Merge "use telephony API to sent secret dial code"

    /**

     * Handles secret codes to launch arbitrary activities in the form of *#*#<code>#*#*.

     * If a secret code is encountered an Intent is started with the android_secret_code://<code>

     * If a secret code is encountered, an Intent is started with the android_secret_code://<code>

     * URI.

     *

     * @param context the context to use

     * @param input the text to check for a secret code in

     * @return true if a secret code was encountered

     * @return true if a secret code was encountered and intent is sent out

     */

    static boolean handleSecretCode(Context context, String input) {

        // Secret codes are in the form *#*#<code>#*#*

        int len = input.length();

        if (len > 8 && input.startsWith("*#*#") && input.endsWith("#*#*")) {

            final Intent intent = new Intent(SECRET_CODE_ACTION,

                    Uri.parse("android_secret_code://" + input.substring(4, len - 4)));

            context.sendBroadcast(intent);

            return true;

        final TelephonyManager telephonyManager =

                (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);

        if (telephonyManager != null) {

            return telephonyManager.sendDialerCode(input);

        }

        return false;

    }