CameraIdFilter.java
/*
* Copyright 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 androidx.camera.core.impl;
import androidx.annotation.NonNull;
import java.util.Set;
/**
* A filter that selects a certain type of camera ids from a camera id set.
*/
public interface CameraIdFilter {
/**
* Returns a set of camera ids with the same type.
*
* @param cameraIds the camera id set to be filtered.
* @return the available camera id set.
*/
@NonNull
Set<String> filter(@NonNull Set<String> cameraIds);
}