Change spinner color

[augustosamame]

Hi. I would like to change the RMQ spinner animation's color.

I have suceeded in changing between the 3 standard iOS spinner styles by calling:

rmq.animations.start_spinner(style = UIActivityIndicatorViewStyleWhiteLarge, opts = {})

but I don't know how to change the color to a darker color (my background is white so gray and white spinners are not being seen)

According to the iOS documentation, you can change it by setting:

aiv.color = [UIColor greenColor]

where aiv is the UIActivityIndicator instance.

but I have no idea how to implement this in RMQ / Rubymotion

[markrickert]

Hey @augustosamame, the start_spinner and stop_spinner animations are built into RMQ as conveniences. I'd recommend creating your own view with the spinner in it so that you have an actual reference to the spinner object and then you can just do something like find(:my_spinner_object).get.color = UIColor.greenColor.

[augustosamame]

Thanks. I did the following and it's working perfectly:

class CustomSpinner

  def start_spinner(style = UIActivityIndicatorViewStyleGray, opts = {})
    spinner = self.window_spinner({ style: style }.merge(opts))
    spinner.startAnimating
  end

  def stop_spinner
    spinner = self.window_spinner
    spinner.stopAnimating
  end

  protected

    def window_spinner(opts={})
      @_window_spinner ||= begin
        parent = opts.fetch(:parent, app.window)
        UIActivityIndicatorView.alloc.initWithActivityIndicatorStyle(opts.fetch(:style, UIActivityIndicatorViewStyleGray)).tap do |o|
          o.hidesWhenStopped = true
          o.color = UIColor.blueColor
          o.transform = CGAffineTransformMakeScale(1.5, 1.5)
          o.center = opts.fetch(:center, app.window.center)
          o.layer.zPosition = NSIntegerMax
          parent.addSubview(o)
        end
      end
    end

end

Each time I need to show my custom (big and blue) spinner I just do:

custom_spinner = CustomSpinner.new
custom_spinner.start_spinner
.
.
.
custom_spinner.stop_spinner

[markrickert]

Awesome! Glad you were able to figure it out!