Martijn Coenen | 5224608 | 2013-08-30 11:14:46 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 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.nfc.cardemulation; |
| 18 | |
| 19 | import android.annotation.SdkConstant; |
| 20 | import android.annotation.SdkConstant.SdkConstantType; |
| 21 | import android.app.ActivityThread; |
| 22 | import android.content.ComponentName; |
| 23 | import android.content.Context; |
| 24 | import android.content.pm.IPackageManager; |
| 25 | import android.content.pm.PackageManager; |
| 26 | import android.nfc.INfcCardEmulation; |
| 27 | import android.nfc.NfcAdapter; |
| 28 | import android.os.RemoteException; |
| 29 | import android.os.UserHandle; |
| 30 | import android.provider.Settings; |
| 31 | import android.util.Log; |
| 32 | |
| 33 | import java.util.HashMap; |
| 34 | import java.util.List; |
| 35 | |
Martijn Coenen | 35bf628 | 2013-10-14 20:39:59 +0200 | [diff] [blame] | 36 | /** |
| 37 | * This class can be used to query the state of |
| 38 | * NFC card emulation services. |
| 39 | * |
| 40 | * For a general introduction into NFC card emulation, |
| 41 | * please read the <a href="{@docRoot}guide/topics/nfc/ce.html"> |
| 42 | * NFC card emulation developer guide</a>.</p> |
| 43 | * |
| 44 | * <p class="note">Use of this class requires the |
| 45 | * {@link PackageManager#FEATURE_NFC_HOST_CARD_EMULATION} to be present |
| 46 | * on the device. |
| 47 | */ |
Martijn Coenen | 5224608 | 2013-08-30 11:14:46 -0700 | [diff] [blame] | 48 | public final class CardEmulation { |
| 49 | static final String TAG = "CardEmulation"; |
| 50 | |
| 51 | /** |
| 52 | * Activity action: ask the user to change the default |
| 53 | * card emulation service for a certain category. This will |
| 54 | * show a dialog that asks the user whether he wants to |
| 55 | * replace the current default service with the service |
| 56 | * identified with the ComponentName specified in |
| 57 | * {@link #EXTRA_SERVICE_COMPONENT}, for the category |
| 58 | * specified in {@link #EXTRA_CATEGORY} |
| 59 | */ |
| 60 | @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) |
| 61 | public static final String ACTION_CHANGE_DEFAULT = |
| 62 | "android.nfc.cardemulation.action.ACTION_CHANGE_DEFAULT"; |
| 63 | |
| 64 | /** |
Martijn Coenen | 35bf628 | 2013-10-14 20:39:59 +0200 | [diff] [blame] | 65 | * The category extra for {@link #ACTION_CHANGE_DEFAULT}. |
Martijn Coenen | 5224608 | 2013-08-30 11:14:46 -0700 | [diff] [blame] | 66 | * |
| 67 | * @see #ACTION_CHANGE_DEFAULT |
| 68 | */ |
| 69 | public static final String EXTRA_CATEGORY = "category"; |
| 70 | |
| 71 | /** |
Martijn Coenen | 35bf628 | 2013-10-14 20:39:59 +0200 | [diff] [blame] | 72 | * The service {@link ComponentName} object passed in as an |
| 73 | * extra for {@link #ACTION_CHANGE_DEFAULT}. |
Martijn Coenen | 5224608 | 2013-08-30 11:14:46 -0700 | [diff] [blame] | 74 | * |
| 75 | * @see #ACTION_CHANGE_DEFAULT |
| 76 | */ |
| 77 | public static final String EXTRA_SERVICE_COMPONENT = "component"; |
| 78 | |
| 79 | /** |
Martijn Coenen | 35bf628 | 2013-10-14 20:39:59 +0200 | [diff] [blame] | 80 | * Category used for NFC payment services. |
Martijn Coenen | 5224608 | 2013-08-30 11:14:46 -0700 | [diff] [blame] | 81 | */ |
| 82 | public static final String CATEGORY_PAYMENT = "payment"; |
| 83 | |
| 84 | /** |
Martijn Coenen | 35bf628 | 2013-10-14 20:39:59 +0200 | [diff] [blame] | 85 | * Category that can be used for all other card emulation |
| 86 | * services. |
Martijn Coenen | 5224608 | 2013-08-30 11:14:46 -0700 | [diff] [blame] | 87 | */ |
| 88 | public static final String CATEGORY_OTHER = "other"; |
| 89 | |
| 90 | /** |
| 91 | * Return value for {@link #getSelectionModeForCategory(String)}. |
| 92 | * |
| 93 | * <p>In this mode, the user has set a default service for this |
Martijn Coenen | 35bf628 | 2013-10-14 20:39:59 +0200 | [diff] [blame] | 94 | * category. |
| 95 | * |
| 96 | * <p>When using ISO-DEP card emulation with {@link HostApduService} |
| 97 | * or {@link OffHostApduService}, if a remote NFC device selects |
| 98 | * any of the Application IDs (AIDs) |
Martijn Coenen | 5224608 | 2013-08-30 11:14:46 -0700 | [diff] [blame] | 99 | * that the default service has registered in this category, |
| 100 | * that service will automatically be bound to to handle |
| 101 | * the transaction. |
Martijn Coenen | 5224608 | 2013-08-30 11:14:46 -0700 | [diff] [blame] | 102 | */ |
| 103 | public static final int SELECTION_MODE_PREFER_DEFAULT = 0; |
| 104 | |
| 105 | /** |
| 106 | * Return value for {@link #getSelectionModeForCategory(String)}. |
| 107 | * |
Martijn Coenen | 35bf628 | 2013-10-14 20:39:59 +0200 | [diff] [blame] | 108 | * <p>In this mode, when using ISO-DEP card emulation with {@link HostApduService} |
| 109 | * or {@link OffHostApduService}, whenever an Application ID (AID) of this category |
| 110 | * is selected, the user is asked which service he wants to use to handle |
Martijn Coenen | 5224608 | 2013-08-30 11:14:46 -0700 | [diff] [blame] | 111 | * the transaction, even if there is only one matching service. |
| 112 | */ |
| 113 | public static final int SELECTION_MODE_ALWAYS_ASK = 1; |
| 114 | |
| 115 | /** |
| 116 | * Return value for {@link #getSelectionModeForCategory(String)}. |
| 117 | * |
Martijn Coenen | 35bf628 | 2013-10-14 20:39:59 +0200 | [diff] [blame] | 118 | * <p>In this mode, when using ISO-DEP card emulation with {@link HostApduService} |
| 119 | * or {@link OffHostApduService}, the user will only be asked to select a service |
| 120 | * if the Application ID (AID) selected by the reader has been registered by multiple |
| 121 | * services. If there is only one service that has registered for the AID, |
| 122 | * that service will be invoked directly. |
Martijn Coenen | 5224608 | 2013-08-30 11:14:46 -0700 | [diff] [blame] | 123 | */ |
| 124 | public static final int SELECTION_MODE_ASK_IF_CONFLICT = 2; |
| 125 | |
| 126 | static boolean sIsInitialized = false; |
Martijn Coenen | 35bf628 | 2013-10-14 20:39:59 +0200 | [diff] [blame] | 127 | static HashMap<Context, CardEmulation> sCardEmus = new HashMap<Context, CardEmulation>(); |
Martijn Coenen | 5224608 | 2013-08-30 11:14:46 -0700 | [diff] [blame] | 128 | static INfcCardEmulation sService; |
| 129 | |
| 130 | final Context mContext; |
| 131 | |
| 132 | private CardEmulation(Context context, INfcCardEmulation service) { |
| 133 | mContext = context.getApplicationContext(); |
| 134 | sService = service; |
| 135 | } |
| 136 | |
Martijn Coenen | 35bf628 | 2013-10-14 20:39:59 +0200 | [diff] [blame] | 137 | /** |
| 138 | * Helper to get an instance of this class. |
| 139 | * |
| 140 | * @param adapter A reference to an NfcAdapter object. |
| 141 | * @return |
| 142 | */ |
Martijn Coenen | 5224608 | 2013-08-30 11:14:46 -0700 | [diff] [blame] | 143 | public static synchronized CardEmulation getInstance(NfcAdapter adapter) { |
| 144 | if (adapter == null) throw new NullPointerException("NfcAdapter is null"); |
| 145 | Context context = adapter.getContext(); |
| 146 | if (context == null) { |
| 147 | Log.e(TAG, "NfcAdapter context is null."); |
| 148 | throw new UnsupportedOperationException(); |
| 149 | } |
| 150 | if (!sIsInitialized) { |
| 151 | IPackageManager pm = ActivityThread.getPackageManager(); |
| 152 | if (pm == null) { |
| 153 | Log.e(TAG, "Cannot get PackageManager"); |
| 154 | throw new UnsupportedOperationException(); |
| 155 | } |
| 156 | try { |
| 157 | if (!pm.hasSystemFeature(PackageManager.FEATURE_NFC_HOST_CARD_EMULATION)) { |
| 158 | Log.e(TAG, "This device does not support card emulation"); |
| 159 | throw new UnsupportedOperationException(); |
| 160 | } |
| 161 | } catch (RemoteException e) { |
| 162 | Log.e(TAG, "PackageManager query failed."); |
| 163 | throw new UnsupportedOperationException(); |
| 164 | } |
| 165 | sIsInitialized = true; |
| 166 | } |
| 167 | CardEmulation manager = sCardEmus.get(context); |
| 168 | if (manager == null) { |
| 169 | // Get card emu service |
| 170 | INfcCardEmulation service = adapter.getCardEmulationService(); |
Martijn Coenen | aa1492d | 2014-04-11 12:54:22 -0700 | [diff] [blame^] | 171 | if (service == null) { |
| 172 | Log.e(TAG, "This device does not implement the INfcCardEmulation interface."); |
| 173 | throw new UnsupportedOperationException(); |
| 174 | } |
Martijn Coenen | 5224608 | 2013-08-30 11:14:46 -0700 | [diff] [blame] | 175 | manager = new CardEmulation(context, service); |
| 176 | sCardEmus.put(context, manager); |
| 177 | } |
| 178 | return manager; |
| 179 | } |
| 180 | |
| 181 | /** |
| 182 | * Allows an application to query whether a service is currently |
| 183 | * the default service to handle a card emulation category. |
| 184 | * |
| 185 | * <p>Note that if {@link #getSelectionModeForCategory(String)} |
Martijn Coenen | 35bf628 | 2013-10-14 20:39:59 +0200 | [diff] [blame] | 186 | * returns {@link #SELECTION_MODE_ALWAYS_ASK} or {@link #SELECTION_MODE_ASK_IF_CONFLICT}, |
| 187 | * this method will always return false. That is because in these |
| 188 | * selection modes a default can't be set at the category level. For categories where |
| 189 | * the selection mode is {@link #SELECTION_MODE_ALWAYS_ASK} or |
| 190 | * {@link #SELECTION_MODE_ASK_IF_CONFLICT}, use |
| 191 | * {@link #isDefaultServiceForAid(ComponentName, String)} to determine whether a service |
| 192 | * is the default for a specific AID. |
Martijn Coenen | 5224608 | 2013-08-30 11:14:46 -0700 | [diff] [blame] | 193 | * |
| 194 | * @param service The ComponentName of the service |
| 195 | * @param category The category |
| 196 | * @return whether service is currently the default service for the category. |
Martijn Coenen | 35bf628 | 2013-10-14 20:39:59 +0200 | [diff] [blame] | 197 | * |
| 198 | * <p class="note">Requires the {@link android.Manifest.permission#NFC} permission. |
Martijn Coenen | 5224608 | 2013-08-30 11:14:46 -0700 | [diff] [blame] | 199 | */ |
| 200 | public boolean isDefaultServiceForCategory(ComponentName service, String category) { |
| 201 | try { |
| 202 | return sService.isDefaultServiceForCategory(UserHandle.myUserId(), service, category); |
| 203 | } catch (RemoteException e) { |
| 204 | // Try one more time |
| 205 | recoverService(); |
| 206 | if (sService == null) { |
| 207 | Log.e(TAG, "Failed to recover CardEmulationService."); |
| 208 | return false; |
| 209 | } |
| 210 | try { |
| 211 | return sService.isDefaultServiceForCategory(UserHandle.myUserId(), service, |
| 212 | category); |
| 213 | } catch (RemoteException ee) { |
| 214 | Log.e(TAG, "Failed to recover CardEmulationService."); |
| 215 | return false; |
| 216 | } |
| 217 | } |
| 218 | } |
| 219 | |
| 220 | /** |
| 221 | * |
| 222 | * Allows an application to query whether a service is currently |
| 223 | * the default handler for a specified ISO7816-4 Application ID. |
| 224 | * |
| 225 | * @param service The ComponentName of the service |
| 226 | * @param aid The ISO7816-4 Application ID |
Martijn Coenen | 35bf628 | 2013-10-14 20:39:59 +0200 | [diff] [blame] | 227 | * @return whether the service is the default handler for the specified AID |
| 228 | * |
| 229 | * <p class="note">Requires the {@link android.Manifest.permission#NFC} permission. |
Martijn Coenen | 5224608 | 2013-08-30 11:14:46 -0700 | [diff] [blame] | 230 | */ |
| 231 | public boolean isDefaultServiceForAid(ComponentName service, String aid) { |
| 232 | try { |
| 233 | return sService.isDefaultServiceForAid(UserHandle.myUserId(), service, aid); |
| 234 | } catch (RemoteException e) { |
| 235 | // Try one more time |
| 236 | recoverService(); |
| 237 | if (sService == null) { |
| 238 | Log.e(TAG, "Failed to recover CardEmulationService."); |
| 239 | return false; |
| 240 | } |
| 241 | try { |
| 242 | return sService.isDefaultServiceForAid(UserHandle.myUserId(), service, aid); |
| 243 | } catch (RemoteException ee) { |
| 244 | Log.e(TAG, "Failed to reach CardEmulationService."); |
| 245 | return false; |
| 246 | } |
| 247 | } |
| 248 | } |
| 249 | |
| 250 | /** |
Martijn Coenen | 35bf628 | 2013-10-14 20:39:59 +0200 | [diff] [blame] | 251 | * Returns the service selection mode for the passed in category. |
Martijn Coenen | 5224608 | 2013-08-30 11:14:46 -0700 | [diff] [blame] | 252 | * Valid return values are: |
| 253 | * <p>{@link #SELECTION_MODE_PREFER_DEFAULT} the user has requested a default |
Martijn Coenen | 35bf628 | 2013-10-14 20:39:59 +0200 | [diff] [blame] | 254 | * service for this category, which will be preferred. |
Martijn Coenen | 5224608 | 2013-08-30 11:14:46 -0700 | [diff] [blame] | 255 | * <p>{@link #SELECTION_MODE_ALWAYS_ASK} the user has requested to be asked |
Martijn Coenen | 35bf628 | 2013-10-14 20:39:59 +0200 | [diff] [blame] | 256 | * every time what service he would like to use in this category. |
Martijn Coenen | 5224608 | 2013-08-30 11:14:46 -0700 | [diff] [blame] | 257 | * <p>{@link #SELECTION_MODE_ASK_IF_CONFLICT} the user will only be asked |
| 258 | * to pick a service if there is a conflict. |
| 259 | * @param category The category, for example {@link #CATEGORY_PAYMENT} |
Martijn Coenen | 35bf628 | 2013-10-14 20:39:59 +0200 | [diff] [blame] | 260 | * @return the selection mode for the passed in category |
Martijn Coenen | 5224608 | 2013-08-30 11:14:46 -0700 | [diff] [blame] | 261 | */ |
| 262 | public int getSelectionModeForCategory(String category) { |
| 263 | if (CATEGORY_PAYMENT.equals(category)) { |
| 264 | String defaultComponent = Settings.Secure.getString(mContext.getContentResolver(), |
| 265 | Settings.Secure.NFC_PAYMENT_DEFAULT_COMPONENT); |
| 266 | if (defaultComponent != null) { |
| 267 | return SELECTION_MODE_PREFER_DEFAULT; |
| 268 | } else { |
| 269 | return SELECTION_MODE_ALWAYS_ASK; |
| 270 | } |
| 271 | } else { |
| 272 | // All other categories are in "only ask if conflict" mode |
| 273 | return SELECTION_MODE_ASK_IF_CONFLICT; |
| 274 | } |
| 275 | } |
| 276 | |
| 277 | /** |
Martijn Coenen | aa1492d | 2014-04-11 12:54:22 -0700 | [diff] [blame^] | 278 | * Registers a group of AIDs for the specified service. |
| 279 | * |
| 280 | * <p>If an AID group for that category was previously |
| 281 | * registered for this service (either statically |
| 282 | * through the manifest, or dynamically by using this API), |
| 283 | * that AID group will be replaced with this one. |
| 284 | * |
| 285 | * <p>Note that you can only register AIDs for a service that |
| 286 | * is running under the same UID as you are. Typically |
| 287 | * this means you need to call this from the same |
| 288 | * package as the service itself, though UIDs can also |
| 289 | * be shared between packages using shared UIDs. |
| 290 | * |
| 291 | * @param service The component name of the service |
| 292 | * @param aidGroup The group of AIDs to be registered |
| 293 | * @return whether the registration was successful. |
| 294 | */ |
| 295 | public boolean registerAidGroupForService(ComponentName service, AidGroup aidGroup) { |
| 296 | try { |
| 297 | return sService.registerAidGroupForService(UserHandle.myUserId(), service, aidGroup); |
| 298 | } catch (RemoteException e) { |
| 299 | // Try one more time |
| 300 | recoverService(); |
| 301 | if (sService == null) { |
| 302 | Log.e(TAG, "Failed to recover CardEmulationService."); |
| 303 | return false; |
| 304 | } |
| 305 | try { |
| 306 | return sService.registerAidGroupForService(UserHandle.myUserId(), service, |
| 307 | aidGroup); |
| 308 | } catch (RemoteException ee) { |
| 309 | Log.e(TAG, "Failed to reach CardEmulationService."); |
| 310 | return false; |
| 311 | } |
| 312 | } |
| 313 | } |
| 314 | |
| 315 | /** |
| 316 | * Retrieves the currently registered AID group for the specified |
| 317 | * category for a service. |
| 318 | * |
| 319 | * <p>Note that this will only return AID groups that were dynamically |
| 320 | * registered using {@link #registerAidGroupForService(ComponentName, AidGroup)} |
| 321 | * method. It will *not* return AID groups that were statically registered |
| 322 | * in the manifest. |
| 323 | * |
| 324 | * @param service The component name of the service |
| 325 | * @param category The category of the AID group to be returned, e.g. {@link #CATEGORY_PAYMENT} |
| 326 | * @return The AID group, or null if it couldn't be found |
| 327 | */ |
| 328 | public AidGroup getAidGroupForService(ComponentName service, String category) { |
| 329 | try { |
| 330 | return sService.getAidGroupForService(UserHandle.myUserId(), service, category); |
| 331 | } catch (RemoteException e) { |
| 332 | recoverService(); |
| 333 | if (sService == null) { |
| 334 | Log.e(TAG, "Failed to recover CardEmulationService."); |
| 335 | return null; |
| 336 | } |
| 337 | try { |
| 338 | return sService.getAidGroupForService(UserHandle.myUserId(), service, category); |
| 339 | } catch (RemoteException ee) { |
| 340 | Log.e(TAG, "Failed to recover CardEmulationService."); |
| 341 | return null; |
| 342 | } |
| 343 | } |
| 344 | } |
| 345 | |
| 346 | /** |
| 347 | * Removes a registered AID group for the specified category for the |
| 348 | * service provided. |
| 349 | * |
| 350 | * <p>Note that this will only remove AID groups that were dynamically |
| 351 | * registered using the {@link #registerAidGroupForService(ComponentName, AidGroup)} |
| 352 | * method. It will *not* remove AID groups that were statically registered in |
| 353 | * the manifest. If a dynamically registered AID group is removed using |
| 354 | * this method, and a statically registered AID group for the same category |
| 355 | * exists in the manifest, that AID group will become active again. |
| 356 | * |
| 357 | * @param service The component name of the service |
| 358 | * @param category The category of the AID group to be removed, e.g. {@link #CATEGORY_PAYMENT} |
| 359 | * @return whether the group was successfully removed. |
| 360 | */ |
| 361 | public boolean removeAidGroupForService(ComponentName service, String category) { |
| 362 | try { |
| 363 | return sService.removeAidGroupForService(UserHandle.myUserId(), service, category); |
| 364 | } catch (RemoteException e) { |
| 365 | // Try one more time |
| 366 | recoverService(); |
| 367 | if (sService == null) { |
| 368 | Log.e(TAG, "Failed to recover CardEmulationService."); |
| 369 | return false; |
| 370 | } |
| 371 | try { |
| 372 | return sService.removeAidGroupForService(UserHandle.myUserId(), service, category); |
| 373 | } catch (RemoteException ee) { |
| 374 | Log.e(TAG, "Failed to reach CardEmulationService."); |
| 375 | return false; |
| 376 | } |
| 377 | } |
| 378 | } |
| 379 | |
| 380 | /** |
Martijn Coenen | 5224608 | 2013-08-30 11:14:46 -0700 | [diff] [blame] | 381 | * @hide |
| 382 | */ |
| 383 | public boolean setDefaultServiceForCategory(ComponentName service, String category) { |
| 384 | try { |
| 385 | return sService.setDefaultServiceForCategory(UserHandle.myUserId(), service, category); |
| 386 | } catch (RemoteException e) { |
| 387 | // Try one more time |
| 388 | recoverService(); |
| 389 | if (sService == null) { |
| 390 | Log.e(TAG, "Failed to recover CardEmulationService."); |
| 391 | return false; |
| 392 | } |
| 393 | try { |
| 394 | return sService.setDefaultServiceForCategory(UserHandle.myUserId(), service, |
| 395 | category); |
| 396 | } catch (RemoteException ee) { |
| 397 | Log.e(TAG, "Failed to reach CardEmulationService."); |
| 398 | return false; |
| 399 | } |
| 400 | } |
| 401 | } |
| 402 | |
| 403 | /** |
| 404 | * @hide |
| 405 | */ |
| 406 | public boolean setDefaultForNextTap(ComponentName service) { |
| 407 | try { |
| 408 | return sService.setDefaultForNextTap(UserHandle.myUserId(), service); |
| 409 | } catch (RemoteException e) { |
| 410 | // Try one more time |
| 411 | recoverService(); |
| 412 | if (sService == null) { |
| 413 | Log.e(TAG, "Failed to recover CardEmulationService."); |
| 414 | return false; |
| 415 | } |
| 416 | try { |
| 417 | return sService.setDefaultForNextTap(UserHandle.myUserId(), service); |
| 418 | } catch (RemoteException ee) { |
| 419 | Log.e(TAG, "Failed to reach CardEmulationService."); |
| 420 | return false; |
| 421 | } |
| 422 | } |
| 423 | } |
Martijn Coenen | 35bf628 | 2013-10-14 20:39:59 +0200 | [diff] [blame] | 424 | |
Martijn Coenen | 5224608 | 2013-08-30 11:14:46 -0700 | [diff] [blame] | 425 | /** |
| 426 | * @hide |
| 427 | */ |
| 428 | public List<ApduServiceInfo> getServices(String category) { |
| 429 | try { |
| 430 | return sService.getServices(UserHandle.myUserId(), category); |
| 431 | } catch (RemoteException e) { |
| 432 | // Try one more time |
| 433 | recoverService(); |
| 434 | if (sService == null) { |
| 435 | Log.e(TAG, "Failed to recover CardEmulationService."); |
| 436 | return null; |
| 437 | } |
| 438 | try { |
| 439 | return sService.getServices(UserHandle.myUserId(), category); |
| 440 | } catch (RemoteException ee) { |
| 441 | Log.e(TAG, "Failed to reach CardEmulationService."); |
| 442 | return null; |
| 443 | } |
| 444 | } |
| 445 | } |
| 446 | |
| 447 | void recoverService() { |
| 448 | NfcAdapter adapter = NfcAdapter.getDefaultAdapter(mContext); |
| 449 | sService = adapter.getCardEmulationService(); |
| 450 | } |
| 451 | } |