| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package androidx.lifecycle; |
| |
| import androidx.annotation.NonNull; |
| |
| /** |
| * Callback interface for listening to {@link LifecycleOwner} state changes. |
| * <p> |
| * If you use Java 8 language, <b>always</b> prefer it over annotations. |
| */ |
| @SuppressWarnings("unused") |
| public interface DefaultLifecycleObserver extends FullLifecycleObserver { |
| |
| /** |
| * Notifies that {@code ON_CREATE} event occurred. |
| * <p> |
| * This method will be called after the {@link LifecycleOwner}'s {@code onCreate} |
| * method returns. |
| * |
| * @param owner the component, whose state was changed |
| */ |
| @Override |
| default void onCreate(@NonNull LifecycleOwner owner) { |
| } |
| |
| /** |
| * Notifies that {@code ON_START} event occurred. |
| * <p> |
| * This method will be called after the {@link LifecycleOwner}'s {@code onStart} method returns. |
| * |
| * @param owner the component, whose state was changed |
| */ |
| @Override |
| default void onStart(@NonNull LifecycleOwner owner) { |
| } |
| |
| /** |
| * Notifies that {@code ON_RESUME} event occurred. |
| * <p> |
| * This method will be called after the {@link LifecycleOwner}'s {@code onResume} |
| * method returns. |
| * |
| * @param owner the component, whose state was changed |
| */ |
| @Override |
| default void onResume(@NonNull LifecycleOwner owner) { |
| } |
| |
| /** |
| * Notifies that {@code ON_PAUSE} event occurred. |
| * <p> |
| * This method will be called before the {@link LifecycleOwner}'s {@code onPause} method |
| * is called. |
| * |
| * @param owner the component, whose state was changed |
| */ |
| @Override |
| default void onPause(@NonNull LifecycleOwner owner) { |
| } |
| |
| /** |
| * Notifies that {@code ON_STOP} event occurred. |
| * <p> |
| * This method will be called before the {@link LifecycleOwner}'s {@code onStop} method |
| * is called. |
| * |
| * @param owner the component, whose state was changed |
| */ |
| @Override |
| default void onStop(@NonNull LifecycleOwner owner) { |
| } |
| |
| /** |
| * Notifies that {@code ON_DESTROY} event occurred. |
| * <p> |
| * This method will be called before the {@link LifecycleOwner}'s {@code onStop} method |
| * is called. |
| * |
| * @param owner the component, whose state was changed |
| */ |
| @Override |
| default void onDestroy(@NonNull LifecycleOwner owner) { |
| } |
| } |
| |