You can do this. You need to learn how to do multiple things.
You cannot do it like 
1)where the app would receive SMS from an Arduino
Your Arduino is sending that Text message? If so the Arduino ‘knows’ what the coordinates are so the Arduino could just send the coordinates to your app and display it in the Label using BlueTooth. For some reason you want to send an SMS using the Arduino. Yes, your Arduino probably can send a text message. When the text arrives, parse the message and extract the latitude and longitude.
Once you get that far, ask again about
2)and then the app displays the SMS on the label
3)extracts the GPS coordinates
5)displays the coordinates in the map.
Sure, it can display the coordinates once you know them. You can do this several ways. Do you know how to use the MIT Map component?