I'm posting this to share the lessons I learned while working with
IntentService.
IntentService has a single constructor that takes a string argument
"name". The documentation has no description of what name is used for.
In looking at the sources, I found that its only use is in naming the
worker thread for the IntentService. This thread is named IntentService
[name].
I initially implemented the constructor of the derived class to also
take a String argument and passed it along to the derived class. This
is wrong. This will cause the startService() call to generated a
java.lang.InstantiationException in the application containing the
service i.e. you don't get the exception in the application calling
startService(). A clue to the actual problem is a little further up in
the logs:"newInstance failed: no <init>()"
The derived class must have a Default constructor and that constructor
must call super() passing a string for the name component of the
worker thread name.
public class MyIntentService extends IntentService
{
public MyIntentService() {
super("MyIntentService");
}
@Override
protected void onHandleIntent(Intent intent)
{
// Handle events on worker thread here
}
}
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