Inspired by Collin Donahue-Oponski initial idea shown in this gist and the fact that there was no implementation available for the current Ionic framework to make certain list headers sticky, I gave it a shot and created the small directive ion-affix.
Once installed via
it has to be included in your
npm install --save ion-affix
To make any
ion-card) sticky you simply apply the
ion-affix directive to it and pass a reference to the parent
ion-content to it: