Java Question Child Classes possible?

[barx]

Are child classes possible / usable with b4a?

Here is what I'm trying to achieve.

Dim DL as WearableDataLayer

    DL.Initialize("DL")
    DL.Connect
    ......
    ......

    DL.Message.Send(...........) <----

So I want a Message class inside the DataLayer class so that it's methods are accessed with DataLayer.Message.xxxxxx

Is this possible?

I tried the follow setup (Simplified for ease)

@ShortName("WearableDataLayer")
Public Class WearableDataLayer {

    Public void Initialize() {
        ....
    }

    Public Class Message {

        Public void Send() {
            ....
        }
    }
}

This doesn't show anything in B4A for the Message class. If I add a @ShortName to the Message Class it is brought to B4A as it's own object to declare.

The reason I want this is 90% aesthetics, but there is a little functional reasoning as the message utilizes a GoogleApiClient that is previous connected in the DataLayer...

Any Ideas?

Thanks

 

[LucaMs]

You should add an instance of Message into the WearableDataLayer class, not the class itself.

 

[Erel]

It is possible. You don't need to add ShortName in this case.

It should work automatically assuming that the class is not hidden.

Note that if the inner class doesn't require a reference to the outer class then it is better to make it a static class.

 

[barx]

It doesn't seem to be working as you hoped Erel.

Inside my main class I have

@Events(values={"MessageReceived(SourceNodeID As String, RequestID As String, Path As String, Data As String)"})
    public static class Message extends AbsObjectWrapper<MessageApi> implements MessageApi.MessageListener{
    ....
}

but no .Message. shows in B4A.

I will try by making a instance of it like LucaMs states

 

[Erel]

I think that you are confusing a class with a class instance.

If the outer class will have a field that holds an instance of Message (named Message) then it will work.

 

[barx]

I think that you are confusing a class with a class instance.

If the outer class will have a field that holds an instance of Message (named Message) then it will work.

It wouldn't be the first time I got confused, nor the first time I used the wrong terminology.....

 

[LucaMs]

It wouldn't be the first time I got confused, nor the first time I used the wrong terminology.....

You would not be the first ... I would win the competition