Questions tagged [android-development]

Used to tag questions related to Android programming and new development features. Android is a platform and complete development stack from the Operating System to the APIs. developer.android.com is the official site for information about Android development.

Filter by
Sorted by
Tagged with
-4
votes
0answers
43 views

Has Android API a bad design architecture?

I come from Java/Spring world, and I just started learning Android on my own. For this purpose, I'm following "Android Programming The Big Nerd Ranch Guide" book. I'm just halfway the book, but I'm ...
-1
votes
3answers
79 views

What makes more sense: (a) To have multiple apps accessing the same DB (b) single app

On Android, do people create separate apps accessing the same database? For example an app that has users, producers and a customer support. How can one decide if it makes more sense to have a ...
0
votes
0answers
22 views

Android Design Question - Should a Reporting App Operate with Non-Standard Launch Modes?

My company has an application largely designed around the idea of running reports. When we had originally conceived the project, we had decided that it made the most sense to use the Android provided '...
0
votes
0answers
51 views

Android : How to represent one activity starting another activity with an intent in a UML sequence diagram and class diagram?

In this simple example I have two activities ActivityA and ActivityB. ActivityA is the foreground activity. User clicks a button that executes dispatchActivityBIntent() that creates a intent and ...
-2
votes
1answer
62 views

Big scale projects

I had a question about big scale projects. what if the team decides to change a library and therefor the codes should be changed. for example what if the team wants to change the picasso library to ...
-1
votes
4answers
212 views

How do I prove an app is mine? [closed]

So I am in the process of finishing an app (android for now), and I have a doubt about if I should have papers that proof that I made that app. Its the first time for me to publish an app, and I am ...
0
votes
1answer
57 views

What architechture to follow when I need to make user login? Android

I am writing an app, some of its functionalities require the user to be authenticated. I am planning to create an annotation like this: @RequiresAuth fun commentOnTask(){ .... } this annotation ...
-2
votes
1answer
49 views

What does app class means? [closed]

In framworks for developing app whether it be a joomla or react or angular i see app class. What does it mean. Like if there is some user class, or some input class or that make sense for some purpose ...
1
vote
2answers
349 views

How to connect IOT devices to Android App(initial connection) [closed]

Background I am starting a new project, and I want custom IOT sensors for an app I am writing. I want to keep everything as simplistic as possible so the IOT devices wont be running any major software ...
0
votes
1answer
385 views

Do shared ViewModels contradict MVVM?

I want to follow the MVVM app architecture. I also need to have some communication between some fragments. But the official approach is pretty confusing. Taken from the docs (https://developer....
3
votes
1answer
460 views

Why using ViewModel when using also Repository?

I read this guide about recommended app architecture for Android. Here is a graphical summery: The role of ViewModel is clear, but I don't understand why we need it if we use Repository. The purpose ...
1
vote
1answer
61 views

Database structure for an app used to capture data in warehouses

I am in the process of creating an android app for our clients that would replace the paper-trail in their facilities with electronic inspections. Although I have coding experience, I have little ...
1
vote
1answer
121 views

Are “I'm writing android applications” and “follow open-closed principles” reasons to allow global state?

For example, suppose I have an android application, in simple, there are 3 activities : MainActivity -> Main2Activity -> Main3Activity ,which user can visit them in sequence (eg: by button ...
0
votes
0answers
1k views

Sending push notifications to android by nodejs server

I am having the requirement in my project, that nodejs server has to send the notification (kind of push notification) to our mobile, and user( or mobile holder ) have to act on that notification like ...
-2
votes
1answer
51 views

What happens to threads when On Sleep Mode and after?

When an android device enters sleep mode it is know that cpu sleeps. That means that, services, threads are paused and everything sleeps. Is that true? In case it is, what happens after the device ...
-2
votes
1answer
85 views

Connecting android app(android studio) to myphpadmin database(already on the server)

I have a website for admin and a mobile app for normal user. Both of them share a same database which is now on the cloud(The website for admin is already deployed with the database on the server). ...
1
vote
1answer
648 views

Android application to RTL (Arabic)

I have an Android application (E-commerce) in English, Now I want to change language to Arabic and RTL(Right to Left) I am new in that, where and how much efforts it take? What specific problems ...
1
vote
1answer
251 views

Some questions on mobile push notification?

I need to work on android mobile push notification. I have recently gone through some of the tutorial on google. I would like to summarize the my understanding first Developer registers the app with ...
2
votes
1answer
575 views

Best practices for app-cloud synchronization of database representation

I'm planning a cookbook-like Android app that would let users store/add/edit their e-juice recipes, keep track of the ingredients, etc. Internally, I'll be storing the data in a database on the user's ...
2
votes
1answer
101 views

Preloaded/Starter Data in an Android App when installing?

I'm working on my first android app. It's a companion app for a video game, and it should come with preloaded data. I'm not entirely sure how to best go about this. I apologize if this has been asked ...
-2
votes
3answers
133 views

Is there any rule of thumb regarding which version of Android you should target, minus the current version?

I am working on an Android app, and trying to figure out which version I should target. The current version is 28, so I figure that targeting any version of that minus 3 (ie >= 25) seems reasonable, ...
0
votes
1answer
262 views

Android Clean Architecture - Seperate Usecases, Single Usecase, or not a Usecase at all?

I'm working on refactoring an older project of mine to follow the Clean Architecture paradigm (and loving it so far) and one of my components is causing me a bit of confusion in relation to whether or ...
1
vote
0answers
34 views

ExecutorService Doubles Memory in API<26 Android [closed]

My app downloads data from a PHP Server using threads from an ExecutorService with ThreadPool size 4. In API 27, the app runs perfectly without causing any OOM exception from the Heap memory. But all ...
0
votes
1answer
212 views

Handling Networking on Android

While doing Android development. There is really no clear way of doing network operations, sending and receiving data. Currently I am handing it using HttpsURLConnection and having streams to build a ...
0
votes
1answer
203 views

Watermark on Video implementation , Server or Client

Below is the context, Right now i'm developing an android application, which will allow the user to upload the video and image to the server. I want to allow the users(his friends) to download the ...
-4
votes
1answer
603 views

Create an apk that's a slideshow of images? (Android)

Non-developer UI / UX designer here. Looking at ways to show android prototypes on some dev tablets that are locked down. Locked down in a sense that they can't get to android market they only have ...
-1
votes
1answer
56 views

Avoiding extra parameters through API or device (Android, iOS)

What is the best practice for REST API call from and device (Android, iOS). I am getting extra parameters/fields in JSON response, while calling an API. Throughout the the application there are ...
0
votes
2answers
582 views

Version control locally on Android

I am trying to make some version control locally on my Android project. It is just to have control about my changes, but I do not want to upload them to any external repository. Neither I want to ...
1
vote
1answer
335 views

Unicode Telugu language characters

I am developing a mobile app in android in which I use Telugu (Indian language) texts. On my mobile Telugu language alphabets are available. Therefore, I am not facing any problem for testing my app. ...
1
vote
2answers
3k views

Build a realtime chat app which stores messages in a MySQL database

I'm thinking of making a realtime chat app that would allow me to store user messages into a MySQL database. So far these are the two ideas I have. 1) Create and API which the message is sent to and ...
1
vote
1answer
740 views

Understanding application licenses when using third party libraries in an android project

I'm developing an app for the 2nd time but it's the first time i'm using third party libraries in my application. One of the libraries seems to have an MIT license and the other is the android ...
-1
votes
1answer
70 views

Which would be one easy,reliable and secure way (preferably the best one) to check that a date taken by an Android App is the real date?

By easy I mean easy to implement in code. By reliable I mean that it doesn't depend sources who might fail under which there is no good control. By secure I mean that it cannot be worked around or ...
0
votes
0answers
104 views

Mobile development and infinite List pattern

I m currently working on a React Native application which aims to provide à huge list of items, using infinite scroll and a local state (no matter the technology / plaform, it's stored in RAM) of the ...
7
votes
2answers
2k views

Pure Dependency Injection - How to implement it

I'm doing an Android project for an online course. I would like to use DI in that project, so I started to use dagger2, but now I started to have typical newbie problems that are holding me back. As ...
-1
votes
1answer
123 views

What are some ways to compare and contrast software architecture strategies?

I am currently working on an Android project that I have concluded needs refactoring done for a core part of the app experience. Let's call this part of the experience "Search". From looking at bug ...
-1
votes
1answer
73 views

Retro-engineering an application on Android

I'm trying to retrieve some personal data from an application that has completely disappeared from Google Play, and its author has answered none of my emails. (I'm namely trying to retrieve a private ...
3
votes
0answers
744 views

Handling account roles in Android app

I'm building an Android app where different "types" of users can log in - lets say User and Admin are the two roles (there could be more than two). User can access some views in the app, by pressing ...
3
votes
0answers
704 views

Multithreading in Android

Looking for resources that teach multithreading in Android and list best practices. I want to do some image processing on the preview frame of the camera (already have this part set up) but want to ...
3
votes
3answers
797 views

How to keep Activity navigation logic generic enough to be reused in different workflows

I structure my Android application following Uncle Bob's Clean Architecture which basically comprise of at least following relevant layers:- Presentation - Using MVVM approach. This layer contains ...
7
votes
2answers
7k views

What's the best implementation for offline mobile app synchronization?

We have an Android app written as a Cordova AngularJS SPA which has now grown so that we need to add some work to it meaning we have to improve the synchronization part of the app. The app is mainly ...
3
votes
1answer
352 views

Architecture recommendation for Android

Recently I developed an Android application which is very difficult to maintain. We are stuck in a complicated situation. We developed Android Apps which contained 500k LOC and another team developed ...
0
votes
2answers
1k views

Class instance while retaining variables between activities

First: This is for a project that is already deployed, and requires a solution that isn't "rewrite how the whole thing works"! I have a "record detail" screen of sorts that is storing the ...
1
vote
2answers
888 views

What should I do if I published an app with a wrong package name?

I found out that the package name should follow the web domain you own for this application / developer Id. I published an app starting with com.health... (example) because I didn't know better at ...
1
vote
0answers
48 views

Does Facebook Mobile Application call Graph API directly?

Does anyone know that Facebook mobile application is using their Graph API directly? or they create another layer specifically for handle their mobile application? Thanks.
0
votes
1answer
210 views

Android Studio, HTML and Java Correlation

I've recently started designing apps in Android Studio, and I've noticed that the same operations (for example, using a widget) can be completed by either going into the activityname_java file and ...
2
votes
2answers
2k views

How to check if app is offline

I am developing internal Android apps for the company I work for. In various places in the apps I need to connect to an internal server. This server is shutdown for maintenance for a period of time ...
0
votes
1answer
196 views

Inheritance and Parcels

In Android development, we have Parcelable interface. Since I wish to build Data Models that will run on multiple apps and services (not just Android), I would like to add two jar libs that will share ...
5
votes
1answer
561 views

Android: Design for fetching update/syncing from server

I'm building a meeting app where users can create, join (by invite), and edit events like meetings, outings etc. Think What's app chat groups. So I'm looking into designing how the android app would ...
-1
votes
1answer
627 views

Synchronize local data with server data in an android application [closed]

I'm starting to develop an android application where I have to persist user data. For server data I want to use Google Cloud with noSQL but I don't know what to use to save data in local memory when ...
0
votes
0answers
69 views

Should I use a Service or Thread with my Android app? (specific example inside)

In my Android app I want to have a couple of demonstration functions (i.e., functions that are not yet implemented but I want to show what they would look like if they were). All that needs to be ...