How to check user entered own phone number in EditText?

Question

Mobile number will be entered in an edittext by user on registration page in my Android application. How can I check that user entered his/her mobile number not other\'s ?

Answer 1

Just want to add a bit here to above explanations in the above answers. Which will save time for others as well.

In my case this method didn't returned any mobile number, an empty string was returned. It was due to the case that I had ported my number on the new sim. So if I go into the Settings>About Phone>Status>My Phone Number it shows me "Unknown".

This is probably because you have ported the number from one network to other.

If you are not able to check the number from API Then:

One way of doing that is you generate a text message to the Number and send a Random Generated no to the Mobile Number. You will have to ask the user to enter this Random generated number into your Application. Once it is entered in the application then you can send it onto the server to check whether the number passed in the text is correct or not (Which you have already saved on server against that mobile number).

I hope this makes sense.