iOS获取设备的网络状态(已适配iOS13,iOS14无变化)

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iOS获取设备的网络状态(已适配iOS13,iOS14无变化)

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iOS获取设备的网络状态(已适配iOS13,iOS14无变化)

前言

小编最近在项目中遇到了一个问题,除刘海屏以外的iOS设备可以正常的搜索到硬件设备,但是刘海屏就不行。因此,小编花了一点时间研究了一下iOS设备获取当前设备的网络状态。

实现

因为iOS的系统是封闭的,所以是没有直接的APi去获取当前的网络状态。但是道高一尺,魔高一尺。开发者总会有办法获取自己想要的东西。

1.网络状态获取

获取当前的网络类型

获取当前的网络类型是通过获取状态栏,然后遍历状态栏的视图完成的。
先导入头文件,如下:

#import "AppDelegate.h"

实现方法如下:

+ (NSString *)getNetworkType
{
    UIApplication *app = [UIApplication sharedApplication];
    id statusBar = nil;
// 判断是否是iOS 13
    NSString *network = @"";
    if (@available(iOS 13.0, *)) {
        UIStatusBarManager *statusBarManager = [UIApplication sharedApplication].keyWindow.windowScene.statusBarManager;
        
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wundeclared-selector"
        if ([statusBarManager respondsToSelector:@selector(createLocalStatusBar)]) {
            UIView *localStatusBar = [statusBarManager performSelector:@selector(createLocalStatusBar)];
            if ([localStatusBar respondsToSelector:@selector(statusBar)]) {
                statusBar = [localStatusBar performSelector:@selector(statusBar)];
            }
        }
#pragma clang diagnostic pop
        
        if (statusBar) {
// UIStatusBarDataCellularEntry
            id currentData = [[statusBar valueForKeyPath:@"_statusBar"] valueForKeyPath:@"currentData"];
            id _wifiEntry = [currentData valueForKeyPath:@"wifiEntry"];
            id _cellularEntry = [currentData valueForKeyPath:@"cellularEntry"];
            if (_wifiEntry && [[_wifiEntry valueForKeyPath:@"isEnabled"] boolValue]) {
// If wifiEntry is enabled, is WiFi.
                network = @"WIFI";
            } else if (_cellularEntry && [[_cellularEntry valueForKeyPath:@"isEnabled"] boolValue]) {
                NSNumber *type = [_cellularEntry valueForKeyPath:@"type"];
                if (type) {
                    switch (type.integerValue) {
                        case 0:
// 无sim卡
                            network = @"NONE";
                            break;
                        case 1:
                            network = @"1G";
                            break;
                        case 4:
                            network = @"3G";
                            break;
                        case 5:
                            network = @"4G";
                            break;
                        default:
// 默认WWAN类型
                            network = @"WWAN";
                            break;
                            }
                        }
                    }
                }
    }else {
        statusBar = [app valueForKeyPath:@"statusBar"];
        
        if ([[[self alloc]init]isLiuHaiScreen]) {
// 刘海屏
                id statusBarView = [statusBar valueForKeyPath:@"statusBar"];
                UIView *foregroundView = [statusBarView valueForKeyPath:@"foregroundView"];
                NSArray *subviews = [[foregroundView subviews][2] subviews];
                
                if (subviews.count == 0) {
// iOS 12
                    id currentData = [statusBarView valueForKeyPath:@"currentData"];
                    id wifiEntry = [currentData valueForKey:@"wifiEntry"];
                    if ([[wifiEntry valueForKey:@"_enabled"] boolValue]) {
                        network = @"WIFI";
                    }else {
// 卡1:
                        id cellularEntry = [currentData valueForKey:@"cellularEntry"];
// 卡2:
                        id secondaryCellularEntry = [currentData valueForKey:@"secondaryCellularEntry"];

                        if (([[cellularEntry valueForKey:@"_enabled"] boolValue]|[[secondaryCellularEntry valueForKey:@"_enabled"] boolValue]) == NO) {
// 无卡情况
                            network = @"NONE";
                        }else {
// 判断卡1还是卡2
                            BOOL isCardOne = [[cellularEntry valueForKey:@"_enabled"] boolValue];
                            int networkType = isCardOne ? [[cellularEntry valueForKey:@"type"] intValue] : [[secondaryCellularEntry valueForKey:@"type"] intValue];
                            switch (networkType) {
                                    case 0://无服务
                                    network = [NSString stringWithFormat:@"%@-%@", isCardOne ? @"Card 1" : @"Card 2", @"NONE"];
                                    break;
                                    case 3:
                                    network = [NSString stringWithFormat:@"%@-%@", isCardOne ? @"Card 1" : @"Card 2", @"2G/E"];
                                    break;
                                    case 4:
                                    network = [NSString stringWithFormat:@"%@-%@", isCardOne ? @"Card 1" : @"Card 2", @"3G"];
                                    break;
                                    case 5:
                                    network = [NSString stringWithFormat:@"%@-%@", isCardOne ? @"Card 1" : @"Card 2", @"4G"];
                                    break;
                                default:
                                    break;
                            }
                            
                        }
                    }
                
                }else {
                    
                    for (id subview in subviews) {
                        if ([subview isKindOfClass:NSClassFromString(@"_UIStatusBarWifiSignalView")]) {
                            network = @"WIFI";
                        }else if ([subview isKindOfClass:NSClassFromString(@"_UIStatusBarStringView")]) {
                            network = [subview valueForKeyPath:@"originalText"];
                        }
                    }
                }
                
            }else {
// 非刘海屏
                UIView *foregroundView = [statusBar valueForKeyPath:@"foregroundView"];
                NSArray *subviews = [foregroundView subviews];
                
                for (id subview in subviews) {
                    if ([subview isKindOfClass:NSClassFromString(@"UIStatusBarDataNetworkItemView")]) {
                        int networkType = [[subview valueForKeyPath:@"dataNetworkType"] intValue];
                        switch (networkType) {
                            case 0:
                                network = @"NONE";
                                break;
                            case 1:
                                network = @"2G";
                                break;
                            case 2:
                                network = @"3G";
                                break;
                            case 3:
                                network = @"4G";
                                break;
                            case 5:
                                network = @"WIFI";
                                break;
                            default:
                                break;
                        }
                    }
                }
            }
    }

    if ([network isEqualToString:@""]) {
        network = @"NO DISPLAY";
    }
    return network;
}
获取当前的Wifi信息

获取当前的Wifi信息需要借助系统的SystemConfiguration这个库。
先导入头文件,如下:

#import <SystemConfiguration/CaptiveNetwork.h>

实现方法如下:

#pragma mark 获取Wifi信息
+ (id)fetchSSIDInfo
{
    NSArray *ifs = (__bridge_transfer id)CNCopySupportedInterfaces();
    id info = nil;
    for (NSString *ifnam in ifs) {
        info = (__bridge_transfer id)CNCopyCurrentNetworkInfo((__bridge CFStringRef)ifnam);
        
        if (info && [info count]) {
            break;
        }
    }
    return info;
}
#pragma mark 获取WIFI名字
+ (NSString *)getWifiSSID
{
    return (NSString *)[self fetchSSIDInfo][@"SSID"];
}
#pragma mark 获取WIFI的MAC地址
+ (NSString *)getWifiBSSID
{
    return (NSString *)[self fetchSSIDInfo][@"BSSID"];
}
获取当前的Wifi信号强度

获取信号强度与获取网络状态有点类似,通过遍历状态栏,从而获取WIFI图标的信号强度。在获取前需注意当前状态是否为WIFI。如下:

+ (int)getWifiSignalStrength{
    
    int signalStrength = 0;
// 判断类型是否为WIFI
    if ([[self getNetworkType]isEqualToString:@"WIFI"]) {
// 判断是否为iOS 13
        if (@available(iOS 13.0, *)) {
            UIStatusBarManager *statusBarManager = [UIApplication sharedApplication].keyWindow.windowScene.statusBarManager;
             
            id statusBar = nil;
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wundeclared-selector"
            if ([statusBarManager respondsToSelector:@selector(createLocalStatusBar)]) {
                UIView *localStatusBar = [statusBarManager performSelector:@selector(createLocalStatusBar)];
                if ([localStatusBar respondsToSelector:@selector(statusBar)]) {
                    statusBar = [localStatusBar performSelector:@selector(statusBar)];
                }
            }
#pragma clang diagnostic pop
            if (statusBar) {
                id currentData = [[statusBar valueForKeyPath:@"_statusBar"] valueForKeyPath:@"currentData"];
                id wifiEntry = [currentData valueForKeyPath:@"wifiEntry"];
                if ([wifiEntry isKindOfClass:NSClassFromString(@"_UIStatusBarDataIntegerEntry")]) {
// 层级:_UIStatusBarDataNetworkEntry、_UIStatusBarDataIntegerEntry、_UIStatusBarDataEntry
                    
                    signalStrength = [[wifiEntry valueForKey:@"displayValue"] intValue];
                }
            }
        }else {
            UIApplication *app = [UIApplication sharedApplication];
            id statusBar = [app valueForKey:@"statusBar"];
            if ([[[self alloc]init]isLiuHaiScreen]) {
// 刘海屏
                id statusBarView = [statusBar valueForKeyPath:@"statusBar"];
                UIView *foregroundView = [statusBarView valueForKeyPath:@"foregroundView"];
                NSArray *subviews = [[foregroundView subviews][2] subviews];
                       
                if (subviews.count == 0) {
// iOS 12
                    id currentData = [statusBarView valueForKeyPath:@"currentData"];
                    id wifiEntry = [currentData valueForKey:@"wifiEntry"];
                    signalStrength = [[wifiEntry valueForKey:@"displayValue"] intValue];
// dBm
// int rawValue = [[wifiEntry valueForKey:@"rawValue"] intValue];
                }else {
                    for (id subview in subviews) {
                        if ([subview isKindOfClass:NSClassFromString(@"_UIStatusBarWifiSignalView")]) {
                            signalStrength = [[subview valueForKey:@"_numberOfActiveBars"] intValue];
                        }
                    }
                }
            }else {
// 非刘海屏
                UIView *foregroundView = [statusBar valueForKey:@"foregroundView"];
                     
                NSArray *subviews = [foregroundView subviews];
                NSString *dataNetworkItemView = nil;
                       
                for (id subview in subviews) {
                    if([subview isKindOfClass:[NSClassFromString(@"UIStatusBarDataNetworkItemView") class]]) {
                        dataNetworkItemView = subview;
                        break;
                    }
                }
                       
                signalStrength = [[dataNetworkItemView valueForKey:@"_wifiStrengthBars"] intValue];
                        
                return signalStrength;
            }
        }
    }
    return signalStrength;
}

2.Reachability的使用

下载开源类Reachability,然后根据文档使用即可(该类把移动网络统称为WWAN):

+ (NSString *)getNetworkTypeByReachability
{
    NSString *network = @"";
    switch ([[Reachability reachabilityForInternetConnection]currentReachabilityStatus]) {
        case NotReachable:
            network = @"NONE";
            break;
        case ReachableViaWiFi:
            network = @"WIFI";
            break;
        case ReachableViaWWAN:
            network = @"WWAN";
            break;
        default:
            break;
    }
    if ([network isEqualToString:@""]) {
        network = @"NO DISPLAY";
    }
    return network;
}

上次发布了这篇文章之后,有人问我,怎么才能获取设备的IP地址呢?在这里,小编附上获取iP地址的方法。
先导入头文件,如下:

#import <ifaddrs.h>
#import <arpa/inet.h>

实现方法,如下:

#pragma mark 获取设备IP地址
+ (NSString *)getIPAddress
{
    NSString *address = @"error";
    struct ifaddrs *interfaces = NULL;
    struct ifaddrs *temp_addr = NULL;
    int success = 0;
    // 检索当前接口,在成功时,返回0
    success = getifaddrs(&interfaces);
    if (success == 0) {
        // 循环链表的接口
        temp_addr = interfaces;
        while(temp_addr != NULL) {
// 开热点时本机的IP地址
                if ([[NSString stringWithUTF8String:temp_addr->ifa_name] isEqualToString:@"bridge100"]
                    ) {
                    address = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_addr)->sin_addr)];
                }
            if(temp_addr->ifa_addr->sa_family == AF_INET) {
                // 检查接口是否en0 wifi连接在iPhone上
                if([[NSString stringWithUTF8String:temp_addr->ifa_name] isEqualToString:@"en0"]) {
                    // 得到NSString从C字符串
                    address = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_addr)->sin_addr)];
                }
            }
            temp_addr = temp_addr->ifa_next;
        }
    }
    // 释放内存
    freeifaddrs(interfaces);
    return address;
}

3.iOS 12下的补充

在iOS 12下xcode需要打开权限才可以正常操作,如下:

4.iOS 13下的补充

在iOS 13下xcode需要打开权限才可以正常操作,如下:

并且,在iOS 13下,若要获取SSID和BSSID,需要添加定位权限

#import <CoreLocation/CoreLocation.h>

@interface ViewController ()
@property (strong, nonatomic) CLLocationManager *locationManager;
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    if (@available(iOS 13.0, *)) {
// 如果是iOS13 未开启地理位置权限 需要提示一下
           if ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusNotDetermined) {
               self.locationManager = [[CLLocationManager alloc] init];
               [self.locationManager requestWhenInUseAuthorization];
           }
       }
}

到这里为止,这篇文章就结束了。在这里提醒一下各位看官,横屏时请注意不要把状态栏去掉。有说明不足的地方欢迎评论,这里附上Demo下载地址:Demo。最后,希望这篇文章对各位看官们有所帮助。对支持小编的看官们表示感谢。

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