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/*
* Copyright (C) 2013 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 android.nfc;
import android.nfc.Tag;
import java.util.List;
/**
* Interface to NFC unlock functionality.
*
* @hide
*/
interface INfcUnlockSettings {
/**
* Checks the validity of the tag and attempts to unlock the screen.
*
* @return true if the screen was successfuly unlocked.
*/
boolean tryUnlock(int userId, in Tag tag);
/**
* Registers the given tag as an unlock tag. Subsequent calls to {@code tryUnlock}
* with the same {@code tag} should succeed.
*
* @return true if the tag was successfully registered.
*/
boolean registerTag(int userId, in Tag tag);
/**
* Deregisters the tag with the corresponding timestamp.
* Subsequent calls to {@code tryUnlock} with the same tag should fail.
*
* @return true if the tag was successfully deleted.
*/
boolean deregisterTag(int userId, long timestamp);
/**
* Used for user-visible rendering of registered tags.
*
* @return a list of the times in millis since epoch when the registered tags were paired.
*/
long[] getTagRegistryTimes(int userId);
/**
* Determines the state of the NFC unlock feature.
*
* @return true if NFC unlock is enabled.
*/
boolean getNfcUnlockEnabled(int userId);
/**
* Sets the state [ON | OFF] of the NFC unlock feature.
*/
void setNfcUnlockEnabled(int userId, boolean enabled);
}
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