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There is an awful lot to learn in Android programming. I've only been working with Android stuff for a couple of months.

The site you posted the link to has some examples on how to use threads:
Android | Examples Java Code Geeks

Besides using threads, you might need to see how to pass data read on the thread to the...

You should copy and paste the logcat contents in the thread and not use attachments that require downloads.
Android does not allow some tasks to be done in the main GUI thread. You should study...

Can you look at what is in logcat for error messages?