<aura:attribute name="viewAllItemsSwitch" type="String" description="View all on/off" default="off"/>
                      <div class="slds-form-element">
                    <label class="slds-checkbox_toggle slds-grid">
                      <span class="slds-form-element__label slds-m-bottom_none">View All Items</span>
                      <input aura:id="swtichAllItems" type="checkbox" label="View All Items" value="{!v.viewAllItemsSwitch}" aria-describedby="toggle-desc" name="viewAllItems"  onchange="{!c.switchSelectItemsView}" class="slds-p-around_large"/>

                      <span id="toggle-desc" class="slds-checkbox_faux_container" aria-live="assertive">
                        <span class="slds-checkbox_faux"></span>
                        <span class="slds-checkbox_on">All Items displayed</span>
                        <span class="slds-checkbox_off">Some Items displayed</span>
                      </span>
                    </label>
                  </div>

var toggleButton = component.find('swtichAllItems');
        if (toggleButton!=null)
            console.log(' value: '+toggleButton.get("v.value")+' checked: '+toggleButton.get("v.checked"));