI_AP_STATE_ENABLED;
|
|
}
|
|
|
|
public static boolean isProvisioningNeeded(Context context) {
|
|
// Keep in sync with other usage of config_mobile_hotspot_provision_app.
|
|
// ConnectivityManager#enforceTetherChangePermission
|
|
String[] provisionApp = context.getResources().getStringArray(
|
|
com.android.internal.R.array.config_mobile_hotspot_provision_app);
|
|
if (SystemProperties.getBoolean("net.tethering.noprovisioning", false)
|
|
|| provisionApp == null) {
|
|
return false;
|
|
}
|
|
return (provisionApp.length == 2);
|
|
}
|
|
|
|
public static boolean isTetheringSupported(Context context) {
|
|
final ConnectivityManager cm =
|
|
(ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
|
|
final boolean isSecondaryUser = ActivityManager.getCurrentUser() != UserHandle.USER_OWNER;
|
|
return !isSecondaryUser && cm.isTetheringSupported();
|
|
}
|
|
|
|
}
|