使用私有API读取WiFi RSSI值 [英] Using Private API To read WiFi RSSI Value

问题描述

我正在开发一些不需要在App Store上的东西，所以我没有使用私有API来满足我的需求的问题
我正在尝试使用 MobileWiFi。框架，用于读取手机当前连接的无线网络的RSSI值。我已经包含了 https：// github.com/Cykey/ios-reversed-headers/tree/c613e45f3ee5ad9f85ec7d43906cf69ee812ec6a/MobileWiFi `标题并使用桥接头将它们包含在我的swift项目中，并按如下方式编写代码。请原谅，我是新手。

I'm working on something that will not need to be on the App store, so I have no issues with using private APIs to meet my needs I'm trying to use the MobileWiFi. framework to read the RSSI value for the wireless network the phone is currently connected to. I've included thehttps://github.com/Cykey/ios-reversed-headers/tree/c613e45f3ee5ad9f85ec7d43906cf69ee812ec6a/MobileWiFi` headers and used a bridging header to include them in my swift project and wrote the code as follows. Please excuse me, I am a newbie.

import SystemConfiguration.CaptiveNetwork
typealias _WiFiManagerClientCreate = @convention(c) (CFAllocator, CInt) -> UnsafeRawPointer
typealias _WiFiManagerClientCopyDevices = @convention(c) (UnsafeRawPointer) -> CFArray
typealias _WiFiDeviceClientCopyProperty = @convention(c) (UnsafeRawPointer, CFString) -> CFPropertyList

if let libHandle = dlopen (Paths.ipConfiguration, RTLD_LAZY) {
        result = libHandle.debugDescription

        let _createManagerPtr = dlsym(libHandle, "WiFiManagerClientCreate")
        let _clientCopyDevicesPtr = dlsym(libHandle, "WiFiManagerClientCopyDevices")
        let _clientCopyPropertyPtr = dlsym(libHandle, "WiFiDeviceClientCopyProperty")

        if (_createManagerPtr != nil) && (_clientCopyDevicesPtr != nil) && (_clientCopyPropertyPtr != nil) {
            let _createManager = unsafeBitCast(_createManagerPtr, to: _WiFiManagerClientCreate.self)
            let _clientCopyDevices = unsafeBitCast(_clientCopyDevicesPtr, to: _WiFiManagerClientCopyDevices.self)
            let _clientCopyProperty = unsafeBitCast(_clientCopyPropertyPtr, to: _WiFiDeviceClientCopyProperty.self)

            let manager = _createManager(kCFAllocatorDefault, 0)
            let devices = _clientCopyDevices(manager)
            let client = CFArrayGetValueAtIndex(devices, 0)

            let data = _clientCopyProperty(client!, "RSSI" as CFString)
            let rssi = CFDictionaryGetValue(data as! CFDictionary, "RSSI_CTL_AGR")

            NSLog("RSSI: \(rssi)")
        }

        dlclose(libHandle)
    }

产生错误致命错误：在展开可选值w时意外发现nil这源于试图调用_createManager

推荐答案

我最终使用了这个解决方法：

I ended up using this workaround:

+ (int) wifiStrength {
UIApplication *app = [UIApplication sharedApplication];
NSArray *subviews = [[[app valueForKey:@"statusBar"] valueForKey:@"foregroundView"] subviews];
NSString *dataNetworkItemView = nil;

for (id subview in subviews) {
    if([subview isKindOfClass:[NSClassFromString(@"UIStatusBarDataNetworkItemView") class]]) {
        dataNetworkItemView = subview;
        break;
    }
}

return[[dataNetworkItemView valueForKey:@"wifiStrengthRaw"] intValue];
}

没有任何权利或越狱的工作

Works without any entitlements or jailbreaking

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