Android用代码判断是否在使用VPN

来源：互联网发布：淘宝装修设计教程编辑：程序博客网时间：2024/06/10 21:30

扫描所有网络接口，查看是否有使用VPN的（接口名为tun0或ppp0）：

public static boolean isVpnUsed() {try {Enumeration<NetworkInterface> niList = NetworkInterface.getNetworkInterfaces();if(niList != null) {for (NetworkInterface intf : Collections.list(niList)) {if(!intf.isUp() || intf.getInterfaceAddresses().size() == 0) {continue;}Log.d(TAG, "isVpnUsed() NetworkInterface Name: " + intf.getName());if ("tun0".equals(intf.getName()) || "ppp0".equals(intf.getName())){return true; // The VPN is up}}}} catch (Throwable e) {e.printStackTrace();}return false;}

比如，下面是所有网络接口的列表：

c = {ArrayList@830054223664}  size = 10 0 = {NetworkInterface@830057714392} "[p2p0][8][/fe80::7c7d:3dff:fe4d:ad0f%p2p0%8]" 1 = {NetworkInterface@830057715208} "[sit0][2]" 2 = {NetworkInterface@830054463232} "[tun0][30][/172.66.0.9]"   ////这个接口就是VPN 3 = {NetworkInterface@830054320152} "[lo][1][/::1%1%1][/127.0.0.1]" 4 = {NetworkInterface@830054286792} "[wlan0][9]" 5 = {NetworkInterface@830054270304} "[rmnet0][3][/100.84.44.157]" 6 = {NetworkInterface@830054259216} "[rmnet1][4]" 7 = {NetworkInterface@830054246600} "[rmnet3][6]" 8 = {NetworkInterface@830054236272} "[rmnet2][5]" 9 = {NetworkInterface@830054224840} "[rmnet4][7]"

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