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Old 10-04-2005, 04:32 PM   #1 (permalink)
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Default blocking operations in event dispatch thread

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I'm trying to write an app which creates a socket connection to a remote server and writes a command string to it. It worked fine in the simulator, but when I copied it to the handheld, I got an error about blocking operations not being permitted in the event dispatch thread. Next, I tried creating a Runnable object and using InvokeLater, like this:

Runnable sendQuery = new Runnable() {
public void run() {
try {
StreamConnection conn = null;
conn = (StreamConnection);
OutputStreamWriter _out = new OutputStreamWriter(conn.openOutputStream());
String data = "query " + myContextField.getText() + "\n";
int length = data.length();
catch (Exception e) {
Dialog.inform("Error: " + e);

But I get the same thing. What do I need to do?

Old 10-05-2005, 11:49 AM   #2 (permalink)
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You need to create a new Thread to run this in, so that it does not run in the event dispatch thread. has more info on how to do it, as well as how to access UI fields from the background thread
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