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Questions tagged [xamarin]

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4
votes
1answer
116 views

Architecture to lock account to mobile device

I'm currently creating a mobile app and have the following issue. I am required to only allow the user to login from a device that is registered to the users account. A user can have up to X number of ...
1
vote
1answer
106 views

What is the proper way to change the View from a ViewModel when using the MVVM pattern?

I'm trying to follow the Model–View–ViewModel pattern in a Xamarin application and am wondering how the View should be able to change when a given ViewModel is finished. Below I have listed the ideas ...
0
votes
1answer
42 views

Deploying Multiple Versions in One App Package

This is a question about Android, and iOS apps. The technology is Xamarin (C#) but this is not really important. The app will be deployed to the stores. The client app must be compatible with the ...
0
votes
0answers
32 views

Using Autofac (or any IoC) to customize a core product?

We are trying to implement a plugin system where a Customer Project can override small bits of a Core Project in order to make the app custom to a specific customers requirements.. We are working with ...
0
votes
0answers
67 views

Xamarin.Forms and Prism NavigationParameters implementation

I am developing a Xamarin Forms project and use Prism Library as tool to implement the MvvM pattern. I have two views: PersonViewModel: Summary and has Edit button PersonEditViewModel: Details, and ...
1
vote
0answers
28 views

Does this archicteture work for a Mobile App and Destkop App

This is a proposal of a Distribuited Cloud Architecture for DAWUF which is a Digital Audio Workstation under design and developmente in JAVA, XAMARIN, with REST services The white boxes are the ...
1
vote
0answers
32 views

xamarin pub/sub comunication between devices

How would you go about if you would like to create something like: You have let say 3 devices (can all be IOS or Android, a mix not nececery) One of the devices would act as a master and the other 2 ...
0
votes
1answer
94 views

RESTful API get requests by “modified” condition from mobile app

Currently I have following scenario. I have two projects: ASP.NET Core Web API and Xamarin.Forms app. General idea is to have consumer (Xamarin.Forms app) which is getting data from server (Web API)....
-2
votes
1answer
66 views

How to calculate user activity

I am working on a Xamarin.Forms PCL social media app project. People can like posts and comment on them which is saved in MySQL. I would like to add an activity page. What is the best way to ...
1
vote
1answer
187 views

Best way to manage services and exceptions

I have a mobile app who consumes a api service. I have a class to manage all the operations (get, post, put) who throws exceptions if the result is not 200. The app was originaly designed to be ...
3
votes
3answers
601 views

How to decouple code behind with business logic?

I'm having a hard time to decouple two classes. I have my code behind (will call it "class A") that I use to tweak the interface (defined in xaml). Next I have a class B that is only logic. But ...
1
vote
1answer
90 views

Most convenient way to implement the models used by the Service Access layer of a Xamarin application

I am new to the Xamarin technology, and I am working on an Asp.NET Core Web application which basically delivers micro-services which will be consumed by a Xamarin.Forms application. So my Web API ...
0
votes
1answer
282 views

How to add formatting/validation rules to UITextfield on Xamarin.iOS

This looks like another network's question, but I think it fits better on here rather than StackOverflow, since it's not gonna have one basic answer. We are in the context of iOS development, I'm ...
1
vote
0answers
115 views

How to separate source code directories from build directories with VS Xamarin solutions

I've been using CMake for years when developing in C++ using Visual Studio. My directory layout has always seen me separate source code directories from build directories. For those who are not ...
0
votes
2answers
2k views

Distinguishing the differences between view model and service layer

First project trying to use MVVM and Xamarin Forms, so please be gentle; however, I am at a lost on how to differentiate between the logic that belongs in the view model and model/service layer. I am ...
0
votes
2answers
366 views

How to properly architect app to display long forms with a lot of controls?

Basically, I've been tasked to work on a Xamarin.iOS app (predominantly for tablets only) that would display a long scrollable form that contains ~200 controls (buttons, switches, text fields, etc...)....
-5
votes
1answer
118 views

How much time/labor is spent setting up, and publishing a cross-platform mobile app? [closed]

Let me provide an imaginary scenario so that my question is fully understood. Let's assume you are an experienced cross-platform developer for iOS, Android and Windows Mobile. Someone asks you to ...
-2
votes
1answer
257 views

Would learning both XAML UI and XML UI be helpful in improving understanding of XML in general? [closed]

I'm familiar with HTML/CSS, and some non-UI programming using C#/node.js/Java and looking at options for building a simple mobile app. I will definitely use Xamarin, and have to choose between ...
5
votes
2answers
577 views

Should I remove “everything” from my controller in MVVM?

I'm working with Xamarin and we are following the MVVM design pattern. For those who don't know what Xamarin is, it's a technology that allows us to build iOS and Android apps with shared code. ...
1
vote
1answer
1k views

Is it good idea to save user/password and get token from server automatically behind the eyes of the user?

Suppose I have a REST API backend and it is used by a mobile app. Authentication is based on tokens (JWT) with expiration time. Mobile app user does not want to enter credentials so often, even for ...
0
votes
2answers
773 views

Web API vs Entity Framework with Repository Pattern using Xamarin

My team currently has a WPF application that runs on PC just fine. It utilizes Entity Framework 6 with the Repository/Unit of Work pattern that talks to Azure for the database store. We service a ...
1
vote
1answer
881 views

WCF Server for a mobile apps (Xamarin.Forms)

I have a “whiteboard” question. Technically I’d like to ask you about one thing I’m not sure in my design, but if you have time for a quick review the rest of the design - that’d be great. Every tip ...
4
votes
2answers
1k views

Is blocking a UI thread sometimes a good idea?

Say, I created a custom button which includes some animation which is played when the button is clicked. The animation takes 500ms. During that time (until the animation is over), the button should ...
1
vote
0answers
2k views

Sockets (SignalR) vs Push notifications

I'm developing a Xamarin.Forms app with a .Net Web API backend. I definitely don't want to do long polls on my app to the server, but I need the app to remain updated with the server information. I ...