1 /* 2 * Copyright (C) 2017 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.wallpaper.module; 17 18 import android.content.Context; 19 20 /** 21 * Interface for objects which refresh the current wallpaper in a rotation. 22 */ 23 public interface WallpaperRotationRefresher { 24 refreshWallpaper(Context context, Listener listener)25 void refreshWallpaper(Context context, Listener listener); 26 27 /** 28 * Listener interface for clients to asynchronously receive status of wallpaper rotation refresh 29 * tasks. 30 */ 31 interface Listener { 32 33 /** 34 * Called when a new wallpaper in the rotation has successfully been set to the device. 35 */ onRefreshed()36 void onRefreshed(); 37 38 /** 39 * Called when there was an error setting a new wallpaper in the rotation to the device. 40 */ onError()41 void onError(); 42 } 43 } 44