Develop Reference

Convert country code 2 letter to 3 letter in Objective-C

I'm working on a function that gets the country code from the phone, but when I get the country code it consists of 2 letters, but I want it to return three letters.
For example US -> USA
In Android, java supports converting from 2 characters to 3 characters with the following code:
Locale locale = new Locale("en", countryCode);
return locale.getISO3Country();
But in iOS with Objective-C I don't know how to convert it, so can anyone help me to solve this problem?

for the sake of standardisation there is no ISO 3166-1 alpha-3 code on apple platforms to convert to. More the other way around, you could use a 3 letter code and still find the 2 letter code.
and if you want to keep at least some consistency to your android code then you need to implement some LUT table supporting this off-standard feature yourself. The available list is not very long anyway (256 codes).
NSArray *isoCountrys = [NSLocale ISOCountryCodes];
for (NSString *code in isoCountrys) {
NSLocale *locale = [[NSLocale alloc] initWithLocaleIdentifier:code];
// country name in native language
NSString *country = [locale localizedStringForCountryCode:code];
NSString *iso3 = LUTisoA3counterpartCodes[code];
NSLog(#"%# %# %# %#",code, iso3, country, locale.localeIdentifier);
}
Docu NSLocale -localizedStringForCountryCode:
Docu NSLocale -countryCode
the LUT could look like.. and is much better stored in a plist then the following runtime allocated dictionary.
NSDictionary *LUTisoA3counterpartCodes = #{
#"AC":#"SHN",#"AW":#"ABW",#"AF":#"AFG",#"AO":#"AGO",#"AI":#"AIA",#"AX":#"ALA",
#"AL":#"ALB",#"AD":#"AND",#"AE":#"ARE",#"AR":#"ARG",#"AM":#"ARM",#"AS":#"ASM",
#"AQ":#"ATA",#"TF":#"ATF",#"AG":#"ATG",#"AU":#"AUS",#"AT":#"AUT",#"AZ":#"AZE",
#"BI":#"BDI",#"BE":#"BEL",#"BJ":#"BEN",#"BQ":#"BES",#"BF":#"BFA",#"BD":#"BGD",
#"BG":#"BGR",#"BH":#"BHR",#"BS":#"BHS",#"BA":#"BIH",#"BL":#"BLM",#"BY":#"BLR",
#"BZ":#"BLZ",#"BM":#"BMU",#"BO":#"BOL",#"BR":#"BRA",#"BB":#"BRB",#"BN":#"BRN",
#"BT":#"BTN",#"BV":#"BVT",#"BW":#"BWA",#"CF":#"CAF",#"CA":#"CAN",#"CC":#"CCK",
#"CH":#"CHE",#"CL":#"CHL",#"CN":#"CHN",#"CI":#"CIV",#"CM":#"CMR",#"CD":#"COD",
#"CG":#"COG",#"CK":#"COK",#"CO":#"COL",#"KM":#"COM",#"CV":#"CPV",#"CR":#"CRI",
#"CU":#"CUB",#"CW":#"CUW",#"CX":#"CXR",#"KY":#"CYM",#"CY":#"CYP",#"CZ":#"CZE",
#"DE":#"DEU",#"DJ":#"DJI",#"DM":#"DMA",#"DK":#"DNK",#"DO":#"DOM",#"DZ":#"DZA",
#"EC":#"ECU",#"EG":#"EGY",#"ER":#"ERI",#"EH":#"ESH",#"ES":#"ESP",#"EE":#"EST",
#"ET":#"ETH",#"FI":#"FIN",#"FJ":#"FJI",#"FK":#"FLK",#"FR":#"FRA",#"FO":#"FRO",
#"FM":#"FSM",#"GA":#"GAB",#"GB":#"GBR",#"GE":#"GEO",#"GG":#"GGY",#"GH":#"GHA",
#"GI":#"GIB",#"GN":#"GIN",#"GP":#"GLP",#"GM":#"GMB",#"GW":#"GNB",#"GQ":#"GNQ",
#"GR":#"GRC",#"GD":#"GRD",#"GL":#"GRL",#"GT":#"GTM",#"GF":#"GUF",#"GU":#"GUM",
#"GY":#"GUY",#"HK":#"HKG",#"HM":#"HMD",#"HN":#"HND",#"HR":#"HRV",#"HT":#"HTI",
#"HU":#"HUN",#"ID":#"IDN",#"IM":#"IMN",#"IN":#"IND",#"IO":#"IOT",#"IE":#"IRL",
#"IR":#"IRN",#"IQ":#"IRQ",#"IS":#"ISL",#"IL":#"ISR",#"IT":#"ITA",#"JM":#"JAM",
#"JE":#"JEY",#"JO":#"JOR",#"JP":#"JPN",#"KZ":#"KAZ",#"KE":#"KEN",#"KG":#"KGZ",
#"KH":#"KHM",#"KI":#"KIR",#"KN":#"KNA",#"KR":#"KOR",#"KW":#"KWT",#"LA":#"LAO",
#"LB":#"LBN",#"LR":#"LBR",#"LY":#"LBY",#"LC":#"LCA",#"LI":#"LIE",#"LK":#"LKA",
#"LS":#"LSO",#"LT":#"LTU",#"LU":#"LUX",#"LV":#"LVA",#"MO":#"MAC",#"MF":#"MAF",
#"MA":#"MAR",#"MC":#"MCO",#"MD":#"MDA",#"MG":#"MDG",#"MV":#"MDV",#"MX":#"MEX",
#"MH":#"MHL",#"MK":#"MKD",#"ML":#"MLI",#"MT":#"MLT",#"MM":#"MMR",#"ME":#"MNE",
#"MN":#"MNG",#"MP":#"MNP",#"MZ":#"MOZ",#"MR":#"MRT",#"MS":#"MSR",#"MQ":#"MTQ",
#"MU":#"MUS",#"MW":#"MWI",#"MY":#"MYS",#"YT":#"MYT",#"NA":#"NAM",#"NC":#"NCL",
#"NE":#"NER",#"NF":#"NFK",#"NG":#"NGA",#"NI":#"NIC",#"NU":#"NIU",#"NL":#"NLD",
#"NO":#"NOR",#"NP":#"NPL",#"NR":#"NRU",#"NZ":#"NZL",#"OM":#"OMN",#"PK":#"PAK",
#"PA":#"PAN",#"PN":#"PCN",#"PE":#"PER",#"PH":#"PHL",#"PW":#"PLW",#"PG":#"PNG",
#"PL":#"POL",#"PR":#"PRI",#"KP":#"PRK",#"PT":#"PRT",#"PY":#"PRY",#"PS":#"PSE",
#"PF":#"PYF",#"QA":#"QAT",#"RE":#"REU",#"RO":#"ROU",#"RU":#"RUS",#"RW":#"RWA",
#"SA":#"SAU",#"SD":#"SDN",#"SN":#"SEN",#"SG":#"SGP",#"GS":#"SGS",#"SH":#"SHN",
#"SJ":#"SJM",#"SB":#"SLB",#"SL":#"SLE",#"SV":#"SLV",#"SM":#"SMR",#"SO":#"SOM",
#"PM":#"SPM",#"RS":#"SRB",#"SS":#"SSD",#"ST":#"STP",#"SR":#"SUR",#"SK":#"SVK",
#"SI":#"SVN",#"SE":#"SWE",#"SZ":#"SWZ",#"SX":#"SXM",#"SC":#"SYC",#"SY":#"SYR",
#"TC":#"TCA",#"TD":#"TCD",#"TG":#"TGO",#"TH":#"THA",#"TJ":#"TJK",#"TK":#"TKL",
#"TM":#"TKM",#"TL":#"TLS",#"TO":#"TON",#"TT":#"TTO",#"TN":#"TUN",#"TR":#"TUR",
#"TV":#"TUV",#"TW":#"TWN",#"TZ":#"TZA",#"UG":#"UGA",#"UA":#"UKR",#"UM":#"UMI",
#"UY":#"URY",#"US":#"USA",#"UZ":#"UZB",#"VA":#"VAT",#"VC":#"VCT",#"VE":#"VEN",
#"VG":#"VGB",#"VI":#"VIR",#"VN":#"VNM",#"VU":#"VUT",#"WF":#"WLF",#"WS":#"WSM",
#"XK":#"XKV",#"YE":#"YEM",#"ZA":#"ZAF",#"ZM":#"ZMB",#"ZW":#"ZWE",
//unknown status or codes, to be changed soon
#"DG":#"DGA" , //Diego Garcia
#"EA":#"EA_" , //Ceuta and Melilla
#"CP":#"CPT" , //Clipperton Island -> French Polynesia
#"IC":#"IC_" , //Kanarian Island
#"TA":#"TAA" , //டிரிஸ்டன் டா குன்ஹா , Tristan da Cunha -> St.Helena
};
this LUT makes it easy to lookup by 2 letter code and get the 3 letter codes. And in reality the list is much longer and matter of permanent changes.
and if you trust the sorting of Apples API you could just use a static NSArray instead of a plist or NSDictionary. The following prints it for use..
int i=1;
fprintf(stderr,"\nstatic NSString *isoA3accordingToAppleSorting[256] = {\n");
for (NSString *code in isoCountrys) {
if (i%20 == 19) fprintf(stderr,"\n");
NSString *iso3 = LUTisoA3counterpartCodes[code];
fprintf(stderr,"#\"%s\",",iso3.UTF8String);
i++;
}
fprintf(stderr,"};\n");
which looks like..
static NSString *countryCodeAsA3accordingToAppleSorting[256] = {
#"SHN",#"AND",#"ARE",#"AFG",#"ATG",#"AIA",#"ALB",#"ARM",#"AGO",#"ATA",#"ARG",#"ASM",#"AUT",#"AUS",#"ABW",#"ALA",#"AZE",#"BIH",
#"BRB",#"BGD",#"BEL",#"BFA",#"BGR",#"BHR",#"BDI",#"BEN",#"BLM",#"BMU",#"BRN",#"BOL",#"BES",#"BRA",#"BHS",#"BTN",#"BVT",#"BWA",#"BLR",#"BLZ",
#"CAN",#"CCK",#"COD",#"CAF",#"COG",#"CHE",#"CIV",#"COK",#"CHL",#"CMR",#"CHN",#"COL",#"CPT",#"CRI",#"CUB",#"CPV",#"CUW",#"CXR",#"CYP",#"CZE",
#"DEU",#"DGA",#"DJI",#"DNK",#"DMA",#"DOM",#"DZA",#"EA_",#"ECU",#"EST",#"EGY",#"ESH",#"ERI",#"ESP",#"ETH",#"FIN",#"FJI",#"FLK",#"FSM",#"FRO",
#"FRA",#"GAB",#"GBR",#"GRD",#"GEO",#"GUF",#"GGY",#"GHA",#"GIB",#"GRL",#"GMB",#"GIN",#"GLP",#"GNQ",#"GRC",#"SGS",#"GTM",#"GUM",#"GNB",#"GUY",
#"HKG",#"HMD",#"HND",#"HRV",#"HTI",#"HUN",#"IC_",#"IDN",#"IRL",#"ISR",#"IMN",#"IND",#"IOT",#"IRQ",#"IRN",#"ISL",#"ITA",#"JEY",#"JAM",#"JOR",
#"JPN",#"KEN",#"KGZ",#"KHM",#"KIR",#"COM",#"KNA",#"PRK",#"KOR",#"KWT",#"CYM",#"KAZ",#"LAO",#"LBN",#"LCA",#"LIE",#"LKA",#"LBR",#"LSO",#"LTU",
#"LUX",#"LVA",#"LBY",#"MAR",#"MCO",#"MDA",#"MNE",#"MAF",#"MDG",#"MHL",#"MKD",#"MLI",#"MMR",#"MNG",#"MAC",#"MNP",#"MTQ",#"MRT",#"MSR",#"MLT",
#"MUS",#"MDV",#"MWI",#"MEX",#"MYS",#"MOZ",#"NAM",#"NCL",#"NER",#"NFK",#"NGA",#"NIC",#"NLD",#"NOR",#"NPL",#"NRU",#"NIU",#"NZL",#"OMN",#"PAN",
#"PER",#"PYF",#"PNG",#"PHL",#"PAK",#"POL",#"SPM",#"PCN",#"PRI",#"PSE",#"PRT",#"PLW",#"PRY",#"QAT",#"REU",#"ROU",#"SRB",#"RUS",#"RWA",#"SAU",
#"SLB",#"SYC",#"SDN",#"SWE",#"SGP",#"SHN",#"SVN",#"SJM",#"SVK",#"SLE",#"SMR",#"SEN",#"SOM",#"SUR",#"SSD",#"STP",#"SLV",#"SXM",#"SYR",#"SWZ",
#"TAA",#"TCA",#"TCD",#"ATF",#"TGO",#"THA",#"TJK",#"TKL",#"TLS",#"TKM",#"TUN",#"TON",#"TUR",#"TTO",#"TUV",#"TWN",#"TZA",#"UKR",#"UGA",#"UMI",
#"USA",#"URY",#"UZB",#"VAT",#"VCT",#"VEN",#"VGB",#"VIR",#"VNM",#"VUT",#"WLF",#"WSM",#"XKV",#"YEM",#"MYT",#"ZAF",#"ZMB",#"ZWE",};
but then you have to find the index of your 2 letter code in apples ISOCountryCodes to look them up accordingly.
Reminder. The ISO 3166-1 alpha-3 explains only that it should have 3 letters, not which letter exactly

Formatting phone number to match

I'm new to android development. I am trying to make an SMS app. Everything works fine already except for phone number formatting. Say for example, I live in the Philippines and I got 2 different SMS from the same number.
First SMS address: +639123456789
Second SMS address: 09123456789
+639123456789 must equal to 09123456789
Or Swiss number +41446681800 must equal to 0446681800
Now how can I format either of these addresses that they will match. String manipulation will work but it's limited for Philippines only. I found this libphonenumber but I have no idea how to use it on my current project. Sorry for being noob. Any help would be much appreciated.

Here you can find an example for libphonenumber lib.
Using this library you can convert those numbers into international format, after you can match the numbers and if you want, you can get the country code too.
internationalFormatMobileNumber = phoneUtil.format(yourNumber, PhoneNumberFormat.INTERNATIONAL);

If you know the country for which you want to do it, you can use Google's open source library https://github.com/googlei18n/libphonenumber . Here is how you can format it:
String numberStr = "8885551234"
PhoneNumberUtil phoneUtil = PhoneNumberUtil.getInstance();
try {
PhoneNumber numberProto = phoneUtil.parse(numberStr, "US");
//Since you know the country you can format it as follows:
System.out.println(phoneUtil.format(numberProto, PhoneNumberFormat.NATIONAL));
} catch (NumberParseException e) {
System.err.println("NumberParseException was thrown: " + e.toString());
}

Android Extract url with specific domain name from String

I am developing a JSON application. I am able to download all of the data but I'm running into an interesting issue. I am trying to grab a string with the domain name:
http://www.prindlepost.org/
When grabbing all of the JSON, I get an extremely large string which I am unable to paste in there. The part I am trying to parse out is:
<p>The road through Belgrade was quiet at 4 A.M. Besides the occasional whir of another car speeding by, my taxi was largely alone on the road. Through the windshield I could see the last traces of apartment blocks pass by as we left the outskirts of the city. Somewhere beyond the limits of my vision, I knew the airport waited, its converging neon runway lines already lighting up the pre-dawn darkness.</p>
<div class="more-link-wrap wpb_button"> Read more</div>
where I am focusing on:
Read more</div>
I'm unfamiliar with extracting strings like this. In the end, I want to be able to save the URL as its own string. For example, the above would be converted into:
String url = "http://www.prindlepost.org/2015/06/this-is-a-self-portrait/";
One thing to note, there are A LOT of URLs to narrowing down by class name may help me a bunch.
My initial guess was:
// <READ MORE>
Pattern p = Pattern.compile("href=\"(.*?)\"");
Matcher m = p.matcher(content);
String urlTemp = null;
if (m.find()) {
urlTemp = m.group(1); // this variable should contain the link URL
}
Log.d("LINK WITHIN TEXT", ""+urlTemp);
// </READ MORE>
Any help is appreciated!

It may be work trying to use something like: http://jsoup.org/
If you check out their example for parsing out links:
String html = "<p>The road through Belgrade was quiet at 4 A.M. Besides the occasional whir of another car speeding by, my taxi was largely alone on the road. Through the windshield I could see the last traces of apartment blocks pass by as we left the outskirts of the city. Somewhere beyond the limits of my vision, I knew the airport waited, its converging neon runway lines already lighting up the pre-dawn darkness.</p>"
+ "<div class=\"more-link-wrap wpb_button\">"
+ "<a href=\"http://www.prindlepost.org/2015/06/this-is-a-self-portrait/\" class=\"more-link\">"
+ "Read more</a></div>";
Document doc = Jsoup.parse(html);
Element link = doc.select("a").first();
String relHref = link.attr("href"); // == "/2015/06/this-is-a-self-portrait/"
String absHref = link.attr("abs:href"); // "http://www.prindlepost.org/2015/06/this-is-a-self-portrait/"

Android geocoder reverse location - reliable way to get the city?

I have searched quite a bit without luck so far.
The Android Geocoder returns the android.location.Address object.
The city, as far as I understood, should be returned in getLocality().
It seems within USA this works well, outside not.
I am writing an international app and struggle to find a solution to find out the city of a geolocation.
Here the output from Czech Republic/Prague :
Address[addressLines=
[0:"Psohlavců 1764/2",
1:"147 00 Prague-Prague 4",
2:"Czech Republic"],
feature=2,
admin=Hlavní město Praha,
sub-admin=Prague,
locality=null,
thoroughfare=Psohlavců,
postalCode=147 00,
countryCode=CZ,
countryName=Czech Republic,
hasLatitude=true,
latitude=50.0276543,
hasLongitude=true,
longitude=14.4183926,
phone=null,
url=null,
extras=null]
locality is null, the city is within sub-admin !
The address itself is ok, so the geocoder server seems to know the city.
Here some ore random EU examples but locality works partly:
Address[addressLines=[0:"Nad lesem 440/34",1:"147 00 Prague-Prague 4",2:"Czech Republic"],feature=34,admin=Hlavní město Praha,sub-admin=Prague,locality=null,thoroughfare=Nad lesem,postalCode=147 00,countryCode=CZ,countryName=Czech Republic,hasLatitude=true,latitude=50.02424,hasLongitude=true,longitude=14.4117568,phone=null,url=null,extras=null]
Address[addressLines=[0:"Hauner Straße 4",1:"84431 Heldenstein",2:"Germany"],feature=4,admin=null,sub-admin=null,locality=Heldenstein,thoroughfare=Hauner Straße,postalCode=84431,countryCode=DE,countryName=Germany,hasLatitude=true,latitude=48.2540274,hasLongitude=true,longitude=12.3413535,phone=null,url=null,extras=null]
Address[addressLines=[0:"Igler Straße",1:"6020 Innsbruck",2:"Austria"],feature=Igler Straße,admin=Tyrol,sub-admin=Innsbruck,locality=Innsbruck,thoroughfare=Igler Straße,postalCode=6020,countryCode=AT,countryName=Austria,hasLatitude=true,latitude=47.2465698,hasLongitude=true,longitude=11.4054237,phone=null,url=null,extras=null]
Address[addressLines=[0:"Durnberg 24",1:"5724 Stuhlfelden",2:"Austria"],feature=24,admin=Salzburg,sub-admin=Zell am See District,locality=null,thoroughfare=Durnberg,postalCode=5724,countryCode=AT,countryName=Austria,hasLatitude=true,latitude=47.3233373,hasLongitude=true,longitude=12.4960482,phone=null,url=null,extras=null]
Address[addressLines=[0:"U Roháčových kasáren 14",1:"100 00 Prague 10",2:"Czech Republic"],feature=14,admin=Hlavní město Praha,sub-admin=Prague,locality=Prague 10,thoroughfare=U Roháčových kasáren,postalCode=null,countryCode=CZ,countryName=Czech Republic,hasLatitude=true,latitude=50.0704092,hasLongitude=true,longitude=14.4673473,phone=null,url=null,extras=null]
Maybe the fault is on me, but to me it seems like depending on the country and area the city will be found in different fields.
However, the address itself mostly seems to be good enough to send a postal letter.
Has someone written a clever function which tries to make more sense out of the Geocoder results ? It's a pity to see that Google has the information stored but does not provide it properly.

Going to close my question, solved it with a workaround.
Using the suggestion from dannyroa
String city="unknown";
if (address.getLocality() != null) city=address.getLocality();
else
if (address.getSubAdminArea() != null) city=address.getSubAdminArea();
This could be further extended by getting the city information out of the second address line.
removing the postal code and taking the remainder, but this information is not unique within a city and could change depending on the district/zone.

Finding location using MCC, MNC, LAC, and Cell ID

I know what the values are for MCC, MNC, LAC, & Cell ID. I want to in C write a program to calculate the position in the form of latitude and longitude values in Linux.
FYI:
MCC - Mobile Country Code
MNC - Mobile Network Code
LAC - Location Area Code; a 16 bit number thereby allowing 65536 location areas within one GSM PLMN
more info is available here on Wikipedia, Location Area Identity
Question:
How can I convert MCC,MNC,LAC,Cell ID into latitude and longitude values in linux?
Why does Cell ID varies every time,when trying to read?

To answer your questions:
You can access public databases from terminal or a browser to convert cell ID to lat/lon. Databases include:
Unwired Labs API
OpenCellID
Cell ID is the ID of the cell phone tower your phone/device is connected to. The moment you move a bit, or the signal of another tower nearby is better than the current one, your phone will switch over to that tower, and your Cell ID now reflects the ID of that tower.

i wrote a python script that can do this for you. You can get a binary from the pyc file.
#!/bin/python
"""
Written by Atissonoun - Credits to MFC & HAC
***You need to initialize the script in order to fix the import and the dependency.
This is only a Beta version of the project***
This python file works as the engine for the project.
imports, coordinates, run......
"""
#Importing modules
import requests
#defining a Api_Keys
Google_API_KEY="Your google API Key goes here"
OpenCell_Api_Key ="Your OpenCellID API Key goes here"
def Google(MMC,MNC,LAC,ID,API_KEY=Google_API_KEY):
url = "https://www.googleapis.com/geolocation/v1/geolocate?key={}".format(API_KEY)
data={
"radioType": "gsm",
"cellTowers":[
{
"cellId": ID,
"locationAreaCode": LAC,
"mobileCountryCode": MMC,
"mobileNetworkCode": MNC
}
]
}
response = requests.post(url, json=data)
if response.status_code == 200 :
lat=response.json()[u'location'][u'lat']
long = response.json()[u'location'][u'lng']
d={'LAT':lat,'LONG':long}
print('Located Cell: {}'.format(ID))
return d
else:
print('Error: {}'.format(response.status_code))
return None
def Opencell(MMC,MNC,LAC,ID,API_KEY=OpenCell_Api_Key):
url = "https://us1.unwiredlabs.com/v2/process.php"
data = {
"token": API_KEY,
"radio": "gsm",
"mcc": MMC,
"mnc": MNC,
"cells": [{
"lac": LAC,
"cid": ID
}]
}
response = requests.post(url, json=data)
if response.status_code == 200:
if response.json()[u'status']== 'error':
print('Error: {}'.format(response.json()[u'message']))
return None
else:
lat = response.json()[u'lat']
long = response.json()[u'lon']
d = {'LAT': lat, 'LONG': long}
print('Located Cell: {}'.format(ID))
return d
else:
print('Error: {}'.format(response.status_code))
return None

You either need a database
OpenCellID (they provide APIs for new cell measurement, get the position of a specific cell, etc)
or
use the "secret" API:
"http://www.google.com/glm/mmap" is a non-public API to convert cellLocation to latitude and longitude.
Many ways to do that are given in the answwers for this SO question.

You can use this simple but efficient web site that doesn't need any log in:
http://www.cell2gps.com/
while you can access to operator info like MCC and MNC to the wiki page:
http://en.wikipedia.org/wiki/Mobile_country_code#I
The result is the location GPS through Google Maps,