MobileWiFi.framework | |
Private Framework | |
---|---|
Availabile | 3.0 – present |
Headers | [headers.cynder.me] |
MobileWiFi is the framework that manages WiFi functionality on iOS. It replaces the obsolete Apple80211 framework.
- Note: Your program needs the com.apple.wifi.manager-access entitlement to use any of the WiFiManager functions.
Retrieving a list of known networks
#include <MobileWiFi.h>
WiFiManagerRef manager = WiFiManagerClientCreate(kCFAllocatorDefault, 0);
CFArrayRef networks = WiFiManagerClientCopyNetworks(manager);
NSLog(@"networks: %@", networks);
CFRelease(manager);
CFRelease(networks);
Getting the WiFi signal strength
#include <math.h>
#include <MobileWiFi.h>
WiFiManagerRef manager = WiFiManagerClientCreate(kCFAllocatorDefault, 0);
CFArrayRef devices = WiFiManagerClientCopyDevices(_manager);
WiFiDeviceClientRef client = (WiFiDeviceClientRef)CFArrayGetValueAtIndex(devices, 0);
CFNumberRef RSSI = (CFNumberRef)WiFiDeviceClientCopyProperty(client, kWiFiScaledRSSIKey);
float strength;
CFNumberGetValue(RSSI, kCFNumberFloatType, &strength);
strength = strength * 100;
// Round to the nearest integer.
strength = ceilf(strength);
// Convert to a negative number (RSSI is negative).
strength = strength * -1;
NSLog(@"WiFi signal strength: %f dBm", strength);
CFRelease(RSSI);
CFRelease(devices);
CFRelease(manager);
Scanning for nearby networks
#include <MobileWiFi.h>
static WiFiManagerRef _manager;
static void scan_callback(WiFiDeviceClientRef device, CFArrayRef results, CFErrorRef error, void *token);
int main()
{
_manager = WiFiManagerClientCreate(kCFAllocatorDefault, 0);
CFArrayRef devices = WiFiManagerClientCopyDevices(_manager);
if (!devices) {
fprintf(stderr, "Couldn't get WiFi devices. Bailing.\n");
exit(EXIT_FAILURE);
}
WiFiDeviceClientRef client = (WiFiDeviceClientRef)CFArrayGetValueAtIndex(devices, 0);
WiFiManagerClientScheduleWithRunLoop(_manager, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
WiFiDeviceClientScanAsync(client, (CFDictionaryRef)[NSDictionary dictionary], scan_callback, 0);
CFRelease(devices);
CFRunLoopRun();
}
static void scan_callback(WiFiDeviceClientRef device, CFArrayRef results, CFErrorRef error, void *token)
{
NSLog(@"Finished scanning! networks: %@", results);
WiFiManagerClientUnscheduleFromRunLoop(_manager);
CFRelease(_manager);
CFRunLoopStop(CFRunLoopGetCurrent());
}
References