我已經檢查了Stack Overflow問題API，以在Android應用程序中配置靜態IP地址。它可以在Android 2.3之前運行。但是，在更高的API級別上沒有運氣。例如，我把設置android.provider.Settings.System.putString(getContentResolver(), android.provider.Settings.System.WIFI_USE_STATIC_IP, "1"); android.provider.Settings.System.putString(getContentResolver(), android.provider.Settings.System.WIFI_STATIC_IP, "192.168.0.100");android.provider.Settings.System.putString(getContentResolver(), android.provider.Settings.System.WIFI_STATIC_NETMASK, "255.255.255.0");android.provider.Settings.System.putString(getContentResolver(), android.provider.Settings.System.WIFI_STATIC_DNS1, "192.168.0.254");android.provider.Settings.System.putString(getContentResolver(), android.provider.Settings.System.WIFI_STATIC_GATEWAY, "192.168.0.254");但是我回過頭來檢查：Setting --> Wi-Fi --> Long Press Access Point SSID --> Modify Network --> check Show advanced options該IP Settings字段仍然說明，DHCP但沒有Static。我確實可以android.provider.Settings.System.getString()用來找回設定的東西。證明該設置保存在某個地方，但是系統只是忽略它。系統使用除android.provider.Settings.SystemAndroid 3.x和4.x上的設置以外的其他設置，因為該設置是根據訪問點SSID設置的。是否可以像在Android 2.3上一樣修改一個SSID上的設置？
3 回答
慕容3067478
TA貢獻1773條經驗 獲得超3個贊
感謝您的解決方案對我在Android M 6.0.1上運行的My Nexus設備的運行正常。
我已經更換了
// apply the configuration change
boolean result = wm.updateNetwork(wifiConf) != -1; //apply the setting
if(result) result = wm.saveConfiguration(); //Save it
if(result) wm.reassociate(); // reconnect with the new static IP
與以下
int netId = manager.updateNetwork(wifiConf);
boolean result = netId!= -1; //apply the setting
if(result){
boolean isDisconnected = manager.disconnect();
boolean configSaved = manager.saveConfiguration(); //Save it
boolean isEnabled = manager.enableNetwork(wifiConf.networkId, true);
// reconnect with the new static IP
boolean isReconnected = manager.reconnect();
}
小怪獸愛吃肉
TA貢獻1852條經驗 獲得超1個贊
對于Android 5.0及更高版本的WIP解決方案。由于某種原因，它尚不起作用。歡迎發表評論。
void changeWifiConfiguration(boolean dhcp, String ip, int prefix, String dns1, String gateway) {
WifiManager wm = (WifiManager) getSystemService(Context.WIFI_SERVICE);
if(!wm.isWifiEnabled()) {
// wifi is disabled
return;
}
// get the current wifi configuration
WifiConfiguration wifiConf = null;
WifiInfo connectionInfo = wm.getConnectionInfo();
List<WifiConfiguration> configuredNetworks = wm.getConfiguredNetworks();
if(configuredNetworks != null) {
for (WifiConfiguration conf : configuredNetworks){
if (conf.networkId == connectionInfo.getNetworkId()){
wifiConf = conf;
break;
}
}
}
if(wifiConf == null) {
// wifi is not connected
return;
}
try {
Class<?> ipAssignment = wifiConf.getClass().getMethod("getIpAssignment").invoke(wifiConf).getClass();
Object staticConf = wifiConf.getClass().getMethod("getStaticIpConfiguration").invoke(wifiConf);
if(dhcp) {
wifiConf.getClass().getMethod("setIpAssignment", ipAssignment).invoke(wifiConf, Enum.valueOf((Class<Enum>) ipAssignment, "DHCP"));
if(staticConf != null) {
staticConf.getClass().getMethod("clear").invoke(staticConf);
}
} else {
wifiConf.getClass().getMethod("setIpAssignment", ipAssignment).invoke(wifiConf, Enum.valueOf((Class<Enum>) ipAssignment, "STATIC"));
if(staticConf == null) {
Class<?> staticConfigClass = Class.forName("android.net.StaticIpConfiguration");
staticConf = staticConfigClass.newInstance();
}
// STATIC IP AND MASK PREFIX
Constructor<?> laConstructor = LinkAddress.class.getConstructor(InetAddress.class, int.class);
LinkAddress linkAddress = (LinkAddress) laConstructor.newInstance(
InetAddress.getByName(ip),
prefix);
staticConf.getClass().getField("ipAddress").set(staticConf, linkAddress);
// GATEWAY
staticConf.getClass().getField("gateway").set(staticConf, InetAddress.getByName(gateway));
// DNS
List<InetAddress> dnsServers = (List<InetAddress>) staticConf.getClass().getField("dnsServers").get(staticConf);
dnsServers.clear();
dnsServers.add(InetAddress.getByName(dns1));
dnsServers.add(InetAddress.getByName("8.8.8.8")); // Google DNS as DNS2 for safety
// apply the new static configuration
wifiConf.getClass().getMethod("setStaticIpConfiguration", staticConf.getClass()).invoke(wifiConf, staticConf);
}
// apply the configuration change
boolean result = wm.updateNetwork(wifiConf) != -1; //apply the setting
if(result) result = wm.saveConfiguration(); //Save it
if(result) wm.reassociate(); // reconnect with the new static IP
} catch(Exception e) {
e.printStackTrace();
}
}
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