获取android连接wifi时候的广播地址

 

private InetAddress getBroadcastAddress() throws IOException {
	WifiManager myWifiManager = (WifiManager) getSystemService(WIFI_SERVICE);
	DhcpInfo myDhcpInfo = myWifiManager.getDhcpInfo();
	if (myDhcpInfo == null) {
		System.out.println("Could not get broadcast address");
		return null;
	}
	int broadcast = (myDhcpInfo.ipAddress & myDhcpInfo.netmask)
				| ~myDhcpInfo.netmask;
	byte[] quads = new byte[4];
	for (int k = 0; k < 4; k++)
	quads[k] = (byte) ((broadcast >> k * 8) & 0xFF);
	return InetAddress.getByAddress(quads);
}