Android 获取 WiFi IP 地址

Android

    // 获取wifi服务
    WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
    // 判断wifi是否开启
    if (!wifiManager.isWifiEnabled()) {
        wifiManager.setWifiEnabled(true);
    }
    WifiInfo wifiInfo = wifiManager.getConnectionInfo();
    int ipAddress = wifiInfo.getIpAddress();
    localIP = intToIp(ipAddress);

    // 获取本机IP地址
    private String intToIp(int i) {
        return (i & 0xFF) + "." + ((i >> 8) & 0xFF) + "." + ((i >> 16) & 0xFF)
                + "." + (i >> 24 & 0xFF);
    }

需要权限

<uses-permission android:name="android.permission.INTERNET" /> 
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>