Send SMS in iOS

Question

I am brand new in iOS developing and xCode. Previously i developed android and i know i should work with Intent to make call and send SMS in android App. Now i want to develop a simple App that when i press a Button it send a SMS to a specific number. So i installed a Mac OS 10.11 VM on my Ubuntu. And could connect connect my iPhone 5 to that and run my simple Hello World App in real iPhone Device and not simulator. Now i created a Button in StoryBoard and make a funcion by following this article : Send SMS Message Toturial

Also look at other links and was similar. Here is my simple ViewController.swift.

import UIKit
import MessageUI

class ViewController: UIViewController, MFMessageComposeViewControllerDelegate {

    override func viewDidLoad() {
        super.viewDidLoad()

    }

    @IBAction func sendMessage(sender: AnyObject) {

        print("Send button pressed") //display a text to make sure is calling

        if MFMessageComposeViewController.canSendText() {
            let controller = MFMessageComposeViewController()
            controller.body = "TestMessage "
            controller.recipients = ["xxxxxxxxx", "xxxxxxxxx"] // sending for two numbers
            controller.messageComposeDelegate = self
            self.presentViewController(controller, animated: true, completion: nil)
        }
    }
    func messageComposeViewController(controller: MFMessageComposeViewController, didFinishWithResult result: MessageComposeResult) {

        switch (result.rawValue) {
        case MessageComposeResultCancelled.rawValue:
            print("Message was cancelled")
            self.dismissViewControllerAnimated(true, completion: nil)

        case MessageComposeResultFailed.rawValue:
            print("Message failed")
            self.dismissViewControllerAnimated(true, completion: nil)

        case MessageComposeResultSent.rawValue:
            print("Message was sent")
            self.dismissViewControllerAnimated(true, completion: nil)

        default:
            break;
        }
    }

}

And also created a Simple Button and link that to sendMessage above. When i run the app, displays the button and when i press it, it seems it is doing something, but the SMS is not sent. Any Idea?? I really appreciate it.

Update : As our friend said i added print("Send button pressed") in sendMessage Button, so i find out the button call sendMessage when i press it.

Can you put `print("Send button pressed")` in your `sendMessage` function? If you don't see that message in your console, the function is probably not getting called. — kabiroberai, Jul 24 '16 at 11:20
I added this line before and after if in SendMessage funtion, where should is see that print?? I cant see in debug area or in iphone screen, Now what should i do? — Alireza, Jul 24 '16 at 11:31
Did you connect your button from the storyboard to the code? — kabiroberai, Jul 24 '16 at 11:32
Yeah, i did, i pressed control button and then click on button and drag it to ViewController and now that is connected to sendMessage function. — Alireza, Jul 24 '16 at 11:33
sorry sir, now i see the log, it displays the text i inserted in sendMessage function, i mean this method works : print("Send button pressed") — Alireza, Jul 24 '16 at 11:38
Can you update your question with the print statement I gave? — kabiroberai, Jul 24 '16 at 11:40
I did this and when i press button i saw the text in output console of xCode. — Alireza, Jul 24 '16 at 11:45
I mean can you put the code in the question above? So that I can see where you placed it — kabiroberai, Jul 24 '16 at 11:46
What happens if you put the `print` statement inside the `if` block? — kabiroberai, Jul 24 '16 at 12:02
@kabiroberai In debug area and All Output part, it display the text("Send button pressed") when i press button. — Alireza, Jul 24 '16 at 12:04
put the `print` inside of `if (MFMessageComposeViewController.canSendText()) {...}` — kabiroberai, Jul 24 '16 at 12:05
@kabiroberai : I did not clear the first print before if and now put print after if statement, now display twice, The text is displaying twice. — Alireza, Jul 24 '16 at 12:08
In the screen,It seems The button goes down and again come up in first place. — Alireza, Jul 24 '16 at 12:10
I'm cross-referencing the tutorial to check what's different in your code — kabiroberai, Jul 24 '16 at 12:18
@kabiroberai Another thing, there was ! exactly after controller: MFMessageComposeViewController in messageComposeViewController in that toturial, xCode gives me warning to delete the ! Now i added "!" again and did not take care to xCode warning, but still no success. And i also i give the number completely. with no - or _ or anything. My country code and the mobile number. — Alireza, Jul 24 '16 at 12:52

Alireza · Accepted Answer · 2016-07-25T14:36:30.967

I finally did it, I mixed up two solutions, First of all,i changed the function of sendMessage and renamed it to sendText, in this way :

    @IBAction func sendText(sender: AnyObject) {
    if (MFMessageComposeViewController.canSendText()) {
        let controller = MFMessageComposeViewController()
        controller.body = "Text Body"
        controller.recipients = ["xxxxxxxxxxx"]
        controller.messageComposeDelegate = self
        self.presentViewController(controller, animated: true, completion: nil)
    }
}

And the protocol of MessageComposeViewController is :

func messageComposeViewController(controller: MFMessageComposeViewController, didFinishWithResult result: MessageComposeResult) {
    switch (result.rawValue) {
    case MessageComposeResultCancelled.rawValue:
        print("Message was cancelled")
        self.dismissViewControllerAnimated(true, completion: nil)
    case MessageComposeResultFailed.rawValue:
        print("Message failed")
        self.dismissViewControllerAnimated(true, completion: nil)
    case MessageComposeResultSent.rawValue:
        print("Message was sent")
        self.dismissViewControllerAnimated(true, completion: nil)
    default:
        break;
    }
}

And then click on the button in storyboards, and press control key and drag the button to ViewController and select the sendText function, now it works correctly.

Thx to my Friend @Kabiroberai for help and give some time.

score 1 · Answer 2 · answered Aug 28 '17 at 11:34

Heres the bottom function converted to swift 4:

func messageComposeViewController(_ controller: MFMessageComposeViewController, didFinishWith result: MessageComposeResult) {
    switch (result.rawValue) {
    case MessageComposeResult.cancelled.rawValue:
        print("Message was cancelled")
        self.dismiss(animated: true, completion: nil)
    case MessageComposeResult.failed.rawValue:
        print("Message failed")
        self.dismiss(animated: true, completion: nil)
    case MessageComposeResult.sent.rawValue:
        print("Message was sent")
        self.dismiss(animated: true, completion: nil)
    default:
        break;
    }
}

Send SMS in iOS

2 Answers2