如何在 iPhone X iOS Swift 上测量 WiFi dBm 强度
How to measure WiFi dBm strength on iPhone X iOS Swift
我正在寻找获取 wifi 原始信号的方法，iPhone X 手机上的 dBm，但只能找到如何从以下位置获取 numberOfActiveBars：
尝试@Mosbash 回答，遇到崩溃。
Thread 1: EXC_BAD_ACCESS (code=1, address=0x18)代码：
class ViewController: UIViewController {
var hotspot: NEHotspotNetwork!
func viewDidLoad() {
....
hotspot = NEHotspotNetwork()
}
func record() {
hotspot.setConfidence(.high) /// <- Crash
print(hotspot.signalStrength) /// <- Crash if above line is commented out
}
}
您可以按照此处所述使用 NEHotspotNetwork 的 signalStrength
https://developer.apple.com/documentation/networkextension/nehotspotnetwork/1618923-signalstrength
When the Hotspot Helper app is asked to evaluate the a network or
filter the Wi-Fi scan list, it annotates the NEHotspotNetwork object
via the setConfidence: method.
这里是将 Wifi 信号强度百分比转换为 RSSI dBm 的公式：
quality = 2 * (dBm + 100) where dBm: [-100 to -50]
dBm = (quality / 2) - 100 where quality: [0 to 100]
有关详细信息，请参阅此答案：
How to convert Wifi signal strength from Quality (percent) to RSSI (dBm)?
您需要征得 Apple 的许可并创建授权。
我正在寻找获取 wifi 原始信号的方法，iPhone X 手机上的 dBm，但只能找到如何从以下位置获取 numberOfActiveBars：
尝试@Mosbash 回答，遇到崩溃。
Thread 1: EXC_BAD_ACCESS (code=1, address=0x18)代码：
class ViewController: UIViewController {
var hotspot: NEHotspotNetwork!
func viewDidLoad() {
....
hotspot = NEHotspotNetwork()
}
func record() {
hotspot.setConfidence(.high) /// <- Crash
print(hotspot.signalStrength) /// <- Crash if above line is commented out
}
}
您可以按照此处所述使用 NEHotspotNetwork 的 signalStrength https://developer.apple.com/documentation/networkextension/nehotspotnetwork/1618923-signalstrength
When the Hotspot Helper app is asked to evaluate the a network or filter the Wi-Fi scan list, it annotates the NEHotspotNetwork object via the setConfidence: method.
这里是将 Wifi 信号强度百分比转换为 RSSI dBm 的公式：
quality = 2 * (dBm + 100) where dBm: [-100 to -50]
dBm = (quality / 2) - 100 where quality: [0 to 100]
有关详细信息，请参阅此答案： How to convert Wifi signal strength from Quality (percent) to RSSI (dBm)?
您需要征得 Apple 的许可并创建授权。