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.

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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 ...
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0answers
4k views

Can MVP be implemented in Android with Activities and Fragments as Presenters and Custom Views?

Lately my team has started considering the implementation of MVP pattern in some of our applications. We followed the several guides and tutorials out there, basically ending up with regular ...
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2answers
8k views

How to sync the data from the same user across multiple devices

I'm working on a small fitness app in which the user (whom is authenticated with the a server) could create their own workout plan which will be synced with a server. The problem with this is that ...
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2answers
773 views

Good design pattern to enable/disable certain functionality based on condition

I am working on a paint type application in android. I got toolbar on left contains tools like undoCut, redoCut, box, frame, cutting, coloring, next, previous etc. I wanted to know what is the best ...
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179 views

How to turn off third party app store and side loading except my app store

I want to prevent installing apps using third party app stores but except only one app store. This specific app store is in my control. I can change it's code to send a message to the mobile device ...
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1answer
249 views

Android Studios: Unable to create a New File

I've been following The Complete Android Developer Course in Udemy. I followed the exact steps downloading the same files, I've already downloaded and saved JDK_HOME in the environmental variables ...
2
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1answer
673 views

Is IntentService an implementation of Command Pattern?

According to Wikipedia: In object-oriented programming, the command pattern is a behavioral design pattern in which an object is used to encapsulate all information needed to perform an action or ...
3
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3answers
6k views

Why use XML in Android?

From what I understand, isn't XML used for layouts and to setup how an activity looks? My book says that XML files are converted into Java code but then, why not just write everything in Java?
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1answer
54 views

Storing mutliple selected values in DB

In my Android app, there is a question like "Which of the following foods did you eat today?" (not the actual question), with a fixed list of foods (e.g. "Apples, Banana, Pizza, Burgers") from which ...
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1answer
118 views

How to associate images in SQLite

I'm a newbie and couldn't find anywhere, concise information regarding which approach I should be taking when working with images. The thing is I'm developing an app whose main purpose is to keep ...
1
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1answer
164 views

Efficient 2d per pixel lighting on Android [closed]

I am trying to create a simple 2d game to learn on my own. My current task is creating a lighting scheme. My goal is to make the screen appear dark except where I create lights. I have a light class ...
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0answers
378 views

Gradle Flavors vs. App Projects

I've inherited a pretty big and old project with a tiny bit of technical debt which is still under active development. A couple of months ago we made the jump from Eclipse+Ant to Android Studio+Gradle....
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1answer
248 views

Developing an Android application while dogfooding it

I started learning Java and Android development recently, and I'm learning by building a small app for myself. Nothing fancy, it's just a simple mileage tracker for my car. I know there are tons of ...
3
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3answers
1k views

Using JDK in Google Android Studio License Issues

I'm new to android developing and maybe my question is strange. If I want to make commercial apps, libraries, or services for android and use Google Android Studio + Oracle JDK (not OpenJDK) is there ...
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1answer
793 views

Usage of github libraries

So far there had been a lot of external libraries provided for us to reduce our efforts on coding and utilising the time to provide quality apps to the play store. Now, I am keen to understand ...
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0answers
5k views

Android, PHP session and JSON object retrieval

I am working on an app in android studio.. it currently has a login and registration system that are linked to a database and both work perfectly. I am now trying to carry over the user id value ...
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143 views

Is it possible to use Protocol Buffers natively for message passing between a Go web service and an Android app?

I want to connect an Android app to a Go web service (I have a small social network in mind) and would like to pass data to and from the web service using Protocol Buffers, since it recently seems to ...
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1answer
450 views

Project has become so complex and big that I am lost [closed]

Hello this has never happened with me before . I am making an online shopping android app which has become huge and complex . While developing the code I have followed all the clean naming conventions ...
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2answers
3k views

Ideal way of updating app's views when data changes [closed]

Okay this is not platform specific question. But any answer related to iOS,Android or Windows Phone will help. So I am building a chat application (yes another one) but I am really confused about how ...
0
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1answer
64 views

Restructure Service - Http - Notification communication

I am trying to restructure a project to make components reusable and clearer. Consider the following scenario: A WakefulBroadcastReceiver (in my case called SimpleWakefulReceiver) will start my ...
2
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1answer
612 views

Building a news app for both phones and tablets

I am building a news app. In phone mode it should have a navigation drawer which slides out when you tap on a hamburger button or slide your finger. That navigation drawer has a fragment with static ...
1
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1answer
180 views

excute Vs excuteOnExecutor [closed]

There are two ways to execute AsynTask, i.e., execute and executeOnExecutor. I already know that execute works serially and executeOnExecutor works in parallel. So my question is: Which one to use? ...
9
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2answers
9k views

Development on Android without using Java [closed]

As the title of this question suggests, I am looking forward to develop app(s) on Android platform without using Java at all. It doesn't mean I have some kind of vendetta against this beautiful ...
1
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2answers
208 views

How to test android apps that depend on telecom provider connection?

I am planning to write an app that needs phone number and contact list. Is there any way that I can test my app without buying a telecom provider connection for my android phone. Without a sim the ...
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1answer
195 views

How to deal with product owner who refuses to follow UI design rules

We develop Android application. We base on old version of similar application developed in our company. This old application was designed by some noobs which didn't follow UI Android design rules. ...
3
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0answers
82 views

Android Development: Styling the application

How do you approach theme and styling of an Android application? I have all the functionality and I'm now styling and dealing with colors, etc. This is my first big time Android app, and it seems like ...
4
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1answer
290 views

Register user in mobile app without e-mail

We are currently developing an app for Android and iOS which requires the user to perform a registration. However we don't want the user to go through all this e-mail and password activation link ...
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2answers
1k views

Managing multiple versions of the same Android Library Project

I have an Android Library Project which I intensively used in a few projects. I started a new project in which I am also using this library. I want to improve some things in library (method signatures\...
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1answer
2k views

How can I test my camera-dependent android app on most devices? [duplicate]

We are developing an app for taking photos faster. We do this by actually taking videos instead of photos and processing the individual images in the video on the fly and combine them to create a high-...
3
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0answers
94 views

How to limit users of a service to a specific program

I have built an android game - I would like to add a "high score" leaderboard to it, such that people can show off how high they managed to score. How should I design it so that people can't "hack" it ...
2
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1answer
855 views

OnClickListener good practice

Which one of the ways has better performance, or is a good programming practice, making the holder activity extend OnClickListener and make a Switch() clause for getItemId() or making one ...
3
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0answers
69 views

Android network Lib development

I have to develop an Android library that should frequently communicate with a server in the background. Access to the lib Object should be guaranteed everywhere in the Apps that will use it, so I ...
8
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1answer
2k views

Why does the new ADT create a static inner class Fragment by default?

Honestly, I can't help but feel that this is done merely to confuse newcomers. Most of the errors on Stack Overflow by complete Android newbies mostly stem from that they have a static inner class ...
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0answers
544 views

What are the implications of the cache when using notifyDataSetChanged?

I use Volley to return JSON from an API. I parse this JSON and add StoreItem objects to a List, then use an adapter to display in a listview. I use the cache functionality in Volley, and I'm ...
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1answer
413 views

2D Game Data Structure in OpenGL ES 2.0

I'm trying to come up with some data structures for rendering my map on OpenGL. It is going to be ~ 100x100 blocks(squares) total, with each block being around 100 pixels. However, the screen will ...
12
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2answers
916 views

Strategies to troubleshoot an error that only happens on a specific device

As an Android developer, the target market I create apps for is very fragmented. While I can specify certain requirements - e.g. my app only supports Android version x.x or above, sometimes errors may ...
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2answers
3k views

What could be used to get data from server to android as fast as it reaches server?

What is the best way to get data from server as fast as it gets to it? (Like instant message, or simple broadcast for example). I first thought about using miniature web server in android and get ...
3
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0answers
385 views

Are Calls to a WCF Service via JSONP Secure?

I am looking at developing a complete HTML5/JS mobile app that can be deployed to Android, iOS and Windows platforms. I am using DevExtreme tools to help me do that. I already have a WCF service that ...
0
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1answer
1k views

Proxy to redirect DNS during development [closed]

I am using Genymotion to test an app. The app is basically a browser that connects to my website. I do not have the app's source. I do the development and testing of the website in a domain like this: ...
0
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0answers
291 views

How do International Call Rerouting Apps work?

Since DTMF seems impossible on Android devices, I really wonder how it is possible to setup a direct dail service like Jinggling (http://www.jinggling.com/how_it_works.html). I realize one registers ...
23
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6answers
20k views

Design for syncing data in Android

I have been seeing two implementations for syncing data between the server and the client on majority of the apps. This assumes no GCM is set up:- Running an intent service periodically which ...
14
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2answers
18k views

What to do when request is sent to server and while waiting for response internet connectivity lost?

I am sending a huge amount of data to server. Now while I have sent the data and waiting for server response, suddenly my android device gets internet connection lost. So what I used to do is, showing ...
2
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1answer
622 views

Can you help me understand this design pattern made by Java expert?

I inherited the project from a very experienced Java developer. The project is Android app and the guy who coded is is very experienced in coding regular Java apps. He introduced some file structures ...
8
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1answer
4k views

Why does Android's Bundle API accept ArrayLists rather than Lists

I'm new to Android and while going through a tutorial on saving Activity state to a Bundle, I noticed that instead of accepting the more generic List interface, Bundle's put methods are expecting ...
5
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2answers
7k views

Benefits to using fragments in Android projects

I am learning Android programming and right now and i'm reading about fragments. I understand what fragments are, but either the tutorial is missing some steps or i'm missing something. So my question ...
4
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2answers
9k views

setSoftInputMode versus InputMethodManager

I have seen and used both of the methods to hide the on screen keyboard while coding Android: getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN); and: ...
2
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1answer
572 views

Android design advice - services & broadcast receivers

I'm in the process of learning the Android SDK and creating some projects to get a grasp on the system. The current project I'm working with works just fine but I'd like to get some advice about ...
7
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3answers
1k views

How do people deal with Android fragmentation? [closed]

I've spent the past few years working on iOS apps, and I'm now giving some serious consideration to creating an Android port of one of my apps. I'm sure that complaints about fragmentation are a ...
2
votes
1answer
2k views

Android Application(Client) and Server(C#.Net) Communication

I am confused which approach to choose - Poll (which waste battery), GCM or any other approach which suits best? Scenario is: my client is Android and server is C#.Net. Server sends Invitation to ...
2
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2answers
385 views

Android: Not able to experiment on own? [closed]

I have just started learning Android App Development a few days ago, with prior knowledge of C/C++, HTML and CSS. This is the situation I am facing Repeatedly: I am learning from a Video Tutorial ...