Question

I’ve got a pretty simple app I’m trying to make. What I want to do is have an app that can send multiple texts to 1 or more recipients. I have accomplished this, but it doesn’t seem to send the full number of texts.

I assume the problem is that the texts are being sent to rapidly. I’m trying to just make the program wait a second, but when I just type in “Thread.sleep(1000);” I get an error saying there is an unhandled exception in Eclipse. Is there a way around this? Do I really need to do a try/catch for these few lines of code? If I do need a try/catch, what’s the best way to write it for this app?

Also, as a note I be allowing the sleep time to be customized in a later version, so please keep that in mind with your responses.

Integer i = 0;
while (i < numTextSend)
{
        sms.sendTextMessage(number, null, message, null, null);
        Thread.sleep(1000);
            i++;
}

[EDIT] Updated Code:

final Button confirm = (Button) findViewById(R.id.confirm);
confirm.setOnClickListener(new View.OnClickListener() {
      public void onClick(View v) {
        //Grab values from UI
            String number = String.valueOf(mNumber.getText().toString());
            Integer numTextSend = Integer.parseInt(mNumTextSend.getText().toString());
            String message = String.valueOf(mMessage.getText().toString());

            //Send SMS message(s)
            SmsManager sms = SmsManager.getDefault();
            Integer i = 0;
            while (i < numTextSend)
            {
                sms.sendTextMessage(number, null, message, null, null);
                //Make App wait 1 second
                i++;
            }
       }
 });

Answer 1

You can use postDelayed() of handler to execute any task at a delay

Sample code

    Handler h = new Handler();
    Runnable r = new Runnable() {

        @Override
        public void run() {
            // TODO Auto-generated method stub
            SmsManager sms = SmsManager.getDefault();
            Handler h = new Handler();
Runnable r = new Runnable() {

    @Override
    public void run() {
        // TODO Auto-generated method stub
        SmsManager sms = SmsManager.getDefault();
        sms.sendTextMessage(null, null, null, null,
                null);
    }
};
h.postDelayed(r, 1000);

    }
};