| /* |
| * 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.location.provider; |
| |
| import android.annotation.NonNull; |
| import android.hardware.location.IActivityRecognitionHardware; |
| import android.hardware.location.IActivityRecognitionHardwareClient; |
| import android.os.Binder; |
| import android.os.IBinder; |
| import android.os.Process; |
| import android.os.RemoteException; |
| import android.util.Log; |
| |
| /** |
| * A client class for interaction with an Activity-Recognition provider. |
| */ |
| public abstract class ActivityRecognitionProviderClient { |
| private static final String TAG = "ArProviderClient"; |
| |
| protected ActivityRecognitionProviderClient() {} |
| |
| private IActivityRecognitionHardwareClient.Stub mClient = |
| new IActivityRecognitionHardwareClient.Stub() { |
| @Override |
| public void onAvailabilityChanged( |
| boolean isSupported, |
| IActivityRecognitionHardware instance) { |
| int callingUid = Binder.getCallingUid(); |
| if (callingUid != Process.SYSTEM_UID) { |
| Log.d(TAG, "Ignoring calls from non-system server. Uid: " + callingUid); |
| return; |
| } |
| ActivityRecognitionProvider provider; |
| try { |
| provider = isSupported ? new ActivityRecognitionProvider(instance) : null; |
| } catch (RemoteException e) { |
| Log.e(TAG, "Error creating Hardware Activity-Recognition Provider.", e); |
| return; |
| } |
| onProviderChanged(isSupported, provider); |
| } |
| }; |
| |
| /** |
| * Gets the binder needed to interact with proxy provider in the platform. |
| */ |
| @NonNull |
| public IBinder getBinder() { |
| return mClient; |
| } |
| |
| /** |
| * Called when a change in the availability of {@link ActivityRecognitionProvider} is detected. |
| * |
| * @param isSupported whether the platform supports the provider natively |
| * @param instance the available provider's instance |
| */ |
| public abstract void onProviderChanged( |
| boolean isSupported, |
| ActivityRecognitionProvider instance); |
| } |