How to Make Uploadable Pictures App Xcode
Calculation Images
To assistance you create and manage user interface elements for your app, Xcode offers several tools in addition to Interface Architect.
You create many images for your app, including icons, custom artwork, and the launch screens for different iOS devices. Some of these images are required for App Store submission. The asset catalog helps you manage them.
With the particle emitter editor, you tin can enhance your app by adding animation effects involving moving particles such as snow, sparks, and smoke. These effects are especially useful in games for iOS and Mac.
Adding App Icons and Launch Images
Create app icons for all of the operating system versions and devices that your app supports. iOS, watchOS, and OS X apps crave different types of icons. For whatever platform, add the required versions of your app icons to an asset catalog in Xcode.
For an iOS app, create an icon to exist displayed on a device's Home screen and in the App Store. Xcode doesn't include graphics tools for creating icons; utilise a graphic design app. Create several different versions of the icon for use in different situations. Your iOS app can include a small icon (to use when displaying search results) and a high-resolution icon (for devices with Retina displays). If your iOS app's target is universal, you too create versions of the icon for iPad and iPhone devices.
For a watchOS app, create icons for the home screen and any other interfaces y'all support such as notifications or long looks.
For an Bone X app, create a set of icons, consisting of pairs of icons (standard and high resolution) for each icon size, in pixels: 16 ten sixteen, 32 x 32, 128 ten 128, 256 x 256, and 512 10 512. The Finder uses these icons to stand for your app to the user.
Piece of work with Prototype Avails in the Asset Itemize
When you create a new project, Xcode creates an nugget catalog named Assets.xcassets. Select the asset catalog from the project navigator, and Xcode opens the catalog in the editor surface area.
The asset catalog contains a listing of image sets. Each image set, such equally AppIcon in the screenshot, contains all the versions of an prototype that are necessary to back up diverse devices and calibration factors. Yous can add icon images to your app by dragging them to the appropriate jail cell in the icon gear up grid.
You lot can create boosted image sets, such equally for buttons and other controls in your app. To create an empty image set or to import images into a new ready, click the Add together button (+) at the lesser of the image set listing. Y'all can add folders to organize the items in the catalog. Asset catalogs also back up other types such equally Sprite Atlases, Watch Complications, and Data files.
Create and Set the iOS Launch Screen File
A launch screen is displayed while your app is launching on an iOS device. The launch screen is displayed as before long equally the user taps your app icon, and it stays on the screen until your main interface is displayed. If your app is running on iOS 8 or later, the organisation uses a launch screen from a storyboard file and sizes it accordingly for the screen. For deployment targets prior to iOS viii, you add a set of launch images to an asset catalog for each of the possible screen sizes.
New projects are created with a launch screen storyboard file called LaunchScreen.storyboard. Alternatively, you lot can create a new launch screen file using File > New, selecting the User Interface category, and choosing a file blazon of Launch Screen. The launch screen uses size classes to conform to different screen sizes and orientations; encounter Building for Multiple Screen Sizes for more information.
Because the launch screen is shown earlier your app is running, you can but employ a single root view of type UIView or UIViewController. You are also limited to UIKit classes that do non require updating. For more data, see Creating a Launch Screen File .
To set the launch screen, open the General information tab for your target, and select the launch screen file from the pop-upwardly carte du jour.
For more assistance icons, launch images, and the asset catalog, encounter Xcode Assist.
Create and Set up iOS Launch Images for iOS 7 and Earlier
You can easily capture screenshots for launch images on a device. On the device, configure the screen the way you want it to announced. Then printing the device Lock and Home buttons simultaneously. Your screenshot is saved in the Saved Photos album in the Photos app. Copy the screenshot from the device to your Mac. You tin can use the iPhoto app, for example, to import the screenshot from the device and and then export the screenshot to your Mac equally a PNG file.
To set the screenshot as a launch image, select the asset itemize file in the projection navigator, and select the LaunchImage set. Drag your screenshot to the appropriate cell in the filigree.
For more than information on help icons, launch images, and the asset catalog, see Xcode Assistance.
Finding Help for Interface Builder
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Source: https://developer.apple.com/library/archive/documentation/ToolsLanguages/Conceptual/Xcode_Overview/AddingImages.html
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