Android开发准确获取手机IP地址的两种方式

String ip;
ConnectivityManager cOnMann= (ConnectivityManager) 
				this.getSystemService(Context.CONNECTIVITY_SERVICE);
			NetworkInfo mobileNetworkInfo = conMann.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
			NetworkInfo wifiNetworkInfo = conMann.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
		
		if (mobileNetworkInfo.isConnected()) {
			ip = getLocalIpAddress();	
			System.out.println("本地ip-----"+ip);
		}else if(wifiNetworkInfo.isConnected())
		{
			WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE); 
			WifiInfo wifiInfo = wifiManager.getConnectionInfo();    
		  int ipAddress = wifiInfo.getIpAddress();  
		  ip = intToIp(ipAddress); 
		  System.out.println("wifi_ip地址为------"+ip);
		}	

public String getLocalIpAddress() { 
    try { 
      String ipv4; 
      ArrayList nilist = Collections.list(NetworkInterface.getNetworkInterfaces()); 
      for (NetworkInterface ni: nilist)  
      { 
        ArrayList ialist = Collections.list(ni.getInetAddresses()); 
        for (InetAddress address: ialist){ 
          if (!address.isLoopbackAddress() && InetAddressUtils.isIPv4Address(ipv4=address.getHostAddress()))  
          {  
            return ipv4; 
          } 
        } 
  
      } 
  
    } catch (SocketException ex) { 
      Log.e("localip", ex.toString()); 
    } 
    return null; 
  } 

public static String intToIp(int ipInt) { 
	    StringBuilder sb = new StringBuilder(); 
	    sb.append(ipInt & 0xFF).append("."); 
	    sb.append((ipInt >> 8) & 0xFF).append("."); 
	    sb.append((ipInt >> 16) & 0xFF).append("."); 
	    sb.append((ipInt >> 24) & 0xFF); 
	    return sb.toString(); 
	  } 

private String getlocalIp() {
	String ip;
	
		try { 
			for (Enumeration en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) { 
				NetworkInterface intf = en.nextElement(); 
				for (Enumeration enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) { 
					InetAddress inetAddress = enumIpAddr.nextElement(); 
					if (!inetAddress.isLoopbackAddress()&&!inetAddress.isLinkLocalAddress()) { 
//	  	        	ip=inetAddress.getHostAddress().toString();
						System.out.println("ip=========="+inetAddress.getHostAddress().toString());
						return inetAddress.getHostAddress().toString(); 
					 
					} 
				} 
			} 
		} catch (SocketException ex) { 
			Log.e("WifiPreference IpAddress", ex.toString()); 	  	  
	} 
	return null;
}