1 /*
2  * Copyright (c) 2023 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 #ifndef SWITCH_OBSERVER_H
16 #define SWITCH_OBSERVER_H
17 
18 #include <functional>
19 #include "data_ability_observer_stub.h"
20 
21 namespace OHOS {
22 namespace IntellVoiceEngine {
23 using UpdateFunc = std::function<void()>;
24 
25 class SwitchObserver : public AAFwk::DataAbilityObserverStub {
26 public:
27     SwitchObserver() = default;
28     virtual ~SwitchObserver() = default;
29     void OnChange() override;
30     void SetUpdateFunc(UpdateFunc func);
31 
32 private:
33     UpdateFunc update_ = nullptr;
34 };
35 }  // namespace IntellVoice
36 }  // namespace OHOS
37 #endif