On Android this means keeping a QTcpSocket running after the app is suspended. Until that happens, however, both sides will keep their socket open indefinitely. 2. Using persistent connections is very important for improving HTTP performance. In order to set the keep-alive thresholds, you need to call IOControl on the socket, providing it with a byte array that matches this struct: This struct is from the TCP/IP spec, but, confusingly, a u_long is only 4 bytes, which is not the same as a C# ulong which is 8 bytes. I am writing functionality to connect my application to a point of sale sytem and it's subsequent printers. keep I open connection like this. there is a method called. websockets were introduced to avoid your "ping" suggestion, which was one way to address the matter. Keep-Alive sockets closed by server are not cleaned up, and The below examples demonstrate a few of the possible ways to keep the connection between the server and client alive. View the network packet information on port 9999 of loop lo. The parameter 'on' represents whether the socket should be enabled or not. Bind and emit events only once - put them in the correct place I have trouble to keep socket connection in android. HTTP persistent connection Como manter a conexão do soquete da web ativa quando o … detect a lost TCP socket connection How to keep alive android webview with socket.io as long as … how can i solve this problem? The intent of this project is to help you … Keep-Alive How to set TCP keep-alive socket in android with timeout, interval … Android persistent socket connection rules? - IDQnA.com Simple Description The applications runs a foreground service and establishes a connection with the server and maintains that connection via aggressive pinging (@ 10 secs interval). Using a singleton to share the tcp socket: A singleton object resides in your process, and so once started it's accessible from all the activities Once that time has elapsed, the app can no longer start any services and any services that were started will be terminated. Android socket connection in service. I am also using andyroidasync as the server to receiving file segments. I still having one problem, while mobile data is enabled: case 1: with mobile data enabled. If I connect to closethen it works and I can read the answer. If your … The problem is that after I have read the data, I need to write back to the socket. Android manages showing the list view of the drawer using the z-index in the application and the rest of the stuff would be managed by Android too, like showing the content, changing which layout or content to show etc. The Benefits of Connection Keep Alive. I am trying to keep the socket connection alive so that everytime the pos sends a message my apps … This example Android source code file (sockettest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. How to achieve that with the keep-alive socket. This. Some algorithms, like symmetric encryption and hashing, are fast and easy to implement but provide you with limited protection. Sending and Receiving Data with Sockets in android I can connect programmatically to a wifi network but I can not establish the TCP Socket. C# - The use of Keep-Alive to deal socket abnormal disconnection …