How to use

android.telecom.PhoneAccountHandle

constructor

 private static PhoneAccountHandle createHandle(String packageName, String id) {
  return new PhoneAccountHandle(new ComponentName(packageName, "component_class_name"), id);
 }
}

@Test
@Config(minSdk = O)
public void shouldCreateForPhoneAccountHandle() {
 PhoneAccountHandle phoneAccountHandle =
   new PhoneAccountHandle(
     new ComponentName(ApplicationProvider.getApplicationContext(), Object.class), "handle");
 TelephonyManager mockTelephonyManager = mock(TelephonyManager.class);
 shadowOf(telephonyManager)
   .setTelephonyManagerForHandle(phoneAccountHandle, mockTelephonyManager);
 assertEquals(
   mockTelephonyManager, telephonyManager.createForPhoneAccountHandle(phoneAccountHandle));
}

@Test
@Config(minSdk = O) // The setter on the real manager was added in O
public void shouldSetVoicemailRingtoneUri() {
 PhoneAccountHandle phoneAccountHandle =
   new PhoneAccountHandle(
     new ComponentName(ApplicationProvider.getApplicationContext(), Object.class), "handle");
 Uri ringtoneUri = Uri.fromParts("file", "ringtone.mp3", /* fragment = */ null);
 // Note: Using the real manager to set, instead of the shadow.
 telephonyManager.setVoicemailRingtoneUri(phoneAccountHandle, ringtoneUri);
 assertEquals(ringtoneUri, telephonyManager.getVoicemailRingtoneUri(phoneAccountHandle));
}

@Test
@Config(minSdk = N)
public void shouldGiveVoiceVibrationEnabled() {
 PhoneAccountHandle phoneAccountHandle =
   new PhoneAccountHandle(
     new ComponentName(ApplicationProvider.getApplicationContext(), Object.class), "handle");
 shadowOf(telephonyManager).setVoicemailVibrationEnabled(phoneAccountHandle, true);
 assertTrue(telephonyManager.isVoicemailVibrationEnabled(phoneAccountHandle));
}

@Test
@Config(minSdk = N)
public void shouldGiveVoicemailRingtoneUri() {
 PhoneAccountHandle phoneAccountHandle =
   new PhoneAccountHandle(
     new ComponentName(ApplicationProvider.getApplicationContext(), Object.class), "handle");
 Uri ringtoneUri = Uri.fromParts("file", "ringtone.mp3", /* fragment = */ null);
 shadowOf(telephonyManager).setVoicemailRingtoneUri(phoneAccountHandle, ringtoneUri);
 assertEquals(ringtoneUri, telephonyManager.getVoicemailRingtoneUri(phoneAccountHandle));
}

/**
 * Compose PhoneAccount object from component name and account id.
 */
@Nullable
public static PhoneAccountHandle getAccount(@Nullable String componentString,
    @Nullable String accountId) {
  if (TextUtils.isEmpty(componentString) || TextUtils.isEmpty(accountId)) {
    return null;
  }
  final ComponentName componentName = ComponentName.unflattenFromString(componentString);
  if (componentName == null) {
    return null;
  }
  return new PhoneAccountHandle(componentName, accountId);
}

accountHandle = new PhoneAccountHandle(
  ComponentName.unflattenFromString(callToNotify.accountComponentName),
  callToNotify.accountId);