1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file 5 * except in compliance with the License. You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software distributed under the 10 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 11 * KIND, either express or implied. See the License for the specific language governing 12 * permissions and limitations under the License. 13 */ 14 15 package com.android.systemui.plugins; 16 17 import android.content.Context; 18 19 /** 20 * Interface for listening to plugins being connected. 21 */ 22 public interface PluginListener<T extends Plugin> { 23 /** 24 * Called when the plugin has been loaded and is ready to be used. 25 * This may be called multiple times if multiple plugins are allowed. 26 * It may also be called in the future if the plugin package changes 27 * and needs to be reloaded. 28 */ onPluginConnected(T plugin, Context pluginContext)29 void onPluginConnected(T plugin, Context pluginContext); 30 31 /** 32 * Called when a plugin has been uninstalled/updated and should be removed 33 * from use. 34 */ onPluginDisconnected(T plugin)35 default void onPluginDisconnected(T plugin) { 36 // Optional. 37 } 38 } 39