| /* |
| * 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.experimentalcar; |
| |
| import android.car.experimental.DriverAwarenessEvent; |
| import android.car.experimental.DriverAwarenessSupplierService; |
| import android.content.Intent; |
| import android.os.IBinder; |
| import android.os.SystemClock; |
| import android.util.Log; |
| |
| /** |
| * Simple example of how an external driver awareness supplier service could be implemented. |
| */ |
| public class SampleExternalDriverAwarenessSupplier extends DriverAwarenessSupplierService { |
| |
| private static final String TAG = "SampleExternalDriverAwarenessSupplier"; |
| private static final float INITIAL_DRIVER_AWARENESS_VALUE = 1.0f; |
| private static final long MAX_STALENESS_MILLIS = 100L; |
| |
| @Override |
| public long getMaxStalenessMillis() { |
| return MAX_STALENESS_MILLIS; |
| } |
| |
| @Override |
| public void onReady() { |
| // send an initial event, as required by the IDriverAwarenessSupplierCallback spec |
| onDriverAwarenessUpdated(new DriverAwarenessEvent(SystemClock.elapsedRealtime(), |
| INITIAL_DRIVER_AWARENESS_VALUE)); |
| } |
| |
| @Override |
| public IBinder onBind(Intent intent) { |
| logd("onBind, intent: " + intent); |
| return super.onBind(intent); |
| } |
| |
| private static void logd(String message) { |
| if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Log.d(TAG, message); |
| } |
| } |
| } |