![]() ![]() With that out of the way, let's dive right in! Understanding the example we'll work from That said, the measurements in this post were done to solve real problems, and I think the conclusions that can be drawn from these measurements explain sensible best-practices without relying on the internals of SwiftUI too much. In general you shouldn't rely on undocumented internals, even if you have lots of proof to back up your reasoning. Please keep in mind that I don't have insight into SwiftUI's internals, the information I've gathered in this post is based on observations and measurements and there are no guarantees that they'll remain accurate in the future. ![]() What's more interesting in my opinion is what I learned about how and when SwiftUI determines to redraw views because some of the things I've noticed were quite surprising to me while others felt very natural and confirmed some thoughts I've had regarding SwiftUI for a while. The details and specifics of these issues aren't that interesting. ![]() Another issue that I investigated is one where scrolling performance suffered greatly when just one or two items in a list were updated. One issue was that for some reason SwiftUI decided that it needed access the bodies of a lot of views that never changed which led to some dropped frames while scrolling. We recommend this program with reservations.Recently, I had to figure out how SwiftUI determines that it should redraw views in order to fix some performance issues. Overall, we think that DuckCapture has a lot of potential, but we'll probably stick to other utilities that reliably work for us.ÄuckCapture installs and uninstalls without issues. There are workarounds-we were able to upload our captures to Minus and then save them to our computer-but that's obviously not how we'd prefer to do things. The program has no Help file to speak of, so we weren't able to take any troubleshooting steps. This is obviously a major problem for a screen-capture utility, and one that we're at a loss to explain. A search of our machine indicated that we hadn't inadvertently saved them to some obscure directory they had just vanished. We tried saving them as different file types and in different locations, but when we went to open them, they weren't there. Try as we might, we could not successfully save any of our screen captures. Ostensibly, users can also save their captures as images, but that's where we ran into problems. Once the capture is done, users can annotate it, copy it to the clipboard, print it, or even share it on Minus, a file-sharing Web site. The scrolling feature is especially cool click on a long Web page that you want to capture, and DuckCapture will automatically scroll down and capture the entire thing. The program has a straightforward interface, with icons that users can click to select the region, window, full screen, or scrolling page that they want to capture. It works well for the most part but for us, it had one fatal flaw. Unfortunately, DuckCapture wasn't all we had hoped. DuckCapture promised to be one of the better ones we've tried, and we were especially excited about checking out its autoscroll feature. We love screen-capture utilities, perhaps because they can be both incredibly useful and a lot of fun. ![]()
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