OpenMicrophoneRequest.java
/*
* Copyright 2022 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 androidx.car.app.media;
import static java.util.Objects.requireNonNull;
import android.annotation.SuppressLint;
import androidx.annotation.Keep;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.car.app.annotations.CarProtocol;
import androidx.car.app.annotations.RequiresCarApi;
/**
* The request for a call to open microphone.
*
* <p>This is a host-side interface for handling audio callbacks. To record the microphone, use
* {@link CarAudioRecord}.
*/
@CarProtocol
@RequiresCarApi(5)
public final class OpenMicrophoneRequest {
@Keep
@Nullable
private final CarAudioCallbackDelegate mCarAudioCallbackDelegate;
OpenMicrophoneRequest(@NonNull Builder builder) {
mCarAudioCallbackDelegate = builder.mCarAudioCallbackDelegate;
}
/** Constructs an empty instance, used by serialization code. */
private OpenMicrophoneRequest() {
mCarAudioCallbackDelegate = null;
}
@NonNull
public CarAudioCallbackDelegate getCarAudioCallbackDelegate() {
return requireNonNull(mCarAudioCallbackDelegate);
}
/**
* A builder for {@link OpenMicrophoneRequest}.
*/
public static final class Builder {
@NonNull
final CarAudioCallbackDelegate mCarAudioCallbackDelegate;
@SuppressLint("ExecutorRegistration")
public Builder(@NonNull CarAudioCallback callback) {
mCarAudioCallbackDelegate = CarAudioCallbackDelegate.create(requireNonNull(callback));
}
/**
* Builds the {@link OpenMicrophoneRequest} for this builder.
*/
@NonNull
public OpenMicrophoneRequest build() {
return new OpenMicrophoneRequest(this);
}
}
}