MainActivity如下:
package cn.testip;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;
import android.os.Bundle;
import android.app.Activity;
/**
* Demo描述:
* 获取移动设备的IP地址
*/
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
String IP=getIP();
System.out.println("The IP of this handset is : "+IP);
}
private String getIP() {
String IP = null;
StringBuilder IPStringBuilder = new StringBuilder();
try {
Enumeration<NetworkInterface> networkInterfaceEnumeration = NetworkInterface.getNetworkInterfaces();
while (networkInterfaceEnumeration.hasMoreElements()) {
NetworkInterface networkInterface = networkInterfaceEnumeration.nextElement();
Enumeration<InetAddress> inetAddressEnumeration = networkInterface.getInetAddresses();
while (inetAddressEnumeration.hasMoreElements()) {
InetAddress inetAddress = inetAddressEnumeration.nextElement();
if (!inetAddress.isLoopbackAddress()&&
!inetAddress.isLinkLocalAddress()&&
inetAddress.isSiteLocalAddress()) {
IPStringBuilder.append(inetAddress.getHostAddress().toString()+"\n");
}
}
}
} catch (SocketException ex) {
}
IP = IPStringBuilder.toString();
return IP;
}
}
main.xml如下:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="获取设备的IP"
android:layout_centerInParent="true"
android:textSize="28sp"
/>
</RelativeLayout>
