1/** 2 * Copyright (C) 2007 Google Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not 5 * use this file except in compliance with the License. You may obtain a copy 6 * 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, WITHOUT 12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 13 * License for the specific language governing permissions and limitations 14 * under the License. 15 */ 16 17package com.android.settings; 18 19import static android.content.Intent.EXTRA_USER; 20 21import android.annotation.Nullable; 22import android.app.ActivityManager; 23import android.app.ActivityManagerNative; 24import android.app.AlertDialog; 25import android.app.Dialog; 26import android.app.Fragment; 27import android.app.IActivityManager; 28import android.content.ContentResolver; 29import android.content.Context; 30import android.content.DialogInterface; 31import android.content.Intent; 32import android.content.pm.ApplicationInfo; 33import android.content.pm.PackageInfo; 34import android.content.pm.PackageManager; 35import android.content.pm.PackageManager.NameNotFoundException; 36import android.content.pm.ResolveInfo; 37import android.content.pm.Signature; 38import android.content.pm.UserInfo; 39import android.content.res.Resources; 40import android.content.res.Resources.NotFoundException; 41import android.database.Cursor; 42import android.graphics.Bitmap; 43import android.graphics.BitmapFactory; 44import android.graphics.drawable.Drawable; 45import android.net.ConnectivityManager; 46import android.net.LinkProperties; 47import android.net.Uri; 48import android.os.BatteryManager; 49import android.os.Bundle; 50import android.os.IBinder; 51import android.os.RemoteException; 52import android.os.UserHandle; 53import android.os.UserManager; 54import android.preference.Preference; 55import android.preference.PreferenceFrameLayout; 56import android.preference.PreferenceGroup; 57import android.provider.ContactsContract.CommonDataKinds; 58import android.provider.ContactsContract.Contacts; 59import android.provider.ContactsContract.Data; 60import android.provider.ContactsContract.Profile; 61import android.provider.ContactsContract.RawContacts; 62import android.service.persistentdata.PersistentDataBlockManager; 63import android.telephony.TelephonyManager; 64import android.text.BidiFormatter; 65import android.text.TextDirectionHeuristics; 66import android.text.TextUtils; 67import android.util.Log; 68import android.view.View; 69import android.view.ViewGroup; 70import android.widget.ListView; 71import android.widget.TabWidget; 72 73import com.android.internal.util.ImageUtils; 74import com.android.internal.util.UserIcons; 75import com.android.settings.UserSpinnerAdapter.UserDetails; 76import com.android.settings.dashboard.DashboardCategory; 77import com.android.settings.dashboard.DashboardTile; 78import com.android.settings.drawable.CircleFramedDrawable; 79 80import java.io.IOException; 81import java.io.InputStream; 82import java.net.InetAddress; 83import java.text.NumberFormat; 84import java.util.ArrayList; 85import java.util.Iterator; 86import java.util.List; 87import java.util.Locale; 88 89public final class Utils { 90 private static final String TAG = "Settings"; 91 92 /** 93 * Set the preference's title to the matching activity's label. 94 */ 95 public static final int UPDATE_PREFERENCE_FLAG_SET_TITLE_TO_MATCHING_ACTIVITY = 1; 96 97 /** 98 * The opacity level of a disabled icon. 99 */ 100 public static final float DISABLED_ALPHA = 0.4f; 101 102 /** 103 * Color spectrum to use to indicate badness. 0 is completely transparent (no data), 104 * 1 is most bad (red), the last value is least bad (green). 105 */ 106 public static final int[] BADNESS_COLORS = new int[] { 107 0x00000000, 0xffc43828, 0xffe54918, 0xfff47b00, 108 0xfffabf2c, 0xff679e37, 0xff0a7f42 109 }; 110 111 /** 112 * Name of the meta-data item that should be set in the AndroidManifest.xml 113 * to specify the icon that should be displayed for the preference. 114 */ 115 private static final String META_DATA_PREFERENCE_ICON = "com.android.settings.icon"; 116 117 /** 118 * Name of the meta-data item that should be set in the AndroidManifest.xml 119 * to specify the title that should be displayed for the preference. 120 */ 121 private static final String META_DATA_PREFERENCE_TITLE = "com.android.settings.title"; 122 123 /** 124 * Name of the meta-data item that should be set in the AndroidManifest.xml 125 * to specify the summary text that should be displayed for the preference. 126 */ 127 private static final String META_DATA_PREFERENCE_SUMMARY = "com.android.settings.summary"; 128 129 private static final String SETTINGS_PACKAGE_NAME = "com.android.settings"; 130 131 private static final int SECONDS_PER_MINUTE = 60; 132 private static final int SECONDS_PER_HOUR = 60 * 60; 133 private static final int SECONDS_PER_DAY = 24 * 60 * 60; 134 135 /** 136 * Finds a matching activity for a preference's intent. If a matching 137 * activity is not found, it will remove the preference. 138 * 139 * @param context The context. 140 * @param parentPreferenceGroup The preference group that contains the 141 * preference whose intent is being resolved. 142 * @param preferenceKey The key of the preference whose intent is being 143 * resolved. 144 * @param flags 0 or one or more of 145 * {@link #UPDATE_PREFERENCE_FLAG_SET_TITLE_TO_MATCHING_ACTIVITY} 146 * . 147 * @return Whether an activity was found. If false, the preference was 148 * removed. 149 */ 150 public static boolean updatePreferenceToSpecificActivityOrRemove(Context context, 151 PreferenceGroup parentPreferenceGroup, String preferenceKey, int flags) { 152 153 Preference preference = parentPreferenceGroup.findPreference(preferenceKey); 154 if (preference == null) { 155 return false; 156 } 157 158 Intent intent = preference.getIntent(); 159 if (intent != null) { 160 // Find the activity that is in the system image 161 PackageManager pm = context.getPackageManager(); 162 List<ResolveInfo> list = pm.queryIntentActivities(intent, 0); 163 int listSize = list.size(); 164 for (int i = 0; i < listSize; i++) { 165 ResolveInfo resolveInfo = list.get(i); 166 if ((resolveInfo.activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) 167 != 0) { 168 169 // Replace the intent with this specific activity 170 preference.setIntent(new Intent().setClassName( 171 resolveInfo.activityInfo.packageName, 172 resolveInfo.activityInfo.name)); 173 174 if ((flags & UPDATE_PREFERENCE_FLAG_SET_TITLE_TO_MATCHING_ACTIVITY) != 0) { 175 // Set the preference title to the activity's label 176 preference.setTitle(resolveInfo.loadLabel(pm)); 177 } 178 179 return true; 180 } 181 } 182 } 183 184 // Did not find a matching activity, so remove the preference 185 parentPreferenceGroup.removePreference(preference); 186 187 return false; 188 } 189 190 public static boolean updateTileToSpecificActivityFromMetaDataOrRemove(Context context, 191 DashboardTile tile) { 192 193 Intent intent = tile.intent; 194 if (intent != null) { 195 // Find the activity that is in the system image 196 PackageManager pm = context.getPackageManager(); 197 List<ResolveInfo> list = pm.queryIntentActivities(intent, PackageManager.GET_META_DATA); 198 int listSize = list.size(); 199 for (int i = 0; i < listSize; i++) { 200 ResolveInfo resolveInfo = list.get(i); 201 if ((resolveInfo.activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) 202 != 0) { 203 Drawable icon = null; 204 String title = null; 205 String summary = null; 206 207 // Get the activity's meta-data 208 try { 209 Resources res = pm.getResourcesForApplication( 210 resolveInfo.activityInfo.packageName); 211 Bundle metaData = resolveInfo.activityInfo.metaData; 212 213 if (res != null && metaData != null) { 214 icon = res.getDrawable(metaData.getInt(META_DATA_PREFERENCE_ICON)); 215 title = res.getString(metaData.getInt(META_DATA_PREFERENCE_TITLE)); 216 summary = res.getString(metaData.getInt(META_DATA_PREFERENCE_SUMMARY)); 217 } 218 } catch (NameNotFoundException e) { 219 // Ignore 220 } catch (NotFoundException e) { 221 // Ignore 222 } 223 224 // Set the preference title to the activity's label if no 225 // meta-data is found 226 if (TextUtils.isEmpty(title)) { 227 title = resolveInfo.loadLabel(pm).toString(); 228 } 229 230 // Set icon, title and summary for the preference 231 // TODO: 232 //tile.icon = icon; 233 tile.title = title; 234 tile.summary = summary; 235 // Replace the intent with this specific activity 236 tile.intent = new Intent().setClassName(resolveInfo.activityInfo.packageName, 237 resolveInfo.activityInfo.name); 238 239 return true; 240 } 241 } 242 } 243 244 return false; 245 } 246 247 /** 248 * Returns true if Monkey is running. 249 */ 250 public static boolean isMonkeyRunning() { 251 return ActivityManager.isUserAMonkey(); 252 } 253 254 /** 255 * Returns whether the device is voice-capable (meaning, it is also a phone). 256 */ 257 public static boolean isVoiceCapable(Context context) { 258 TelephonyManager telephony = 259 (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); 260 return telephony != null && telephony.isVoiceCapable(); 261 } 262 263 public static boolean isWifiOnly(Context context) { 264 ConnectivityManager cm = (ConnectivityManager)context.getSystemService( 265 Context.CONNECTIVITY_SERVICE); 266 return (cm.isNetworkSupported(ConnectivityManager.TYPE_MOBILE) == false); 267 } 268 269 /** 270 * Returns the WIFI IP Addresses, if any, taking into account IPv4 and IPv6 style addresses. 271 * @param context the application context 272 * @return the formatted and newline-separated IP addresses, or null if none. 273 */ 274 public static String getWifiIpAddresses(Context context) { 275 ConnectivityManager cm = (ConnectivityManager) 276 context.getSystemService(Context.CONNECTIVITY_SERVICE); 277 LinkProperties prop = cm.getLinkProperties(ConnectivityManager.TYPE_WIFI); 278 return formatIpAddresses(prop); 279 } 280 281 /** 282 * Returns the default link's IP addresses, if any, taking into account IPv4 and IPv6 style 283 * addresses. 284 * @param context the application context 285 * @return the formatted and newline-separated IP addresses, or null if none. 286 */ 287 public static String getDefaultIpAddresses(ConnectivityManager cm) { 288 LinkProperties prop = cm.getActiveLinkProperties(); 289 return formatIpAddresses(prop); 290 } 291 292 private static String formatIpAddresses(LinkProperties prop) { 293 if (prop == null) return null; 294 Iterator<InetAddress> iter = prop.getAllAddresses().iterator(); 295 // If there are no entries, return null 296 if (!iter.hasNext()) return null; 297 // Concatenate all available addresses, comma separated 298 String addresses = ""; 299 while (iter.hasNext()) { 300 addresses += iter.next().getHostAddress(); 301 if (iter.hasNext()) addresses += "\n"; 302 } 303 return addresses; 304 } 305 306 public static Locale createLocaleFromString(String localeStr) { 307 // TODO: is there a better way to actually construct a locale that will match? 308 // The main problem is, on top of Java specs, locale.toString() and 309 // new Locale(locale.toString()).toString() do not return equal() strings in 310 // many cases, because the constructor takes the only string as the language 311 // code. So : new Locale("en", "US").toString() => "en_US" 312 // And : new Locale("en_US").toString() => "en_us" 313 if (null == localeStr) 314 return Locale.getDefault(); 315 String[] brokenDownLocale = localeStr.split("_", 3); 316 // split may not return a 0-length array. 317 if (1 == brokenDownLocale.length) { 318 return new Locale(brokenDownLocale[0]); 319 } else if (2 == brokenDownLocale.length) { 320 return new Locale(brokenDownLocale[0], brokenDownLocale[1]); 321 } else { 322 return new Locale(brokenDownLocale[0], brokenDownLocale[1], brokenDownLocale[2]); 323 } 324 } 325 326 /** Formats the ratio of amount/total as a percentage. */ 327 public static String formatPercentage(long amount, long total) { 328 return formatPercentage(((double) amount) / total); 329 } 330 331 /** Formats an integer from 0..100 as a percentage. */ 332 public static String formatPercentage(int percentage) { 333 return formatPercentage(((double) percentage) / 100.0); 334 } 335 336 /** Formats a double from 0.0..1.0 as a percentage. */ 337 private static String formatPercentage(double percentage) { 338 BidiFormatter bf = BidiFormatter.getInstance(); 339 return bf.unicodeWrap(NumberFormat.getPercentInstance().format(percentage)); 340 } 341 342 public static boolean isBatteryPresent(Intent batteryChangedIntent) { 343 return batteryChangedIntent.getBooleanExtra(BatteryManager.EXTRA_PRESENT, true); 344 } 345 346 public static String getBatteryPercentage(Intent batteryChangedIntent) { 347 return formatPercentage(getBatteryLevel(batteryChangedIntent)); 348 } 349 350 public static int getBatteryLevel(Intent batteryChangedIntent) { 351 int level = batteryChangedIntent.getIntExtra(BatteryManager.EXTRA_LEVEL, 0); 352 int scale = batteryChangedIntent.getIntExtra(BatteryManager.EXTRA_SCALE, 100); 353 return (level * 100) / scale; 354 } 355 356 public static String getBatteryStatus(Resources res, Intent batteryChangedIntent) { 357 final Intent intent = batteryChangedIntent; 358 359 int plugType = intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, 0); 360 int status = intent.getIntExtra(BatteryManager.EXTRA_STATUS, 361 BatteryManager.BATTERY_STATUS_UNKNOWN); 362 String statusString; 363 if (status == BatteryManager.BATTERY_STATUS_CHARGING) { 364 int resId; 365 if (plugType == BatteryManager.BATTERY_PLUGGED_AC) { 366 resId = R.string.battery_info_status_charging_ac; 367 } else if (plugType == BatteryManager.BATTERY_PLUGGED_USB) { 368 resId = R.string.battery_info_status_charging_usb; 369 } else if (plugType == BatteryManager.BATTERY_PLUGGED_WIRELESS) { 370 resId = R.string.battery_info_status_charging_wireless; 371 } else { 372 resId = R.string.battery_info_status_charging; 373 } 374 statusString = res.getString(resId); 375 } else if (status == BatteryManager.BATTERY_STATUS_DISCHARGING) { 376 statusString = res.getString(R.string.battery_info_status_discharging); 377 } else if (status == BatteryManager.BATTERY_STATUS_NOT_CHARGING) { 378 statusString = res.getString(R.string.battery_info_status_not_charging); 379 } else if (status == BatteryManager.BATTERY_STATUS_FULL) { 380 statusString = res.getString(R.string.battery_info_status_full); 381 } else { 382 statusString = res.getString(R.string.battery_info_status_unknown); 383 } 384 385 return statusString; 386 } 387 388 public static void forcePrepareCustomPreferencesList( 389 ViewGroup parent, View child, ListView list, boolean ignoreSidePadding) { 390 list.setScrollBarStyle(View.SCROLLBARS_OUTSIDE_OVERLAY); 391 list.setClipToPadding(false); 392 prepareCustomPreferencesList(parent, child, list, ignoreSidePadding); 393 } 394 395 /** 396 * Prepare a custom preferences layout, moving padding to {@link ListView} 397 * when outside scrollbars are requested. Usually used to display 398 * {@link ListView} and {@link TabWidget} with correct padding. 399 */ 400 public static void prepareCustomPreferencesList( 401 ViewGroup parent, View child, View list, boolean ignoreSidePadding) { 402 final boolean movePadding = list.getScrollBarStyle() == View.SCROLLBARS_OUTSIDE_OVERLAY; 403 if (movePadding) { 404 final Resources res = list.getResources(); 405 final int paddingSide = res.getDimensionPixelSize(R.dimen.settings_side_margin); 406 final int paddingBottom = res.getDimensionPixelSize( 407 com.android.internal.R.dimen.preference_fragment_padding_bottom); 408 409 if (parent instanceof PreferenceFrameLayout) { 410 ((PreferenceFrameLayout.LayoutParams) child.getLayoutParams()).removeBorders = true; 411 412 final int effectivePaddingSide = ignoreSidePadding ? 0 : paddingSide; 413 list.setPaddingRelative(effectivePaddingSide, 0, effectivePaddingSide, paddingBottom); 414 } else { 415 list.setPaddingRelative(paddingSide, 0, paddingSide, paddingBottom); 416 } 417 } 418 } 419 420 public static void forceCustomPadding(View view, boolean additive) { 421 final Resources res = view.getResources(); 422 final int paddingSide = res.getDimensionPixelSize(R.dimen.settings_side_margin); 423 424 final int paddingStart = paddingSide + (additive ? view.getPaddingStart() : 0); 425 final int paddingEnd = paddingSide + (additive ? view.getPaddingEnd() : 0); 426 final int paddingBottom = res.getDimensionPixelSize( 427 com.android.internal.R.dimen.preference_fragment_padding_bottom); 428 429 view.setPaddingRelative(paddingStart, 0, paddingEnd, paddingBottom); 430 } 431 432 /** 433 * Return string resource that best describes combination of tethering 434 * options available on this device. 435 */ 436 public static int getTetheringLabel(ConnectivityManager cm) { 437 String[] usbRegexs = cm.getTetherableUsbRegexs(); 438 String[] wifiRegexs = cm.getTetherableWifiRegexs(); 439 String[] bluetoothRegexs = cm.getTetherableBluetoothRegexs(); 440 441 boolean usbAvailable = usbRegexs.length != 0; 442 boolean wifiAvailable = wifiRegexs.length != 0; 443 boolean bluetoothAvailable = bluetoothRegexs.length != 0; 444 445 if (wifiAvailable && usbAvailable && bluetoothAvailable) { 446 return R.string.tether_settings_title_all; 447 } else if (wifiAvailable && usbAvailable) { 448 return R.string.tether_settings_title_all; 449 } else if (wifiAvailable && bluetoothAvailable) { 450 return R.string.tether_settings_title_all; 451 } else if (wifiAvailable) { 452 return R.string.tether_settings_title_wifi; 453 } else if (usbAvailable && bluetoothAvailable) { 454 return R.string.tether_settings_title_usb_bluetooth; 455 } else if (usbAvailable) { 456 return R.string.tether_settings_title_usb; 457 } else { 458 return R.string.tether_settings_title_bluetooth; 459 } 460 } 461 462 /* Used by UserSettings as well. Call this on a non-ui thread. */ 463 public static boolean copyMeProfilePhoto(Context context, UserInfo user) { 464 Uri contactUri = Profile.CONTENT_URI; 465 466 InputStream avatarDataStream = Contacts.openContactPhotoInputStream( 467 context.getContentResolver(), 468 contactUri, true); 469 // If there's no profile photo, assign a default avatar 470 if (avatarDataStream == null) { 471 return false; 472 } 473 int userId = user != null ? user.id : UserHandle.myUserId(); 474 UserManager um = (UserManager) context.getSystemService(Context.USER_SERVICE); 475 Bitmap icon = BitmapFactory.decodeStream(avatarDataStream); 476 um.setUserIcon(userId, icon); 477 try { 478 avatarDataStream.close(); 479 } catch (IOException ioe) { } 480 return true; 481 } 482 483 public static String getMeProfileName(Context context, boolean full) { 484 if (full) { 485 return getProfileDisplayName(context); 486 } else { 487 return getShorterNameIfPossible(context); 488 } 489 } 490 491 private static String getShorterNameIfPossible(Context context) { 492 final String given = getLocalProfileGivenName(context); 493 return !TextUtils.isEmpty(given) ? given : getProfileDisplayName(context); 494 } 495 496 private static String getLocalProfileGivenName(Context context) { 497 final ContentResolver cr = context.getContentResolver(); 498 499 // Find the raw contact ID for the local ME profile raw contact. 500 final long localRowProfileId; 501 final Cursor localRawProfile = cr.query( 502 Profile.CONTENT_RAW_CONTACTS_URI, 503 new String[] {RawContacts._ID}, 504 RawContacts.ACCOUNT_TYPE + " IS NULL AND " + 505 RawContacts.ACCOUNT_NAME + " IS NULL", 506 null, null); 507 if (localRawProfile == null) return null; 508 509 try { 510 if (!localRawProfile.moveToFirst()) { 511 return null; 512 } 513 localRowProfileId = localRawProfile.getLong(0); 514 } finally { 515 localRawProfile.close(); 516 } 517 518 // Find the structured name for the raw contact. 519 final Cursor structuredName = cr.query( 520 Profile.CONTENT_URI.buildUpon().appendPath(Contacts.Data.CONTENT_DIRECTORY).build(), 521 new String[] {CommonDataKinds.StructuredName.GIVEN_NAME, 522 CommonDataKinds.StructuredName.FAMILY_NAME}, 523 Data.RAW_CONTACT_ID + "=" + localRowProfileId, 524 null, null); 525 if (structuredName == null) return null; 526 527 try { 528 if (!structuredName.moveToFirst()) { 529 return null; 530 } 531 String partialName = structuredName.getString(0); 532 if (TextUtils.isEmpty(partialName)) { 533 partialName = structuredName.getString(1); 534 } 535 return partialName; 536 } finally { 537 structuredName.close(); 538 } 539 } 540 541 private static final String getProfileDisplayName(Context context) { 542 final ContentResolver cr = context.getContentResolver(); 543 final Cursor profile = cr.query(Profile.CONTENT_URI, 544 new String[] {Profile.DISPLAY_NAME}, null, null, null); 545 if (profile == null) return null; 546 547 try { 548 if (!profile.moveToFirst()) { 549 return null; 550 } 551 return profile.getString(0); 552 } finally { 553 profile.close(); 554 } 555 } 556 557 /** Not global warming, it's global change warning. */ 558 public static Dialog buildGlobalChangeWarningDialog(final Context context, int titleResId, 559 final Runnable positiveAction) { 560 final AlertDialog.Builder builder = new AlertDialog.Builder(context); 561 builder.setTitle(titleResId); 562 builder.setMessage(R.string.global_change_warning); 563 builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { 564 @Override 565 public void onClick(DialogInterface dialog, int which) { 566 positiveAction.run(); 567 } 568 }); 569 builder.setNegativeButton(android.R.string.cancel, null); 570 571 return builder.create(); 572 } 573 574 public static boolean hasMultipleUsers(Context context) { 575 return ((UserManager) context.getSystemService(Context.USER_SERVICE)) 576 .getUsers().size() > 1; 577 } 578 579 /** 580 * Start a new instance of the activity, showing only the given fragment. 581 * When launched in this mode, the given preference fragment will be instantiated and fill the 582 * entire activity. 583 * 584 * @param context The context. 585 * @param fragmentName The name of the fragment to display. 586 * @param args Optional arguments to supply to the fragment. 587 * @param resultTo Option fragment that should receive the result of the activity launch. 588 * @param resultRequestCode If resultTo is non-null, this is the request code in which 589 * to report the result. 590 * @param titleResId resource id for the String to display for the title of this set 591 * of preferences. 592 * @param title String to display for the title of this set of preferences. 593 */ 594 public static void startWithFragment(Context context, String fragmentName, Bundle args, 595 Fragment resultTo, int resultRequestCode, int titleResId, CharSequence title) { 596 startWithFragment(context, fragmentName, args, resultTo, resultRequestCode, 597 titleResId, title, false /* not a shortcut */); 598 } 599 600 public static void startWithFragment(Context context, String fragmentName, Bundle args, 601 Fragment resultTo, int resultRequestCode, int titleResId, CharSequence title, 602 boolean isShortcut) { 603 Intent intent = onBuildStartFragmentIntent(context, fragmentName, args, titleResId, 604 title, isShortcut); 605 if (resultTo == null) { 606 context.startActivity(intent); 607 } else { 608 resultTo.startActivityForResult(intent, resultRequestCode); 609 } 610 } 611 612 public static void startWithFragmentAsUser(Context context, String fragmentName, Bundle args, 613 int titleResId, CharSequence title, boolean isShortcut, UserHandle userHandle) { 614 Intent intent = onBuildStartFragmentIntent(context, fragmentName, args, titleResId, 615 title, isShortcut); 616 intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 617 intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK); 618 context.startActivityAsUser(intent, userHandle); 619 } 620 621 /** 622 * Build an Intent to launch a new activity showing the selected fragment. 623 * The implementation constructs an Intent that re-launches the current activity with the 624 * appropriate arguments to display the fragment. 625 * 626 * 627 * @param context The Context. 628 * @param fragmentName The name of the fragment to display. 629 * @param args Optional arguments to supply to the fragment. 630 * @param titleResId Optional title resource id to show for this item. 631 * @param title Optional title to show for this item. 632 * @param isShortcut tell if this is a Launcher Shortcut or not 633 * @return Returns an Intent that can be launched to display the given 634 * fragment. 635 */ 636 public static Intent onBuildStartFragmentIntent(Context context, String fragmentName, 637 Bundle args, int titleResId, CharSequence title, boolean isShortcut) { 638 Intent intent = new Intent(Intent.ACTION_MAIN); 639 intent.setClass(context, SubSettings.class); 640 intent.putExtra(SettingsActivity.EXTRA_SHOW_FRAGMENT, fragmentName); 641 intent.putExtra(SettingsActivity.EXTRA_SHOW_FRAGMENT_ARGUMENTS, args); 642 intent.putExtra(SettingsActivity.EXTRA_SHOW_FRAGMENT_TITLE_RESID, titleResId); 643 intent.putExtra(SettingsActivity.EXTRA_SHOW_FRAGMENT_TITLE, title); 644 intent.putExtra(SettingsActivity.EXTRA_SHOW_FRAGMENT_AS_SHORTCUT, isShortcut); 645 return intent; 646 } 647 648 /** 649 * Returns the managed profile of the current user or null if none found. 650 */ 651 public static UserHandle getManagedProfile(UserManager userManager) { 652 List<UserHandle> userProfiles = userManager.getUserProfiles(); 653 final int count = userProfiles.size(); 654 for (int i = 0; i < count; i++) { 655 final UserHandle profile = userProfiles.get(i); 656 if (profile.getIdentifier() == userManager.getUserHandle()) { 657 continue; 658 } 659 final UserInfo userInfo = userManager.getUserInfo(profile.getIdentifier()); 660 if (userInfo.isManagedProfile()) { 661 return profile; 662 } 663 } 664 return null; 665 } 666 667 /** 668 * Returns true if the current profile is a managed one. 669 */ 670 public static boolean isManagedProfile(UserManager userManager) { 671 UserInfo currentUser = userManager.getUserInfo(userManager.getUserHandle()); 672 return currentUser.isManagedProfile(); 673 } 674 675 /** 676 * Creates a {@link UserSpinnerAdapter} if there is more than one profile on the device. 677 * 678 * <p> The adapter can be used to populate a spinner that switches between the Settings 679 * app on the different profiles. 680 * 681 * @return a {@link UserSpinnerAdapter} or null if there is only one profile. 682 */ 683 public static UserSpinnerAdapter createUserSpinnerAdapter(UserManager userManager, 684 Context context) { 685 List<UserHandle> userProfiles = userManager.getUserProfiles(); 686 if (userProfiles.size() < 2) { 687 return null; 688 } 689 690 UserHandle myUserHandle = new UserHandle(UserHandle.myUserId()); 691 // The first option should be the current profile 692 userProfiles.remove(myUserHandle); 693 userProfiles.add(0, myUserHandle); 694 695 ArrayList<UserDetails> userDetails = new ArrayList<UserDetails>(userProfiles.size()); 696 final int count = userProfiles.size(); 697 for (int i = 0; i < count; i++) { 698 userDetails.add(new UserDetails(userProfiles.get(i), userManager, context)); 699 } 700 return new UserSpinnerAdapter(context, userDetails); 701 } 702 703 /** 704 * Returns the target user for a Settings activity. 705 * 706 * The target user can be either the current user, the user that launched this activity or 707 * the user contained as an extra in the arguments or intent extras. 708 * 709 * Note: This is secure in the sense that it only returns a target user different to the current 710 * one if the app launching this activity is the Settings app itself, running in the same user 711 * or in one that is in the same profile group, or if the user id is provided by the system. 712 */ 713 public static UserHandle getSecureTargetUser(IBinder activityToken, 714 UserManager um, @Nullable Bundle arguments, @Nullable Bundle intentExtras) { 715 UserHandle currentUser = new UserHandle(UserHandle.myUserId()); 716 IActivityManager am = ActivityManagerNative.getDefault(); 717 try { 718 String launchedFromPackage = am.getLaunchedFromPackage(activityToken); 719 boolean launchedFromSettingsApp = SETTINGS_PACKAGE_NAME.equals(launchedFromPackage); 720 721 UserHandle launchedFromUser = new UserHandle(UserHandle.getUserId( 722 am.getLaunchedFromUid(activityToken))); 723 if (launchedFromUser != null && !launchedFromUser.equals(currentUser)) { 724 // Check it's secure 725 if (isProfileOf(um, launchedFromUser)) { 726 return launchedFromUser; 727 } 728 } 729 UserHandle extrasUser = intentExtras != null 730 ? (UserHandle) intentExtras.getParcelable(EXTRA_USER) : null; 731 if (extrasUser != null && !extrasUser.equals(currentUser)) { 732 // Check it's secure 733 if (launchedFromSettingsApp && isProfileOf(um, extrasUser)) { 734 return extrasUser; 735 } 736 } 737 UserHandle argumentsUser = arguments != null 738 ? (UserHandle) arguments.getParcelable(EXTRA_USER) : null; 739 if (argumentsUser != null && !argumentsUser.equals(currentUser)) { 740 // Check it's secure 741 if (launchedFromSettingsApp && isProfileOf(um, argumentsUser)) { 742 return argumentsUser; 743 } 744 } 745 } catch (RemoteException e) { 746 // Should not happen 747 Log.v(TAG, "Could not talk to activity manager.", e); 748 } 749 return currentUser; 750 } 751 752 /** 753 * Returns the target user for a Settings activity. 754 * 755 * The target user can be either the current user, the user that launched this activity or 756 * the user contained as an extra in the arguments or intent extras. 757 * 758 * You should use {@link #getSecureTargetUser(IBinder, UserManager, Bundle, Bundle)} if 759 * possible. 760 * 761 * @see #getInsecureTargetUser(IBinder, Bundle, Bundle) 762 */ 763 public static UserHandle getInsecureTargetUser(IBinder activityToken, @Nullable Bundle arguments, 764 @Nullable Bundle intentExtras) { 765 UserHandle currentUser = new UserHandle(UserHandle.myUserId()); 766 IActivityManager am = ActivityManagerNative.getDefault(); 767 try { 768 UserHandle launchedFromUser = new UserHandle(UserHandle.getUserId( 769 am.getLaunchedFromUid(activityToken))); 770 if (launchedFromUser != null && !launchedFromUser.equals(currentUser)) { 771 return launchedFromUser; 772 } 773 UserHandle extrasUser = intentExtras != null 774 ? (UserHandle) intentExtras.getParcelable(EXTRA_USER) : null; 775 if (extrasUser != null && !extrasUser.equals(currentUser)) { 776 return extrasUser; 777 } 778 UserHandle argumentsUser = arguments != null 779 ? (UserHandle) arguments.getParcelable(EXTRA_USER) : null; 780 if (argumentsUser != null && !argumentsUser.equals(currentUser)) { 781 return argumentsUser; 782 } 783 } catch (RemoteException e) { 784 // Should not happen 785 Log.v(TAG, "Could not talk to activity manager.", e); 786 return null; 787 } 788 return currentUser; 789 } 790 791 /** 792 * Returns true if the user provided is in the same profiles group as the current user. 793 */ 794 private static boolean isProfileOf(UserManager um, UserHandle otherUser) { 795 if (um == null || otherUser == null) return false; 796 return (UserHandle.myUserId() == otherUser.getIdentifier()) 797 || um.getUserProfiles().contains(otherUser); 798 } 799 800 /** 801 * Creates a dialog to confirm with the user if it's ok to remove the user 802 * and delete all the data. 803 * 804 * @param context a Context object 805 * @param removingUserId The userId of the user to remove 806 * @param onConfirmListener Callback object for positive action 807 * @return the created Dialog 808 */ 809 public static Dialog createRemoveConfirmationDialog(Context context, int removingUserId, 810 DialogInterface.OnClickListener onConfirmListener) { 811 UserManager um = (UserManager) context.getSystemService(Context.USER_SERVICE); 812 UserInfo userInfo = um.getUserInfo(removingUserId); 813 int titleResId; 814 int messageResId; 815 if (UserHandle.myUserId() == removingUserId) { 816 titleResId = R.string.user_confirm_remove_self_title; 817 messageResId = R.string.user_confirm_remove_self_message; 818 } else if (userInfo.isRestricted()) { 819 titleResId = R.string.user_profile_confirm_remove_title; 820 messageResId = R.string.user_profile_confirm_remove_message; 821 } else if (userInfo.isManagedProfile()) { 822 titleResId = R.string.work_profile_confirm_remove_title; 823 messageResId = R.string.work_profile_confirm_remove_message; 824 } else { 825 titleResId = R.string.user_confirm_remove_title; 826 messageResId = R.string.user_confirm_remove_message; 827 } 828 Dialog dlg = new AlertDialog.Builder(context) 829 .setTitle(titleResId) 830 .setMessage(messageResId) 831 .setPositiveButton(R.string.user_delete_button, 832 onConfirmListener) 833 .setNegativeButton(android.R.string.cancel, null) 834 .create(); 835 return dlg; 836 } 837 838 /** 839 * Returns whether or not this device is able to be OEM unlocked. 840 */ 841 static boolean isOemUnlockEnabled(Context context) { 842 PersistentDataBlockManager manager =(PersistentDataBlockManager) 843 context.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 844 return manager.getOemUnlockEnabled(); 845 } 846 847 /** 848 * Allows enabling or disabling OEM unlock on this device. OEM unlocked 849 * devices allow users to flash other OSes to them. 850 */ 851 static void setOemUnlockEnabled(Context context, boolean enabled) { 852 PersistentDataBlockManager manager =(PersistentDataBlockManager) 853 context.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 854 manager.setOemUnlockEnabled(enabled); 855 } 856 857 /** 858 * Returns a circular icon for a user. 859 */ 860 public static Drawable getUserIcon(Context context, UserManager um, UserInfo user) { 861 if (user.iconPath != null) { 862 Bitmap icon = um.getUserIcon(user.id); 863 if (icon != null) { 864 return CircleFramedDrawable.getInstance(context, icon); 865 } 866 } 867 return UserIcons.getDefaultUserIcon(user.id, /* light= */ false); 868 } 869 870 /** 871 * Return whether or not the user should have a SIM Cards option in Settings. 872 * TODO: Change back to returning true if count is greater than one after testing. 873 * TODO: See bug 16533525. 874 */ 875 public static boolean showSimCardTile(Context context) { 876 final TelephonyManager tm = 877 (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); 878 879 // TODO: Uncomment to re-enable SimSettings. 880 // return tm.getSimCount() > 0; 881 return false; 882 } 883 884 /** 885 * Determine whether a package is a "system package", in which case certain things (like 886 * disabling notifications or disabling the package altogether) should be disallowed. 887 */ 888 public static boolean isSystemPackage(PackageManager pm, PackageInfo pkg) { 889 if (sSystemSignature == null) { 890 sSystemSignature = new Signature[]{ getSystemSignature(pm) }; 891 } 892 return sSystemSignature[0] != null && sSystemSignature[0].equals(getFirstSignature(pkg)); 893 } 894 895 private static Signature[] sSystemSignature; 896 897 private static Signature getFirstSignature(PackageInfo pkg) { 898 if (pkg != null && pkg.signatures != null && pkg.signatures.length > 0) { 899 return pkg.signatures[0]; 900 } 901 return null; 902 } 903 904 private static Signature getSystemSignature(PackageManager pm) { 905 try { 906 final PackageInfo sys = pm.getPackageInfo("android", PackageManager.GET_SIGNATURES); 907 return getFirstSignature(sys); 908 } catch (NameNotFoundException e) { 909 } 910 return null; 911 } 912 913 /** 914 * Returns elapsed time for the given millis, in the following format: 915 * 2d 5h 40m 29s 916 * @param context the application context 917 * @param millis the elapsed time in milli seconds 918 * @param withSeconds include seconds? 919 * @return the formatted elapsed time 920 */ 921 public static String formatElapsedTime(Context context, double millis, boolean withSeconds) { 922 StringBuilder sb = new StringBuilder(); 923 int seconds = (int) Math.floor(millis / 1000); 924 if (!withSeconds) { 925 // Round up. 926 seconds += 30; 927 } 928 929 int days = 0, hours = 0, minutes = 0; 930 if (seconds >= SECONDS_PER_DAY) { 931 days = seconds / SECONDS_PER_DAY; 932 seconds -= days * SECONDS_PER_DAY; 933 } 934 if (seconds >= SECONDS_PER_HOUR) { 935 hours = seconds / SECONDS_PER_HOUR; 936 seconds -= hours * SECONDS_PER_HOUR; 937 } 938 if (seconds >= SECONDS_PER_MINUTE) { 939 minutes = seconds / SECONDS_PER_MINUTE; 940 seconds -= minutes * SECONDS_PER_MINUTE; 941 } 942 if (withSeconds) { 943 if (days > 0) { 944 sb.append(context.getString(R.string.battery_history_days, 945 days, hours, minutes, seconds)); 946 } else if (hours > 0) { 947 sb.append(context.getString(R.string.battery_history_hours, 948 hours, minutes, seconds)); 949 } else if (minutes > 0) { 950 sb.append(context.getString(R.string.battery_history_minutes, minutes, seconds)); 951 } else { 952 sb.append(context.getString(R.string.battery_history_seconds, seconds)); 953 } 954 } else { 955 if (days > 0) { 956 sb.append(context.getString(R.string.battery_history_days_no_seconds, 957 days, hours, minutes)); 958 } else if (hours > 0) { 959 sb.append(context.getString(R.string.battery_history_hours_no_seconds, 960 hours, minutes)); 961 } else { 962 sb.append(context.getString(R.string.battery_history_minutes_no_seconds, minutes)); 963 } 964 } 965 return sb.toString(); 966 } 967} 968