This is a fork of @mshanemc 's original lightning sharing component. This is a HEAVILY modified version designed to work better with Salesforce1 mobile and provide better code compartimentization.

Lightning Components Apex to implement adhoc sharing in Lightning Experience Lightning Components + Apex to implement adhoc sharing in Lightning Experience

Clone the project and install the components and apex classes into your org.

Create a lightning quick action on the object you want to share and give it a height of 500px. Place it on the appropriate page layouts under Salesforce1 and Lightning Experience actions.

The component will now be ready to use.