#New mac os 2017 apple update
#New mac os 2017 apple full

The implementation of the file URL method is very similar. We look at the model object for the item identifier, we check the type that's being requested, and then we produce data accordingly. The implementation of the data method might look as follows. The file URL method takes the same arguments and additionally Booleans specifying whether an in-place file should be provided. If they ask for data or they ask for a type or you could provide data, the data method gets called and takes a searchable index, an item identifier, and a type identifier and you're expected to return the data object. Depending on what the receiving app requested one out of two methods will get called.

When the user drops items, your extension will get called and in the rare case that your app happens to be running this may be your app's index delegate instead. And we can also convert the image so declared it can provide plaintext as data. In this case, we already have an image file so we'll provide that for the file type identifier. So how is it used? You create the CSSearchableItemAttributeSet as usual. As for the designing provider, you should specify the highest fidelity representation first. You can promise a data representation, a file representation which will get copied or an in-place file representation if your data is saved copying. Now how do we let Spotlight know what can be provided? For that there are three new attributes in CSSearchableAttributeSet. As an example, a note taking app might have its own UTI type as a type of its contents, but it might advertise that it can provide RTF, HTML and plaintext when an item is dropped. You can define new types for your application, but for Drag-and-Drop we want you to declare types that are well-known so that other applications can receive the data that you have to offer. You can find great information about uniform type identifiers on. These provide a uniform way of describing types in our hierarchy going from the most to the least specific. Your first task is deciding what drag types to support.ĭrag types use uniform type identifiers or UTI types which are the of the system. This might look complicated, but there's actually not that much that you have to do. Of course, the receiving app it can take the content. So, then you provide the data and it gets passed to Spotlight. Spotlight will then call your application or your app extension with the type and item information. The app picks the type it wants and the request goes back to Spotlight. The user drags the item in Spotlight and Spotlight creates a promise that gets sent to the drag receiver. Your app quits and sometime later the user runs a query in Spotlight. Now you may wonder what's actually going on behind the scenes.įirst your app indexes items and each item carries a promise. This is an awesome accelerator letting users get to the content incredibly quickly. We start the drag in Spotlight and then we hit the Home button to go to SpringBoard where we can enter notes and we can drop the image. You make the promise of indexing time and then you fulfill it when the user drops a Core Spotlight item later. An important new feature in iOS 11 is Drag-and-Drop and of course, Drag-and-Drop is very important to the Mac as well.ĭrag-and-Drop with Core Spotlight is built on the concept of promises. For those of you who are new to Core Spotlight we'll review the basic concepts later in the session.

It's not for items that the user monitors in the finder, for that the classic Spotlight API still exists and still works great.įinally, the Core Spotlight API is per user, so there's no sharing.

#New mac os 2017 apple full

Core Spotlight is great for databases and shoeboxes where your app has full control over the contents.

It's already used by Notes and Safari and because it's cross-platform CoreData Spotlight support has been reimplemented using Core Spotlight and is now available for both iOS and macOS.

Core Spotlight on macOS is the exact same API as in iOS so it's great for cross-platform apps.

#New mac os 2017 apple update

Today, we'll cover some new APIs, Core Spotlight on macOS, Drag-and-Drop, Quick Look previews, and then we'll give an update on ranking before finishing with a review of indexing and search. I'm John Hornkvist, Senior Manager for Core Spotlight and joining me today will be my colleague Lyn Fong.