how to keep socket connection alive in android

To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Nothing. What does "Smote their breasts" signify in Luke 23:48? If a device app publishes a message with QoS 2, IoT Hub closes the network connection. Asking for help, clarification, or responding to other answers. This works fine for desktop browsers, But on all mobile browsers, whenever user's page is not in focus, i.e if a user minimizes the browser, opens a new app, or goto select file upload screen, socket io times out after 30 seconds or sometimes even faster then this. For more information, see Understand and invoke direct methods from IoT Hub. I think the best approach is to use a bound Service that autostarts. Any traffic resets the keep-alive. Sorted by: 1. In the CONNECT packet, the device should use the following values: For the ClientId field, use the deviceId. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Connect and share knowledge within a single location that is structured and easy to search. If an application attempts to set the SO_KEEPALIVE socket option when a connection request is still in process, the setsockopt function will fail and return WSAEINVAL. Feel free to use it in production environment.. @RemyLebeau I'm not trying to be difficult. rev2023.4.21.43403. How to use java.net.URLConnection to fire and handle HTTP requests. A. I really like this answer it is not a best fit for the question but what you wrote in your answer is just what I was looking for. Not the answer you're looking for? However if we are using keep-alive feature, the connection is not closed after receiving the data. @CoolMind with a bound service, where all activities are binding to it, you gain that you can be using the socket from many activities and not having it restart when you are navigating from one activity to another (practically keeping your socket connection alive while navigating). This limit exists because all Azure services are bound to the Azure load balancer TCP idle timeout, which is 29.45 minutes. Also, $version indicates the new version of the desired properties section of the twin. First, a device subscribes to $iothub/twin/res/#, to receive the operation's responses. Note: Set the Connection header to "keep-alive" for this header to have any effect. "Signpost" puzzle from Tatham's collection. Generic Doubly-Linked-Lists C implementation. Learn more about Stack Overflow the company, and our products. The SO_KEEPALIVE socket option is valid only for protocols that support the notion of keep-alive (connection-oriented protocols). We still have to send packets, but how can it somehow establish the persistent connection?

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