public class

LegacyCameraOutputConfigNullPointerQuirk

extends java.lang.Object

implements Quirk

 java.lang.Object

↳androidx.camera.camera2.internal.compat.quirk.LegacyCameraOutputConfigNullPointerQuirk

Gradle dependencies

compile group: 'androidx.camera', name: 'camera-camera2', version: '1.5.0-alpha01'

  • groupId: androidx.camera
  • artifactId: camera-camera2
  • version: 1.5.0-alpha01

Artifact androidx.camera:camera-camera2:1.5.0-alpha01 it located at Google repository (https://maven.google.com/)

Overview

Quirk addressing null pointer issue during CameraCaptureSession configuration.

QuirkSummary Bug Id: 237341513 Description: An incorrect state in the legacy Camera2 framework can lead to a null pointer exception when configuring a second CameraCaptureSession with `getSurface()`. This workaround prevents the issue by proactively closing and reopening the camera device. Device(s): Affects devices with LEGACY camera hardware level (API levels greater than M).

Summary

Constructors
publicLegacyCameraOutputConfigNullPointerQuirk()

Methods
from java.lang.Objectclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructors

public LegacyCameraOutputConfigNullPointerQuirk()

Source

/*
 * Copyright 2024 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.camera2.internal.compat.quirk;

import android.hardware.camera2.CameraCharacteristics;
import android.os.Build;

import androidx.annotation.NonNull;
import androidx.camera.camera2.internal.compat.CameraCharacteristicsCompat;
import androidx.camera.core.impl.Quirk;

/**
 * Quirk addressing null pointer issue during CameraCaptureSession configuration.
 *
 * <p>QuirkSummary
 *    Bug Id: 237341513
 *    Description: An incorrect state in the legacy Camera2 framework can lead to a
 *                 null pointer exception when configuring a second CameraCaptureSession
 *                 with `getSurface()`. This workaround prevents the issue by proactively
 *                 closing and reopening the camera device.
 *    Device(s): Affects devices with LEGACY camera hardware level (API levels greater than M).
 */
public class LegacyCameraOutputConfigNullPointerQuirk implements Quirk {

    static boolean load(@NonNull CameraCharacteristicsCompat characteristics) {
        Integer level = characteristics.get(
                CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL);
        return Build.VERSION.SDK_INT > Build.VERSION_CODES.M && level != null
                && level == CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY;
    }
}