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Destroying Backends - Serverless Backends for Mobile Apps iOS or Android


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Employee Development ...by Cards ...by Lego Brick Boards

Employee Development by using Skill Cards The goal is to build a hand of cards that make up that person’s most relevant personal growth areas. To do this, both the people leader and team member start with a deck of the same skill cards each. In private, each goes through this deck and sorts these cards into three stacks: not relevant, good enough, and to improve. By discussing why each card was placed where, with particular focus on those that do not match, a real, structured, and to-the-point conversation occurs. By focusing on reasoning—what led you to place this card here?—both can develop a shared understanding of the other's views. The main event, however, comes in focusing on those cards in “to improve”. To create focus and drive actual impact, these cards are discussed and prioritized. With a clear priority and a shared understanding of the individual aspects of each, tangible actions are crafted that can be taken to grow one’s career. LinkedIn Rob Sawyer mobi...
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Server-driven UI (SDUI): Meet Zalandos AppCraft and AirBnB Lona

A short WTF: Joe Birch:  SERVER DRIVEN UI, PART 1: THE CONCEPT Zalando seems to follow the SDUI principle as well - defining a common design language and construct the screens on the backend while displaying them natively on the clients. They even go one step further; they implemented a mighty toolset to enable non-technical stakeholders to define their own native app screens Compass: Web tooling to create screens and bind data Beetroot: Backend service that combines the screen layout definition with the data Lapis/Golem: iOS/Android UI render engines Crazy cool! Good job, guys (when you do an open-source release?) To even move faster a Flutter based UI render engine implementation was great! See also AirBnB Lona SDUI approach Building a Visual Language Why Dropbox sunsetted its universal C++ mobile project and AirBnB its React Native implementation
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Microservice Micro-Feature architecture for mobile Apps

RIBs is the cross-platform architecture framework behind many mobile apps at Uber. The name RIBs is short for Router, Interactor and Builder, which are core components of this architecture. This framework is designed for mobile apps with a large number of engineers and nested states. The RIBs architecture provides: Shared architecture across iOS and Android. Build cross-platform apps that have similar architecture, enabling iOS and Android teams to cross-review business logic code. Testability and Isolation. Classes must be easy to unit test and reason about in isolation. Individual RIB classes have distinct responsibilities like: routing, business, view logic, creation. Plus, most RIB logic is decoupled from child RIB logic. This makes RIB classes easy to test and reason about independently. Tooling for developer productivity. RIBs come with IDE tooling around code generation, memory leak detection, static analysis and runtime integrations - all which improve developer product...
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Dark Theme (Dark Mode) in Android WebViews, WKWebViews and CSS

So your apps just implemented a shiny new dark theme and it’s looking 👌 There are lots of benefits to having a dark theme in your application, and having it consistent throughout your application allows for a great user experience. But what happens when the the user runs into a WebView in your app? Support: if (WebViewFeature.isFeatureSupported(WebViewFeature.FORCE_DARK)) { ... } Set: WebSettingsCompat.setForceDark(webView.settings, WebSettingsCompat.FORCE_DARK_ON) Current setting: val forceDarkMode = WebSettingsCompat.getForceDark(webView.settings) Joe Birch Assuming your question is asking how to change the colors of the HTML content you are displaying in a WKWebView based on whether light or dark mode is in effect, there is nothing you do in your app's code. All changes need to be in the CSS being used by your HTML content. CSS dark mode via :root variables, explicit colors and @media query: :root {     color-scheme: light dark;      ...
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FlatBuffers instead of JSON (or Protocol Buffers)

FlatBuffers is an efficient cross platform serialization library for C++, Java, C#, Go, Python and JavaScript (C, PHP & Ruby in progress). It was originally created at Google for game development and other performance-critical applications. Why use FlatBuffers? Access to serialized data without parsing/unpacking - What sets FlatBuffers apart is that it represents hierarchical data in a flat binary buffer in such a way that it can still be accessed directly without parsing/unpacking, while also still supporting data structure evolution (forwards/backwards compatibility). Memory efficiency and speed - The only memory needed to access your data is that of the buffer. It requires 0 additional allocations (in C++, other languages may vary). FlatBuffers is also very suitable for use with mmap (or streaming), requiring only part of the buffer to be in memory. Access is close to the speed of raw struct access with only one extra indirection (a kind of vtable) to allow for format ev...
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j2obc - A Java to iOS Objective-C translation tool and runtime

What J2ObjC Is J2ObjC is an open-source command-line tool from Google that translates Java code to Objective-C for the iOS (iPhone/iPad) platform. This tool enables Java code to be part of an iOS application's build, as no editing of the generated files is necessary. The goal is to write an app's non-UI code (such as data access, or application logic) in Java, which is then shared by web apps (using GWT), Android apps, and iOS apps. J2ObjC supports most Java language and runtime features required by client-side application developers, including exceptions, inner and anonymous classes, generic types, threads and reflection. JUnit test translation and execution is also supported. J2ObjC is currently between alpha and beta quality. Several Google projects rely on it, but when new projects first start working with it, they usually find new bugs to be fixed. Apparently every Java developer has a slightly different way of using Java, and the tool hasn't translated all possib...
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Speed up your unit tests! Swap out your App Delegate for testing.

Faster, please One thing that can slow our tests down is if our App performs expensive tasks on startup and it is not unusual to place code that synchronizes with a server in our implementation of UIAppDelegate. Luckily for us there is a way to change the production App Delegate with a fake that does nothing. Objective-C class FakeAppDelegate: UIResponder, UIApplicationDelegate {   var window: UIWindow?   func application(application: UIApplication,     didFinishLaunchingWithOptions launchOptions: [NSObject : AnyObject]?) -> Bool {     self.window?.rootViewController = UIViewController()     return true   } } let isRunningTests = NSClassFromString("XCTestCase") != nil if isRunningTests {   UIApplicationMain(Process.argc, Process.unsafeArgv, nil,     NSStringFromClass(FakeAppDelegate)) } else {   UIApplicationMain(Process.argc, Process.unsafeArgv, nil,     NSStringFromClass(AppDelegate)) ...
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