AEM 6 Touch UI Show/Hide Checkbox Component Extension - Extension to the standard checkbox component. It enables hiding/unhiding of other components based on the selection made in the checkbox.

.content.xml

<enable
    jcr:primaryType="nt:unstructured"
    sling:resourceType="granite/ui/components/foundation/form/checkbox"
    text="Enable"
    id="enable"
    value="true"
    name="./enable"
    class="cq-dialog-checkbox-showhide"
    cq-dialog-checkbox-showhide-target=".button-option-enable-showhide-target"/>
<deleteEnable
        jcr:primaryType="nt:unstructured"
        sling:resourceType="granite/ui/components/foundation/form/hidden"
        name="./enable@Delete"
        value="true"/>
<showHideContainer
        jcr:primaryType="nt:unstructured"
        sling:resourceType="granite/ui/components/foundation/container"
        class="hidden button-option-enable-showhide-target"
        showhidetargetvalue="true">
    <items jcr:primaryType="nt:unstructured">
        
        <!-- some components to show/hide -->
        
    </items>
</showHideContainer>

checkboxshowhide.js

/**
 * Extension to the standard checkbox component. It enables showing/hiding of other components based on the
 * selection made in the checkbox.
 *
 * How to use:
 *
 * - add the class cq-dialog-checkbox-showhide to the checkbox element
 * - add the data attribute cq-dialog-checkbox-showhide-target to the checkbox element, value should be the
 *   selector, usually a specific class name, to find all possible target elements that can be shown/hidden.
 * - add the target class to each target component that can be shown/hidden
 * - add the class hidden to each target component to make them initially hidden
 * - add the attribute showhidetargetvalue to each target component, the value should equal the value of the select
 *   option that will unhide this element.  Leave this value as an empty string to toggle the target component on
 *   when the checkbox is unchecked.
 */
(function(document, $) {
    "use strict";

    // when dialog gets injected
    $(document).on("foundation-contentloaded", function(e) {
        // if there is already an inital value make sure the according target element becomes visible
        $(".cq-dialog-checkbox-showhide").each( function() {
            showHide($(this));
        });

    });

    $(document).on("change", ".cq-dialog-checkbox-showhide", function(e) {
        showHide($(this));
    });

    function showHide(el){

        // get the selector to find the target elements. its stored as data-.. attribute
        var target = el.data("cqDialogCheckboxShowhideTarget");

        // is checkbox checked?
        var checked = el.prop('checked');

        // get the selected value
        // if checkbox is not checked, we set the value to empty string
        var value = checked ? el.val() : '';

        // make sure all unselected target elements are hidden.
        $(target).not(".hide").addClass("hide");

        // unhide the target element that contains the selected value as data-showhidetargetvalue attribute
        $(target).filter("[data-showhidetargetvalue='" + value + "']").removeClass("hide");

   }

})(document,Granite.$);