1 /* 2 * Copyright (C) 2019 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 android.app; 17 18 import android.annotation.NonNull; 19 import android.content.pm.ApplicationInfo; 20 21 /** 22 * This is the interface to be implemented for the class that is specified by the 23 * {@link android.R.styleable#AndroidManifestApplication_zygotePreloadName 24 * android:zygotePreloadName} of the <application> tag. 25 * 26 * It is responsible for preloading application code and data, that will be shared by all 27 * isolated services that have the 28 * {@link android.R.styleable#AndroidManifestService_useAppZygote android:useAppZygote} attribute 29 * of the <service> tag set to <code>true</code>. 30 * 31 * Note that implementations of this class must provide a default constructor with no arguments. 32 */ 33 public interface ZygotePreload { 34 /** 35 * This method is called once every time the Application Zygote is started. It is normally 36 * started the first time an isolated service that uses it is started. The Application Zygote 37 * will be stopped when all isolated services that use it are stopped. 38 * 39 * @param appInfo The ApplicationInfo object belonging to the application 40 */ 41 void doPreload(@NonNull ApplicationInfo appInfo); 42 } 43
