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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.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);
return wifiManager.setWifiApEnabled(null, enable);
}
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();
}
}
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