| /* |
| * Copyright 2020 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; |
| |
| import android.app.NotificationManager; |
| |
| import androidx.annotation.IntDef; |
| import androidx.annotation.Nullable; |
| import androidx.annotation.RequiresApi; |
| import androidx.annotation.RestrictTo; |
| |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| |
| /** |
| * {@code CameraUnavailableException} is thrown when a camera device could not be queried or opened |
| * or if the connection to an opened camera device is no longer valid. |
| */ |
| @RequiresApi(21) // TODO(b/200306659): Remove and replace with annotation on package-info.java |
| public class CameraUnavailableException extends Exception { |
| |
| /** |
| * Some other error occurred. |
| */ |
| public static final int CAMERA_UNKNOWN_ERROR = 0; |
| |
| /** |
| * The camera is disabled due to a device policy, and cannot be opened. |
| */ |
| public static final int CAMERA_DISABLED = 1; |
| |
| /** |
| * The camera device is removable and has been disconnected from the Android device, or the |
| * camera service has shut down the connection due to a higher-priority access request for the |
| * camera device. |
| */ |
| public static final int CAMERA_DISCONNECTED = 2; |
| |
| /** |
| * The camera device is currently in the error state. |
| * |
| * <p>The camera has failed to open or has failed at a later time as a result of some |
| * non-user interaction. |
| */ |
| public static final int CAMERA_ERROR = 3; |
| |
| |
| /** |
| * The camera device is in use already. |
| */ |
| public static final int CAMERA_IN_USE = 4; |
| |
| /** |
| * The system-wide limit for number of open cameras or camera resources has been reached, and |
| * more camera devices cannot be opened. |
| */ |
| public static final int CAMERA_MAX_IN_USE = 5; |
| |
| /** |
| * The camera is unavailable due to {@link NotificationManager.Policy}. Some API 28 devices |
| * cannot access the camera when the device is in "Do Not Disturb" mode. The camera will not |
| * be accessible until "Do Not Disturb" mode is disabled. |
| * |
| * @see NotificationManager#getCurrentInterruptionFilter() |
| * @see NotificationManager#ACTION_INTERRUPTION_FILTER_CHANGED |
| */ |
| public static final int CAMERA_UNAVAILABLE_DO_NOT_DISTURB = 6; |
| |
| @RestrictTo(RestrictTo.Scope.LIBRARY) |
| @Retention(RetentionPolicy.SOURCE) |
| @IntDef(value = { |
| CAMERA_UNKNOWN_ERROR, |
| CAMERA_DISABLED, |
| CAMERA_DISCONNECTED, |
| CAMERA_ERROR, |
| CAMERA_IN_USE, |
| CAMERA_MAX_IN_USE, |
| CAMERA_UNAVAILABLE_DO_NOT_DISTURB |
| }) |
| public @interface Reason {} |
| |
| private final int mReason; |
| |
| public CameraUnavailableException(@Reason int reason) { |
| super(); |
| mReason = reason; |
| } |
| |
| public CameraUnavailableException(@Reason int reason, @Nullable String message) { |
| super(message); |
| mReason = reason; |
| } |
| |
| public CameraUnavailableException(@Reason int reason, @Nullable String message, |
| @Nullable Throwable cause) { |
| super(message, cause); |
| mReason = reason; |
| } |
| |
| public CameraUnavailableException(@Reason int reason, @Nullable Throwable cause) { |
| super(cause); |
| mReason = reason; |
| } |
| |
| /** The reason the camera is unavailable. */ |
| @Reason |
| public int getReason() { |
| return mReason; |
| } |
| } |