获取Android(安卓)IP信息

1.使用WIFI

首先manifest.xml中设置用户权限

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

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

<uses-permission android:name="android.permission.WAKE_LOCK"></uses-permission>

代码如下

private String intToIp(int i) {
return (i & 0xFF ) + "." +
((i >> 8 ) & 0xFF) + "." +
((i >> 16 ) & 0xFF) + "." +
( i >> 24 & 0xFF) ;
}
private String getLocalIPAddress() {
//获取wifi服务
WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
//判断wifi是否开启
if (!wifiManager.isWifiEnabled()) {
wifiManager.setWifiEnabled(true);
}
WifiInfo wifiInfo = wifiManager.getConnectionInfo();
int ipAddress = wifiInfo.getIpAddress();
String ip = intToIp(ipAddress);
return ip;

}

//logcat打印出来

Log.d("IP:", getLocalIPAddress());

2.使用GPRS

首先，设置用户上网权限

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

其次，代码如下

public String getLocalIpAddress()

{

try

{

for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();)

{

NetworkInterface intf = en.nextElement();

for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();)

{

InetAddress inetAddress = enumIpAddr.nextElement();

if (!inetAddress.isLoopbackAddress())

{

return inetAddress.getHostAddress().toString();

}

catch (SocketException ex)

{

Log.e("WifiPreference IpAddress", ex.toString());

}

return null;

}

更多相关文章

随机推荐