The phrase "a tap of a button" is correct and usable in written English.
It can be used to describe an action that is simple and requires minimal effort, often in the context of technology or automation.
Example: "With just a tap of a button, you can start the coffee maker in the morning."
Alternatives: "with a click of a button" or "with a push of a button."
But what no one anticipated was that, though it may be convenient to summon a motor vehicle to one's home with a tap of a button or to buy things online while wearing pyjamas and possibly drunk, it might also lead to where we are now: 6 November 2016.
With a tap of a button the iPad also doubles as a digital picture frame.
Customers will also be able to watch and manage recordings from a new "My Library" feature, and add new recordings with a tap of a button.
But most of all, they were using the one-touch podcast feature that lets anyone record and distribute audio with a tap of a button.
On the main screen, the app allows you to begin pairing your Apple Watch with your iPhone with a tap of a button.
Google, eBay, Walmart, and even startups have been experimenting with similar same day delivery services, all looking to tap into consumers' desire for conveniences on-call with a tap of a button.
Complex sign-ups are a matter of the past and the digital platforms for on-demand economy enable purchase on a tap of a single button, conveniently and 24/7 from any corner of the world.
With a tap of a "Wash Me Now!" button, a mobile washer (or Washér, as the company says) is deployed to the customer's location, like their home or office.
It's accessible via a tap of an actual physical button on the steering wheel, and works in 24 languages, speaking out results to help keep driver eyes on the road.
Tap to Translate allows users to be in, say, a chat app, and with the tap of a button see a translation pop up right within that app — without having to switch out of the app and into Google Translate.
The clever bit – oh you addictive game pushers, Ubisoft – is that there are frequent save points and a quick tap of a button will take you back to the last one without messing up your whole race.
