![]() ![]() At compile time it expands to the tuple that we saw before, guaranteeing that the calculation and the result match. The stringify macro only takes the calculation as a single parameter. This macro also happens to be the one that is included in Xcode's template. Luckily, with Swift 5.9 we can define a stringify macro to simplify this. Notice how this is repetitive, redundant, and even error prone because nobody can guarantee that the result actually matches the calculation. We have the result as an integer on the left and the calculation as a string literal on the right side of the tuple. ![]() Here we have a list of calculations that first-year students can use to practice their arithmetic skills. Having seen our first macro in Xcode, we will explore more roles in which you can use macros and I will show you how I used macros to simplify the codebase of an app I am currently working on.įinally, I will show you how macros can communicate errors or warnings back to the compiler if they are not applicable in a certain context. I will start off by giving you a short overview of how macros work.Īfterwards, we will jump straight into Xcode and see how you can create your first macro. My name is Alex Hoppen, and today I am going to show you how you can write your own macros. Swift macros allow you to generate that repetitive code at compile time, making your app's codebases more expressive and easier to read. The automatic switch from the standard video to macro video isn’t as noticable as it is for photosĪpple notes the ultra wide lens will auto-focus when taking macro shots and footage but you can still tap the screen to manually set focus and exposure.♪ ♪ Alex Hoppen: Who likes writing repetitive boilerplate code? Nobody does! And that's why in Swift 5.9 we are introducing Swift macros.Follow the same steps to shoot iPhone 13 macro videos.Going between the standard photo mode and macro is automatic for now, but Apple will change that in the future with a Settings toggle.You’ll notice a blur/frame change effect as you enter macro photo mode.Bring the camera close to your subject – as close as 2 cm (0.79-inches).Make sure Photo is selected as the camera mode just above the shutter button on your screen.Open the Camera app (the native Camera app).How to take iPhone 13 Pro macro photos and videos Related: iPhone 13 Diary: Putting macro photography capabilities to the test. ![]() Macro also extends to video including Slo-mo and Time-lapse. Users can capture sharp, stunning images where objects appear larger than life, magnifying subjects with a minimum focus distance of 2 centimeters. The new lens design, autofocus capability for the first time in the Ultra Wide on iPhone, and advanced software also unlock something never before possible on iPhone: macro photography. The 13 Pro/Max ultra wide lens has an f/1.8 aperture with 120-degree field of view. With the ultra wide camera on the iPhone 13 Pro and Pro Max, Apple has brought some impressive macro photo and video capabilities. And coming soon with iOS 15.2 (still in beta) will be a dedicated toggle to quickly turn the feature on and off inside the Camera app. Update: You can manually turn off auto macro shots by heading to Settings > Camera > Auto Macro with iOS 15.1 or later. Let’s look at how to take iPhone 13 Pro macro photos and videos. The iPhone 13 Pro devices come with some great new camera capabilities with one of them being powerful performance for up-close shots and footage. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |