Xcode empty application root view controller

To load this controller in your application, and demonstrate the simple navigation, create a new instance of CustomViewController. Create a new navigation controller, pass in your view controller instance and set the new navigation controller to the window's RootViewController in the AppDelegate as before: Now when the application loads, the CustomViewController is loaded inside a navigation controller: Clicking the button, will push a new View Controller onto the navigation stack: In the example above, we started to create a user interface in code by adding a button to the View Controller.

Affichages supplémentaires, telles que des étiquettes, des boutons, des curseurs, etc. Additional views, such as labels, buttons, sliders, etc. For example, let's edit the CustomViewController to create a login screen where the user can enter a username and password.

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The screen will consist of two text fields and a button. First, remove the button and event handler that was added in the Initializing the View section. Add a control for the username by creating and initializing a UITextField and then adding it to the view hierarchy, as shown below: Lorsque nous créons le UITextField , nous définissons le Frame propriété à définir son emplacement et sa taille. Après avoir défini le Frame , ainsi que quelques autres propriétés, nous appelons View.

After setting the Frame along with a couple other properties, we call View. A subview is added with a z-order that is higher than its parent view, so it appears in front of the parent view on the screen. The application with the UITextField included is shown below: Nous pouvons ajouter un UITextField le mot de passe de la même manière, seulement cette fois-ci, nous définissons le SecureTextEntry propriété sur true, comme indiqué ci-dessous: We can add a UITextField for the password in a similar fashion, only this time we set the SecureTextEntry property to true, as shown below: Next, we'll add a button so the user can submit the username and password.

The button is added to the view hierarchy like any other control, by passing it as an argument to the parent view's AddSubview method again.

The following code adds the button and registers an event handler for the TouchUpInside event: With this in place, the login screen now appears as shown below: Unlike in previous versions of iOS, the default button background is transparent. Modification du bouton BackgroundColor propriété change tout cela: Ainsi, un bouton carré plutôt que classique arrondi à bord de bouton. This will result in a square button rather than the typical rounded edged button. To obtain the rounded edge, use the following snippet: Avec ces modifications, la vue ressemblera à ceci: With these changes, the view will look like this: When a button is clicked, your users will expect something to happen.

Par exemple, une alerte est indiquée ou navigation est effectuée à un autre écran. For example, an alert is shown or navigation is performed to another screen. Let's add some code to push a second view controller onto the navigation stack. First, create the second view controller: Ensuite, ajoutez la fonctionnalité à la TouchUpInside événement: Then, add the functionality to the TouchUpInside event: Le volet de navigation est illustrée ci-dessous: The navigation is illustrated below: Notice that by default, when you use a Navigation Controller, iOS gives the application a navigation bar and a back button to allow you to move back through the stack.

It is possible to iterate through the subview hierarchy and pick out any particular view. For example, to find each UIButton and give that button a different BackgroundColor , the following snippet can be used. This, however will not work if the view being iterated for is a UIView as all views will come back as being a UIView as the objects added to the parent view themselves inherit UIView.

If the user rotates the device to landscape, the controls do not resize appropriately, as the following screenshot illustrates: La première consiste à résoudre ce problème en définissant le AutoresizingMask propriété sur chaque affichage. One way to fix this is by setting the AutoresizingMask property on each view.

Dans ce cas nous voulons les contrôles à étendre horizontalement, donc nous affectons chacun AutoresizingMask.

xcode empty application root view controller

In this case we want the controls to stretch horizontally, so we would set each AutoresizingMask. The following example is for usernameField , but the same would need to be applied to each gadget in the view hierarchy. Now when we rotate the device or simulator, everything stretches to fill the additional space, as shown below: In addition to using controls that are part of UIKit, custom views can also be used.

Une vue personnalisée peut être créée en héritant de UIView et en remplaçant Draw. A custom view can be created by inheriting from UIView and overriding Draw. Let's create a custom view and add it to the view hierarchy to demonstrate. La première chose que nous devons faire est créer une classe pour la vue personnalisée. The first thing we need to do is create a class for the custom view. Nous aurons également besoin du System.

Drawing espace de noms. We'll also need the System. Drawing namespace as well. Les différents autres System.

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The other various System. La classe doit ressembler à ceci: The class should look like this: Every UIView has a Draw method that is called by the system when it needs to be drawn. Draw ne doit jamais être appelée directement. Draw should never be called directly. It is called by the system during run loop processing.

The first time through the run loop after a view is added to the view hierarchy, its Draw method is called. We can add drawing code to our view by adding such code inside the overridden Draw method as shown below: Par exemple, nous pouvons définir le BackgroundColor dans le constructeur: For example, we can set the BackgroundColor in the constructor: To use the CircleView we just created, we can either add it as a subview to the view hierarchy in an existing controller, as we did with the UILabels and UIButton earlier, or we can load it as the view of a new controller.

Nous allons suivre ce dernier. Let's do the latter. This is an appropriate place to create a view and assign it to the controller's View property.

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First, we need a controller, so create a new empty class named CircleController. Xcode6 a supprimé le modèle d' Empty Application lors de la création d'un nouveau projet. Comment pouvons-nous créer une application vide sans Storyboard dans Xcode6 et au-dessus, comme dans les versions précédentes? D'autres ont déjà expliqué comment se débarrasser du storyboard, alors je vais sauter sur celui-là. C'est ainsi que je préfère le faire dans mon code avec moins de chaînage optionnel écrit dans Swift 3.

La réponse d'Akhils est totalement correcte. Pour ceux d'entre nous utilisant Swift, ce serait comme ceci:.

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J'ai le modèle original d'application vide qui a été utilisé dans les versions de Xcode avant Xcode 6. Je l'ai téléchargé here. Vous pouvez le télécharger et le coller manuellement dans le répertoire des modèles Xcode ou l'installer en utilisant le gestionnaire de paquets pour Xcode, Alcatraz.

Il suffit de rechercher Xcode Empty Application.

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Pour Xcode 8 et Swift 3.