Monkey C Questions

After reading the intro to Monkey C, There are some concepets I'm still not quite getting. for example

It says public variables are visible to other classes, but how do you access and modify them?

Say I declare a class variable under TigerView ( that extends Watch.UIView ) var testvariable; Then under function initialize() I give it a value

testvariable = 99; and then I System.Print (testvariable),Then change the variable and System.print(testvariable)

it shows correctly the value I originally set followed immediately by the new value;

If I go into another class like behaviourdelegate, How can I System.print the testvariable value from TigerView class?, and how can I modify the value of the variable ?

If I try to System print from behaviour delegate, it just returns a NULL response?

What is the meaning of the function invocation syntax, when sometimes it is written as DoSomething(), and other times it is DoSomething(somethingInHere).

EG onUpdate() vs onUpdate(dc) , or function initialize() { List variable values } or funciton initialize(variable in here){List variable values} are they the same? what difference does it make?

What is the difference between a function and a method.....I read that they were 1 and the same, then I read that functions can be used anywhere while programming but methods cannot?

Does the below thing mean that method will provide a value once methodName has first given it an answer?

And does that thing represent the ability for any Method in Toybox to give the callback? or is it only methods in the CLASS where the function has been written?

method(methodName) ⇒ `Toybox::Lang::Method`

What difference does it make, which Class I Declare my variables in? How do I choose which one is the right one to do it?

Thanks!

jim_m_58 over 5 years ago

Simple example of a global. Just define it outside of any class:

var myGlobal=0;


class A {
  inc() {
    myGlobal++;
  }
}

class B {
  prt() {
    System.println("myGlobal="+myGlobal);
  }
}

To speed up access you can use $.myGlobal so the code knows the scope and doesn't have to look for where myGlobal is defined..

you can use myGlobal from any mc in your project.

Nick over 5 years ago in reply to jim_m_58

Are you saying.... if my variable was declared globally as var testglobalvariable

Inside any class I can set / lookup/ modify the value using $.testglobalvariable effectively as the name of the variable?

if($.testglobalvariable != null )

{ do something;} ??

Is that generally what is done if you have a variable that you need different mc files to look at or modify?

Is there an alternative?

jim_m_58 over 5 years ago in reply to Nick

It's one way, but there are others.

Monkey C Questions

method(methodName) ⇒ Toybox::Lang::Method

method(methodName) ⇒ `Toybox::Lang::Method`