1/*
2 * Copyright (C) 2016 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
18#ifndef ACTIVITYEVENTHANDLER_H_
19#define ACTIVITYEVENTHANDLER_H_
20
21namespace android {
22
23/*
24 * An interface that specifies an event handler for activity sensor events.
25 */
26class ActivityEventHandler {
27  public:
28    virtual ~ActivityEventHandler() {}
29
30    // Invoked when an activity recognition event has occured.
31    //
32    // activityIndex - The index of the activity sensor.
33    // eventIndex - The event index (enter/exit).
34    // whenNs - The timestamp of when the event occured.
35    virtual void OnActivityEvent(int sensorIndex, uint8_t eventIndex,
36                                 uint64_t whenNs) = 0;
37
38    // Invoked when an activity recognition flush is requested.
39    virtual void OnFlush() = 0;
40
41    // Invoked when a sensor hub reset has occured. This is used to reset any
42    // internal state.
43    virtual void OnSensorHubReset() = 0;
44};
45
46}  // namespace android
47
48#endif  // ACTIVITYEVENTHANDLER_H_
49