| /* |
| * Copyright (C) 2019 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.car.settings.network; |
| |
| import android.net.ConnectivityManager; |
| import android.net.Network; |
| import android.net.NetworkCapabilities; |
| import android.telephony.TelephonyManager; |
| |
| /** Provides helpful utilities surrounding network related tasks. */ |
| public final class NetworkUtils { |
| |
| private NetworkUtils() { |
| } |
| |
| /** Returns {@code true} if device has a mobile network. */ |
| public static boolean hasMobileNetwork(ConnectivityManager connectivityManager) { |
| Network[] networks = connectivityManager.getAllNetworks(); |
| for (Network network : networks) { |
| NetworkCapabilities capabilities = connectivityManager.getNetworkCapabilities(network); |
| if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /** Returns {@code true} if device has a sim card. */ |
| public static boolean hasSim(TelephonyManager telephonyManager) { |
| int simState = telephonyManager.getSimState(); |
| |
| // Note that pulling out the SIM card returns UNKNOWN, not ABSENT. |
| return simState != TelephonyManager.SIM_STATE_ABSENT |
| && simState != TelephonyManager.SIM_STATE_UNKNOWN; |
| } |
| } |