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Use ShareLink for Sharing Knowledge Like Textual content and Pictures


In iOS 16, SwiftUI comes with a brand new view referred to as ShareLink. When customers faucet on the share hyperlink, it presents a share sheet for customers to share content material to different functions or copy the info for later use.

The ShareLink view is designed to share any kinds of knowledge. On this tutorial, we’ll present you find out how to use ShareLink to let customers share textual content, URL, and pictures.

Fundamental Utilization of ShareLink

Let’s start with an instance. To create a share hyperlink for sharing a URL, you’ll be able to write the code like this:

SwiftUI mechanically renders a Share button with a small icon.

sharelink-basic-for-swiftui

When tapped, iOS brings up a share sheet for customers to carry out additional actions equivalent to copy and including the hyperlink to Reminders.

swiftui-share-sheet

To share textual content, as a substitute of URL, you’ll be able to merely cross the a string to the merchandise parameter.

Customizing the Look of Share Hyperlink

To customise the looks of the hyperlink, you’ll be able to present the view content material within the closure like this:

On this case, SwiftUI solely shows the share icon for the hyperlink.

swiftui-tap-and-share

Alternatively, you’ll be able to current a label with a system picture or customized picture:

When initializing the ShareLink occasion, you’ll be able to embrace two further parameters to supply additional details about the shared merchandise:

The topic parameter helps you to embrace a title in regards to the URL or any merchandise to share. The message parameter permits you to specify the outline of the merchandise. Relying on the actions the person shares to, iOS will current the topic or message or each. Say, in the event you add the URL to Reminders, the Reminders app shows the preset message.

swiftui-sharelink-reminders

Sharing Photographs

Apart from URLs, you’ll be able to share photos utilizing ShareLink. Here’s a pattern code snippet:

For the merchandise parameter, you specify the picture to share. And, you present a preview of the picture by passing an occasion of SharePreview. Within the preview, you specify the title of the picture and the thumbnail. Whenever you faucet the Share button, iOS brings up a share sheet with the picture preview.

swiftui-sharelink-image

Conforming to Transferable

Apart from URLs, the merchandise parameter accepts any objects that conforms to the Transferable protocol. In iOS, the next sorts are the usual Transferable sorts:

  • String
  • Knowledge
  • URL
  • Attributed String
  • Picture

Transferable is a protocol that describes how a kind interacts with transport APIs equivalent to drag and drop or copy and paste.

So what you probably have a customized object, how are you going to make it transferable? Let’s say, you create the next Photograph construction:

To let ShareLink share this object, it’s a must to undertake the Transferable protocol for Photograph and implement the transferRepresentation property:

There are a selection of Switch Representations together with ProxyRepresentation, CodableRepresentation, DataRepresentation, and FileRepresentation. Within the code above, we use the ProxyRepresentation which is a switch illustration that makes use of one other kind’s switch illustration as its personal. Right here, we use the Picture‘s built-in Transferable conformance.

swiftui-image-transferable

Since Photograph now conforms to Transferable, you’ll be able to cross the Photograph occasion to ShareLink:

When customers faucet the Share button, the app brings up the share sheet for sharing the picture.

What’s Subsequent

This tutorial reveals you find out how to use ShareLink for sharing textual content, URL, and pictures. Actually, this new view permits you to share any kinds of knowledge so long as the sort conforms to the Transferable protocol.

For customized sorts, you undertake the protocol and supply a switch illustration through the use of one of many built-in TransferRepresentation sorts. We briefly focus on the ProxyRepresentation kind. If you have to share a file between functions, you need to use the FileRepresentation kind. In later tutorials, we’ll focus on extra on that.



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