在Android中获得WiFi信号强度 [英] Getting WiFi signal strength in Android

问题描述

我可以使用以下代码获得以dBm为单位的WiFi信号电平.

I can get WiFi signal level in dBm using following code.

for (ScanResult result : wifiScanResultList) {
    int signalLevel = result.level;
}

它给出负值.当我们看到默认的系统WiFi设置并单击连接的WiFi网络时，它会给出好"或差"作为信号强度.我们可以将那些负值过滤为好"信号强度或坏"信号强度的范围是什么?

It gives negative value. When we see the default system WiFi setting and clicked on the connected WiFi network, it gives "Good" or "Bad" as signal strength. What is the range that we can filter those negative vales as "Good" signal strength or "Bad" signal strength?

推荐答案

它有一条旧帖子，但这可能对某人有帮助...

its an old post but this might help someone...

WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
int numberOfLevels = 5;
WifiInfo wifiInfo = wifiManager.getConnectionInfo();
int level = WifiManager.calculateSignalLevel(wifiInfo.getRssi(), numberOfLevels);

文档:公共静态int computeSignalLevel(int rssi， int numLevels)

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