swift note taking app solution viewcontroller

SWIFT NOTE TAKING APP SOLUTION VIEWCONTROLLER HOW TO
SWIFT NOTE TAKING APP SOLUTION VIEWCONTROLLER CODE

The following images illustrate a sample of it: As you may presume, it’s going to be a navigation-based application. Our goal is not to build a complete contacts app, just an app good enough of being capable to try Handoff. Of course, this is a demo app, therefore our app will support adding only the following basic information:Īlso, we are not going to implement any contact editing functionality. The sample app of this tutorial is going to be a simple contacts app with three distinct features:

SWIFT NOTE TAKING APP SOLUTION VIEWCONTROLLER HOW TO

In this tutorial we’ll stick to the second case in order to see how to implement the Handoff capability directly. Handoff is supported by both document-based and non document-based applications. I strongly encourage you to take the time and study the official Apple documentation, or watch the session video #219 of the WWDC 2014, so you get a deeper understanding on what is coming next. It doesn’t matter if they’re iPhones, iPads, or combination of them.Īll the above consist of the basic knowledge you should have regarding the Handoff technology. Note that the Handoff can be tested in real devices only, and you’ll need at least two of them running iOS 8.0 or newer.

However, in this tutorial we won’t deal with streams at all, we’ll just suffice to the basic Handoff functionality so we learn how can be implemented. Handoff supports streaming as well, and that’s the way that should be followed when relatively big amount of data is needed to be transferred. Generally, the data that is transferred from device to device using Handoff must be small in size, so the user can keep working to the continuing app almost instantly.

plist and the code, and we’ll properly name the ones that we’re about to support. We’ll see later how activity types are used in both the. Apple recommends to use a reverse DNS style for the activity type, such as: .view.

SWIFT NOTE TAKING APP SOLUTION VIEWCONTROLLER CODE

The same activity types are used in code as well when implementing the handoff feature. plist file of the app, so it’s known to the app what activities will be supported. Before doing any implementation regarding Handoff, new entries with the activity types must be added to the. We’ll see all of the above in the sample app of the today’s tutorial.Įach user activity is identified by an activity type, which is a string describing the activity.

Continuing a user activity to another device.

Updating an existing user activity with new data when is needed.

Creating a new user activity that’s about to be continued to another device.

There are three interactions that take place when working with Handoff. Generally an app should support as many activities as the tasks that should be continued are, as long as they distinct rationally. There are no specific rules regarding the amount of user activities. For example, to a note taking app, composing the note can be one activity, and previewing a note could be another. In this case the apps must be signed with the same team identifier (Team ID) in Xcode.Īn application can have as many user activities as necessary, so when continuing to another device there’s no interruption or data loss. The second prerequisite is useful in the case where two or more different apps must be able to hand off and continue the same user activities. Actually, by using the same iCloud account to all devices if possible for user activities to be continued uninterrupted when switching between them (devices) and to be associated with the same user. Further than that, there are two prerequisites: The first is that a valid iCloud account is needed, and users should be logged in to every device that’s about to be used. Also, all devices must be physically near so the Handoff can work.

Programmatically, the class representing an activity is called NSUserActivity, and we’ll work a lot with it. The basic idea behind Handoff is that whatever a user does to an app consists of an activity, and such an activity can be associated with a specific user in more than one device.

Swift note taking app solution viewcontroller