How to use

getPhoneAccount

method

in

android.telecom.TelecomManager

@Test
@Config(minSdk = LOLLIPOP_MR1)
public void clearAccountsForPackage() {
 PhoneAccountHandle accountHandle1 = createHandle("a.package", "id1");
 telecomService.registerPhoneAccount(PhoneAccount.builder(accountHandle1, "another_package")
   .build());
 PhoneAccountHandle accountHandle2 = createHandle("some.other.package", "id2");
 telecomService.registerPhoneAccount(PhoneAccount.builder(accountHandle2, "another_package")
   .build());
 telecomService.clearAccountsForPackage(accountHandle1.getComponentName().getPackageName());
 assertThat(telecomService.getPhoneAccount(accountHandle1)).isNull();
 assertThat(telecomService.getPhoneAccount(accountHandle2)).isNotNull();
}

@Test
public void registerAndUnRegister() {
 assertThat(shadowOf(telecomService).getAllPhoneAccountsCount()).isEqualTo(0);
 assertThat(shadowOf(telecomService).getAllPhoneAccounts()).hasSize(0);
 PhoneAccountHandle handler = createHandle("id");
 PhoneAccount phoneAccount = PhoneAccount.builder(handler, "main_account").build();
 telecomService.registerPhoneAccount(phoneAccount);
 assertThat(shadowOf(telecomService).getAllPhoneAccountsCount()).isEqualTo(1);
 assertThat(shadowOf(telecomService).getAllPhoneAccounts()).hasSize(1);
 assertThat(telecomService.getAllPhoneAccountHandles()).hasSize(1);
 assertThat(telecomService.getAllPhoneAccountHandles()).contains(handler);
 assertThat(telecomService.getPhoneAccount(handler).getLabel()).isEqualTo(phoneAccount.getLabel());
 telecomService.unregisterPhoneAccount(handler);
 assertThat(shadowOf(telecomService).getAllPhoneAccountsCount()).isEqualTo(0);
 assertThat(shadowOf(telecomService).getAllPhoneAccounts()).hasSize(0);
 assertThat(telecomService.getAllPhoneAccountHandles()).hasSize(0);
}

/**
 * Return the {@link PhoneAccount} for a specified {@link PhoneAccountHandle}. Object includes
 * resources which can be used in a user interface.
 *
 * @param telecomManager the {@link TelecomManager} used for method calls, if possible.
 * @param account The {@link PhoneAccountHandle}.
 * @return The {@link PhoneAccount} object or null if it doesn't exist.
 */
@Nullable
public static PhoneAccount getPhoneAccount(@Nullable TelecomManager telecomManager,
    @Nullable PhoneAccountHandle accountHandle) {
  if (telecomManager != null && (CompatUtils.isMethodAvailable(
      TELECOM_MANAGER_CLASS, "getPhoneAccount", PhoneAccountHandle.class))) {
    return telecomManager.getPhoneAccount(accountHandle);
  }
  return null;
}

final PhoneAccount account = telecomManager.getPhoneAccount(mPhoneAccountHandle);

PhoneAccount account = mTelecomManager.getPhoneAccount(accountHandle);
if (account == null) {
  return rowView;

  /**
   * Determines if one of the call capable phone accounts defined supports calling with a subject
   * specified.
   *
   * @param context The context.
   * @return {@code true} if one of the call capable phone accounts supports calling with a
   *      subject specified, {@code false} otherwise.
   */
  public static boolean isCallWithSubjectSupported(Context context) {
    if (!PermissionsUtil.hasPermission(context, android.Manifest.permission.READ_PHONE_STATE)
        || !CompatUtils.isCallSubjectCompatible()) {
      return false;
    }
    TelecomManager telecommMgr = (TelecomManager)
        context.getSystemService(Context.TELECOM_SERVICE);
    if (telecommMgr == null) {
      return false;
    }

    List<PhoneAccountHandle> accountHandles = telecommMgr.getCallCapablePhoneAccounts();
    for (PhoneAccountHandle accountHandle : accountHandles) {
      PhoneAccount account = telecommMgr.getPhoneAccount(accountHandle);
      if (account != null && account.hasCapabilities(PhoneAccount.CAPABILITY_CALL_SUBJECT)) {
        return true;
      }
    }
    return false;
  }
}

PhoneAccount account = telecommMgr.getPhoneAccount(accountHandle);
if (account != null) {
  if (account.hasCapabilities(PhoneAccount.CAPABILITY_VIDEO_CALLING)) {