Conditionals are the most complicated and dynamic way to create a watch face.
They take this form:
$ EQUALITY TEST ? EXPRESSION IF TEST IS TRUE : EXPRESSION IF TEST IS FALSE $
The first space is for our equality test, which is going to equal true or false. There are five types of operators available:
|OPERATOR||DEFINITION||EXAMPLE EXPRESSION||EXAMPLE OUTPUT|
|= or ==||Is equal to||(1=1) or (1==1)||true|
|!=||Is not equal to||(1!=0)||true|
|>||Is greater than||(2>1)||true|
|<||Is less than||(0<1)||true|
|>=||Is greater than or equal to||(2>=1)||true|
|<=||Is less than or equal to||(0<=1)||true|
Now let's make our own. We'll fill it in step-by-step. Let's start with a blank slate. We'll develop a conditional to use for the Transparency attribute. All of the those dollar signs and question marks look confusing at first, but you'll get used to them (if you have a programming background, you probably already recognize the ternary operator!):
Now let's fill in that spot with a simple example. We're going to make an expression that will make a layer appear only before noon. This expression would be added to the opacity attribute of the layer. We'll use the #Da# and check if it's "AM":
Next, we'll fill in the EXPRESSION IF TRUE part of the conditional. When #Da# == "AM" is true, we want our layer to appear, so we'll want the opacity to be 100:
Lastly, we'll fill in the EXPRESSION IF FALSE part of the conditional. When #Da# == "AM" is false, we want our layer to disppear, so we'll want the opacity to be 0:
That's it! You just created your first conditional.
Now some advice:
Don't use " marks before and after texts used in conditions.
Don't use spaces (" ") before and after part of conditions (wrong:
$ #Da# == AM ? 100 : 0 $ right: