TableScreen BackgroundColor stays white about promotion HOT 7 CLOSED

I think that the table is created somewhere after the on_load is called, I would use something like:

class MenuScreen < PM::TableScreen
  def view_will_appear(animated)
    super
    view.backgroundColor = :red.uicolor
  end
end

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Worked. Thanks!

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No worries, glad to help. Love PM :)

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I would recommend using will_appear rather than view_will_appear(animated) unless you need to know if the view will be animated. It gets called by view_will_appear anyway and doesn't need a call to super.

class MenuScreen < PM::TableScreen
  def will_appear
    view.backgroundColor = :red.uicolor
  end
end

on_load is actually not a very good event to be setting up your view on either Screen or TableScreen since it fires too early in the process.

Now, one thing to consider is that will_appear (and view_will_appear(anim)) will fire multiple times if you're flipping back and forth between it and another view. So if you want to avoid adding elements multiple times, set up something like this:

class MenuScreen < PM::TableScreen
  def will_appear
    @view_setup ||= begin
      view.backgroundColor = :red.uicolor
      true
    end
  end
end

This will only set up your view once.

We may want to build in a dedicated view setup method that gets called only once and allows you to create your views. Thoughts on that? Example:

class MenuScreen < PM::TableScreen
  def setup
    view.backgroundColor = :red.uicolor
  end
end

Open to other names, if this sounds like a good idea.

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Always a help @jamonholmgren, Thanks for this awesome gem!

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You bet -- glad it's been useful!

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I'm going to table the setup method for now. It's an interesting idea but does run the risk of making ProMotion too automagical. One of the guidelines I loosely follow with ProMotion is the idea of making iOS development more ruby-like while not completely reinventing the paradigm...hence the Screen -> UIViewController equivalence, on_load roughly like viewDidLoad, etc.

But I'm open to the setup method if it would be useful and not too confusing to beginners.

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