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UIApplication+PhoneCapability. Detects whether the device can actually place a phone call.
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// | |
// UIApplication+PhoneCapability.h | |
// | |
// Copyright (c) 2014 Maciej Swic | |
// Permission is hereby granted, free of charge, to any person obtaining a copy | |
// of this software and associated documentation files (the "Software"), to deal | |
// in the Software without restriction, including without limitation the rights | |
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
// copies of the Software, and to permit persons to whom the Software is | |
// furnished to do so, subject to the following conditions: | |
// The above copyright notice and this permission notice shall be included in | |
// all copies or substantial portions of the Software. | |
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
// THE SOFTWARE. | |
#import <UIKit/UIKit.h> | |
@interface UIApplication (PhoneCapability) | |
- (BOOL)canPlacePhoneCall; | |
@end |
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// | |
// UIApplication+PhoneCapability.m | |
// | |
#import "UIApplication+PhoneCapability.h" | |
#import <CoreTelephony/CTTelephonyNetworkInfo.h> | |
#import <CoreTelephony/CTCarrier.h> | |
@implementation UIApplication (PhoneCapability) | |
- (BOOL)canPlacePhoneCall { | |
if ([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:@"tel://"]]) { | |
static CTTelephonyNetworkInfo *telephonyNetworkInfo; | |
static dispatch_once_t onceToken; | |
dispatch_once(&onceToken, ^{ | |
telephonyNetworkInfo = [CTTelephonyNetworkInfo new]; | |
}); | |
CTCarrier *carrier = [telephonyNetworkInfo subscriberCellularProvider]; | |
NSString *mobileNetworkCode = [carrier mobileNetworkCode]; | |
if (([mobileNetworkCode length] == 0) || ([mobileNetworkCode isEqualToString:@"65535"])) { | |
return NO; | |
} else { | |
return YES; | |
} | |
} | |
return NO; | |
} | |
@end |
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