Android Question Some questions about Classes

[DonManfred]

Hallo,

i want to write a wrapper for an API and i thinked over to use a Class for it to have the possibilities of properties and getters/setters... But i´m not sure whether it is possible with a class so i have some simple questions...

1. To save/restore data i want to use keyvaluestore inside this Class. Is that possible?
2. To update/retrieve data from API-Server i need to use for example erels multipartpost (uses httpclient) and i have to; get a call of a sub. Doing thing i have to do with multipartpost or even httputils2.
Can i use multipartpost (httpclient) and httputils inside a class?
3. In addition to 2. How would a typical structure (subs and so on) looks like? I need to give back the caller a result. I thought over to call a done-sub or something after i communicate with the apiserver...

Any hints or simple class-examples are appreciated ;-)

 

[Erel]

1. Yes. Note that the class itself cannot be automatically serialized.
2. Yes.
3. You can raise an event from the class. See the "custom views" classes like this one for example: http://www.b4x.com/android/forum/threads/27548/#content

 

[DonManfred]

Thank you very much for your answer!
Great... Seems to be "doable" for me.

A - i hope - last question: When write Getter and Setter; i´m not limited to simple values like string, int, double and so on, right?
I also can use LISTs, MAPs or Custom Types to Get/Set a property which is a LIST, MAP or customtype?

 

[Erel]

I also can use LISTs, MAPs or Custom Types to Get/Set a property which is a LIST, MAP or customtype?

Yes.

 

[DonManfred]

Thanx again!

 

[DonManfred]

I have done beginning with the class.
But when i look into this tooltip it suggest me that there is a return value which is a string.
But the sub don´t have an returnvalue defined!?
What i am doing wrong? I want the sub show in tooltip without the " AS String" in first line.

Thanx for any hint ;-)

 

[Erel]

All subs can return a value. The default type is string, so it shows in the tooltip. You cannot remove it.

 

[DonManfred]

Ahh, ok. I was just wondering. As background: in Delphi we have PROCEDUREs (which cannot have a Returnvalue) and FUNCTIONs (which MUST set a return value)...

 

[LucaMs]

I like that they are all functions.

When my routines are functions in the strict sense of the term, I use a prefix in their name: "fn"