Wifi管理器和wifi信息

Question

我想了解一些关于Wifi的信息，比如SSID名称、ip地址和速度，所以我编写了下面的代码

WifiManager wifiMgr = (WifiManager) getSystemService(WIFI_SERVICE);
WifiInfo wifiInfo = wifiMgr.getConnectionInfo();

int ip = wifiInfo.getIpAddress();
int speed = wifiInfo.getLinkSpeed();
speedString = Integer.toString(speed);
mac = wifiInfo.getMacAddress();
ssid = wifiInfo.getSSID();
ipAddress = Formatter.formatIpAddress(ip);

问题是，如果启用了WiFi，但电话没有连接到我显示的任何网络

SSID: 0x
Ip: 0.0.0.0
Speed: -1 mbps

我不想显示这种类型的信息，所以我尝试了

if(ipAddress=="0.0.0.0") {
    Ip.setSummary("Not connected");
}

但是不要工作，因为我看到了相同的信息(ssid: 0x，ip: 0.0.0.0ECC)。我怎么才能修好？

Answer 1

NetworkInfo networkInfo = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
if (networkInfo.isConnected()) {
WifiManager wifiMgr = (WifiManager) getSystemService(WIFI_SERVICE);
WifiInfo wifiInfo = wifiMgr.getConnectionInfo();

int ip = wifiInfo.getIpAddress();
int speed = wifiInfo.getLinkSpeed();
speedString = Integer.toString(speed);
mac = wifiInfo.getMacAddress();
ssid = wifiInfo.getSSID();
ipAddress = Formatter.formatIpAddress(ip);
}

尝尝这个