The completionTarget is the object whose selector should be called after the image has been written to the camera roll. Uploading a file to the Cloud server can be a long-running operation depending on the user’s network condition (and the file size). You will notice that the 2nd and 3rd parameters are what we need in order to detect when an image is successfully written to the camera roll. Singleton Nature UIViewController Lifecycle. If we take a look at the function declaration: func UIImageWriteToSavedPhotosAlbum(_ image: UIImage, This single line of code will trigger a background operation that writes a given image to the camera roll. Writing an image to the camera roll only required 1 line of code: UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil) Swift version: 5. With that out of the way, it’s time to write some images to the camera roll.ĭetecting Camera Roll Write Operation Completion The app's ist must contain an NSPhotoLibraryAddUsageDescription key with a string value explaining to the user how the app uses this data. In this tutorial we will learn how to share images, text and a URL. Access & share your files, calendars, contacts, mail & more from any device, on your terms. Share text or images with UIActivityViewController in Swift Darren 5 min read UIActivityViewController makes sharing easy and it allows one to share many different types content including, text, images, URL's, Audio and more. This app has crashed because it attempted to access privacy-sensitive data without a usage description. What is Nextcloud A safe home for all your data. Our app will crash with the following error message if we try to access the camera roll without the user’s permission. Adding NSPhotoLibraryAddUsageDescription key into “ist” As you might have expected, we need to add the NSPhotoLibraryAddUsageDescription key into “ist” and provide a reason why we want to access the camera roll. Share and Download files from application in Swift Save In today’s blog, we will learn how to Share and Download files from application in Swift. Communicate to them when they need to update the version of their app with KickIt and keep them safe and up-to-date.īefore we can start writing images to the camera roll, it is mandatory to obtain a write permission from the users. Mobile app users deserve the best experience. KickIt - Mobile app update management made simple
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