Java Eclipse如何在调试器中查看活动的侦听器

Question

How can I see what listeners are active whilst debugging?

I can see where I "setListener" as I step through - but as there is never a callback I am wondering if the listener is actually still alive.

Answer 1

You can point a breakpoint inside a listener code, so you can see when it has been invoked. Does it help you?

Answer 2

1. Mark a breakpoint at the listener variable you want to follow
2. When the breakpoint is hit, see the Variables Pane (Show -> View -> Variables) and find in there the name of the listener variable you are following
3. Right click in the variable and choose "Open Actual Type"

This open the code that your listener variable points at the next debug step.

=)