Android: Unicode/Charset problems when sending an SMS (sendTextMessage)

Question

Basically I have a working application that sends an SMS after receiving an SMS.

Everything works fine, except when the SMS text to send

Answer 1

I has the same problem with special characters. When I change message MAX_SMS_MESSAGE_LENGTH to 70 everything works well. Look at that link:

https://forums.macrumors.com/threads/special-characters-in-sms-turn-them-shorter-70-characters-old-issue-never-solved.1030577/

This is my code:

    public static void sendSMS(String phoneNumber, String message, Context context) {

    String SENT = "SMS_SENT";
    int MAX_SMS_MESSAGE_LENGTH = 70;

    SmsManager smsManager = SmsManager.getDefault();
    PendingIntent sentPI;
    sentPI = PendingIntent.getBroadcast(context, 0,new Intent(SENT), 0);

    try {
        if(message.length() > MAX_SMS_MESSAGE_LENGTH) {
            ArrayList messageList = SmsManager.getDefault().divideMessage(message);
            smsManager.sendMultipartTextMessage(phoneNumber, null, messageList, null, null);
        } else {
            smsManager.sendTextMessage(phoneNumber, null, message, sentPI, null);
        }
    } catch (Exception e) {
        Log.e("SmsProvider", "" + e);
    }
}

Of course you can insert a controller that will check if the message contains some special character and then change MAX_SMS_MESSAGE_LENGTH from 160 to 70. I always have special characters in my app.