Instance of a dictionary?

Hi!

I am blocked on the meaning of the following line and I would like if you could help me:

mDrawables[:Indicators].onSettingsChanged();

Considering that:

private var mDrawables = {};

mDrawables[:Indicators] = View.findDrawableById("Indicators");

mDrawables is a dictionary, isn´t it? :indicators is like giving an index in the dictionary, isnt't it? But then, why I can apply a function on that?

function onSettingsChanged() is a normal function as follows:

function onSettingsChanged() {

mSettingsChangedSinceLastDraw = true;

updateNormalFont();

// Themes: explicitly set *Colour properties that have no corresponding (user-facing) setting.

updateThemeColours();

// Update hours/minutes colours after theme colours have been set.

updateHoursMinutesColours();

if (CrystalApp has :checkPendingWebRequests) { // checkPendingWebRequests() can be excluded to save memory.

App.getApp().checkPendingWebRequests();

}

This are the files just in case more context is needed: https://github.com/warmsound/crystal-face

0 flowstate over 2 years ago

Okay, I'll post some of the relevant code and explain what it does:

[https://github.com/warmsound/crystal-face/blob/master/source/CrystalView.mc#L134]

mDrawables[:Indicators] = View.findDrawableById("Indicators");

mDrawables[:Indicators] is assigned to the drawable with ID "Indicators". If we look at any one of the layout.xml files, we find:

https://github.com/warmsound/crystal-face/blob/master/resources/layouts/layout.xml#L41

<drawable id="Indicators" class="Indicators">

So the drawable with ID "Indicators" is an instance of the "Indicators" class. Looking at the Indicators class, we see that it has an onSettingsChanged() method. (Same as the other drawables.)

[https://github.com/warmsound/crystal-face/blob/master/source/Indicators.mc#L38]

function onSettingsChanged() {
mIndicator1Type = App.getApp().getProperty("Indicator1Type");
mIndicator2Type = App.getApp().getProperty("Indicator2Type");
mIndicator3Type = App.getApp().getProperty("Indicator3Type");
}

What's happening here is that each value in the mDrawables dictionary is a reference to a drawable. And each drawable is an instance of a (custom) class which has an onSettingsChanged() method.

To answer your question fully, a dictionary value can be any kind of Monkey C value, and in this case, the values stored in mDrawables are instances of custom classes which each extend Drawable and implement an onSettingsChanged() method.

0 CCS over 2 years ago in reply to flowstate

Thank you a lot for your answer. Really clear. It is a nice way to load different classes in fonction of the resource used.

Thanks!