Question

I have c++ socket server and android client. Server constantly sends data to the client after a time interval. The question is how to implement this getting data on android client

socket = new Socket("xxx.xxx.xxx.x", xxxx); // I connect
.... socket.getInputStream();               // Get first input stream

How to make it continuously receiving data? I tried something like this while(true) { ..socket.getInputStream(); Thread.sleep(…); } It didn’t help

Answer 1

Note that you have to open the input stream only once. Then, if you perform a read() operation on the input stream it will block (of course if you use a blocking read (blocking vs non-blocking read) ).

You can find information about java socket programming here: link

You can find lost of examples for socket programming on Android platform here: link

For example:

BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));
String line = "";
while (true) {
    line = br.readLine(); // at this line, execution will stop until data is received
    System.out.println("The read line is: " + line);
}
br.close();