1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License 15 */ 16 package com.android.settings.connecteddevice.dock; 17 18 import android.annotation.NonNull; 19 import android.content.Context; 20 21 /** 22 * Update the dock devices. It notifies the upper level whether to add/remove the preference 23 * through {@link DevicePreferenceCallback} 24 */ 25 public interface DockUpdater { 26 27 /** 28 * Register the dock event callback and update the list 29 */ registerCallback()30 default void registerCallback() { 31 } 32 33 /** 34 * Unregister the dock event callback 35 */ unregisterCallback()36 default void unregisterCallback() { 37 } 38 39 /** 40 * Force to update the list of dock devices 41 */ forceUpdate()42 default void forceUpdate() { 43 } 44 45 /** 46 * Set the context to generate the {@link Preference}, so it could get the correct theme. 47 */ setPreferenceContext(@onNull Context preferenceContext)48 default void setPreferenceContext(@NonNull Context preferenceContext) { 49 } 50 } 51