am 7aaf2414: Fixing issue where carrier name shows up in call log on single sim devices.

     * Extract account color from PhoneAccount object.

     */

    public static int getAccountColor(Context context, PhoneAccountHandle accountHandle) {

        PhoneAccount account = getAccountOrNull(context, accountHandle);

        TelecomManager telecomManager =

                (TelecomManager) context.getSystemService(Context.TELECOM_SERVICE);

        final PhoneAccount account = telecomManager.getPhoneAccount(accountHandle);

        // For single-sim devices the PhoneAccount will be NO_HIGHLIGHT_COLOR by default, so it is

        // safe to always use the account highlight color.

        return account == null ? PhoneAccount.NO_HIGHLIGHT_COLOR : account.getHighlightColor();

    }

    /**

     * Retrieve the account metadata.

     * Retrieve the account metadata, but if the account does not exist or the device has only a

     * single registered and enabled account, return null.

     */

    private static PhoneAccount getAccountOrNull(Context context,

            PhoneAccountHandle accountHandle) {

        TelecomManager telecomManager =

                (TelecomManager) context.getSystemService(Context.TELECOM_SERVICE);

        final PhoneAccount account = telecomManager.getPhoneAccount(accountHandle);

        if (!telecomManager.hasMultipleCallCapableAccounts()) {

            return null;

        }

        return account;

    }

}