SwiftUI | 🚀 | Frontend Framework library

by Jinxiansen Swift Version: Current License: MIT

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | SwiftUI Summary

SwiftUI is a Swift library typically used in User Interface, Frontend Framework applications. SwiftUI has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

This article refers to SwiftUI apple example and records the results of the exploration here, I hope to be helpful to you. For the content described in this article, by default you have some experience based on Swift language development, so it will not describe every detail in detail; if you have doubts about Swift syntax, you can learn Swift Grammar. When learning and using SwiftUI, if you have any questions, you can join the SwiftUI QQ Group: 18552966 to discuss communication.

Support

Quality

Security

License

Reuse

Support

SwiftUI has a medium active ecosystem.

It has 4725 star(s) with 487 fork(s). There are 125 watchers for this library.

It had no major release in the last 6 months.

There are 0 open issues and 23 have been closed. On average issues are closed in 58 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of SwiftUI is current.

Quality

SwiftUI has 0 bugs and 0 code smells.

Security

SwiftUI has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

SwiftUI code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

SwiftUI is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

SwiftUI releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

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SwiftUI Key Features

No Key Features are available at this moment for SwiftUI.

SwiftUI Examples and Code Snippets

No Code Snippets are available at this moment for SwiftUI.

Community Discussions

Trending Discussions on SwiftUI

PHPickerViewController tapping on Search gets error... "Unable to load photos"

Can't change frame size of LPLinkView in a SwiftUI List

How to implement drag and drop to 3rd party apps in SwiftUI on macOS

On iOS 15, the UIHostingController is adding some weird extra padding to its hosting SwiftUI view (_UIHostingView)

Fix line spacing in custom font in SwiftUI

How can I use async/await with SwiftUI in Swift 5.5?

SwiftUI onHover doesn't register mouse leaving the element if mouse moves too fast

SwiftUI - Unknown preview provider "ContentView_Previews_" when previewing. Happens in a brand-new project

iOS 14 widget works locally, but fails via TestFlight

SwiftUI HStack with wrap and dynamic height

QUESTION

PHPickerViewController tapping on Search gets error... "Unable to load photos"

Asked 2022-Feb-10 at 17:27

I'm trying to implement a PHPickerViewController using SwiftUI and The Composable Architecture. (Not that I think that's particularly relevant but it might explain why some of my code is like it is).

Sample project

I've been playing around with this to try and work it out. I created a little sample Project on GitHub which removes The Composable Architecture and keeps the UI super simple.

https://github.com/oliverfoggin/BrokenImagePickers/tree/main

It looks like iOS 15 is breaking on both the UIImagePickerViewController and the PHPickerViewController. (Which makes sense as they both use the same UI under the hood).

I guess the nest step is to determine if the same error occurs when using them in a UIKit app.

My code

My code is fairly straight forward. It's pretty much just a reimplementation of the same feature that uses UIImagePickerViewController but I wanted to try with the newer APIs.

My code looks like this...

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ANSWER

Answered 2021-Sep-26 at 14:32

Well.. this seems to be an iOS bug.

I have cerated a sample project here that shows the bug... https://github.com/oliverfoggin/BrokenImagePickers

And a replica project here written with UIKit that does not... https://github.com/oliverfoggin/UIKit-Image-Pickers

I tried to take a screen recording of this happening but it appears that if any screen recording is happening (whether on device or via QuickTime on the Mac) this suppresses the bug from happening.

I have filed a radar with Apple and sent them both projects to have a look at and LOTS of detail around what's happening. I'll keep this updated with any progress on that.

Hacky workaround

After a bit of further investigation I found that you can start with SwiftUI and then present a PHPickerViewController without this crash happening.

From SwiftUI if you present a UIViewControllerRepresentable... and then from there if you present the PHPickerViewController it will not crash.

So I came up with a (very tacky) workaround that avoids this crash.

I first create a UIViewController subclass that I use like a wrapper.

Source https://stackoverflow.com/questions/69306179

QUESTION

Can't change frame size of LPLinkView in a SwiftUI List

Asked 2021-Dec-30 at 00:02

I am trying to display rich links in a SwiftUI List and no matter what I try, I can't seem to be able to change the size of the link view (UIViewRepresentable) on screen.

Is there a minimum size for a particular link? And how can I get it. Adding .aspectRatio and clipped() will respect size but the link is heavily clipped. Not sure why the link will not adjust aspectRatio to fit view.

Some of the following code is sourced from the following tutorial: https://www.appcoda.com/linkpresentation-framework/

I am using the following UIViewRepresentable for the LinkView:

...

ANSWER

Answered 2021-Dec-29 at 13:24

The solution that worked for me was subclassing the linkView overriding the intrinsic content size. Thanks to user1046037's comment, using super.intrinsicContentSize.height will enable it to work dynamically.

Source https://stackoverflow.com/questions/70212090

QUESTION

How to implement drag and drop to 3rd party apps in SwiftUI on macOS

Asked 2021-Oct-29 at 08:48

I've tried to Google for the answer but all I find are how to accept drop from other apps and drag and drop in a single app, also mostly iOS focus and not many macOS related resources.

I writing a macOS toolbar app that I'm trying to implement drag and drop for the image the app create programatically and only in memory as NSImage. To allow the image to be draggable, I've implemented the a DraggableImage struct to be used in place of the Image view in the SwiftUI view:

...

ANSWER

Answered 2021-Oct-29 at 08:48

You need to export file URL instead of Data, so this file can be copied by MacOS.

Basic example:

Source https://stackoverflow.com/questions/69644096

QUESTION

On iOS 15, the UIHostingController is adding some weird extra padding to its hosting SwiftUI view (_UIHostingView)

Asked 2021-Sep-30 at 08:50

On iOS 15, the UIHostingController is adding some weird extra padding to its hosting SwiftUI view (_UIHostingView).

See screenshot below (Blue = extra space, Red = actual view’s):

Does anyone know why this happens?

I've reported this bug, Apple folks: FB9641883

PD: I have a working project reproducing the issue which I attached to the Feedback Assistant issue. If anyone wants it I can upload it too.

...

ANSWER

Answered 2021-Sep-30 at 08:50

I’ve tried to find why is this happening without luck. The only thing I’ve found to fix it is setting a height constraint to its intrinsic content size in a subclass of UIHostingController:

Source https://stackoverflow.com/questions/69265914

QUESTION

Fix line spacing in custom font in SwiftUI

Asked 2021-Jul-08 at 10:32

I am using custom font (Catamaran) and it seems like it has big space between lines in it. For example I have this code:

...

ANSWER

Answered 2021-Jul-08 at 10:32

SwiftUI might use values of hhea (Horizontal header table) to set the Text box height. In your case, Catamaran has an ascender of 1100 and a descender of 540. The box height will be calculated as the sum of these two values: 540 + 1100 = 1640. And the UPM (Units per Em) of the font is default 1000. Which means in SwiftUI, when .font(.custom(..., size: 1000)) is set, each line of Text() will have a frame whose height is 1640.

In terms of .lineSpacing(), SwiftUI doesn't set the value for spacing between baselines, but spacing between two boxes instead. If you want to have no spacing between two boxes in the example below, unfortunately setting .lineSpacing() to -(1640-1000) = -640 is not allowed (negative values not acceptable).

UPDATE: An UIViewRepresentable Method

However, you can use UILabel instead to reduce line height:

Source https://stackoverflow.com/questions/68229689

QUESTION

How can I use async/await with SwiftUI in Swift 5.5?

Asked 2021-Jun-14 at 21:52

I have been testing the async/await functionality previewed in the Swift 5.5 release, but I am unable to collect the results from an async function and display them using SwiftUI. Here is my code:

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ANSWER

Answered 2021-Jun-14 at 21:52

I'm the author of the article you referenced.

As discussed in Discover concurrency in SwiftUI, views can make use of the new .task { } and .refreshable { } modifiers to fetch data asynchronously.

So you now have the following options to call you async code:

Source https://stackoverflow.com/questions/67375031

QUESTION

SwiftUI onHover doesn't register mouse leaving the element if mouse moves too fast

Asked 2021-Jun-12 at 17:02

I've made some custom slider views in SwiftUI that change appearance based on hover state, but if the mouse moves out too fast (which is actually a very reasonable speed of moving a cursor), it stays in the hover state until you re-hover and re-leave the component slowly.

Is there a solution for this? The hover code is pretty standard:

...

ANSWER

Answered 2021-Mar-01 at 22:49

I resolved this issue today with a tracking area on an empty NSView. This is tested in a semi-complex and quickly refreshing grid view, which previously had the same behavior you pictured. About 75 views have this modifier applied in the GIF capture in this gist, most with zero border to each other.

Sugar for call site

Source https://stackoverflow.com/questions/65841298

QUESTION

SwiftUI - Unknown preview provider "ContentView_Previews_" when previewing. Happens in a brand-new project

Asked 2021-May-31 at 01:25

I have this simple view.

...

ANSWER

Answered 2021-Jan-28 at 15:59

I had the very same problem. Eventually, I figured out that this happens when the project name starts with a number character, e.g. "01-test". Creating a new project without the digit as a first character works just fine, e.g. "test".

Source https://stackoverflow.com/questions/65873684

QUESTION

iOS 14 widget works locally, but fails via TestFlight

Asked 2021-May-22 at 19:58

I have a SwiftUI app with a widget. When I run the app via Xcode (either straight to my device or on the simulator), the widget works exactly as expected.

However, when I run the app through TestFlight, the widget does appear, but it does not show any data -- it's just the empty placeholder. The widget is supposed to show an image and some text, but it shows neither.

I've seen some posts on Apple Developer forums about similar problems. One accepted answer says the following:

Make sure that you use Xcode 12 beta 4 and iOS 14 beta 4 on your devices. Make sure that you have placeholder(in:) implemented. Make sure that you don't have placeholder(with:) because that's what the previous beta of Xcode was suggesting with autocompletion and without that you won't get your placeholder working. I think this whole problem is caused by the WidgetKit methods getting renamed but that's another story.
As per the release notes, you need to set "Dead Code Stripping" to NO in your extension target's build settings. This is only necessary for the extension's target.
When uploading your archive to the App Store Connect, uncheck "Include bitcode for iOS content".
Delete your old build from a device when installing a new beta.

I've implemented these suggestions, to no avail.

Here's my code for the widget. It first fetches game data via CloudKit, then creates a timeline:

...

ANSWER

Answered 2021-May-22 at 18:23

Did you try to deploy the cloudkit container to the production? You can find it on the CloudKit Dashboard.

Source https://stackoverflow.com/questions/67482411

QUESTION

SwiftUI HStack with wrap and dynamic height

Asked 2020-Dec-27 at 02:17

I have this view to show text tags on multiple lines which I got from SwiftUI HStack with Wrap, but when I add it in a VStack the tags overlap any other view that I put below. The tags are shown properly but the height of the view itself is not calculated inside the VStack. How can I make this view use the height of is content?

...

ANSWER

Answered 2020-May-30 at 13:38

I just managed to solve this by moving the GeometryReader up to the ExampleTagsView and using platforms.first instead of last inside .alignmentGuide

Full code:

Source https://stackoverflow.com/questions/62102647

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

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Install SwiftUI

You can download it from GitHub.

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For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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