Question

我使用连接管理器类获取网络信息，我只是得到网络类型是Wifi或以太网。但是当我的网络类型是Wifi时，我想知道它的静态还是动态。

有人可以帮我解决这个问题吗？

Answer 1

下面的

您可以找到从此thread改编的简单（未优化）代码。代码是为Android 4.0编写的。

请记住添加其他用户权限：

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

方法：

public String getIpAssignment(){

    String myenumvalue="";
    WifiConfiguration wifiConf = null;
    WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
    WifiInfo connectionInfo = wifiManager.getConnectionInfo();
    List<WifiConfiguration> configuredNetworks = wifiManager.getConfiguredNetworks();        
    for (WifiConfiguration conf : configuredNetworks){
        if (conf.networkId == connectionInfo.getNetworkId()){
            wifiConf = conf;
            break;              
        }
    }
    if(wifiConf != null){

        try {
            Object Enumer = getDeclaredField(wifiConf, "ipAssignment");
            myenumvalue = Enumer.toString();
        } catch (SecurityException e) {
            e.printStackTrace();
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        } catch (NoSuchFieldException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        }   


    }

    return myenumvalue;
}

它从ipAssignment返回一个枚举字段：UNASSIGNED | STATIC | DHCP

Answer 2

我的android测试设备android版本5.1.1（嵌入式板）我使用了上面的代码，但它落入了错误（“捕获NoSuchFieldException”）

我使用以下代码查找静态或dhcp连接：

 public void getWifiDhcpStatic(){
    WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
    WifiInfo connectionInfo = wifiManager.getConnectionInfo();
    List<WifiConfiguration> configuredNetworks = wifiManager.getConfiguredNetworks();
    for (WifiConfiguration conf : configuredNetworks){
        if (conf.networkId == connectionInfo.getNetworkId()){
            if (conf.toString().toLowerCase().indexOf("DHCP".toLowerCase())>-1){
                Log.i("myLogDHCPorSTATIC","DHCP ");

            }else if(conf.toString().toLowerCase().indexOf("STATIC".toLowerCase())>-1){
                Log.i("myLogDHCPorSTATIC","STATIC ");

            }
            break;
        }
    }
}

别忘了添加清单

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />

如何检查wifi连接是否是静态的或不是以编程方式在android中

2 个答案: