Questions tagged [mobile]

**Mobile application development** is the process by which application software is developed for mobile devices (usually low-power handheld or portable devices).

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Is there a way to detect if the guest user on web page has opened my mobile application to enhance his user xp [closed]

I have a website and mobile applications Android & IOS, all platforms are connected to the same database, what we are trying to do is to enhance the user experience by showing him specific ...
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1 vote
1 answer
153 views

Is it possible to store data for an offline-first native app that syncs with a web version without a backend?

I'm working on a somewhat typical notes app that I plan to create with React Native. Since the usage involves a lot of typing, it makes sense that there should also be a web version that users could ...
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2 answers
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Nightly build, GitFlow and PR [closed]

My customer decided to have an automatic nightly build based on develop branch. We usually make a feature branch (and if it is necessary we provide a release compiled manually on that branch) and when ...
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Strategy for dealing with geolocation and geocoding inaccuracies

For a mobile app, we are using the Google APIs for geolocation and geocoding. The basic use case is to find entities within a certain radius (in the range of a couple of kilometers) of each other. ...
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2 answers
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Do I have too much access to my users' personal media?

This would be a broad question - but I'm asking specific to the situation around an app that I've developed. In short, I've written an app that allows users to persist their photos and videos to the '...
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System Design: Chat application in a distributed system context

I am currently working on a side project so I can learn new technologies and understand how the components fit together. For this project, I decided that I wanted to work on Chat Applications in the ...
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2 votes
2 answers
250 views

Understanding passwordless sign up for mobile apps

How does phone number based authentication work, and what are its best practices? I've noticed there are apps with streamlined sign-up/log-in processes where only a phone number is required, simply ...
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2 votes
1 answer
406 views

Secure way of storing client secrets in Xamarin / Android mobile apps

What would be a secure way of storing client secrets used for authentication (webservices) in Xamarin/Android apps ? Secure Storage, which interacts with Android Keystore, seems very useful for ...
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1 vote
1 answer
101 views

Mobile authentication approaches, JWTs and refresh tokens

Context I'm developing togther with my dev team a mobile app in a client-server architecture, since there will be a webclient too, allowing some users (admins) to perform certain operations from the ...
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124 views

How to set up login pin system

i want to set up basic login page in xamarin.forms. There is no username/password, just a simple pin so far i have 3 pages to do this Sign-up Pin page Sign-up Confirm Pin Page (re-enter pin to ...
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2 answers
673 views

How do big messaging apps keep users connected

So let's take the Facebook Messenger app for example. When you send a message it instantly gets sent to the other user you are writing to.I believe they use some kind of WebSockets to send these ...
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5 votes
0 answers
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Is it possible to use a reverse proxy authentication in a native mobile app

We have a few backend services that our frontend SPAs fetch data from. Right now, the SPAs use JS libraries to authenticate with the Auth server (Azure AD) which returns a JWT which is validated by my ...
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1 vote
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How do I keep users of a PWA up to date when the application is in idle / hibernate?

So I'm currently building a .Net Blazor PWA, and I was wondering how the behaviour of my application looks like when it is installed on a mobile device, and the user is done with the app for the time ...
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1 vote
1 answer
273 views

Is it helpful to create UML diagrams when developing a mobile app alone?

I'm thinking of developing my first mobile app and now that I have chosen the language(react native), created the wireframes and done almost all the preliminary work, I'm about to start the actual ...
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1 vote
1 answer
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How to play sounds optimally in the browser?

I have a new site that allows you to play sounds of letters on click. Each letter produces a separate sound. I went from roughly 500kb for .wav files to around 30kb for each sound file. That's a lot ...
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2 votes
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Message queues alternative in mobile development

please let me know if this StackExchange isn't the place for this and I will move the question. I'm trying to write a mobile app that will have a 'notification' aspect. I have web development ...
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2 answers
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iOS App Private Distribution

I have been confused about the best process for private distribution in iOS - imagine we are a company like Just Eat, where venues can sign up with us and take orders from customers via a customer app....
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Reading (GET) Facebook Ads From Ad Library and Reading (GET) Personal Ad Account Billing Data in my Android Application

I'm trying to create an android application for personal use to do the following: Get ads from the Facebook ad library (commercial ones) not the ones with politics topics etc. and then insert them ...
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Vector graphics are smaller in file size and more scalable than raster, why vector graphics are not used more often in web and mobile app development?

As in the topic. If yes - why, if no - why? I never seen it recommended in any android/web development tutorials to use vector graphics instead of your usual PNGs and JPGs and I find it odd. I checked ...
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1 vote
2 answers
1k views

Can you modify the front-end source code of a mobile app?

I get that a front-end isn't secure on the web because one could theoretically access the front-end code by opening dev tools and changing the code. Do I also need to be careful about security for a ...
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2 answers
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Recommended strategy for maintaining a session when navigating from app to browser?

We have an SSO application that provides authentication for a native mobile application, as well as for a web application. There are some features that the web application has that the mobile ...
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2 answers
45 views

Interconnected technique for web, mobile and desktop

I am planning to do the university project with the Desktop application + web application + mobile application, I have planned to use languages for these 3 as below: Desktop application: Java SE Web ...
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1 answer
1k views

Best way to store Session token on mobile App

Background Building a mobile App for product X which is currently hosted as a SaaS solution. The product X does not support OAuth currently, implements basic authentication and generates Session token ...
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500 views

Biometric authentication with back-end verification service process

I am working on an application where I will be using Android and iOS biometric authentication. Coding the use of biometrics on the devices, including prompting and determining whether or not the user ...
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  • 121
-1 votes
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287 views

One Super App or Many Single-Purpose Apps

While Players like Rappi/Alibaba / Wechat have gone the super app way, i.e on single app to host many unrelated services, Ecosystems like Google, Amazon etc still have multiple single purpose ...
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4 answers
202 views

Is it required for an app developer to know information security?

So I've been an indie apps developer for 2 years (I launched my first Android app at the end of 2017), and I've built few apps since then, but all of them were simple apps. Currently I'm planning my ...
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1 answer
102 views

How do you implement an app autoupdate feature from scratch?

I am trying to imagine how Google Chrome automatically updates but have some questions: Is this against Apple's terms of service? I feel like I've seen somewhere that Chrome for MacOS isn't in the ...
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-4 votes
3 answers
963 views

Why local database should be the only source of truth for mobile application?

Being mobile developer for quite some time (ios/android) I've learnt that local database is very rarely needed. Mobile application are mobile by definition, they usually serve only as clients to ...
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8 votes
3 answers
3k views

How can a website get the phone number of the device used to call it?

I'm not registered with Facebook and I've never logged in to Facebook inside the browser I use, Today I enter the site facebook.com and see my actual phone number on the sign in page with this message:...
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Offline-Login Procedure in PWA

I have kind of a unique usecase: Phones that are used to connect to the app might be shared Connections are very unstable (sometimes no connection for half a day) Data should be accessible through ...
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0 votes
2 answers
167 views

How is fast-scroll simulated?

I've noticed on web and mobile apps, when scrolling down to the bottom of a list with thousands of entries it reaches the bottom instantly but appears to be scrolling through every entry. How is ...
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3 answers
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What is done when an urgent fix for an app is needed but updates have to be approved by Apple/Google etc?

I have very little experience in this area, so sorry if I use any incorrect terminology or if this is a stupid/simplistic question in general. But from what I understand, when a developer wants to ...
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2 votes
1 answer
362 views

How can I accurately estimate the minimum resources my application needs?

For an application that is starting out I do not want to over pay for servers and resources that will not be used since the budget is very limited at this point. This will be a for an iOS and Android ...
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1 vote
1 answer
47 views

How can I modify web content on a mobile browser?

I want to build a small extension for major browsers that modifies the HTML and CSS of certain pages. On a desktop browser, this can be accomplished easily. On mobile browsers, however, content-...
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1 vote
1 answer
30 views

Transaction management on mobile applications

While there are prescribed methodologies for the middle layer when it comes to transaction management like Saga pattern etc. I want to know what's the advice on handling such on a mobile application ...
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-2 votes
1 answer
532 views

How can I webscrap images from pinterest and use them in a mobile app?

I have this idea of an app and I'm a little frustrated by how much I don't know how to proceed. My app is basically an art recommendation app. You start with 3 base images and for each images you ...
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2 votes
3 answers
235 views

Best practice for feature flagging in mobile apps while avoiding incomplete functionality?

I'm wondering how best to handle the scenario of releasing a mobile app that includes an incomplete feature behind a feature flag in one version and then the completed feature behind the flag in a ...
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0 answers
143 views

How to generate object Ids for both local and online storage?

My application has both offline (SQLite) and online (iCloud) storage. See: Offline First: How Do I Fetch Data? Now, as stated in my past question above, the application is offline first, and I'm ...
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1 answer
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Are there pitfalls to using only a remote database for a mobile app?

My research indicates that the ideal database design is: Mobile App -> Local Database -> Syncing -> Remote Database using something like PouchDB to do the data replication/syncing. But ...
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0 votes
1 answer
62 views

Authentication, Sign In mobile

I am new to mobile development. As i understand the best way to authenticate/give authorization to a user is using OAuth2.0 with the social providers as Facebook, Google ect ... When we enter the ...
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3 votes
1 answer
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REST API Authentication: Cookie vs Web Storage

Note: This question might sound like a duplicate, but all other similar questions did not take into account (mobile apps, iot's, web, 3rd party usage). Specifically, in dealing with the clients ...
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0 votes
1 answer
39 views

Only be able to sign into app after existing user send invitation [closed]

I am looking to build an app where the only way a new user can enter the app is if they have been invited by an existing user. Are there any API's, tutorials or resources that can help me achieve this....
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2 votes
2 answers
284 views

Directing user to a specific screen on App after he installs the App

I have a very specific use case. We are working on a Project where user can buy the tickets to an event. In this, we are asking the user to enter an Email id where he can receive the email from where ...
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-1 votes
1 answer
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Measuring the usability / ease of use of RESTful API in Mobile Cloud Computing?

APIs vary in their complexity, functionality and also usability. In Mobile Cloud Computing (MCC) applications, which are mainly mobile applications that offloads processing / storage to the cloud, ...
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0 votes
2 answers
89 views

Managing sign-on in mobile applications

I'm programming a mobile app which makes use of REST services. Some of the services are for logged users, so I have a login endpoint which lets me enter my credentials and get a JWT token for ...
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-1 votes
2 answers
4k views

Creating a mobile app based on the ASP.NET Core website

Coming from Desktop development, I'm in the middle of my very first web project (as a small side/learning-project). I'm using ASP.NET Core 2. I'm already thinking about going mobile too. What are my ...
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2 votes
1 answer
183 views

What is the difference between Web Workers and Service Workers in Progressive Web Apps

In the context of Progressive Web Apps (PWA) there are two terms that I am trying to better understand: Service Workers, and Web Workers. What is the difference between them and their intended use? ...
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1 vote
1 answer
2k views

How to handle API responds with DTO or Error Message

I have a mobile app and an API. The mobile app is set up to expect back a DTO from the API but has no information if an request was unsuccessful. This needs to be updated so that better messaging is ...
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0 votes
1 answer
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A separate UIViewController for UITextField - iOS

In my iOS project I have a set of custom textfields, e.g. for password entry. As an example, such textfields can contain additional views and logic - for example, show or hide a password with a press ...
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1 vote
3 answers
6k views

Proposed Method to Restrict API Access to Mobile App Only

I read a lot that you can't restrict your Public REST API to only your mobile application, but I have an idea and I want opinions on it: Variable App Key Method Mobile App Get IP address of current ...
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