I built a Xamarin Binding project for an existing Swift library and I am now trying to create a Nuget Package to distribute it.
The library has three native references to Swift frameworks and I don't see any option to include them. When I try to look inside the Nuget package, I don't see them. When I try to compile an app that uses the package it crashes because it can't find the native framework.
Any idea on how to solve the problem ?
Thank you
Related
I have a Xamarin Forms app that requires me to dynamically load a single one of several possible assemblies at runtime (based on versioning). This should not be a problem as iOS can load assemblies using the mono interpreter. The problem I face is that the IPA and APK packages do not include the assemblies because they are not referenced directly in the app. I include them in the project references but they do not appear in the app package.
Is there a way to tell Xamarin to always include an assembly in the package regardless if it is being directly referenced in code?
==UPDATE==
I have a complete working POC with what I am trying to accomplish in terms of versioning in the application.
https://github.com/rlasker-b2w/XamVersioning
I specifically have to add references in the VersionSelector class otherwise the version projects do not get their assemblies added to the app package.
https://github.com/rlasker-b2w/XamVersioning/blob/main/VersionApp/VersionSelector.cs
So I installed TinyIoC v1.3.0 using nuget in my Xamarin.Android project, its in the references, but I cannot type using TinyIoC; without a compile error. I would like to understand why this is?
PS. I know I can use the TinyIoC.cs file directly, but I thought it would be more convenient to update if I added using nuget.
I get this error:
I think the issue is related to the nuget package TinyIoC 1.3.0 itself.
The nuget package does not contain the lib folder with the related dll so that you can not use the format by using namespace.
Note: Important
The nuget package contains a folder called Content. This folder will copy its content into the main project with packages.config when you install the nuget pacakge. See this similar issue on so.
And it will make TinyloC.cs file directly in your main project and you can just modify it there.
I have created a net framework project with packages.config format.
However, since your project is xamarin andorid app, it uses PackageReference nuget manage format, and content folder does not work for it. Instead, you should use ContentFiles folder, but this nuget package does not contain it.
To make this issue more clearly, you should contact the author of the nuget package to report this problem.
I'm just starting out with Xamarin and trying to install this package 'Optano Modeling' into my Xamarin Forms solution via Nuget. But I keep getting this error when installing Optano modeling.
'Could not install package 'FParsec 1.0.1'. You are trying to install this package into a project that targets 'Xamarin.iOS,Version=v1.0', but the package does not contain any assembly references or content files that are compatible with that framework. For more information, contact the package author.
'
I noticed FParsec is written in F# and my solution is in C#. Does anyone know if Optano Modeling / FParsec can be used in a Xamarin solution? Could someone point me in the right direction?
Turns out that one of the dependencies in a sub dependency (Math.NET Numerics for F#) wasn't compatible with the 'portable45-net45+win8+wpa81' configuration.
What is the difference between a NuGet package, a Reference (is reference similar to a tool?), and a template in Visual Studio?
Why do we need them?
What is done / changed in our project when we install each one of them?
Are they dependent on each other in some way? Which one(s) of them are global installs, and which one(s) need to be installed in every project?
Before any comments or misunderstandings: this answer is NOT composed by me, but it was accepted as an answer here, so for the sake of the users trying to find an answer to this, I am literally Copying the answer to your question in this place.
What is the difference between a NuGet package, a Reference (is reference similar to a tool?), and a template in Visual Studio?
References are used to pull additional libraries into your project. For example, your colleague develop a library which implement some functions that you wanted. You needn't write it by yourself, just add the dll into your project through add reference. Of course you can add any libraries not it come from third part or from Microsoft. But it won't notice you when the libraries changed or updated.
NuGet package is the package manager for the Microsoft development platform including .NET. It will help you manage your packages which installed on your project. When the package has new version released, it will notice you to update it. The NuGet client is a tool provide the ability to produce and consume packages.
Template is similar to a sample project which provides the frameworks based on different type of project. You just need to add your content/functions into this frameworks to implement your requirement. For example, if create a WinForms project, it will reference System.Windows.Forms automatically which contains all stuffs you needed in WinForms project.
Why do we need them?
NuGet package and Reference can help us invoke some functions which have been implemented by others or some have been encapsulated by Microsoft. And the Template can help us create a project without build framework by our self. All of them help us save a lot of time when developing a project.
What is done / changed in our project when we install each one of them?
Add references in your project, it will let you invoke the functions in these references in your project.
Install NuGet packages will add the package reference into your project automatically and then you can use the functions the package provided.
The template will be installed when you install Visual Studio. Most of common templates will be installed. Then you can create a new project through these templates quickly.
Are they dependent on each other in some way? Which one(s) of them are global installs, and which one(s) need to be installed in every project?
Reference and NuGet packages need to referenced/installed on a project. But this project can be create through the templates or can be create by customer self. So in some way, reference and NuGet package are dependent on project.
Templates is global installs and NuGet packages and reference need to be install in every project.
I'm trying to make a very simple Xamarin.Forms test application to explore some features of the System.Data.SQLite package (namely encryption). However, I can't seem to get Visual Studio 2012 to add a reference to the package to the project.
Here are the steps I am taking:
Created a new Xamarin.Forms Portable blank app.
Right-click on TestApp (core project) and select Manage NuGet Packages
Search for "sqlite"
Install the "System.Data.SQLite (x86/x64)" package. (This package is version 1.0.97.0 and it is described as "the official SQLite database engine for both x86 and x64 along with the ADO.NET provider.")
According to NuGet, the package was successfully installed.
However, I cannot see the reference added under my project's "References" folder, and I also cannot write "using System.Data.SQLite" without errors ("cannot resolve symbol 'Data'"). Does anyone have any idea why this is happening?
On a side note, I can follow the exact same process described above except instead of creating a Xamarin.Forms Portable blank app, I choose a regular C# console app. This allows me to install the NuGet package fine and it shows up in references as expected.
Posting an update to share what I've learned.
So as Jason sort of alluded to in his answer, the reason I was not able to reference the package in my Xamarin.Forms project is because Xamarin.Forms is, by definition, a PCL project. It's meant to work on all platforms. The package I was referring to in my question is not a PCL, which means that anything in the package that is platform dependent is inaccessable (which is basically the entire package). The SQLite.Net-PCL package is basically the same thing as System.Data.SQLite, but in PCL form, which means it is compatible for use in a Xamarin.Forms project.
Following this logic, it makes sense that I was able to access System.Data.SQLite from a console project, since a console project is not a PCL project and it targets a specific platform.
For PCL projects, use SQLite.Net-PCL.