19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.content; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.Configuration; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The set of callback APIs that are common to all application components 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ({@link android.app.Activity}, {@link android.app.Service}, 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link ContentProvider}, and {@link android.app.Application}). 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic interface ComponentCallbacks { 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Called by the system when the device configuration changes while your 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * component is running. Note that, unlike activities, other components 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * are never restarted when a configuration changes: they must always deal 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * with the results of the change, such as by re-retrieving resources. 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>At the time that this function has been called, your Resources 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * object will have been updated to return resource values matching the 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * new configuration. 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newConfig The new device configuration. 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onConfigurationChanged(Configuration newConfig); 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This is called when the overall system is running low on memory, and 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * would like actively running process to try to tighten their belt. While 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the exact point at which this will be called is not defined, generally 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * it will happen around the time all background process have been killed, 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that is before reaching the point of killing processes hosting 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * service and foreground UI that we would like to avoid killing. 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Applications that want to be nice can implement this method to release 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * any caches or other unnecessary resources they may be holding on to. 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The system will perform a gc for you after returning from this method. 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onLowMemory(); 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 55