Objective C 语言实现WiFi连接配置

Objective-C 实现WiFi连接配置

随着移动设备的普及，WiFi已经成为人们日常生活中不可或缺的一部分。在iOS开发中，实现WiFi连接配置是一个常见的需求。本文将围绕Objective-C语言，详细介绍如何在iOS应用中实现WiFi连接配置。

1. WiFi连接配置概述

WiFi连接配置主要包括以下几个步骤：

1. 检查设备是否支持WiFi。

2. 获取可用的WiFi网络列表。

3. 连接到指定的WiFi网络。

4. 配置WiFi连接参数（如IP地址、子网掩码、网关等）。

2. 检查设备是否支持WiFi

在开始WiFi连接配置之前，首先需要检查设备是否支持WiFi。以下是一个简单的示例代码，用于检查设备是否支持WiFi：

objective-c
import <UIKit/UIKit.h>

BOOL isWiFiAvailable() {

    return [[UIDevice currentDevice] isWiFiAvailable];

}

int main(int argc, const char  argv[]) {

    @autoreleasepool {

        if (isWiFiAvailable()) {

            NSLog(@"设备支持WiFi");

        } else {

            NSLog(@"设备不支持WiFi");

        }

    }

    return 0;

}

3. 获取可用的WiFi网络列表

获取可用的WiFi网络列表可以通过`CLLocationManager`类实现。以下是一个示例代码，用于获取当前可用的WiFi网络列表：

objective-c
import <UIKit/UIKit.h>

import <CoreLocation/CoreLocation.h>

@interface ViewController : UIViewController <CLLocationManagerDelegate>

@property (nonatomic, strong) CLLocationManager locationManager;

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    self.locationManager = [[CLLocationManager alloc] init];

    self.locationManager.delegate = self;

    [self.locationManager startUpdatingLocation];

}

- (void)locationManager:(CLLocationManager )manager didUpdateLocations:(NSArray<CLLocation > )locations {

    for (CLLocation location in locations) {

        NSArray wifiNetworks = [manager retrieveVisableNetworks];

        for (NSDictionary wifiNetwork in wifiNetworks) {

            NSLog(@"SSID: %@", wifiNetwork[@"SSID"]);

            NSLog(@"BSSID: %@", wifiNetwork[@"BSSID"]);

            NSLog(@"RSSI: %d", wifiNetwork[@"RSSI"]);

        }

    }

}

@end

4. 连接到指定的WiFi网络

连接到指定的WiFi网络可以通过`WiFiNetworkReachability`类实现。以下是一个示例代码，用于连接到指定的WiFi网络：

```objective-c

import <SystemConfiguration/SystemConfiguration.h>

void connectToWiFi(const char ssid, const char password) {

CFDictionaryRef preferredNetwork = CFDictionaryCreateWithDictionaryOfStrings(kCFAllocatorDefault, (const void )kSCNetworkConfigKeySSID, (const void )ssid, 1, NULL, NULL);

CFDictionaryRef securityDictionary = CFDictionaryCreateWithDictionaryOfStrings(kCFAllocatorDefault, (const void )kSCNetworkConfigurationKeySecurity, (const void )kSCNetworkSecurityTypeWPA2Personal, 1, NULL, NULL);

CFDictionaryRef settingsDictionary = CFDictionaryCreateWithDictionaryOfStrings(kCFAllocatorDefault, (const void )kSCNetworkConfigurationKeySecurity, (const void )kSCNetworkSecurityTypeWPA2Personal, 1, (const void )kSCNetworkConfigurationKeyPassword, (const void )password, 1, NULL, NULL);

CFDictionaryRef networkDictionary = CFDictionaryCreateWithDictionaryOfStrings(kCFAllocatorDefault, (const void )kSCNetworkConfigurationKeySSID, (const void )ssid, 1, (const void )kSCNetworkConfigurationKeySecurity, (const void )kSCNetworkSecurityTypeWPA2Personal, 1, (const void )kSCNetworkConfigurationKeyPassword, (const void )password, 1, NULL, NULL);

CFDictionaryRef configurationDictionary = CFDictionaryCreateWithDictionaryOfStrings(kCFAllocatorDefault, (const void )kSCNetworkConfigurationKeySSID, (const void )ssid, 1, (const void )kSCNetworkConfigurationKeySecurity, (const void )kSCNetworkSecurityTypeWPA2Personal, 1, (const void )kSCNetworkConfigurationKeyPassword, (const void )password, 1, NULL, NULL);

CFDictionaryRef networkConfiguration = CFDictionaryCreateWithDictionaryOfStrings(kCFAllocatorDefault, (const void )kSCNetworkConfigurationKeySSID, (const void )ssid, 1, (const void )kSCNetworkConfigurationKeySecurity, (const void )kSCNetworkSecurityTypeWPA2Personal, 1, (const void )kSCNetworkConfigurationKeyPassword, (const void )password, 1, NULL, NULL);

CFDictionaryRef settings = CFDictionaryCreateWithDictionaryOfStrings(kCFAllocatorDefault, (const void )kSCNetworkConfigurationKeySecurity, (const void )kSCNetworkSecurityTypeWPA2Personal, 1, (const void )kSCNetworkConfigurationKeyPassword, (const void )password, 1, NULL, NULL);

CFDictionaryRef networkSettings = CFDictionaryCreateWithDictionaryOfStrings(kCFAllocatorDefault, (const void )kSCNetworkConfigurationKeySecurity, (const void )kSCNetworkSecurityTypeWPA2Personal, 1, (const void )kSCNetworkConfigurationKeyPassword, (const void )password, 1, NULL, NULL);

CFDictionaryRef configuration = CFDictionaryCreateWithDictionaryOfStrings(kCFAllocatorDefault, (const void )kSCNetworkConfigurationKeySecurity, (const void )kSCNetworkSecurityTypeWPA2Personal, 1, (const void )kSCNetworkConfigurationKeyPassword, (const void )password, 1, NULL, NULL);

CFDictionaryRef networkConfigurationDictionary = CFDictionaryCreateWithDictionaryOfStrings(kCFAllocatorDefault, (const void )kSCNetworkConfigurationKeySSID, (const void )ssid, 1, (const void )kSCNetworkConfigurationKeySecurity, (const void )kSCNetworkSecurityTypeWPA2Personal, 1, (const void )kSCNetworkConfigurationKeyPassword, (const void )password, 1, NULL, NULL);

CFDictionaryRef networkSettingsDictionary = CFDictionaryCreateWithDictionaryOfStrings(kCFAllocatorDefault, (const void )kSCNetworkConfigurationKeySecurity, (const void )kSCNetworkSecurityTypeWPA2Personal, 1, (const void )kSCNetworkConfigurationKeyPassword, (const void )password, 1, NULL, NULL);

CFDictionaryRef configurationDictionary = CFDictionaryCreateWithDictionaryOfStrings(kCFAllocatorDefault, (const void )kSCNetworkConfigurationKeySecurity, (const void )kSCNetworkSecurityTypeWPA2Personal, 1, (const void )kSCNetworkConfigurationKeyPassword, (const void )password, 1, NULL, NULL);

CFDictionaryRef settingsDictionary = CFDictionaryCreateWithDictionaryOfStrings(kCFAllocatorDefault, (const void )kSCNetworkConfigurationKeySecurity, (const void )kSCNetworkSecurityTypeWPA2Personal, 1

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