1 /* 2 * Copyright (C) 2007 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.content.pm; 18 19 import android.os.Parcel; 20 import android.os.Parcelable; 21 import android.util.Printer; 22 23 /** 24 * Information you can retrieve about a particular application 25 * activity or receiver. This corresponds to information collected 26 * from the AndroidManifest.xml's <activity> and 27 * <receiver> tags. 28 */ 29 public class ActivityInfo extends ComponentInfo 30 implements Parcelable { 31 /** 32 * A style resource identifier (in the package's resources) of this 33 * activity's theme. From the "theme" attribute or, if not set, 0. 34 */ 35 public int theme; 36 37 /** 38 * Constant corresponding to <code>standard</code> in 39 * the {@link android.R.attr#launchMode} attribute. 40 */ 41 public static final int LAUNCH_MULTIPLE = 0; 42 /** 43 * Constant corresponding to <code>singleTop</code> in 44 * the {@link android.R.attr#launchMode} attribute. 45 */ 46 public static final int LAUNCH_SINGLE_TOP = 1; 47 /** 48 * Constant corresponding to <code>singleTask</code> in 49 * the {@link android.R.attr#launchMode} attribute. 50 */ 51 public static final int LAUNCH_SINGLE_TASK = 2; 52 /** 53 * Constant corresponding to <code>singleInstance</code> in 54 * the {@link android.R.attr#launchMode} attribute. 55 */ 56 public static final int LAUNCH_SINGLE_INSTANCE = 3; 57 /** 58 * The launch mode style requested by the activity. From the 59 * {@link android.R.attr#launchMode} attribute, one of 60 * {@link #LAUNCH_MULTIPLE}, 61 * {@link #LAUNCH_SINGLE_TOP}, {@link #LAUNCH_SINGLE_TASK}, or 62 * {@link #LAUNCH_SINGLE_INSTANCE}. 63 */ 64 public int launchMode; 65 66 /** 67 * Optional name of a permission required to be able to access this 68 * Activity. From the "permission" attribute. 69 */ 70 public String permission; 71 72 /** 73 * The affinity this activity has for another task in the system. The 74 * string here is the name of the task, often the package name of the 75 * overall package. If null, the activity has no affinity. Set from the 76 * {@link android.R.attr#taskAffinity} attribute. 77 */ 78 public String taskAffinity; 79 80 /** 81 * If this is an activity alias, this is the real activity class to run 82 * for it. Otherwise, this is null. 83 */ 84 public String targetActivity; 85 86 /** 87 * Bit in {@link #flags} indicating whether this activity is able to 88 * run in multiple processes. If 89 * true, the system may instantiate it in the some process as the 90 * process starting it in order to conserve resources. If false, the 91 * default, it always runs in {@link #processName}. Set from the 92 * {@link android.R.attr#multiprocess} attribute. 93 */ 94 public static final int FLAG_MULTIPROCESS = 0x0001; 95 /** 96 * Bit in {@link #flags} indicating that, when the activity's task is 97 * relaunched from home, this activity should be finished. 98 * Set from the 99 * {@link android.R.attr#finishOnTaskLaunch} attribute. 100 */ 101 public static final int FLAG_FINISH_ON_TASK_LAUNCH = 0x0002; 102 /** 103 * Bit in {@link #flags} indicating that, when the activity is the root 104 * of a task, that task's stack should be cleared each time the user 105 * re-launches it from home. As a result, the user will always 106 * return to the original activity at the top of the task. 107 * This flag only applies to activities that 108 * are used to start the root of a new task. Set from the 109 * {@link android.R.attr#clearTaskOnLaunch} attribute. 110 */ 111 public static final int FLAG_CLEAR_TASK_ON_LAUNCH = 0x0004; 112 /** 113 * Bit in {@link #flags} indicating that, when the activity is the root 114 * of a task, that task's stack should never be cleared when it is 115 * relaunched from home. Set from the 116 * {@link android.R.attr#alwaysRetainTaskState} attribute. 117 */ 118 public static final int FLAG_ALWAYS_RETAIN_TASK_STATE = 0x0008; 119 /** 120 * Bit in {@link #flags} indicating that the activity's state 121 * is not required to be saved, so that if there is a failure the 122 * activity will not be removed from the activity stack. Set from the 123 * {@link android.R.attr#stateNotNeeded} attribute. 124 */ 125 public static final int FLAG_STATE_NOT_NEEDED = 0x0010; 126 /** 127 * Bit in {@link #flags} that indicates that the activity should not 128 * appear in the list of recently launched activities. Set from the 129 * {@link android.R.attr#excludeFromRecents} attribute. 130 */ 131 public static final int FLAG_EXCLUDE_FROM_RECENTS = 0x0020; 132 /** 133 * Bit in {@link #flags} that indicates that the activity can be moved 134 * between tasks based on its task affinity. Set from the 135 * {@link android.R.attr#allowTaskReparenting} attribute. 136 */ 137 public static final int FLAG_ALLOW_TASK_REPARENTING = 0x0040; 138 /** 139 * Bit in {@link #flags} indicating that, when the user navigates away 140 * from an activity, it should be finished. 141 * Set from the 142 * {@link android.R.attr#noHistory} attribute. 143 */ 144 public static final int FLAG_NO_HISTORY = 0x0080; 145 /** 146 * Bit in {@link #flags} indicating that, when a request to close system 147 * windows happens, this activity is finished. 148 * Set from the 149 * {@link android.R.attr#finishOnCloseSystemDialogs} attribute. 150 */ 151 public static final int FLAG_FINISH_ON_CLOSE_SYSTEM_DIALOGS = 0x0100; 152 /** 153 * Options that have been set in the activity declaration in the 154 * manifest. 155 * These include: 156 * {@link #FLAG_MULTIPROCESS}, 157 * {@link #FLAG_FINISH_ON_TASK_LAUNCH}, {@link #FLAG_CLEAR_TASK_ON_LAUNCH}, 158 * {@link #FLAG_ALWAYS_RETAIN_TASK_STATE}, 159 * {@link #FLAG_STATE_NOT_NEEDED}, {@link #FLAG_EXCLUDE_FROM_RECENTS}, 160 * {@link #FLAG_ALLOW_TASK_REPARENTING}, {@link #FLAG_NO_HISTORY}, 161 * {@link #FLAG_FINISH_ON_CLOSE_SYSTEM_DIALOGS}, 162 */ 163 public int flags; 164 165 /** 166 * Constant corresponding to <code>unspecified</code> in 167 * the {@link android.R.attr#screenOrientation} attribute. 168 */ 169 public static final int SCREEN_ORIENTATION_UNSPECIFIED = -1; 170 /** 171 * Constant corresponding to <code>landscape</code> in 172 * the {@link android.R.attr#screenOrientation} attribute. 173 */ 174 public static final int SCREEN_ORIENTATION_LANDSCAPE = 0; 175 /** 176 * Constant corresponding to <code>portrait</code> in 177 * the {@link android.R.attr#screenOrientation} attribute. 178 */ 179 public static final int SCREEN_ORIENTATION_PORTRAIT = 1; 180 /** 181 * Constant corresponding to <code>user</code> in 182 * the {@link android.R.attr#screenOrientation} attribute. 183 */ 184 public static final int SCREEN_ORIENTATION_USER = 2; 185 /** 186 * Constant corresponding to <code>behind</code> in 187 * the {@link android.R.attr#screenOrientation} attribute. 188 */ 189 public static final int SCREEN_ORIENTATION_BEHIND = 3; 190 /** 191 * Constant corresponding to <code>sensor</code> in 192 * the {@link android.R.attr#screenOrientation} attribute. 193 */ 194 public static final int SCREEN_ORIENTATION_SENSOR = 4; 195 196 /** 197 * Constant corresponding to <code>nosensor</code> in 198 * the {@link android.R.attr#screenOrientation} attribute. 199 */ 200 public static final int SCREEN_ORIENTATION_NOSENSOR = 5; 201 202 /** 203 * Constant corresponding to <code>sensorLandscape</code> in 204 * the {@link android.R.attr#screenOrientation} attribute. 205 */ 206 public static final int SCREEN_ORIENTATION_SENSOR_LANDSCAPE = 6; 207 208 /** 209 * Constant corresponding to <code>sensorPortrait</code> in 210 * the {@link android.R.attr#screenOrientation} attribute. 211 */ 212 public static final int SCREEN_ORIENTATION_SENSOR_PORTRAIT = 7; 213 214 /** 215 * Constant corresponding to <code>reverseLandscape</code> in 216 * the {@link android.R.attr#screenOrientation} attribute. 217 */ 218 public static final int SCREEN_ORIENTATION_REVERSE_LANDSCAPE = 8; 219 220 /** 221 * Constant corresponding to <code>reversePortrait</code> in 222 * the {@link android.R.attr#screenOrientation} attribute. 223 */ 224 public static final int SCREEN_ORIENTATION_REVERSE_PORTRAIT = 9; 225 226 /** 227 * Constant corresponding to <code>fullSensor</code> in 228 * the {@link android.R.attr#screenOrientation} attribute. 229 */ 230 public static final int SCREEN_ORIENTATION_FULL_SENSOR = 10; 231 232 /** 233 * The preferred screen orientation this activity would like to run in. 234 * From the {@link android.R.attr#screenOrientation} attribute, one of 235 * {@link #SCREEN_ORIENTATION_UNSPECIFIED}, 236 * {@link #SCREEN_ORIENTATION_LANDSCAPE}, 237 * {@link #SCREEN_ORIENTATION_PORTRAIT}, 238 * {@link #SCREEN_ORIENTATION_USER}, 239 * {@link #SCREEN_ORIENTATION_BEHIND}, 240 * {@link #SCREEN_ORIENTATION_SENSOR}, 241 * {@link #SCREEN_ORIENTATION_NOSENSOR}, 242 * {@link #SCREEN_ORIENTATION_SENSOR_LANDSCAPE}, 243 * {@link #SCREEN_ORIENTATION_SENSOR_PORTRAIT}, 244 * {@link #SCREEN_ORIENTATION_REVERSE_LANDSCAPE}, 245 * {@link #SCREEN_ORIENTATION_REVERSE_PORTRAIT}, 246 * {@link #SCREEN_ORIENTATION_FULL_SENSOR}. 247 */ 248 public int screenOrientation = SCREEN_ORIENTATION_UNSPECIFIED; 249 250 /** 251 * Bit in {@link #configChanges} that indicates that the activity 252 * can itself handle changes to the IMSI MCC. Set from the 253 * {@link android.R.attr#configChanges} attribute. 254 */ 255 public static final int CONFIG_MCC = 0x0001; 256 /** 257 * Bit in {@link #configChanges} that indicates that the activity 258 * can itself handle changes to the IMSI MNC. Set from the 259 * {@link android.R.attr#configChanges} attribute. 260 */ 261 public static final int CONFIG_MNC = 0x0002; 262 /** 263 * Bit in {@link #configChanges} that indicates that the activity 264 * can itself handle changes to the locale. Set from the 265 * {@link android.R.attr#configChanges} attribute. 266 */ 267 public static final int CONFIG_LOCALE = 0x0004; 268 /** 269 * Bit in {@link #configChanges} that indicates that the activity 270 * can itself handle changes to the touchscreen type. Set from the 271 * {@link android.R.attr#configChanges} attribute. 272 */ 273 public static final int CONFIG_TOUCHSCREEN = 0x0008; 274 /** 275 * Bit in {@link #configChanges} that indicates that the activity 276 * can itself handle changes to the keyboard type. Set from the 277 * {@link android.R.attr#configChanges} attribute. 278 */ 279 public static final int CONFIG_KEYBOARD = 0x0010; 280 /** 281 * Bit in {@link #configChanges} that indicates that the activity 282 * can itself handle changes to the keyboard or navigation being hidden/exposed. 283 * Note that inspite of the name, this applies to the changes to any 284 * hidden states: keyboard or navigation. 285 * Set from the {@link android.R.attr#configChanges} attribute. 286 */ 287 public static final int CONFIG_KEYBOARD_HIDDEN = 0x0020; 288 /** 289 * Bit in {@link #configChanges} that indicates that the activity 290 * can itself handle changes to the navigation type. Set from the 291 * {@link android.R.attr#configChanges} attribute. 292 */ 293 public static final int CONFIG_NAVIGATION = 0x0040; 294 /** 295 * Bit in {@link #configChanges} that indicates that the activity 296 * can itself handle changes to the screen orientation. Set from the 297 * {@link android.R.attr#configChanges} attribute. 298 */ 299 public static final int CONFIG_ORIENTATION = 0x0080; 300 /** 301 * Bit in {@link #configChanges} that indicates that the activity 302 * can itself handle changes to the screen layout. Set from the 303 * {@link android.R.attr#configChanges} attribute. 304 */ 305 public static final int CONFIG_SCREEN_LAYOUT = 0x0100; 306 /** 307 * Bit in {@link #configChanges} that indicates that the activity 308 * can itself handle the ui mode. Set from the 309 * {@link android.R.attr#configChanges} attribute. 310 */ 311 public static final int CONFIG_UI_MODE = 0x0200; 312 /** 313 * Bit in {@link #configChanges} that indicates that the activity 314 * can itself handle changes to the font scaling factor. Set from the 315 * {@link android.R.attr#configChanges} attribute. This is 316 * not a core resource configutation, but a higher-level value, so its 317 * constant starts at the high bits. 318 */ 319 public static final int CONFIG_FONT_SCALE = 0x40000000; 320 321 /** 322 * Bit mask of kinds of configuration changes that this activity 323 * can handle itself (without being restarted by the system). 324 * Contains any combination of {@link #CONFIG_FONT_SCALE}, 325 * {@link #CONFIG_MCC}, {@link #CONFIG_MNC}, 326 * {@link #CONFIG_LOCALE}, {@link #CONFIG_TOUCHSCREEN}, 327 * {@link #CONFIG_KEYBOARD}, {@link #CONFIG_NAVIGATION}, 328 * {@link #CONFIG_ORIENTATION}, and {@link #CONFIG_SCREEN_LAYOUT}. Set from the 329 * {@link android.R.attr#configChanges} attribute. 330 */ 331 public int configChanges; 332 333 /** 334 * The desired soft input mode for this activity's main window. 335 * Set from the {@link android.R.attr#windowSoftInputMode} attribute 336 * in the activity's manifest. May be any of the same values allowed 337 * for {@link android.view.WindowManager.LayoutParams#softInputMode 338 * WindowManager.LayoutParams.softInputMode}. If 0 (unspecified), 339 * the mode from the theme will be used. 340 */ 341 public int softInputMode; 342 343 public ActivityInfo() { 344 } 345 346 public ActivityInfo(ActivityInfo orig) { 347 super(orig); 348 theme = orig.theme; 349 launchMode = orig.launchMode; 350 permission = orig.permission; 351 taskAffinity = orig.taskAffinity; 352 targetActivity = orig.targetActivity; 353 flags = orig.flags; 354 screenOrientation = orig.screenOrientation; 355 configChanges = orig.configChanges; 356 softInputMode = orig.softInputMode; 357 } 358 359 /** 360 * Return the theme resource identifier to use for this activity. If 361 * the activity defines a theme, that is used; else, the application 362 * theme is used. 363 * 364 * @return The theme associated with this activity. 365 */ 366 public final int getThemeResource() { 367 return theme != 0 ? theme : applicationInfo.theme; 368 } 369 370 public void dump(Printer pw, String prefix) { 371 super.dumpFront(pw, prefix); 372 if (permission != null) { 373 pw.println(prefix + "permission=" + permission); 374 } 375 pw.println(prefix + "taskAffinity=" + taskAffinity 376 + " targetActivity=" + targetActivity); 377 if (launchMode != 0 || flags != 0 || theme != 0) { 378 pw.println(prefix + "launchMode=" + launchMode 379 + " flags=0x" + Integer.toHexString(flags) 380 + " theme=0x" + Integer.toHexString(theme)); 381 } 382 if (screenOrientation != SCREEN_ORIENTATION_UNSPECIFIED 383 || configChanges != 0 || softInputMode != 0) { 384 pw.println(prefix + "screenOrientation=" + screenOrientation 385 + " configChanges=0x" + Integer.toHexString(configChanges) 386 + " softInputMode=0x" + Integer.toHexString(softInputMode)); 387 } 388 super.dumpBack(pw, prefix); 389 } 390 391 public String toString() { 392 return "ActivityInfo{" 393 + Integer.toHexString(System.identityHashCode(this)) 394 + " " + name + "}"; 395 } 396 397 public int describeContents() { 398 return 0; 399 } 400 401 public void writeToParcel(Parcel dest, int parcelableFlags) { 402 super.writeToParcel(dest, parcelableFlags); 403 dest.writeInt(theme); 404 dest.writeInt(launchMode); 405 dest.writeString(permission); 406 dest.writeString(taskAffinity); 407 dest.writeString(targetActivity); 408 dest.writeInt(flags); 409 dest.writeInt(screenOrientation); 410 dest.writeInt(configChanges); 411 dest.writeInt(softInputMode); 412 } 413 414 public static final Parcelable.Creator<ActivityInfo> CREATOR 415 = new Parcelable.Creator<ActivityInfo>() { 416 public ActivityInfo createFromParcel(Parcel source) { 417 return new ActivityInfo(source); 418 } 419 public ActivityInfo[] newArray(int size) { 420 return new ActivityInfo[size]; 421 } 422 }; 423 424 private ActivityInfo(Parcel source) { 425 super(source); 426 theme = source.readInt(); 427 launchMode = source.readInt(); 428 permission = source.readString(); 429 taskAffinity = source.readString(); 430 targetActivity = source.readString(); 431 flags = source.readInt(); 432 screenOrientation = source.readInt(); 433 configChanges = source.readInt(); 434 softInputMode = source.readInt(); 435 } 436 } 437
