Possible way to detect sim card detection in ios?
Solution 1
By the below code you can get the sim card details like carriername,mobilecountrycode,isocountrycode,mobilenetworkcode.In the ios 6 all are retained.So if your sim card is removed also it will retain the old details.So there this idea wont be useful but in ios 7 only carriername is retained and remaining are changed so the below code can be used
CTTelephonyNetworkInfo* info = [[CTTelephonyNetworkInfo alloc] init];
CTCarrier* carrier = info.subscriberCellularProvider;
NSString *mobileCountryCode = carrier.mobileCountryCode;
NSString *carrierName = carrier.carrierName;
NSString *isoCountryCode = carrier.isoCountryCode;
NSString *mobileNetworkCode = carrier.mobileNetworkCode
// Try this to track CTCarrier changes
info.subscriberCellularProviderDidUpdateNotifier = ^(CTCarrier* inCTCarrier) {
dispatch_async(dispatch_get_main_queue(), ^{
NSLog(@"User did change SIM");
});
};
Solution 2
You can check it by CTCarrier class.
BOOL isSimCardAvailable = YES;
CTTelephonyNetworkInfo* info = [[CTTelephonyNetworkInfo alloc] init];
CTCarrier* carrier = info.subscriberCellularProvider;
if(carrier.mobileNetworkCode == nil || [carrier.mobileNetworkCode isEqualToString:@""])
{
isSimCardAvailable = NO;
}
You need to add CoreTelephony framework for using CTTelephonyNetworkInfo and CTCarrier.
Solution 3
Implemented in Swift as a read-only computed property:
import CoreTelephony
var availableSIM: Bool {
return CTTelephonyNetworkInfo().subscriberCellularProvider?.mobileNetworkCode != nil
}
Solution 4
Complementing to Anneq and Felipe answers:
Swift 2.3:
import CoreTelephony
func isSimAvailable() -> Bool {
let info = CTTelephonyNetworkInfo()
let carr = info.subscriberCellularProvider
guard let carrier = carr else {
return false
}
guard let carrierCode = carrier.mobileNetworkCode else {
return false
}
guard carrierCode != "" else {
return false
}
return true
}
Solution 5
Complementing the Anneq Anwar answer, here the swift version:
import CoreTelephony
func isSimAvailable() -> Bool {
var isSimCardAvailable = true
var info = CTTelephonyNetworkInfo()
var carrier = info.subscriberCellularProvider
if carrier != nil && carrier.mobileNetworkCode == nil || carrier.mobileNetworkCode.isEqual("") {
isSimCardAvailable = false
}
return isSimCardAvailable
}
fix: The carrier can be nil in some devices
vinoth kannan
Updated on June 17, 2022Comments
-
vinoth kannan almost 2 years
I have a iphone app that has the capability to send messages. I want to alert user when sim card is not available in iphone. So i tried below three function to check sim card availabilty
Class messageClass = (NSClassFromString(@"MFMessageComposeViewController")); if([messageClass canSendText]){ // Sim available NSLog(@"Sim available"); } else{ //Sim not available NSLog(@"Sim not available"); } if([MFMessageComposeViewController canSendText]){ // Sim available NSLog(@"Sim available"); } else{ //Sim not available NSLog(@"Sim not available"); } if([[UIDevice currentDevice].model isEqualToString:@"iPhone"]) { if ([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:@"tel:123456"]]) { NSLog(@"Sim available"); } else { NSLog(@"Sim not available"); } }
I have checked my iphone without sim, it always return @"Sim available". But when i open default "Messages" app and try to send sms it says alert "No SIM Card Installed"... How this message app can detect sim card availabilty?