CameraExecutors.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.camera.viewfinder.internal.utils.executor;
import androidx.annotation.NonNull;
import androidx.annotation.RequiresApi;
import java.util.concurrent.Executor;
import java.util.concurrent.ScheduledExecutorService;
/**
* Utility class for generating specific implementations of {@link Executor}.
*/
@RequiresApi(21) // TODO(b/200306659): Remove and replace with annotation on package-info.java
public final class CameraExecutors {
// Should not be instantiated
private CameraExecutors() {
}
/** Returns a cached {@link ScheduledExecutorService} which posts to the main thread. */
@NonNull
public static ScheduledExecutorService mainThreadExecutor() {
return MainThreadExecutor.getInstance();
}
/** Returns a cached executor that runs tasks directly from the calling thread. */
@NonNull
public static Executor directExecutor() {
return DirectExecutor.getInstance();
}
}