Androidブロードキャストアドレス取得

Java

InetAddress getBroadcastAddress() throws IOException { WifiManager wifi = (WifiManager)this.context.getSystemService(Context.WIFI_SERVICE); DhcpInfo dhcp = wifi.getDhcpInfo(); // handle null somehow int broadcast = (dhcp.ipAddress & dhcp.netmask) | ~dhcp.netmask; byte[] quads = new byte[4]; for (int k = 0; k < 4; k++) quads[k] = (byte) ((broadcast >> k * 8) & 0xFF); return InetAddress.getByAddress(quads); }

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InetAddress getBroadcastAddress() throws IOException {     WifiManager wifi = (WifiManager)this.context.getSystemService(Context.WIFI_SERVICE);     DhcpInfo dhcp = wifi.getDhcpInfo();       // handle null somehow       int broadcast = (dhcp.ipAddress & dhcp.netmask) | ~dhcp.netmask;     byte[] quads = new byte[4];     for (int k = 0; k < 4; k++)         quads[k] = (byte) ((broadcast >> k * 8) & 0xFF);     return InetAddress.getByAddress(quads); }