On/Off Checkbox to toggle filter value in views exposed filter
Not totally sure if this is the same as your requirements, but I managed to have one checkbox that only shows relevant content when checked.
Basically, I chose these options in filter options:


Expose this filter to visitors, to allow them to change it
Filter type to expose: Single filter
Is one of: (select the 'on' value)
Allow multiple selections (checked)
Limit list to selected items (checked)


Then in BEF:
6. Display exposed filter as: Checkboxes/radio buttons.

So, pretty much the only difference is the selection of "Limit list to selected items" in the filter options. See pic below. (And it doesn't use jquery, so should be more performant) Hope that helps.

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