android获取wifi的IP，子网掩码，网关，dns等信息 _android

【android获取wifi的IP，子网掩码，网关，dns等信息】赋料扬雄敌，诗看子建亲。这篇文章主要讲述android获取wifi的IP，子网掩码，网关，dns等信息相关的知识，希望能为你提供帮助。

public class MainActivity extends Activity { private WifiManager my_wifiManager; private WifiInfo wifiInfo; private DhcpInfo dhcpInfo; private TextView tvResult; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); my_wifiManager = ((WifiManager) getSystemService("wifi")); dhcpInfo = my_wifiManager.getDhcpInfo(); wifiInfo = my_wifiManager.getConnectionInfo(); tvResult = (TextView) findViewById(R.id.tvResult); } @Override protected void onResume() { super.onResume(); StringBuilder sb = new StringBuilder(); sb.append("网络信息："); sb.append("\nipAddress：" + intToIp(dhcpInfo.ipAddress)); sb.append("\nnetmask：" + intToIp(dhcpInfo.netmask)); sb.append("\ngateway：" + intToIp(dhcpInfo.gateway)); sb.append("\nserverAddress：" + intToIp(dhcpInfo.serverAddress)); sb.append("\ndns1：" + intToIp(dhcpInfo.dns1)); sb.append("\ndns2：" + intToIp(dhcpInfo.dns2)); sb.append("\n"); System.out.println(intToIp(dhcpInfo.ipAddress)); System.out.println(intToIp(dhcpInfo.netmask)); System.out.println(intToIp(dhcpInfo.gateway)); System.out.println(intToIp(dhcpInfo.serverAddress)); System.out.println(intToIp(dhcpInfo.dns1)); System.out.println(intToIp(dhcpInfo.dns2)); System.out.println(dhcpInfo.leaseDuration); sb.append("Wifi信息："); sb.append("\nIpAddress：" + intToIp(wifiInfo.getIpAddress())); sb.append("\nMacAddress：" + wifiInfo.getMacAddress()); tvResult.setText(sb.toString()); } private String intToIp(int paramInt) { return (paramInt & 0xFF) + "." + (0xFF & paramInt > > 8) + "." + (0xFF & paramInt > > 16) + "." + (0xFF & paramInt > > 24); } }

效果例如以下：

文章图片

备注：
android.net.NetworkUtils

/** * Convert a IPv4 address from an integer to an InetAddress. * @param hostAddress an int corresponding to the IPv4 address in network byte order */ public static InetAddress intToInetAddress(int hostAddress) { byte[] addressBytes = { (byte)(0xff & hostAddress), (byte)(0xff & (hostAddress > > 8)), (byte)(0xff & (hostAddress > > 16)), (byte)(0xff & (hostAddress > > 24)) }; try { return InetAddress.getByAddress(addressBytes); } catch (UnknownHostException e) { throw new AssertionError(); } }