B4J Question Sub name

[Daestrum]

How can I pass a sub name to a library. (like timer has a parameter for the sub name to be called)

I have tried listing all the declared methods in the module, but can't find the subs.

 

[Erel]

Are you writing a Java library or compiling your project to a library?

 

[Daestrum]

working on the jAnimation library, but want to be able to handle some events in the b4J program, such as eventhandlers for animations.

 

[Erel]

See the tutorials here: http://www.b4x.com/android/forum/forums/libraries-developers-questions.32/

you should use ba.raiseEventFromUI.

 

[Daestrum]

Thank you, for the speedy reply and a great programming tool.

 

[Daestrum]

I have read lots of the postings, and still I cannot grasp how it it supposed to work.
the sub in the B4J is checkPath
I have added BA ba; to code, but even calling ba.subExists("checkPath") generates a null pointer exception.
I have tried with "checkpath" "_checkpath" "_checkPath" all with the same result.

Stumped....

 

[agraham]

Sub names are lower-cased in htSubs. It should look something like this and just work.

B4J

Sub CheckPath
   ...
End Sub

Java

public void Something(BA ba, String subname) {
    if (ba.subExists(subname.toLowerCase()) {
        ...
    }

}

 

[Daestrum]

Thank you - didn't realize BA was a hidden parameter sent with the call.
Working now

Its amazing that a simple hint opens up your eyes to what to do.

So glad there are people on here who
a) know what they are doing
b) don't mind helping others.