package com.javatpoint.telephonymanager;

import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.telephony.TelephonyManager;
import android.view.Menu;
import android.widget.TextView;

public class MainActivity extends Activity {
   TextView textView1;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        textView1=(TextView)findViewById(R.id.textView1);
       
        //Get the instance of TelephonyManager
        TelephonyManager  tm=(TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
       
        //Calling the methods of TelephonyManager the returns the information
        String IMEINumber=tm.getDeviceId();
        String subscriberID=tm.getDeviceId();
        String SIMSerialNumber=tm.getSimSerialNumber();
        String networkCountryISO=tm.getNetworkCountryIso();
        String SIMCountryISO=tm.getSimCountryIso();
        String softwareVersion=tm.getDeviceSoftwareVersion();
        String voiceMailNumber=tm.getVoiceMailNumber();
        
        //Get the phone type
        String strphoneType="";
        
        int phoneType=tm.getPhoneType();

        switch (phoneType) 
        {
                case (TelephonyManager.PHONE_TYPE_CDMA):
                           strphoneType="CDMA";
                               break;
                case (TelephonyManager.PHONE_TYPE_GSM): 
                           strphoneType="GSM";              
                               break;
                case (TelephonyManager.PHONE_TYPE_NONE):
                strphoneType="NONE";              
                                break;
         }
        
        //getting information if phone is in roaming
        boolean isRoaming=tm.isNetworkRoaming();
        
        String info="Phone Details:\n";
        info+="\n IMEI Number:"+IMEINumber;
        info+="\n SubscriberID:"+subscriberID;
        info+="\n Sim Serial Number:"+SIMSerialNumber;
        info+="\n Network Country ISO:"+networkCountryISO;
        info+="\n SIM Country ISO:"+SIMCountryISO;
        info+="\n Software Version:"+softwareVersion;
        info+="\n Voice Mail Number:"+voiceMailNumber;
        info+="\n Phone Network Type:"+strphoneType;
        info+="\n In Roaming? :"+isRoaming;
        
        textView1.setText(info);//displaying the information in the textView
    }

   
}