Android检测相同SSID下的wifi热点并切换到信号更强的

WifiManager mWifiManager = (WifiManager) context        .getSystemService(Context.WIFI_SERVICE);WifiInfo wifiInfo = mWifiManager.getConnectionInfo();if (wifiInfo != null) {    String curentSSID = wifiInfo.getSSID();    List sameSSIDList = new ArrayList();    List list = mWifiManager.getScanResults();    if (list != null) {        for (ScanResult rt : list) {            if (curentSSID.replace("\"", "").equals(rt.SSID)) {                sameSSIDList.add(rt);            }        }    }    if (sameSSIDList.size() >= 2) {        ScanResult strongestRssi = sameSSIDList.get(0);        Log.e("lihaile", "multiple ap");        for (int i = 1; i <= (sameSSIDList.size() - 1); i++) {            if (sameSSIDList.get(i).level > strongestRssi.level) {                strongestRssi = sameSSIDList.get(i);            }        }        if ((strongestRssi.level - wifiInfo.getRssi()) > 10) {            Log.e("lihaile", "change ap");            // MainActivity.appInfo("有更好的wifi");            mWifiManager.disconnect();            //  MainActivity.appInfo("正在切换");            mWifiManager.reconnect();        }    }}

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