Questions tagged [android]

Android is Google's open source OS and system for smart phones and tablets. Use this tag for software engineering questions about Android; for user questions, visit our sister site Android Enthusiasts Stack Exchange.

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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 ...
0
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0answers
292 views

How to create calendar events in android (that will work with iPhone later too)

I'm developing an Android app right now with a cloud back-end using Google App Engine + Cloud Endpoints (a RESTFUL service). Eventually, I will find an iPhone developer to make my app for iPhone too,...
1
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1answer
752 views

Android & OutOfMemoryError: Possible causes besides memory leak?

In my application I keep receiving crash reports where the root cause is an OutOfMemoryError. The app is quite image heavy (I use Picasso for all the image loading) and also has a WebView component ...
0
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1answer
374 views

Using open source apps source code under Apache v2 [closed]

I modified some code and added few (minor) changes to an open source Android app. Now I want to publish it on play store. The app is licensed under Apache license v2. The license file is included in ...
7
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2answers
275 views

Android: Pattern for checking requirements at startup?

My app's launcher activity checks a bunch of requirements like whether GPS is enabled, there's a network connection, the app has device administrator privileges, etc. Some of these checks display ...
0
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1answer
174 views

MainService vs. Application

My conceptual question circles around Android. What I like to do is running a service that acts as the central point for application-wide things and combine this with an event-system. For instance, ...
0
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1answer
676 views

Android Service vs Simple class with thread for network access [duplicate]

I am in quite a dilemma about how to solve my problem regarding network access. I checked this question but it does not really gives a solution for my problem. All of my REST based requests are ...
0
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1answer
414 views

Api for CMS And Mobile applications either separate or same

I would like to ask an architect based question What is more secure and most standard way to follow.For let's say a mobile application, Should the Api for mobile interaction with server be ...
1
vote
1answer
149 views

Method documents differs between Java docs and Android docs

Some times I see problematic differences between Java doc and Android doc in about method documents.For example in about setReadable (boolean readable, boolean ownerOnly) method you can see java doc ...
3
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2answers
3k views

Class becoming God Object what pattern to use

I am developing Android app and my MainActivity is becoming God Object. By the way native Activity class implementation is some sort of God Object already. The problem is that my activity class is ...
4
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2answers
665 views

Is ART an installation process? Or an OS? Or a virtual Machine?

When attempting to understand Android Runtime, I came across the wikipedia page. The graphic shown there adds to my confusion. If .dex is getting converted entirely to ELF, why is ART needed anymore? ...
0
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1answer
352 views

Use GPL code in commercial android app by spawning a separate process [duplicate]

As I understand, GPL allows use of a GPL program along with a proprietary program as long as they are separate programs and communicate at arms length. In order to do this, if I spawn a process from ...
25
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1answer
18k views

What to keep in mind when releasing an app which uses libraries licensed under the Apache 2.0 License? [closed]

I'm creating an Android app which is soon ready for release. I'm just going to implement a tab system using this library. I read that it is licensed under the Apache 2.0 License. I've never used any ...
6
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2answers
2k views

how can the presenter or view interact with the model in the MVP pattern?

I'm learning the MV* patterns. MVP in this case. I'm trying to refactor an old android application into the MVP pattern to make things less tightly coupled, but I'm struggling one one concept. I know ...
2
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1answer
195 views

What layer would an Audio Player Service fall under in a an MVP system?

I'm trying to completely overhaul an app I wrote a while back that plays audio, and I'm learning how the MVP pattern of organization works, but I'm not sure how/where an audio playback service would ...
0
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1answer
724 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 ...
3
votes
2answers
1k views

Do I need a web-service for this case? Data-synchronization over multiple clients

I'm new in this area and a little bit confused about my current thoughts on a web-service implementation for my application. I want to synchronize all connected clients with the current data on a ...
0
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2answers
2k views

Uploading text data to server from SQLite is faster or text files?

My application receives a lot of data every milliseconds(name,id,value,.. of a signal from a simulator device). and I should upload this data to MySQL server. First I need to save them in a database ...
1
vote
1answer
330 views

What to test for in a simple form where the value of one input field dictates other fields?

Note:- I have added android and iOS tags to this question but it is not necessarily restricted to those platforms. Consider a simple registration form where the the value of one field dictates what ...
0
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0answers
583 views

Android runtime - does ART miss optimization opportunities over Dalvik?

Is ART a strict improvement over Dalvik, or there are optimizations that an ahead-of-time compiler will miss compared to JIT, but Google decide they don't matter in practice? For example, with JIT, ...
0
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2answers
64 views

Android. HTTP Communcation, and GCM

I have an app that sends/receive data via HTTP POST, and communicates with PHP/SQL on the backend. I however wanted to integrate GCM to I can tell the app to "check for an update" to query the server....
1
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0answers
926 views

Android: How to set a stop flag in native C thread from Java

In my NDK Android app, Java part runs native C code to perform intensive calculations. It does so by creating an AsyncTask worker object that runs the native code in a separate thread via the JNI. The ...
0
votes
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 ...
-1
votes
1answer
223 views

Android IRC Connection [closed]

I'm developing an app, and am a newbie in terms of development on android. I want to write a script that will automatically connect to an IRC Server, Channel, Port and then when you say something in ...
0
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0answers
2k views

Hybrid Apps and Storage - how does it work with Native apps and which to use?

I'm using Ionic at the moment. I believe, like many others, that hybrid apps will become more more common/important than they are now simply because the frameworks are getting better and better. ...
0
votes
1answer
63 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
609 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 ...
-3
votes
1answer
612 views

Physics/Game Engine in C++ for mobile app [closed]

First post so be gentle. I am a junior seeking a Comp Sci major and was looking into making a mobile game. I wanted to use this for my thesis project next year, and possibly a way to pay back college ...
4
votes
1answer
2k views

Best practices for MVP pattern on Android

my team has had great success introducing MVP and the associated unit tests that go with the presenter. We are wondering how granular we should make the interaction between the View and the Presenter....
5
votes
1answer
5k views

Why is Android Runtime's AOT compilation more performant than Dalvik's JIT? [closed]

With Android 5.0, Google has introduced the Android Runtime, or ART. ART "brings improvements in performance, garbage collection, applications debugging and profiling." However, it also replaces ...
1
vote
2answers
1k views

Best Way To Store Images For Mobile Synchronization

The scenario is, I have a Web Dashboard (Developed using PHP + MySQL) and have Android and iOS Apps synchronizing data from the Web Dashboard (only one way i.e. Dashboard to Mobile Apps) Now the ...
1
vote
0answers
109 views

Multiple 1024x1024 texture pages or one 2048x2048 texture page?

I have a lot of textures around the size of 512x512, and the LibGDX texture packer can't find a way to put more than one of those on one page for some reason. So, I end up with fifteen or sixteen ...
3
votes
1answer
401 views

Should I rename package after Android app name change?

I have an Android app. I have changed the app's name from appname1 to appname2. I would like to know if I should also change my package name from com.myname.appname1 to com.myname.appname2 to reflect ...
1
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0answers
273 views

URI naming scheme for assets shared between Android app users

A feature of my Android application is to allow users to choose graphical assets from a gallery view. Each asset is physically defined by an individual JSON file on the file system. The application ...
0
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0answers
568 views

Using a code library for Android with Apache 2.0 license

If: I want to create an app (e.g. for a business who wants all its employees to download the app from Google Play freely) I do not have an "about" button in the app. The app is closed source. How ...
1
vote
0answers
74 views

Individual methods or parameters for Google Analytics abstraction on Android

A coworker and I are having a discussion around the best way to build our abstraction on top of Google Analytics for an Android application. A couple of data points. We have auto-tracking enabled ...
0
votes
3answers
295 views

Should I be extracting strings from source in core java the way android does?

I just started doing android development stuff after getting pretty comfortable with Java. Android apps tend to do this weird thing where they have all strings for their program held in an XML file ...
31
votes
8answers
8k views

Should I spend time preventing piracy of my app? [duplicate]

The title says it all, the more I do research about piracy and the tools used to crack an app the more I think it is just wasted time. My biggest threat is that my app is being cracked and uploaded ...
9
votes
2answers
55k views

String[] args vs (String . . . args)

When programming for android, whenever I use an AsyncTask the doInBackground method looks like this. protected String doInBackground(String... args) But when using the arguments anywhere in that ...
1
vote
1answer
98 views

More than 20 Records Inserted in a Span of 1 Sec

Well, this is not specific to any programming languages. I came across this situation in Android, iOS, PHP and .NET. The problem is many times I come across a situation while building IoT apps, where ...
1
vote
2answers
2k views

Running an HTML/JS/CSS only app on Android without external Phonegap/Cordova etc

Is it possible to run a small and simple game on android using only CSS/JS/HTML? E.g I have built a small game using the all too known 3 folder stucture and I was wondering if there is any easy way ...
1
vote
0answers
313 views

Use Android App Icons for Sharing

I got a question about licensing of android app icons. At the moment I am developing an app and I implemented a share function. The user can select a prefered app to share a text message in a popup ...
3
votes
2answers
3k views

Why doesn't Android use shared libraries?

In Android if you use a library in your app (such as the Support Library) the code for the library is duplicated on the device for each app that uses it. Why can't android use the linux "shared ...
1
vote
2answers
207 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 ...
1
vote
1answer
2k views

Same android app connecting to multiple database -concept

I am looking for best method to create application which are connected to different databases based on client So basically it is a multi tenancy model for an android app (enterprise use) Deploy the ...
2
votes
0answers
473 views

Syncing structured data and files in Android App with an ORM?

I am developing an Android App which I have developed for iOS before. The app requires that structured data and files are synced across android devices. In iOS, I was using Core Data and synced to ...
0
votes
1answer
2k views

Could we drop support for Android native browser on our web site? [closed]

I work with an interactive web portal that has a few single-page apps and complex html structure. The aim is to support all browsers that our customers use. We have implemented responsive web design ...
0
votes
1answer
1k views

Data Sync between Android apps in LAN

I am looking at developing an app which has quite an extensive database. This app will be installed on multiple devices in a LAN and all users can update the data and other users will see the data as ...
0
votes
1answer
736 views

Is it bad to feel guilty using lots of libraries? [duplicate]

So I'm an android programmer,have been programming for about 3 years,but it wasn't until 5 months ago that I started really taking it seriously. Recently I got my first internship,and I'm happy with ...
1
vote
1answer
912 views

offline application development for mobile devices

I am looking to develop an application whereby field staff can complete forms in an offline capacity (when onsite I`m assuming no internet connection) on an Apple or Android device and post the ...