Question

Can anybody tell me how can I set the static IP and gateway programmatically in Android 6?

I have read here and here.

Settings.System is not working anymore and goolgle says WIFI_STATIC_IP was deprecated in API level 17 and Use WifiManger instead. Unfortunately I cannot find anything about it in WifiManger and WifiConfigurationclasses.

Answer 1

由于没有官方API，我必须通过修改以下code snipet和this answer中的示例来提出解决方案。此解决方案适用于Lollipop以上的设备。

 @SuppressWarnings("unchecked")
 public static void setStaticIpConfiguration(WifiManager manager, WifiConfiguration config, InetAddress ipAddress, int prefixLength, InetAddress gateway, InetAddress[] dns) throws ClassNotFoundException, IllegalAccessException, IllegalArgumentException, InvocationTargetException, NoSuchMethodException, NoSuchFieldException, InstantiationException {
        // First set up IpAssignment to STATIC.
        Object ipAssignment = getEnumValue("android.net.IpConfiguration$IpAssignment", "STATIC");
        callMethod(config, "setIpAssignment", new String[]{"android.net.IpConfiguration$IpAssignment"}, new Object[]{ipAssignment});

        // Then set properties in StaticIpConfiguration.
        Object staticIpConfig = newInstance("android.net.StaticIpConfiguration");
        Object linkAddress = newInstance("android.net.LinkAddress", new Class<?>[]{InetAddress.class, int.class}, new Object[]{ipAddress, prefixLength});

        setField(staticIpConfig, "ipAddress", linkAddress);
        setField(staticIpConfig, "gateway", gateway);
        getField(staticIpConfig, "dnsServers", ArrayList.class).clear();
        for (int i = 0; i < dns.length; i++)
            getField(staticIpConfig, "dnsServers", ArrayList.class).add(dns[i]);

        callMethod(config, "setStaticIpConfiguration", new String[]{"android.net.StaticIpConfiguration"}, new Object[]{staticIpConfig});

        int netId = manager.updateNetwork(config);
        boolean result = netId != -1;
        if (result) {
            boolean isDisconnected = manager.disconnect();
            boolean configSaved = manager.saveConfiguration();
            boolean isEnabled = manager.enableNetwork(config.networkId, true);
            boolean isReconnected = manager.reconnect();
        }
    }

助手功能，

    public static WifiConfiguration getCurrentWiFiConfiguration(Context context) {
            WifiConfiguration wifiConf = null;
            ConnectivityManager connManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
            NetworkInfo networkInfo = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
            if (networkInfo.isConnected()) {
                final WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
                final WifiInfo connectionInfo = wifiManager.getConnectionInfo();
                if (connectionInfo != null && !TextUtils.isEmpty(connectionInfo.getSSID())) {
                    List<WifiConfiguration> configuredNetworks = wifiManager.getConfiguredNetworks();
                    if (configuredNetworks != null) {
                        for (WifiConfiguration conf : configuredNetworks) {
                            if (conf.networkId == connectionInfo.getNetworkId()) {
                                wifiConf = conf;
                                break;
                            }
                        }
                    }
                }
            }
            return wifiConf;
        }

 private static Object newInstance(String className) throws ClassNotFoundException, InstantiationException, IllegalAccessException, NoSuchMethodException, IllegalArgumentException, InvocationTargetException {
        return newInstance(className, new Class<?>[0], new Object[0]);
    }

    private static Object newInstance(String className, Class<?>[] parameterClasses, Object[] parameterValues) throws NoSuchMethodException, InstantiationException, IllegalAccessException, IllegalArgumentException, InvocationTargetException, ClassNotFoundException {
        Class<?> clz = Class.forName(className);
        Constructor<?> constructor = clz.getConstructor(parameterClasses);
        return constructor.newInstance(parameterValues);
    }

    @SuppressWarnings({"unchecked", "rawtypes"})
    private static Object getEnumValue(String enumClassName, String enumValue) throws ClassNotFoundException {
        Class<Enum> enumClz = (Class<Enum>) Class.forName(enumClassName);
        return Enum.valueOf(enumClz, enumValue);
    }

    private static void setField(Object object, String fieldName, Object value) throws IllegalAccessException, IllegalArgumentException, NoSuchFieldException {
        Field field = object.getClass().getDeclaredField(fieldName);
        field.set(object, value);
    }

    private static <T> T getField(Object object, String fieldName, Class<T> type) throws IllegalAccessException, IllegalArgumentException, NoSuchFieldException {
        Field field = object.getClass().getDeclaredField(fieldName);
        return type.cast(field.get(object));
    }

    private static void callMethod(Object object, String methodName, String[] parameterTypes, Object[] parameterValues) throws ClassNotFoundException, IllegalAccessException, IllegalArgumentException, InvocationTargetException, NoSuchMethodException {
        Class<?>[] parameterClasses = new Class<?>[parameterTypes.length];
        for (int i = 0; i < parameterTypes.length; i++)
            parameterClasses[i] = Class.forName(parameterTypes[i]);

        Method method = object.getClass().getDeclaredMethod(methodName, parameterClasses);
        method.invoke(object, parameterValues);
    }

要使用它，

WifiManager wifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
WifiConfiguration wifiConf = WifiHelper.getCurrentWiFiConfiguration(getApplicationContext());

        try {
            setStaticIpConfiguration(wifiManager, wifiConf,
                    InetAddress.getByName("192.168.0.100"),
                    24,
                    InetAddress.getByName("10.0.0.2"),
                    new InetAddress[]{InetAddress.getByName("10.0.0.3"), InetAddress.getByName("10.0.0.4")});

        } catch (Exception e) {
            e.printStackTrace();
        }

最后，您需要在清单中添加这些权限，

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

Answer 2

我已经解决了一些问题，我的发现是，如果应用程序设置为设备所有者，那么以前用于Andrdoi 5.x的代码可能会起作用。

解决方案：

解决方案是将设备添加为deviceOwner。这将允许使用Mogi引用的5.x hacks设置静态IP。如何完成此操作的一个很好的示例是使用此处的示例：

https://github.com/googlesamples/android-DeviceOwner/

使用adb shell并运行命令：

dpm set-device-owner com.example.android.deviceowner/.DeviceOwnerReceiver

将准备好让它继续工作。

Answer 3

我已成功在我的应用程序中以编程方式添加并连接到open和PSK网络（在运行5.1和6.0的设备上尝试过）。但是当我为企业网络尝试这个时，它不起作用。我看到addNetwork（）成功（返回正网络ID）但是当我查看Settings-＆gt; Wi-Fi时，我没有像我为其他添加的SSID那样看到SSID。谁知道为什么会这样？如果我以编程方式搜索WiFiConfiguration列表，它确实找到了SSID。这是我使用的代码：

wifiConf = new WifiConfiguration();
wifiConf.SSID = "\"dot1x-test\"";
wifiConf.BSSID = "c4:e9:84:43:48:e8";
if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
    wifiConf.enterpriseConfig.setIdentity("name");
    wifiConf.enterpriseConfig.setPassword("testpassword");
    wifiConf.enterpriseConfig.setEapMethod(WifiEnterpriseConfig.Eap.PEAP);
    wifiConf.enterpriseConfig.setPhase2Method(WifiEnterpriseConfig.Phase2.MSCHAPV2);
}

netId = wifiMgr.addNetwork(wifiConf);
wifiMgr.disconnect();
wifiMgr.enableNetwork(netId, true);
wifiMgr.saveConfiguration();
wifiMgr.reconnect();

Set static IP and gateway programmatically in Android 6.x (Marshmallow)

3 个答案: