1// Copyright 2014 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5package org.chromium.base; 6 7import android.support.annotation.IntDef; 8 9import java.lang.annotation.Retention; 10import java.lang.annotation.RetentionPolicy; 11 12/** 13 * A set of states that represent the last state change of an Activity. 14 */ 15public interface ActivityState { 16 17 @Retention(RetentionPolicy.SOURCE) 18 @IntDef({CREATED, STARTED, RESUMED, PAUSED, STOPPED, DESTROYED}) 19 public @interface ActivityStateEnum {} 20 21 /** 22 * Represents Activity#onCreate(). 23 */ 24 public final int CREATED = 1; 25 26 /** 27 * Represents Activity#onStart(). 28 */ 29 public final int STARTED = 2; 30 31 /** 32 * Represents Activity#onResume(). 33 */ 34 public final int RESUMED = 3; 35 36 /** 37 * Represents Activity#onPause(). 38 */ 39 public final int PAUSED = 4; 40 41 /** 42 * Represents Activity#onStop(). 43 */ 44 public final int STOPPED = 5; 45 46 /** 47 * Represents Activity#onDestroy(). This is also used when the state of an Activity is unknown. 48 */ 49 public final int DESTROYED = 6; 50} 51