Hi!I have a model with an antity that have a property that use the "Allows External Storage" option. For some reason the framework does not handle the files inside this directory correctly when some of the files have the SAME data.Basically the issue is:- You have an entity with a binary property that use the “Allows External Storage” option.- You create some entities and for every entities you put the same data in the binary property.- After saving Core Data will create inside the _EXTERNAL_DATA folder a file for every entity data.- You delete all the entities from the store.- Core Data will delete only a single file and all the other files are left in the directory forever.So if you create for example 10 identical entities (same data) with 1MB of data for every entity, after deleting all the entities from the store your _EXTERNAL_DATA folder will still contain 9MB of orphaned data that will stay there forever. 😟This bug is present in iOS 7, iOS 8 and iOS 9 beta 5.I have made a sample project that illustrate this behavior:http://www.dale1.ch/documents/delete_external_data_sample_project.zipI have filled a bug report (18319761) the 12 September 2014 with all the informations needed to reproduce the issue but unfortunally is still Open and I didn't received any feedback from Apple.Alan

Hi, Sometimes it is useful to show a movie to better explain the behaviour of something. Animated gifs would be perfect for this purpose. Unfortunately it doesn't seem possible to include animated gifs in posts. When I try to do it (using the "Add Image" feature) I always got this error message: Will the attachment of animated gifs be supported in the future? If not, what is the recommended way to include a short movie in a post? Thank you

If we use white as tint color for an inline or compact UIDatePicker (iOS 14, dark mode) then if the today day is selected the number become unreadable. The problem is that the today day number color is always white and, when selected, the background color is also white. Anyone know a way to set the color of today's day number to black when is selected? Thank you

I'm developing an iOS 14 Catalyst app and I'm trying to setup the window toolbar. I created a NSToolbar and assigned to the scene window titlebar property. var toolbarDelegate = ToolbarDelegate() func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) { #if targetEnvironment(macCatalyst) guard let windowScene = scene as? UIWindowScene else { return } let toolbar = NSToolbar(identifier: "main") toolbar.delegate = toolbarDelegate toolbar.displayMode = .iconOnly if let titlebar = windowScene.titlebar { titlebar.toolbar = toolbar titlebar.toolbarStyle = .unified titlebar.titleVisibility = .hidden } #endif } I then assigned some items to the toolbar via the toolbarDefaultItemIdentifiers delegate method. func toolbarDefaultItemIdentifiers(_ toolbar: NSToolbar) -> [NSToolbarItem.Identifier] { let identifiers: [NSToolbarItem.Identifier] = [ .toggleSidebar, .print, .flexibleSpace, .print ] return identifiers } This work as expected. Now, let's say that I want to align some items with the edges of the supplementary column. I found that there is an NSToolbarItem named supplementarySidebarTrackingSeparatorItemIdentifier. This item appears to allow us to align items with the supplementary column. If I do this: func toolbarDefaultItemIdentifiers(_ toolbar: NSToolbar) -> [NSToolbarItem.Identifier] { let identifiers: [NSToolbarItem.Identifier] = [ .toggleSidebar, .flexibleSpace, .print, .supplementarySidebarTrackingSeparatorItemIdentifier, .print, .flexibleSpace, .print ] return identifiers } I got the following result which is exactly what I want to achieve (the items are aligned with the supplementary column): But there are some issues. As you can see from the above image for some reason the background color of the toolbar on top of the supplementary column become white. But it's worse. If I resize the window the background instantly become gray: If I then scroll the content of the supplementary column the toolbar become white again. Another issue is that If I collapse the primary column the toolbar on top of the supplementary column loose the right separator line. Why? I tried to search some info online but if I try to search for supplementarySidebarTrackingSeparatorItemIdentifier I got only 5 results! One of these is Apple's official documentation page, which does not contain any info about the behaviour of this item: Apple documentation about supplementarySidebarTrackingSeparatorItemIdentifier At this point I wonder if this item is ready to be used in real apps. Someone has experience using the supplementarySidebarTrackingSeparatorItemIdentifier item? There is a way to align toolbar items with the supplementary column without having the above described issues? (different toolbar background color, missing toolbar separator line) Thank you

Hi, I need to understand inside an override of UIBarButtonItem what is the systemItem of the button (done, add, trash, search, ...). Unfortunately at the moment the only method I found is to inspect the content of self.description (see below), but this solution, as well as being ugly, is very fragile because we can't be sure that the description will be the same also on future version of iOS / Swift. Someone know a better way to check for systemItem inside an UIBarButtonItem override class? Thank you class BarButtonItem: UIBarButtonItem {     override func awakeFromNib() {         super.awakeFromNib()         print(self.description)     } } <MyApp.BarButtonItem: 0x7fadbcacbea0> systemItem=Trash

Hi, If I generate an image from a symbol the resulting image is surrounded by some margins. For example this code: let image = UIImage(systemName: "suit.heart") will generate this image: As you can see there are some margins around the content. There is a way to build an image cropped to the actual content, like showed in the below example? Thank you

Hi, The following code allow to build an image from an UILabel: let label = UILabel() label.text = "test content" label.backgroundColor = .white label.layer.cornerRadius = 10 label.layer.masksToBounds = true label.sizeToFit() let format = UIGraphicsImageRendererFormat() format.scale = 5 let renderer = UIGraphicsImageRenderer(bounds: label.bounds, format:format) let image: UIImage? = renderer.image { rendererContext in label.layer.render(in: rendererContext.cgContext) } This works perfectly on iOS but on Mac Catalyst the label text is very blurry as you can see in the image below. Both images are created with the same exact code and have the exact same resolution of 460x103. On top the iOS version and on bottom the Mac Catalyst version. Note that not all of the image is blurry, but only the text. In the code I set a corner radius of 10 and you can see that the corner is rendered with an high resolution, like the iOS version. It's just the text that for some reason is blurry. It's like if the label text is rendered with a scale of 1 and then scaled up. Someone know why? There is something I can do to improve the rendering of the text? Thank you

Hi, I'm trying to define the style of an UIButton using UIButton.Configuration in a Mac Catalyst app. I was able to configure the component as I want except one thing. I want to change the style of the button when the window is not active. The default filled style automatically do this. For example below you can see a button configured with UIButton.Configuration.filled(). If the window become inactive (for example by activating another application) the color of the button change, like so: Now, If I configure a button with this configuration: var configuration = UIButton.Configuration.plain() configuration.background.strokeColor = .gray configuration.baseForegroundColor = .red configuration.baseBackgroundColor = .clear the button display with this configuration when the window is active: but also when it's not active: I want to change the text color from red to gray when the window is not active. Someone know how to do it? Thank you

Hi, I have a controller with a UITableView. If the user, on an iPad with a keyboard or on the Mac, press the tab key, the first cell is focused showing a border. The user can then move the focus using the keyboard arrows. That's ok. The problem is that the cell is focused also when the cell is selected manually, i.e. by tapping on it. It is possibile to keep the cell focus feature when the user use the tab key, but stop focusing the cell when it's activated directly by tapping on it? Thank you

In a Core Data store I have a binary data attribute with “Allows External Storage” set to true. Everything work as expected, i.e. the data of this attribute is saved inside the _EXTERNAL_DATA folder. For every data stored into that attribute, a file is created inside _EXTERNAL_DATA with a UUID as file name and without extension. That's expected. For some reason the _EXTERNAL_DATA folder of a particular user was full of files with an “.interim” extension. Somebody know what are this files? In which cases files are saved with the ".interim" extension? Do we need to do anything with these files? Can they be deleted? Thank you

When using storyboards, string catalogs automatically grab translation comments from the "Localizer Hint" attribute of the objects in the storyboard. The problem is that we can only specify a single comment per object. What if we need to specify a specific comment for some of the attributes of the object? For example, I often need to provide a specific comment to each segment title of segmented control objects. Currently, I'm doing that by setting the managed property of each string to "Manual" and setting the comment directly from the string catalog. There is a better way to handle these cases?

If an in-app purchase is made when my app is not running, the next time the app launches Transaction.updates will emits a transaction for the purchase. That's great. But if an in-app purchase is refunded when my app is not running, the next time the app launches Transaction.updates will NOT emits a transaction for the refund. Is that the expected behaviour? If yes, in order to check for refunds at app launch, are we supposed to cycle trough Transaction.all and search for them? Thank you

Hi!I currently developing a mobile website and found that Safari on iOS has some problems setting the focus on inputs when they are inside an iframe.When in a page you have many inputs you can tap on a field and then use the next / previous buttons on the keyboard to navigate between the fields. When the focus move to another input Safari scroll automatically the page centering the field in the page. This is great and works well.The problem is when the fields are inside a page of an iframe. In this case when you change focus from one field to another Safari has some kind of issue; the page “bounce” and the focused field is not centered in the page.I have made a video of a simple page that has this issue. In the first part of the video the page without the iframe is loaded and the focus works correctly. In the second part the page with the iframe is loaded and the issue is visible.http://www.dale1.ch/documents/safari_iframe_focus_issue.movThe code of the first page (testinput.html) where the focus is correctly handled is this:&lt;!DOCTYPE html&gt; &lt;html&gt; &lt;head&gt; &lt;title&gt;Test input&lt;/title&gt; &lt;meta name="viewport" content="width=device-width, height=device-height, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no" /&gt; &lt;/head&gt; &lt;body&gt; &lt;div&gt;&lt;span&gt;Input 1: &lt;/span&gt;&lt;input type="text" tabindex="1" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 2: &lt;/span&gt;&lt;input type="text" tabindex="2" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 3: &lt;/span&gt;&lt;input type="text" tabindex="3" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 4: &lt;/span&gt;&lt;input type="text" tabindex="4" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 5: &lt;/span&gt;&lt;input type="text" tabindex="5" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 6: &lt;/span&gt;&lt;input type="text" tabindex="6" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 7: &lt;/span&gt;&lt;input type="text" tabindex="7" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 8: &lt;/span&gt;&lt;input type="text" tabindex="8" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 9: &lt;/span&gt;&lt;input type="text" tabindex="9" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 10: &lt;/span&gt;&lt;input type="text" tabindex="10" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 11: &lt;/span&gt;&lt;input type="text" tabindex="11" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 12: &lt;/span&gt;&lt;input type="text" tabindex="12" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 13: &lt;/span&gt;&lt;input type="text" tabindex="13" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 14: &lt;/span&gt;&lt;input type="text" tabindex="14" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 15: &lt;/span&gt;&lt;input type="text" tabindex="15" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 16: &lt;/span&gt;&lt;input type="text" tabindex="16" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 17: &lt;/span&gt;&lt;input type="text" tabindex="17" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 18: &lt;/span&gt;&lt;input type="text" tabindex="18" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 19: &lt;/span&gt;&lt;input type="text" tabindex="19" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 20: &lt;/span&gt;&lt;input type="text" tabindex="20" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 21: &lt;/span&gt;&lt;input type="text" tabindex="21" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 22: &lt;/span&gt;&lt;input type="text" tabindex="22" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 23: &lt;/span&gt;&lt;input type="text" tabindex="23" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 24: &lt;/span&gt;&lt;input type="text" tabindex="24" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 25: &lt;/span&gt;&lt;input type="text" tabindex="25" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 26: &lt;/span&gt;&lt;input type="text" tabindex="26" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 27: &lt;/span&gt;&lt;input type="text" tabindex="27" /&gt;&lt;/div&gt; &lt;div&gt;&lt;span&gt;Input 28: &lt;/span&gt;&lt;input type="text" tabindex="28" /&gt;&lt;/div&gt; &lt;/body&gt; &lt;/html&gt;This is the code of the page that has the issue (testinput_iframe.html):&lt;!DOCTYPE html&gt; &lt;html&gt; &lt;head&gt; &lt;title&gt;Test input&lt;/title&gt; &lt;meta name="viewport" content="width=device-width, height=device-height, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no" /&gt; &lt;/head&gt; &lt;body&gt; &lt;iframe src="/testinput.html" /&gt; &lt;/body&gt; &lt;/html&gt;The issue is present in Safari on the iPhone, iPad and the xCode Simulator from version 8.4 to version 9.2.Someone know if this is a bug? There is way to fix it in css or javascript?Thanks and sorry for my english! 😉

Hi!I noticed a strange behavior on MapKit when using the iOS 11 clustering feature.If you add some annotations on a map (with same clusteringIdentifier and same displayPriority) MapKit will correctly merge together annotations that are close.The problem is that if you remove all the annotations and then you add them back the map will no more merge the annotation together. It’s like the clustering feature simply stop working.I don’t really know if it is a bug or if I miss something.Someone else have noticed this?Alan

Hi, On iOS 13 and iOS 14, if you have a navigation controller that use large titles and you push a controller that does not want a large title (navigationItem.largeTitleDisplayMode = .never) there is a smooth animation between the two navigation bar heights (from the large one to the small one). On iOS 15 the animation is missing and during the transition the pushed controller view top part is covered by the large title bar until the end of the transition. After the animation is done the height of the navigation bar suddenly becomes small. Here's the transition on iOS 14. The navigation bar height gradually changes from large to small: And here's the transition on iOS 15. The navigation bar height is not animated and remains the same until the end of the transition animation: I opened a bug report regarding this issue (FB9290717) but I want to know if someone has found a temporary fix for this. Thank you