Essentials | Essential cross platform APIs for your mobile apps | iOS library

 by   xamarin C# Version: 1.7.5 License: Non-SPDX

kandi X-RAY | Essentials Summary

kandi X-RAY | Essentials Summary

Essentials is a C# library typically used in Telecommunications, Media, Telecom, Mobile, iOS, Xamarin applications. Essentials has no bugs, it has no vulnerabilities and it has medium support. However Essentials has a Non-SPDX License. You can download it from GitHub.

Xamarin.Essentials gives developers essential cross-platform APIs for their mobile applications. iOS, Android, and UWP offer unique operating system and platform APIs that developers have access to, all in C# leveraging Xamarin. It is great that developers have 100% API access in C# with Xamarin, but these APIs are different per platform. This means developers have to learn three different APIs to access platform-specific features. With Xamarin.Essentials, developers have a single cross-platform API that works with any iOS, Android, or UWP application that can be accessed from shared code no matter how the user interface is created.

            kandi-support Support

              Essentials has a medium active ecosystem.
              It has 1517 star(s) with 510 fork(s). There are 138 watchers for this library.
              It had no major release in the last 12 months.
              There are 292 open issues and 1024 have been closed. On average issues are closed in 272 days. There are 12 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of Essentials is 1.7.5

            kandi-Quality Quality

              Essentials has 0 bugs and 0 code smells.

            kandi-Security Security

              Essentials has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              Essentials code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              Essentials has a Non-SPDX License.
              Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

            kandi-Reuse Reuse

              Essentials releases are available to install and integrate.
              Installation instructions are available. Examples and code snippets are not available.
              Essentials saves you 13524 person hours of effort in developing the same functionality from scratch.
              It has 27258 lines of code, 0 functions and 673 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi's functional review helps you automatically verify the functionalities of the libraries and avoid rework.
            Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of Essentials
            Get all kandi verified functions for this library.

            Essentials Key Features

            No Key Features are available at this moment for Essentials.

            Essentials Examples and Code Snippets

            Javadot img1Lines of Code : 106dot img1no licencesLicense : No License
            copy iconCopy
            public enum StarType {
              RED_GIANT("red giant"),
              WHITE_DWARF("white dwarf"),
              DEAD("dead star");
            public interface StarMemento {
            public class Star {
              private StarType type;
              private int ageYea  

            Community Discussions


            Xamarin Forms BLE Plugin Scan Issue Android 12
            Asked 2022-Mar-04 at 07:30

            I have written a xamarin forms app which uses the Plugin.BLE NuGet package to scan and connect to ble devices. It was working/debugging flawlessly on my phone until it(my phone) updated to Android 12.0 - API 31. I am using the basic vanilla implementation from the plugin:



            Answered 2022-Mar-04 at 07:30

            The BLUETOOTH_ADVERTISE, BLUETOOTH_CONNECT, and BLUETOOTH_SCAN permissions are runtime permissions.

            Therefore, you must explicitly request user approval in your app before you can look for Bluetooth devices, make a device discoverable to other devices, or communicate with already-paired Bluetooth devices.

            When your app requests at least one of these permissions, the system prompts the user to allow your app to access Nearby devices.



            Vue 2 based , vue-cli, vue-property-decorator, vue-class-component, Vuetify, project migration to Vue 3
            Asked 2022-Feb-18 at 14:50

            I am working on project upgrade from Vue 2 to Vue 3. The code base changed according to Vue migration documents: I have mismatch of above mentioned libraries. Does somebody has a running project and would share their working library versions

            Current mismatch error is :



            Answered 2022-Feb-18 at 14:50

            My colleague solved it by moving to Vite. My suggestion would be to drop webpack and use Vite instead.

            Migration guide for Vue 2 to 3 here: Vuetify migration guide:



            Failed to precompile StatsPlots.jl
            Asked 2022-Feb-10 at 22:51

            This might be connected to this or this. However, none of the suggested solutions works for me.

            I'm using VSCode with the Julia extension and I run everything in a Jupyter notebook. My first cell looks as follows.



            Answered 2022-Feb-10 at 22:51

            I was able to resolve the problem. The root of the problem was the missing library libopenblas64. This could be due to a faulty Julia installation. Here is what I have done.

            First, open the Julia command line and execute the following two commands.



            Storybook error when using Webpack5 with Next.JS app + Typescript
            Asked 2022-Feb-08 at 19:42

            I am trying to set up a fresh next.js app using Typescript and Storybook.

            Following some guides online gets me fairly close but I note that the rendered 'HomePage' story is missing styling

            compared with what I get when I simply run



            Answered 2022-Feb-08 at 19:42

            Found the answer here ->

            The solution is simply to add the following to .storybook\main.js



            NPM CI error bindings not accessible from watchpack-chokidar2:fsevents
            Asked 2022-Feb-02 at 12:53

            When I run npm ci on Github Actions I got the error:



            Answered 2021-Sep-20 at 20:57

            Solved removing packages-lock.json and running again using NodeJS 14 (was 10)



            How to read files of External Mass Storage Devices Without DocumentPicker? (iOS)
            Asked 2022-Feb-02 at 02:57

            Just to give some context, there is an iOS app I'm building (in Xamarin) that requires the ability to fetch files (in an automatic way without having the user to navigate to the files and select them manually) that are stored on External Storage Devices (USB Sticks), and are connected (paired) to an iPhone/iPad.

            Users connect a lighting cable to the iOS Devices, and plug their USB Sticks into this lighting cable. Here is an example of the cable that end users use to pair the USB Sticks with their iPhone/iPad, and the app then auto fetches these files from the USB Storage Devices.

            The app then performs 2 functions:

            1. It listens to notifications, for when a usb stick is paired with the iOS Device.
            2. When it receives this notification, it then proceeds with querying the files on the USB Stick, and reads and processes the files. The app reads these files automatically and the user does not need to manually select these files

            I've tried using External Accessory Framework, however that's only suitable for devices that you register with the MFi program.

            Notifications Center never seems to work (the Notifications that handle when a Device gets Connected and Disconnected, the delegates never get called), and I've tried using the Microsoft Helpers.


            I've also tried some 3rd party libraries, but haven't found anything useful.

            It doesn't look Apple has any Api Available to auto query and read the files, without having to use a DocumentPickerController. I know this is because of the App Sandbox, and I cannot directly access the Removable Storage Devices.

            Now for my questions:

            1. Are there any 3rd party libraries anybody can recommend, that can help achieve most of the heavy lifting for this task? I'd prefer a library that's compatible with Xamarin, however if it's a native library (Swift or Objective-C Library, Cocoapods) I'm sure there is a binding I can use on nuget.
            2. Does anybody have any snippets, or documentation, or can point me in the right direction here (Please feel free to post Swift, or Objective-c solutions here if you like)? Where should I look, which Apple Framework (iOS SDK) is most suitable to deal with this situation. And to summarise, is what I'm asking for at all possible on iOS, without having to jailbreak, or get around the App Sandbox?


            So I've tried the solution that @Saamer suggested: Detect if USB is connected to iPhone device

            Here is an example I wrote just to verify if the callback gets invoked, and the app can detect if a usb is plugged in.



            Answered 2022-Jan-30 at 17:40
            1. I thought you needed to jailbreak but it seems unlikely, a solution is possible for

            According to the Apple Docs

            You can use the Files app and other supported apps to access files stored on external devices, such as USB drives and SD cards, connected to your iPhone.

            1. Essentially you have to make your a "supported app". I have downloaded a free app called "Clockology" that I recommend downloading and playing with, which allows users to see data within the app as you can see below:

            You generally use UIDocumentPickerViewController along with the right uttype to get the files from the Files apps or iCloud Drive, and you require activating the Key-value storage and iCloud Documents from iCloud entitlements capability. There's a lot of tutorials on UIDocumentPickerViewController usage, but you specifically want the capabilities that became available from iOS 13 onwards

            This video from WWDC is the best example of getting to where you want. I also didn't find any 3rd party libraries that can help with this


            Edit: If the app does not need to be distributed through TestFlight or the App Store, you can use IOKit and distribute through AppCenter, as long as you have the UDIDs of all the devices you need the app installed on (up to 100?)



            How to share Preferences in a Xamarin.Forms project between an iOS and iOS extensions?
            Asked 2022-Feb-01 at 03:18

            I'm trying to get a string (UserID) using Preferences.Get (Xamarin.Essentials) on a PushNotification.Extension project, but as the Preferences.Set happens in the Xamarin iOS project, I'm always getting an empty string in the extensions project.

            Is there a way to share this preference between the iOS project and the iOS.extension?



            Answered 2022-Feb-01 at 03:18

            According to Apple docs , please follow the steps to enable data-sharinig .

            1. Enable App Groups Capabilities , refer to App Group Capabilities in Xamarin.iOS.

            2. Add the app to the App Group .

            3. Use NSUserDefaults and init it with the name of the extension bundle identifier.



            Invalid value for prop `css` when using @emotion/react with Vite
            Asked 2022-Jan-21 at 08:49

            I couldn't find any information on how to make @emotion/react work in Storybook when using Vite as a bundler in a React application.

            I'm getting errors like Invalid value for prop 'css' in

            tag in almost every story. Even though, @emotion/react is working fine for the webapp itself.

            Here's my vite.config.js configuration:



            Answered 2022-Jan-21 at 08:49

            The solution was found in storybook-builder-vite's github page here.



            unable to load shared object ''
            Asked 2022-Jan-17 at 14:18

            I installed broom.mixed package via conda conda install -c conda-forge r-broom.mixed, however, it doesn't import and shows error message:



            Answered 2022-Jan-17 at 14:18
            Improper Channel Mixing

            I believe the issue being encountered is primarily driven by mixing the defaults channel (specifically the r channel) and the conda-forge channel. This is known to lead to missing libraries and missing symbol references in shared libraries because Anaconda and Conda Forge use different build stacks and sometimes different recipes.

            In this case, r-broom.mixed depends on r-tmb, which on Conda Forge depends on libblas and liblapack, but on the r channel does not have these dependencies.

            Recommendation: Conda Forge only

            Generally, I recommend that Conda users who want R environments should only use Conda Forge and avoid using the r channel. This is because the r channel has mostly been abandoned from what I can tell (e.g., no R version 4 releases, and most packages have not been updated for over a year).

            Furthermore, I would discourage the use of the r-essentials package. Analogous to the Anaconda distribution of Python (anaconda package), the r-essentials package bundles together many packages that are anticipated to be used by data scientists, but some of it simply seems bloated to me. Something specific that troubles me about it is that it ends up pulling in Python in addition to R. No one should need to have Python mixed in with an R environment. This is due to including notebook, which if users really want to load an R environment as a kernel, they only need r-irkernel (as demonstrated below).

            In summary, one should be fine simply doing:



            The specified child already has a parent. You must call removeView() on the child's parent first." Facing this issue
            Asked 2022-Jan-12 at 09:43

            I have used MAUI preview .and VS 2022 .When the application is run and used all functionality and press system back button and cloes the app.After cloesing the app I'm try to oepn the app that time



            Answered 2022-Jan-12 at 09:43

            Seems like this was reported and according to the comment in there, this should be fixed for preview 11+: Which VS2022 have you installed?

            Installing Visual Studio 2022 v17.1 Preview 2 should give you .NET MAUI Preview 11 which should resolve the issue.


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


            No vulnerabilities reported

            Install Essentials

            Xamarin.Essentials is available via NuGet & is included in every template:. Please read our Getting Started with Xamarin.Essentials guide for full setup instructions.
            NuGet Official Releases:
            Nightly / CI Releases:


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