1 /* 2 * Copyright (C) 2022 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.net.connectivity; 18 19 import android.content.Context; 20 import android.net.ConnectivityManager; 21 import android.os.Build; 22 import android.os.IBinder; 23 24 import androidx.annotation.RequiresApi; 25 26 /** 27 * Utility providing limited access to module-internal APIs which are only available on Android T+, 28 * as this class is only in the bootclasspath on T+ as part of framework-connectivity. 29 * 30 * R+ module components like Tethering cannot depend on all hidden symbols from 31 * framework-connectivity. They only have access to stable API stubs where newer APIs can be 32 * accessed after an API level check (enforced by the linter), or to limited hidden symbols in this 33 * class which is also annotated with @RequiresApi (so API level checks are also enforced by the 34 * linter). 35 * @hide 36 */ 37 @RequiresApi(Build.VERSION_CODES.TIRAMISU) 38 public class TiramisuConnectivityInternalApiUtil { 39 40 /** 41 * Get a service binder token for 42 * {@link com.android.server.connectivity.wear.CompanionDeviceManagerProxyService}. 43 */ getCompanionDeviceManagerProxyService(Context ctx)44 public static IBinder getCompanionDeviceManagerProxyService(Context ctx) { 45 final ConnectivityManager cm = ctx.getSystemService(ConnectivityManager.class); 46 return cm.getCompanionDeviceManagerProxyService(); 47 } 48 } 49