#UIImage

[y2fear]

ios - Export and draw ARSCNFaceGeometry mesh from saved obj file into UIImage

[developerhelp]

Load Animated gif in UIImageView IOS

Load Animated gif in UIImageView IOS

I would recommend breaking out the frames of that gif and use animatedImageNamed:duration: – you can name them all the similar name with a number change at the end. For instance: loading-1.png loading-2.png loading-3.png etc. Xcode will recognize you want multiple images and will play those through in order. Look at THIS

[ios-goodies]

Week 363

Happy Thursday! We only have a few more days until the privacy questions on App Store Connect become mandatory on 8 December. And the submissions for the App Store Small Business Program are now open. If you enter before December 18, you can get the benefits from January 1st 2021.

I had been using xcodereleases.com to keep track of the Xcode releases, but I had always found it tricky to figure out which Swift version is used by which Xcode. Well now, with Swift Version from James Dempsey it looks like I won’t have that problem anymore.

Marius Constantinescu

Articles

Swift protocols in SwiftUI, by @zntfdr

Reducing Memory Footprint When Using UIImage, by @Lee_Kah_Seng

UIStackView padding, by @sarunw

How to deal with modal views (a.k.a. sheets) with SwiftUI by @fassko

Testing the UI without UI Testing in Swift by @joemasilotti

What is not so great about SwiftUI, by @tclementdev

Formatted Localizable Strings, by @a_grebenyuk

How to write unit test assertions for Swift Result values, by @mokagio

Adding Views and Modifiers to the Xcode Library, by @kharrison

Tools/Controls

Kanvas: Tumblr’s Media Editor and Camera, by @tumblreng

ColorKit, by @Boris-Em

Business/Career

A Comprehensive Guide to App Pricing Strategies and Tools, by @zachshakked

UI/UX

10 Key Mobile Usability Issues, by @101babich

Credits

zntfdr, LeeKahSeng, pmusolino, sarunw, fassko, Joe Masilotti, Boris-Em

[ktrkathir]

How to change UIImage dimension to (299 * 299) on Swift

How to change UIImage dimension to (299 * 299) on Swift

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) { picker.dismiss(animated: true) classifier.text = "Analyzing Image..." guard let image = info["UIImagePickerControllerOriginalImage"] as? UIImage else { return } UIGraphicsBeginImageContextWithOptions(CGSize(width: 299, height: 299), true, 2.0) image.draw(in: CGRect(x: 0, y: 0,…

[anotherphoneblog]

Lockscreen wall by Lisa, kwgt by me. Statusbar zep by me, uiimages maybe by Tiff. Homescreen weather and dock by Gloria. Icons, badges, and folders by Sophia. Kwgts by me. Font by Iyah still, called Cobbie. Unsure on the wall. Second screen wall and weather by Gloria. Third screen wall by Gloria, kwgt by me. Bottom is time until app. Message was, no clue, keyboard is Cheetah. I change my setup a LOT. I'm sorry.

[slimthickkidd]

Resolves Uiscrollview Optimization Problems

UIScrollView is an incredibly useful

iOS development

control. Unsurprisingly, a large number of articles have been written about how to increase the overall performance of UIScrollView and UITableView. These articles range from recommendations for initializing a descending view to complex loading and preprocessing features of asynchronous content. But even taking into account the period of time this topic has been explored, each new project presents new optimization issues related to UIScrollView and its descendants. Circle frame: UIImage rendering in UIImageView In most modern mobile apps, almost all UITableView cells contain different images (such as a user's avatar, a photo for a post or a video thumbnail). However, the use of high-resolution images creates a bottleneck in scrolling. In addition to the problem of unnecessarily loading a relatively large amount of information on a cellular network, the problem of rendering UIScrollView constantly annoys you. UIImage goes through several independent stages until the user can see the final image on the device screen. These phases include: Decompression of image data Make the data decompressed in CGContext, resize, smooth and perform other similar actions At the same time, decompression and reproduction processes are delayed in this context (lazy) - d. H. They are executed when accessing real data and not during the initialization of UIImage. When this UImage is assigned to the UIImageView image property, all previous layers are executed in the UI thread, causing various delays and jumps in the UIScrollView content while scrolling. Solution 1: Asynchronous image rendering and client-side resizing The first solution is to render asynchronous UIImage in CGContext before adding it to UIImageView. At the same time, it seems quite logical to change the resolution of the image using the actual size of UIImageView and a previously processed and cached image is cached. Solution 2: Resize server-side images With this solution, the size of the content is changed directly on the server so that you can receive an image ready for use on the client side. There are several ways to implement this solution: Creates a source image resource that contains multiple copies of the original image at different resolutions. This action must be performed on the server once the upload is complete. After that, you will need to create a convention between all the platforms that contain the content of the resource, the basic information of the link and a suffix to show the correct resolution Combining the first and second approximations (ie, "flying" the image and caching the new images so that it can be sent without delay if it receives similar requests). Each of these methods has its limits in terms of free space and processing time. Therefore, selection must be made based on the processing power of the server equipment. Interestingly, one of the most flexible, practical and scalable solutions is the use of third-party services described in Solution 3.

[tabletonki]

Color code generator white

#Color code generator white full#

#Color code generator white code#

#Color code generator white code#

Mixing these three colors would give you a rgb color code represented like this RGB (23,34,255). Each of the colors takes a value between 0 and 255, a total of 256, with which a total of 256 x 256 x 256 is achieved 16,777,216 different colors.

#Color code generator white full#

By default, the maxColorValue argument from the rgb. The RGB Color Value, Red - Green - Blue, is based on mixing these 3 colors to get the full range. If let outputImage = filter.outputImage?. Paste the HEX reference of a color and obtain the RGB code (in two different scales) to input in R. Let transform = CGAffineTransform(scaleX: 2, y: 2) The code that I found in the mean time was compiling but didn't work, it was a SO example using the "CIFalseColor" filter: var qrImage = UIImage(systemName: "xmark.circle") ? UIImage()įtValue(data, forKey: "inputMessage") light ? lightImage : darkImageīut otherwise it worked. I had to modify the imageAsset?.register check to the following as I could not use Environment(.colorScheme) because the Struct was not a View, as in other part of the my code, which was in SwiftUI: var osTheme: UIUserInterfaceStyle QrImage.imageAsset?.register(whiteImage, with: UITraitCollection(userInterfaceStyle. assign the white version to be used in dark mode Let whiteImage = context.createCGImage(whiteCIImage, from: whiteCIImage.extent).map(UIImage.init)! Color Color Code Color Color Code Red FF0000 White FFFFFF Turquoise 00FFFF Light Grey C0C0C0 Light Blue 0000FF Dark Grey 808080 Dark Blue 0000A0. Let blackImage = context.createCGImage(blackCIImage, from: blackCIImage.extent).map(UIImage.init)! Let whiteCIImage = maskFilter.outputImage! Let blackCIImage = maskFilter.outputImage! Instead of boring your visitors with regular black and white design, the addition of an interesting color palette makes sure your vision shines brighter. create a version of the code with black foreground. MaskFilter.maskImage = qrCode.applyingFilter("CIColorInvert") Let maskFilter = CIFilter.blendWithMask() and the background becomes black, because white = let color through, black = transparent. Note that we need to invert the code for that, so the actual code becomes white Use the QR code as a mask for blending with a color. So you can, for example, create a black and a white version and use the register(.) method of UIImage to "bundle" them both into one dynamic image: let qrCode = filter.outputImage!.transformed(by: transform) You can use the QR code as a mask and blend it with a solid color to effectively colorize it.

[foxlascl]

How to save to clipboard xamarin forms pcl

#How to save to clipboard xamarin forms pcl portable#

#How to save to clipboard xamarin forms pcl for android#

#How to save to clipboard xamarin forms pcl windows#

#How to save to clipboard xamarin forms pcl for android#

The implementation for Android is similar, but before we write any code, we need to give our solution permission to write to the external storage of a device. Note that it's important to include the following line for the DependencyService to work: you can retrieve the saved UI Image as well if needed using Var chartImage = new UIImage(NSData.FromArray(imageData)) ĬhartImage.SaveToPhotosAlbum((image, error) => Public void SavePictureToDisk(string filename, byte imageData) For iOS, this is a relatively straightforward call to the SaveToPhotosAlbum() Method: Each class will handle saving somewhat differently. The next step is to create classes in each of our platform-specific projects to work with IPicture. The usage for the DependencyService is:ĭependencyService.Get().SavePictureToDisk("ChartImage", chart.GetImage()) Ĭreate Classes in Platform-Specific Projects iOS Project We’ll eventually create classes in each platform-specific project for file saving, and our DependencyService will delegate image saving to the appropriate class.

#How to save to clipboard xamarin forms pcl portable#

The portable class library will use a dependency service to call the correct native implementation of the interface. In this manner, we can provide a basic API for saving our byte arrays. Void SavePictureToDisk (string filename, byte imageData) The interface is fairly simple, because we're really only interested in passing the byte array and a filename when we save the image to disk. Fortunately, Xamarin.Forms provides us with the ability to implement a DependencyService, which we use in tandem with our own interface, so we can provide platform-specific implementations for saving our byte array to disk. Assuming we’ve already created a FlexChart object (called “chart” here), the usage to return a byte array is:Ĭreating the byte array is thus quite easy, but saving the image to disk is complicated by the matter of each platform having its own capabilities and file system structure. The first step in this walkthrough is to use GetImage() to return a byte array.

#How to save to clipboard xamarin forms pcl windows#

Though saving an image can be accomplished in a straightforward manner on the native platforms, doing so in Xamarin.Forms requires a more nuanced approach, since it requires accommodating iOS, Android, and Windows Phone all at once. A more obvious scenario is when a user simply wants to preserve a snapshot of data from their mobile application. The GetImage() method is beneficial in any scenario where an image file is easier to work with, such as incorporating graphics into an email, document, or presentation. In this article we cover basic implementation of the GetImage() method of the FlexChart control in a Xamarin.Forms portable class library project, creating an interface for saving the picture to disk, and using a DependencyService to automatically call the correct logic for saving an image based on the platform. One of the most practical features is the GetImage() method, which captures an image of a control as a byte array. I guess my last resort would be to display the configuration information in a XF editor control or such or just copy it to the clipboard (if possible) and have the user manually save the data to a file outside of the application.We have several exciting new features for our existing controls.

I have tried using the System.IO namespace but encountered the same Access Denied error when saving the file to a someplace outside the application.

(A user trying to find the folder here would not be easy.) Saving anyplace else I received an Access Denied error.

I have tried using the FilePicker plug in but could not get it to save to anywhere outside the application.

The file needs to be savable in a place where the user can access / copy it to another device (i.e.

The app itself does not required the device to have a network connection.

It needs to work on all supported Xamarin Forms platforms - UWP, Android, iOS and Mac.

This will prevent the users from re-entering all the configuration information on each device where they wish to run the app. Additionally, the app can be run on multiple computers by the same user (There are valid business reasons for doing this.) What I would like to be able to do is backup the configuration of the app to a file that can then be used on another device to automatically configure the app on the new device in exactly the same way. My Xamarin forms app required the user to perform a certain amount of configuration before it can be used.

[fahrni]

Stream for Mac Dev Note

In iOS development land we have UITableViewController and UITableViewCell for building lists.

On the Mac – AppKit – we have, with my limited knowledge, NSTableView, NSTableCellView, and NSCell. Apple’s developer docs say:

Beginning with macOS v10.7, you can use NSView objects (most commonly customized NSTableCellView objects) instead of cells for specifying rows and columns. You can still use NSCell objects for each row and column item if you prefer.

For some reason my brain finds that paragraph confusing. I need to dig a bit deeper into the docs but my initial read leaves me believing NSCell is not NSView based?

No matter, it’s not a big deal. I already have Stream for Mac populating the table and selecting a row displays the article for it. I have a very long way to go, mind.

Something I have considered doing is wrapping up the AppKit classes with classes that implement UITableViewController and UITableViewCell so I could at least have a familiar interface to work with, but that might be a bit of work for very little gain.

Oh, if you’re wondering why I’m doing the Mac version in AppKit instead of SwiftUI is simply because I’d like to learn a bit about AppKit. It’s apparent we’re headed for a SwiftUI only world. That’s fine. I’ll be on board at some point – I’ve already done a bit.

Oh, FYI, it’s not that difficult to move from UIKit to AppKit. Minor things, like the paragraph I mention above, but AppKit existed long before UIKit.

Here’s a very simple example.

#if os(iOS) import UIKit typealias HSColor = UIColor typealias HSFont = UIFont typealias HSImage = UIImage typealias HSView = UIView #elseif os(macOS) import AppKit typealias HSColor = NSColor typealias HSFont = NSFont typealias HSImage = NSImage typealias HSView = NSView #endif

In my code I’ve been using HS versions of these class types and they work as expected. If I find a missing method on the Mac, I extend the class to include the missing method. Easy!

Here’s one example of that. extension NSColor { static var darkText: HSColor { return HSColor.black } static var lightText: HSColor { return HSColor.white } static var label: HSColor { return HSColor.labelColor } }

Still plugging away.

[goodorbetterprogrammer]

HackingWithSwift Day 19/20/21

Project 2

var countries = [String]()

countries.append("estonia") countries.append("france") countries.append("germany")

countries += ["estonia", "france", "germany",]

Two ways to append array =======================

func askQuestion(action: UIAlertAction! = nil) { button1.setImage(UIImage(named: countries[0]), for: .normal)        button2.setImage(UIImage(named: countries[1]), for: .normal)        button3.setImage(UIImage(named: countries[2]), for: .normal) }

If assign a default value to a passing param for a function, when call the function, can just write askQuestion() without pass in anything. Looks confusing but better try to get use to it

============================

Just realized I can’t do ++ , but only += 1 when I try to do the challenge

For this project, not much note as per project 1 as well, since most of them I learned before when I use objective-c

[ktrkathir]

How to add Watermark on UIImage in swift

Learn Swift programming

Hello, Today we are going to learn how to add watermark(Text/ Sign) on UIImage. This is a simple way to add text in particular position. Implement this function in UIImage extension #01 Implement Add Text on Image // MARK: - Adding texts/ Water mark on image func addTextOnImage(drawText text: String, atPoint point: CGPoint? = nil) -> UIImage { let textColor = UIColor.white let textFont =…

[tamarub]

田丸D

Appleが殺そうとしているもの2020年版リスト | ギズモード・ジャパン

AndroidアプリでおなじみのUIImage: AppleiOS 14で話題のウィジェットとAppライブラリは、Android古参のUIです。ウィジェットは大きさも見た目も好みで変更が可能。たとえば気になるお天気とメッセージ系アプリをHOME画面に表示したり、レイアウトの自由度が格段にアップします。一方、Appライブラリはアプリをカテゴリ...

たまるブログ

[tak4hir0]

今年もやってきました、Apple殺されリスト。 2020年は｢Intelアウトサイド｣に尽きますが、WWDCでAppleに狙われた人気サービス＆機能はほかにもこんなにあります！ Intel（インテル）Image: Apple歴代もっとも野心的かつ遠大なターゲットロックオン。Appleは前評判通り、長年盟友関係にあったIntelに決別し、モバイル版チップで培ったノウハウを活かして、Macでも自社デザインの｢Apple Silicon（アップル シリコン）｣にプロセッサを移行することを正式に発表しました。次期mac OS Big Surでは、Microsoft OfficeからAdobe Photoshopにいたるまで、アプリはすべてApple自社開発のプロセッサ対応に。さらばじゃインテル。 AndroidアプリでおなじみのUIImage: AppleiOS 14で話題のウィジェットとAppライブラリは、Android古参のUIです。ウィジェットは大きさも見た目も好みで変更が可能。たとえば気になるお天気とメッセージ系アプリをHOME画面に表示したり、レイアウトの自由度が格段にアップします。一方、Appライブラリはアプリをカテゴリ別に分けておける機能ですね。アプリを隠せるところなんかは、Androidのドロワーに怪しいまでに似ていますよ。 VIDEOVideo: Jon Rettinger/YouTubeインスト抜きでアプリの��部機能を限定的に使える｢App Clips｣も、スマホに強い米Gizmodo編集部のSam Rutherfordに言わせると｢AndroidのInstant Appsだよね｣。Androidの友だちに見せたら、こんなの昔からあるわいって言われるかも。 Google翻訳Image: Apple機械翻訳はGoogleの独壇場ですが、 iOS 14でもSiriでリアルタイム翻訳ができるように。これで一気にSiri強化と打倒Google翻訳の一石二鳥を狙ってるんでしょうね。でもSiriはコマンドの読み取りが大の苦手だし、同時翻訳となると端末側で方言と標準語の聞き分けも必要。Googleは自然言語処理テクノロジーに膨大な投資を行なっているけれど、AppleはSiriを見る限りそこまでじゃないので、そう簡単に倒せる相手じゃなさそうです。 チャットアプリ（Slack、Discordなど）Image: Appleメッセージアプリでは、＠メンション機能、インラインコメント、チャットをフィードの一番上にピン留めできる機能ができます。｢チャットにスターを付ける｣、｢メッセージをピン留めする｣、｢スレッド開始｣…どれもSlack、Discordそっくりで、SMSとの棲み分けがどんどんあいまいになってきている印象です。他社のWhatsApp、Signal、Telegram、Facebook Messengerによる追随も、もはや時間の問題かもしれません。 Googleマップ道順サジェストImage: AppleAppleとGoogleの飽くなきマップ二強争い。昨年のApple版ストリートビュー｢Look Around｣に続き、今年Appleが用意したのは、最寄りの名所、レストラン、お出かけスポットをスニペット表示できる機能です。街歩きが百倍楽しくなりますね。 世の自転車ナビアプリすべてImage: Apple｢Strava｣なんかの自転車ナビアプリは一掃になっちゃう運命なのか…。Mapアプリのみならずウォッチでも自転車おすすめルートが表示されるようになります。従来からあるサイクリング中の運動量のトラッキングに加え、自転車から降りるタイミングも教えてくれるんだそうな。 Appleどっぷりな人は｢Apple純正アプリで同じことできるんだったら、もうほかのアプリは要らないなあ｣って片付けちゃいますよね…。特にStravaは人気機能を最近有料化したばかりなので、ここから先はシビアな上り坂が予想されます。 Image: AppleiPadOS 14は検索が強化され、検索バーに入力するだけで、ホーム画面から直接アプリとウェブの串��し検索ができるようになります。iPadがまた一歩ラップトップに近づきますね！ ブラウザのセキュリティ機能Image: AppleChromeとFirefoxでおなじみのプライバシーとセキュリティ機能（追跡するサイトがあれば教えてくれるし、データ流出で第三者に見破られたパスワードを入力すると警告してくれる）がSafariに導入に。新OSのBig Surでは、追跡してくるサイトがあればプライバシーレポートで確認できます。さらに｢新しいSafariは、サイトの表示がChromeより50%高速｣と豪語してました。ブラウザも終わりなき戦いです。 手描き＆メモアプリ（Nebo、Google Keepなど）Image: AppleApple Pencilはかんたんに手書き入力できる環境が理想。iPadのメモアプリでは｢Nebo｣が超有名なんですが、Scribble機能の登場でその地位も危うくなってきました…。Scribble機能を使えば、入力欄に文字をスタイラスで手書き入力できるし、いびつな図形もピシッと補正されます。図形、略図、落書きも思いのままで、まるでGoogle Keepみたい！ 手洗いタイマーアプリImage: AppleWear OSの手洗いリマインドタイマーに似てるけど、Appleは水が流れてせっけんでごしごしやる音がすると、自動的に起動して20秒のカウントダウンがはじまるんです。お家に帰ると｢手を洗おう｣とリマインドしてくれるので、パンデミックも楽しく乗り切れますね！