1 /* 2 * Copyright (C) 2018 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 17 package android.app; 18 19 import android.annotation.NonNull; 20 import android.annotation.Nullable; 21 import android.annotation.UnsupportedAppUsage; 22 import android.content.ComponentName; 23 import android.content.Intent; 24 import android.content.res.Configuration; 25 import android.os.Parcel; 26 import android.os.RemoteException; 27 import android.util.Log; 28 29 /** 30 * Stores information about a particular Task. 31 */ 32 public class TaskInfo { 33 private static final String TAG = "TaskInfo"; 34 35 /** 36 * The id of the user the task was running as. 37 * @hide 38 */ 39 @UnsupportedAppUsage 40 public int userId; 41 42 /** 43 * The id of the ActivityStack that currently contains this task. 44 * @hide 45 */ 46 @UnsupportedAppUsage 47 public int stackId; 48 49 /** 50 * The identifier for this task. 51 */ 52 public int taskId; 53 54 /** 55 * Whether or not this task has any running activities. 56 */ 57 public boolean isRunning; 58 59 /** 60 * The base intent of the task (generally the intent that launched the task). This intent can 61 * be used to relaunch the task (if it is no longer running) or brought to the front if it is. 62 */ 63 @NonNull 64 public Intent baseIntent; 65 66 /** 67 * The component of the first activity in the task, can be considered the "application" of this 68 * task. 69 */ 70 @Nullable 71 public ComponentName baseActivity; 72 73 /** 74 * The component of the top activity in the task, currently showing to the user. 75 */ 76 @Nullable 77 public ComponentName topActivity; 78 79 /** 80 * The component of the target activity if this task was started from an activity alias. 81 * Otherwise, this is null. 82 */ 83 @Nullable 84 public ComponentName origActivity; 85 86 /** 87 * The component of the activity that started this task (may be the component of the activity 88 * alias). 89 * @hide 90 */ 91 @Nullable 92 public ComponentName realActivity; 93 94 /** 95 * The number of activities in this task (including running). 96 */ 97 public int numActivities; 98 99 /** 100 * The last time this task was active since boot (including time spent in sleep). 101 * @hide 102 */ 103 @UnsupportedAppUsage 104 public long lastActiveTime; 105 106 /** 107 * The id of the display this task is associated with. 108 * @hide 109 */ 110 public int displayId; 111 112 /** 113 * The recent activity values for the highest activity in the stack to have set the values. 114 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 115 */ 116 @Nullable 117 public ActivityManager.TaskDescription taskDescription; 118 119 /** 120 * True if the task can go in the split-screen primary stack. 121 * @hide 122 */ 123 @UnsupportedAppUsage 124 public boolean supportsSplitScreenMultiWindow; 125 126 /** 127 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 128 * @hide 129 */ 130 @UnsupportedAppUsage 131 public int resizeMode; 132 133 /** 134 * The current configuration of the task. 135 * @hide 136 */ 137 @NonNull 138 @UnsupportedAppUsage 139 public final Configuration configuration = new Configuration(); 140 141 TaskInfo() { 142 // Do nothing 143 } 144 145 private TaskInfo(Parcel source) { 146 readFromParcel(source); 147 } 148 149 /** 150 * @param reducedResolution 151 * @return 152 * @hide 153 */ 154 public ActivityManager.TaskSnapshot getTaskSnapshot(boolean reducedResolution) { 155 try { 156 return ActivityManager.getService().getTaskSnapshot(taskId, reducedResolution); 157 } catch (RemoteException e) { 158 Log.e(TAG, "Failed to get task snapshot, taskId=" + taskId, e); 159 return null; 160 } 161 } 162 163 /** 164 * Reads the TaskInfo from a parcel. 165 */ 166 void readFromParcel(Parcel source) { 167 userId = source.readInt(); 168 stackId = source.readInt(); 169 taskId = source.readInt(); 170 displayId = source.readInt(); 171 isRunning = source.readBoolean(); 172 baseIntent = source.readInt() != 0 173 ? Intent.CREATOR.createFromParcel(source) 174 : null; 175 baseActivity = ComponentName.readFromParcel(source); 176 topActivity = ComponentName.readFromParcel(source); 177 origActivity = ComponentName.readFromParcel(source); 178 realActivity = ComponentName.readFromParcel(source); 179 180 numActivities = source.readInt(); 181 lastActiveTime = source.readLong(); 182 183 taskDescription = source.readInt() != 0 184 ? ActivityManager.TaskDescription.CREATOR.createFromParcel(source) 185 : null; 186 supportsSplitScreenMultiWindow = source.readBoolean(); 187 resizeMode = source.readInt(); 188 configuration.readFromParcel(source); 189 } 190 191 /** 192 * Writes the TaskInfo to a parcel. 193 */ 194 void writeToParcel(Parcel dest, int flags) { 195 dest.writeInt(userId); 196 dest.writeInt(stackId); 197 dest.writeInt(taskId); 198 dest.writeInt(displayId); 199 dest.writeBoolean(isRunning); 200 201 if (baseIntent != null) { 202 dest.writeInt(1); 203 baseIntent.writeToParcel(dest, 0); 204 } else { 205 dest.writeInt(0); 206 } 207 ComponentName.writeToParcel(baseActivity, dest); 208 ComponentName.writeToParcel(topActivity, dest); 209 ComponentName.writeToParcel(origActivity, dest); 210 ComponentName.writeToParcel(realActivity, dest); 211 212 dest.writeInt(numActivities); 213 dest.writeLong(lastActiveTime); 214 215 if (taskDescription != null) { 216 dest.writeInt(1); 217 taskDescription.writeToParcel(dest, flags); 218 } else { 219 dest.writeInt(0); 220 } 221 dest.writeBoolean(supportsSplitScreenMultiWindow); 222 dest.writeInt(resizeMode); 223 configuration.writeToParcel(dest, flags); 224 } 225 226 @Override 227 public String toString() { 228 return "TaskInfo{userId=" + userId + " stackId=" + stackId + " taskId=" + taskId 229 + " displayId=" + displayId 230 + " isRunning=" + isRunning 231 + " baseIntent=" + baseIntent + " baseActivity=" + baseActivity 232 + " topActivity=" + topActivity + " origActivity=" + origActivity 233 + " realActivity=" + realActivity 234 + " numActivities=" + numActivities 235 + " lastActiveTime=" + lastActiveTime 236 + " supportsSplitScreenMultiWindow=" + supportsSplitScreenMultiWindow 237 + " resizeMode=" + resizeMode; 238 } 239 } 240
