Question

我正在使用此方法获取BroadCast地址数组。

旧API中不存在使用的某些方法和类所以我在方法的开头添加了一个版本检查。我正在尝试在Android 1.6模拟器上运行它，它失败并出现验证错误。

private InetAddress[] getBroadCast() throws SocketException
{

    int currentapiVersion = android.os.Build.VERSION.SDK_INT;
    if (currentapiVersion < 9)
    {       
        try {
            String ipString = getWifiIp();
            int loc = ipString.lastIndexOf(".");
            InetAddress baddrs[] = new InetAddress[1];
            baddrs[0] = new InetAddress.getByName(ipString.substring(0, loc)+".255");
            return baddrs;
        } catch (UnknownHostException e) {
            e.printStackTrace();
            return null;
        }
    }
            else{
    String bcast="";
    for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) {
        NetworkInterface intf = en.nextElement();

        for (InterfaceAddress address : intf.getInterfaceAddresses()) {
            if(address.getBroadcast()!=null) bcast=bcast+address.getBroadcast().toString().substring(1)+"::";
        }}
    String[] bcastarray= bcast.split("::");
    InetAddress baddrs[] = new InetAddress[bcastarray.length];
    for(int i=0;i<bcastarray.length;i++)
        try {
            baddrs[i] = new  InetAddress.getByName(bcastarray[i]);
        } catch (UnknownHostException e) {
            e.printStackTrace();
        }
    return baddrs;
}
 }

这些是出现的错误

10-12 11:38:22.030: W/dalvikvm(297): VFY: unable to resolve virtual method 4463: Ljava/net/NetworkInterface;.getInterfaceAddresses ()Ljava/util/List;
10-12 11:38:22.030: W/dalvikvm(297): VFY:  rejecting opcode 0x6e at 0x0071
10-12 11:38:22.040: W/dalvikvm(297): VFY:  rejected Lhello/BroadcastSend;.getBroadCast ()[Lhello/IPMAddress;
10-12 11:38:22.040: W/dalvikvm(297): Verifier rejected class Lhello/BroadcastSend;
10-12 11:38:22.040: W/dalvikvm(297): threadid=19: thread exiting with uncaught exception (group=0x4001aa28)

android.os.Build.VERSION.SDK_INT仅适用于API Level 4及更高版本。我正在寻找解决这些问题的方法

Answer 1

这不适用于1.6。 1.6类加载器将尝试检查所有方法，即使您实际上没有调用它们，这就是您收到错误的原因。您必须创建一个调用getInterfaceAddress()的包装类，以便它根本不会被加载。

如何摆脱Android验证错误

1 个答案: