获取iPhone/iPad设备网络类型（2G,3G,4G,5G,WIFI）

目前我们获取手机网络类型主要还是用的 AFNetwork

但是AFNetwork有个问题就是类型不够充分，只能四种类型

typedef NS_ENUM(NSInteger, AFNetworkReachabilityStatus) {AFNetworkReachabilityStatusUnknown          = -1,AFNetworkReachabilityStatusNotReachable     = 0,AFNetworkReachabilityStatusReachableViaWWAN = 1,AFNetworkReachabilityStatusReachableViaWiFi = 2,
};

AFNetworkReachabilityStatusUnknown 未知网络

AFNetworkReachabilityStatusNotReachable 无网络

AFNetworkReachabilityStatusReachableViaWWAN 蜂窝移动网络

AFNetworkReachabilityStatusReachableViaWiFi WIFI

具体获取代码如下

/**监测网络类型*/
-(void)configReachabilityStatusByAFNetwork {AFNetworkReachabilityManager *manager = [AFNetworkReachabilityManager sharedManager];[manager setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {[MyAppConfigModel sharedSingleton].netWorkReachabilityStatus = status;switch (status) {case AFNetworkReachabilityStatusUnknown:NSLog(@"⚠️⚠️⚠️⚠️⚠️⚠️⚠️当前网络：未知");break;case AFNetworkReachabilityStatusNotReachable:NSLog(@"⚠️⚠️⚠️⚠️⚠️⚠️⚠️当前网络：网络无连接\n请检查网络");break;case AFNetworkReachabilityStatusReachableViaWWAN:NSLog(@"⚠️⚠️⚠️⚠️⚠️⚠️⚠️当前网络：3G|4G");break;case AFNetworkReachabilityStatusReachableViaWiFi:NSLog(@"⚠️⚠️⚠️⚠️⚠️⚠️⚠️当前网络：WiFi");break;default:break;}}];
}

那么如何获取蜂窝移动网络的具体类型呢？
这里就需要用到

#import <CoreTelephony/CoreTelephonyDefines.h>
#import <CoreTelephony/CTCarrier.h>
#import <CoreTelephony/CTTelephonyNetworkInfo.h>

具体代码如下


+ (NSInteger)getDeviceNetWorkingStatus{NSString *state = [[NSString alloc] init];NSInteger stateType = 0;AFNetworkReachabilityStatus netWorkReachabilityStatus =  [MyAppConfigModel sharedSingleton].netWorkReachabilityStatus;switch (netWorkReachabilityStatus) {case AFNetworkReachabilityStatusUnknown:state = @"无网络";stateType = 5;break;case AFNetworkReachabilityStatusNotReachable:state = @"无网络";stateType = 5;break;case AFNetworkReachabilityStatusReachableViaWWAN:{NSArray *typeStrings2G = @[CTRadioAccessTechnologyEdge,CTRadioAccessTechnologyGPRS,CTRadioAccessTechnologyCDMA1x];NSArray *typeStrings3G = @[CTRadioAccessTechnologyHSDPA,CTRadioAccessTechnologyWCDMA,CTRadioAccessTechnologyHSUPA,CTRadioAccessTechnologyCDMAEVDORev0,CTRadioAccessTechnologyCDMAEVDORevA,CTRadioAccessTechnologyCDMAEVDORevB,CTRadioAccessTechnologyeHRPD];NSArray *typeStrings4G = @[CTRadioAccessTechnologyLTE];CTTelephonyNetworkInfo *teleInfo= [[CTTelephonyNetworkInfo alloc] init];NSString *accessString = teleInfo.currentRadioAccessTechnology;if ([typeStrings4G containsObject:accessString]) {state = @"4G";stateType = 2;} else if ([typeStrings3G containsObject:accessString]) {state = @"3G";stateType = 3;} else if ([typeStrings2G containsObject:accessString]) {state = @"2G";stateType = 4;} else {state = @"无网络";stateType = 5;}}break;case AFNetworkReachabilityStatusReachableViaWiFi:state = @"WIFI";stateType = 1;break;default:state = @"无网络";stateType = 5;break;}NSLog(@"当前网络网络状态 %@",state);return stateType;
}

昨天在判断网络的发现发现xcode12竟然没有5G相关的key，今天升级到Xcode12.1发现多了CTRadioAccessTechnologyNRNSA和CTRadioAccessTechnologyNR。

NR是New Radio的缩写，新无线(5G)的意思，
NRNSA表示5G NR的非独立组网（NSA）模式
具体解释可看5G新无线

网络判断使用了Reachability

方式一：通过CoreTelephony获取网络状态

引入头文件

#import "Reachability.h"
#import <CoreTelephony/CTCarrier.h>
#import <CoreTelephony/CTTelephonyNetworkInfo.h>

开始网络判断：

+ (NSString *)networkStatus{Reachability *reachability   = [Reachability reachabilityWithHostName:@"www.apple.com"];NetworkStatus internetStatus = [reachability currentReachabilityStatus];NSString *net = @"WIFI";switch (internetStatus) {case ReachableViaWiFi:net = @"WIFI";break;case ReachableViaWWAN:net = [self getNetType];   //判断具体类型break;case NotReachable:net = @"当前无网路连接";default:break;}NSLog(@"net is %@", net);return net;
}+ (NSString *)getNetType
{CTTelephonyNetworkInfo *info = [[CTTelephonyNetworkInfo alloc] init];/// 注意：没有SIM卡，值为空NSString *currentStatus;NSString *currentNet = @"5G";if (@available(iOS 12.1, *)) {if (info && [info respondsToSelector:@selector(serviceCurrentRadioAccessTechnology)]) {NSDictionary *radioDic = [info serviceCurrentRadioAccessTechnology];if (radioDic.allKeys.count) {currentStatus = [radioDic objectForKey:radioDic.allKeys[0]];}}}else{currentStatus = info.currentRadioAccessTechnology;}if ([currentStatus isEqualToString:CTRadioAccessTechnologyGPRS]) {currentNet = @"GPRS";}else if ([currentStatus isEqualToString:CTRadioAccessTechnologyEdge]) {currentNet = @"2.75G EDGE";}else if ([currentStatus isEqualToString:CTRadioAccessTechnologyWCDMA]){currentNet = @"3G";}else if ([currentStatus isEqualToString:CTRadioAccessTechnologyHSDPA]){currentNet = @"3.5G HSDPA";}else if ([currentStatus isEqualToString:CTRadioAccessTechnologyHSUPA]){currentNet = @"3.5G HSUPA";}else if ([currentStatus isEqualToString:CTRadioAccessTechnologyCDMA1x]){currentNet = @"2G";}else if ([currentStatus isEqualToString:CTRadioAccessTechnologyCDMAEVDORev0]){currentNet = @"3G";}else if ([currentStatus isEqualToString:CTRadioAccessTechnologyCDMAEVDORevA]){currentNet = @"3G";}else if ([currentStatus isEqualToString:CTRadioAccessTechnologyCDMAEVDORevB]){currentNet = @"3G";}else if ([currentStatus isEqualToString:CTRadioAccessTechnologyeHRPD]){currentNet = @"HRPD";}else if ([currentStatus isEqualToString:CTRadioAccessTechnologyLTE]){currentNet = @"4G";}else if (@available(iOS 14.1, *)) {if ([currentStatus isEqualToString:CTRadioAccessTechnologyNRNSA]){currentNet = @"5G NSA";}else if ([currentStatus isEqualToString:CTRadioAccessTechnologyNR]){currentNet = @"5G";}}return currentNet;
}

鉴于评论区反馈iOS14.0.1对5G判断产生的崩溃，这里5G的判断从14.1开始判断(独白：但是官方写着就是14.0，真是个左右为难的问题~)

方式二：通过状态栏获取网络状态(不推荐)

因为私有属性在之后的版本会被取消，不推荐这种方式

- (NSString *)getNetStatusByStatusBar{@try {NSArray *children;UIApplication *app = [UIApplication sharedApplication];NSString *state;// 全屏if ([[app valueForKeyPath:@"_statusBar"] isKindOfClass:NSClassFromString(@"UIStatusBar_Modern")]) {children = [[[[app valueForKeyPath:@"_statusBar"] valueForKeyPath:@"_statusBar"] valueForKeyPath:@"foregroundView"] subviews];for (UIView *view in children) {for (id child in view.subviews) {//wifiif ([child isKindOfClass:NSClassFromString(@"_UIStatusBarWifiSignalView")]) {state = @"wifi";}//2G 3G 4Gif ([child isKindOfClass:NSClassFromString(@"_UIStatusBarStringView")]) {if ([[child valueForKey:@"_originalText"] containsString:@"G"]) {state = [child valueForKey:@"_originalText"];}}}}}else {children = [[[app valueForKeyPath:@"_statusBar"] valueForKeyPath:@"foregroundView"] subviews];for (id child in children) {if ([child isKindOfClass:NSClassFromString(@"UIStatusBarDataNetworkItemView")]) {//获取到状态栏switch ([[child valueForKeyPath:@"dataNetworkType"] intValue]) {case 0:state = @"无网络";//无网模式break;case 1:state = @"2G";break;case 2:state = @"3G";break;case 3:state = @"4G";break;case 5:state = @"wifi";break;default:break;}}}}return state;}@catch (NSException * __unused exception) {}
}

以下是项目中获取设备网络类型的代码：

//设备网络类型：Unknown=0; Wifi=1; 2G=2; 3G=3; 4G=4; 5G=5

-(NSInteger)connType{

NSString *state = [[NSString alloc] init];

NSInteger stateType = 0;

AFNetworkReachabilityStatus netWorkReachabilityStatus = [AFNetworkReachabilityManager sharedManager].networkReachabilityStatus;

switch (netWorkReachabilityStatus) {

case AFNetworkReachabilityStatusUnknown:

state = @"无网络";

stateType = 0;

break;

case AFNetworkReachabilityStatusNotReachable:

state = @"无网络";

stateType = 0;

break;

case AFNetworkReachabilityStatusReachableViaWWAN:

{

NSArray *typeStrings2G = @[CTRadioAccessTechnologyEdge,

CTRadioAccessTechnologyGPRS,

CTRadioAccessTechnologyCDMA1x];

NSArray *typeStrings3G = @[CTRadioAccessTechnologyHSDPA,

CTRadioAccessTechnologyWCDMA,

CTRadioAccessTechnologyHSUPA,

CTRadioAccessTechnologyCDMAEVDORev0,

CTRadioAccessTechnologyCDMAEVDORevA,

CTRadioAccessTechnologyCDMAEVDORevB,

CTRadioAccessTechnologyeHRPD];

NSArray *typeStrings4G = @[CTRadioAccessTechnologyLTE];

NSArray *typeStrings5G;

if (@available(iOS 14.1, *)) {

typeStrings5G = @[CTRadioAccessTechnologyNRNSA,CTRadioAccessTechnologyNR];

}

CTTelephonyNetworkInfo *teleInfo= [[CTTelephonyNetworkInfo alloc] init];

NSString *accessString = teleInfo.currentRadioAccessTechnology;

if (@available(iOS 14.1, *)) {

if ([typeStrings5G containsObject:accessString]) {

state = @"5G";

stateType = 5;

}

if ([typeStrings4G containsObject:accessString]) {

state = @"4G";

stateType = 4;

} else if ([typeStrings3G containsObject:accessString]) {

state = @"3G";

stateType = 3;

} else if ([typeStrings2G containsObject:accessString]) {

state = @"2G";

stateType = 2;

} else {

state = @"无网络";

stateType = 0;

}

break;

case AFNetworkReachabilityStatusReachableViaWiFi:

state = @"WIFI";

stateType = 1;

break;

default:

state = @"无网络";

stateType = 0;

break;

}

NSLog(@"当前网络网络状态 %@",state);

return stateType;

}

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获取iPhone/iPad设备网络类型（2G,3G,4G,5G,WIFI）

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