81 lines
3.3 KiB
Java
81 lines
3.3 KiB
Java
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/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.rotationresolver;
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import android.annotation.DurationMillisLong;
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import android.annotation.NonNull;
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import android.os.CancellationSignal;
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import android.service.rotationresolver.RotationResolverService;
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import android.view.Surface;
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/**
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* Internal service for resolving screen rotation.
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*
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* @hide Only for use within the system server.
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*/
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public abstract class RotationResolverInternal {
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/**
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* Returns {@code true} if rotation resolver service is supported on the current device.
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*/
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public abstract boolean isRotationResolverSupported();
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/**
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* Queries the appropriate screen orientation.
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*
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* <p> The screen rotation that's proposed by the system may not be accurate enough. This method
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* is available for the system to request a screen rotation resolution from the {@link
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* RotationResolverService}, which can intelligently determine the appropriate screen rotation
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* based on various sensors.
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*
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* @param callback the callback that will be called when the result is computed or an
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* error is captured. {@link RotationResolverCallbackInternal}
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* @param packageName the package name of the fore ground activity.
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* @param proposedRotation the screen rotation that is proposed by the system.
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* @param currentRotation the current screen rotation.
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* @param timeoutMillis the timeout in millisecond for the query. If the query doesn't get
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* fulfilled within this amount of time. It will be discarded and the
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* callback will receive a failure result code {@link
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* RotationResolverService#ROTATION_RESULT_FAILURE_TIMED_OUT}.
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* @param cancellationSignal a cancellation signal that notifies the rotation resolver manger
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*/
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public abstract void resolveRotation(@NonNull RotationResolverCallbackInternal callback,
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String packageName, @Surface.Rotation int proposedRotation,
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@Surface.Rotation int currentRotation, @DurationMillisLong long timeoutMillis,
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@NonNull CancellationSignal cancellationSignal);
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/**
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* Internal interfaces for the rotation resolver callback.
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*/
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public interface RotationResolverCallbackInternal {
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/**
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* Gets called when the screen rotation is calculated successfully.
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*
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* @param result the resolved screen rotation.
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*/
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void onSuccess(@Surface.Rotation int result);
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/**
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* Gets called when it fails to resolve the screen rotation.
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*
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* @param error the reason of the failure.
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*/
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void onFailure(@RotationResolverService.FailureCodes int error);
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}
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}
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