epub |eng | 2020-03-02 | Author:Ralph Kuepper [Ralph Kuepper]

return user.update(on: request.db) "Doesn't this last line return EventLoopFuture<User> ?", you might wonder. That is correct; we are not entirely done yet. We need to map this to the correct ...

epub, azw3 |eng | | Author:Daniel Devesa Derksen-Staats

And new in iOS 13, you can create actions that take an action handler instead of a target and selector. So you could write something like this:var userCustomAction = UIAccessibilityCustomAction(name: ...

epub |eng | | Author:Wallace Wang

11.Release the Control key and the left mouse button. A popup window appears. 12.Click in the Name text field, type buttonTapped, click in the Type popup menu and choose UIButton, ...

epub |eng | | Author:Rob Whitaker

Increment and Decrement Some assistive technologies change how we interact with elements on the screen. VoiceOver and Switch Control are two examples; we’ll cover more of how and why they ...

epub |eng | 2020-04-07 | Author:Simone Alessandria [Simone Alessandria]

Solution: In the itemBuilder of the ListView.builder, in the build() method of the _ItemsScreenState class in the items_screen.dart file, add a Dismissible widget, as follows: itemBuilder: (BuildContext context, int index) ...

epub |eng | | Author:Jesse Feiler

The code is shown in Listing 7-2.class DocumentViewController: UIViewController { @IBOutlet weak var documentNameLabel: UILabel! var document: UIDocument? override func viewWillAppear(_ animated: Bool) { super.viewWillAppear(animated) // Access the document document?.open(completionHandler: ...

epub |eng | | Author:Megan Holstein

How to Get Started Here is a partial list of app-building programs, so you can get started building your own app.GameSalad ($299/yr): GameSalad is a fantastic alternative for people who ...

epub |eng | 2019-12-16 | Author:Rich Trouton & Charles Edge [Rich Trouton]

epub |eng | | Author:Yanis Zafirópulos

Let’s see...print("Item at index 1: \(item)") How It Works To get a particular element at a specific index of a tuple, we may use its index.Item at index 1: two ...

epub |eng | 2020-01-23 | Author:Ahmad Sahar

epub |eng | | Author:Rap Payne

Stack navigation If you’re an experienced developer, you’re familiar with queues and stacks. If not, let me explain briefly. Let’s say you work in a kitchen. As plates are cleaned, ...

epub |eng | | Author:Wallace Wang

Now we need to get the specific location that the user pinched on the screen:let location = sender.location(in: areaPinched) Finally, we need to use the hitTest method to determine if ...

azw3 |eng | 2015-12-14 | Author:Erica Sadun [Sadun, Erica]

Declaring Protocols Every protocol has a name that describes the type-specific qualities the protocol establishes. When establishing protocols, choose capitalized names that describe the role conforming types will fulfill. For ...

epub |eng | 2017-12-19 | Author:Vandad Nahavandipoor

See Also Recipe 9.1 9.6 Customizing Your Document Browser Problem You want to adjust the look and feel of the document browser of type UIDocumentBrowserViewController so that it matches your ...

azw3 |eng | 2016-12-05 | Author:Nick Smith [Smith, Nick]

For example, when in the running application you select View 2, the events will fire like this: TabViewController - willSelect tabViewItem View Controller - viewWillAppear TabViewController - didSelect tabViewItem View ...