Android is Google's open source OS and system for smart phones and tablets. For user questions, see http://android.stackexchange.com

learn more… | top users | synonyms

0
votes
0answers
359 views

Best practice: Secure Android app online authentication

Currently, I develop an Android App needing online authentication for login (and registration). The main focus is on security. I’m amaing for: keeping the users’ passwords safe and preventing MITM ...
3
votes
1answer
141 views

Android testing - bugs not reproducible [duplicate]

We have the following problem: at the end of the iteration we give our Android app to our customers to test. Our customers report bugs that are not reproducible on our test devices. How can we deal ...
3
votes
1answer
302 views

How to implement await in Android

This is a general question to understand how await in C# works, and particularly I am interested in implementing it in Android. So C# await allows you to go in to waiting mode in the middle of the ...
1
vote
1answer
2k views

Moving a multi-activity android app into a navigation drawer activity

I'm making an Android app and have it structured as a simple multi-activity app. I want to add a navigation drawer to it, and it looks like I will need to completely restructure the app and load ...
1
vote
1answer
234 views

Should data be stored to local database in Android when heavily using REST services?

Let's say I have an application that has constantly changing data. Changes are so frequent that you basically need to refresh data every time you open some screen and keep refreshing it. Is it worth ...
1
vote
2answers
135 views

Android SDK and Iphone SDK limitations

I have an idea that would require triggering a call or text message simply by pressing or dialing a certain number. Example: Pressing 2324 on the pin code. Despite it not being your pin code to ...
1
vote
0answers
38 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 ...
3
votes
4answers
797 views

How to develop cross platform mobile applications with native UI and Javascript backend?

I want to build a cross platform(Android, iOS, Windows) mobile application. I want the UX of the application to be different on the different platforms so that it will be more platform specific and ...
0
votes
0answers
73 views

VPN system to analyze users traffic (onavo-like)

I would like to develop a system that is able to analize the network traffic of people using it. I am interested in the URLs that the users request. Let's say the users targeted are on iOS or Android ...
7
votes
1answer
587 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 ...
0
votes
1answer
128 views

Android Icons Square [closed]

I created an action bar icon for an Android app I'm working on and it seems to downscale my icon. The thing is, it isn't a square icon. The width is greater than the height. Do I really HAVE to ...
1
vote
1answer
91 views

Ensuring submitted hiscores are not fake

I have a small game that I would like to keep track og global hiscores for. The basic is simple: username and score is submitted to a server for storage and later polling. However how do I ensure that ...
1
vote
1answer
74 views

Use camera to analyze homogeneity

We are working with some screens whose in the production process change their state from a transparent state to a colored state. This colored state is achieved to block light transmittance. In this ...
1
vote
1answer
640 views

Guidance on android type app to connect to sql-server

Excuse my ignorance but we've got an application that we'd like to sample out on a mobile app The app is a C#/asp.net application connected to our sql server database. If we are going to write an ...
1
vote
2answers
370 views

Is it okay if we use an arbitrary string as UUID?

I found the tutorial of client (android) and server (pc) bluetooth tutorial from here. But my question is about the UUID. Is that okay if we define it randomly without the proper format? Because I ...
0
votes
2answers
114 views

What is selection and what is projection

I am working on Android with the query() method of the ContentResolver class and it accepts 6 parameters, (uri,projection,selection,selectionArgs,sortOrder,cancellationSignal) for selection and ...
0
votes
0answers
154 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 ...
0
votes
1answer
148 views

What's the best way to store options with multiple/boolean choices in an Android app?

I'm working on an Android social app which connects to a Postgresql database for up-to-date user data and is going to use lookups for dropdown menus, and these lookups will either have multiple ...
0
votes
1answer
107 views

Analogy for Android fragments [closed]

I'm trying to understand the flow of Android apps. I come from a RoR background, so I try and use that background to understand new concepts in Android. Here's my question: How can I think about ...
0
votes
1answer
94 views

Broadcast receiver Or Services

I am creating an "Alarm Clock" app in Android. I learned that we can implement OnReciever() method and write those things which we want the alarm to do after an intent is fired. But I have now come ...
0
votes
1answer
164 views

Sortable listview using SQLite [closed]

I'm implementing a sortable listview using bauerca's library here. This works, but now I need to define some things where I need some help. This is the functionality of my app_ I can create up to 5 ...
0
votes
0answers
220 views

Android From Local DB (DAO) to Server sync (JSON) - Design issue

I sync data between my local DB and a Server. I'm looking for the cleanest way to modelise all of this. I have a com.something.db package That contains a Data Helper and couple of DAO classes that ...
6
votes
1answer
2k views

Why use Android Fragments?

I have read the documentation and some other questions' threads about this topic and I don't really feel convinced; I don't see clearly the limits of use of this technique. Fragments are now seen as ...
0
votes
1answer
868 views

Inserting data to database from Android

I have to build an application where the requirement is that my clients will send data from their Android device and I have to save that data to a database. I have done the part of coding that ...
0
votes
1answer
94 views

Android -> Ruby Server Interface -> Mongodb

I've been wrecking my brain about this for a few days. I'll run my scenario by you and hopefully you can help me. In my head this is how it goes: I have an Android App. I want my Android App to make ...
0
votes
0answers
39 views

Online error reporting without network access

I have developed an application for android requiring no permissions, but the biggest downside of this is that I don't have error reporting. So, I was playing around for the past week with any ...
0
votes
1answer
396 views

Android proprietary app including Apache-2.0 licensed code from Google

My Android app contains some Apache-2.0 licensed code from Google (in-app billing example) and links to com.android.vending.billing library in the form of a InAppBillingFile.aidl file (same license?). ...
0
votes
1answer
284 views

Android DB With Some Multi-Language Data

I have a SQLite Database in my Android app with a "Question" table, among others. That table contains "default" or "pre-loaded" data (in this case the questions asked by the app). Some of its columns ...
2
votes
1answer
937 views

Shouldn't Android's TextView.getText() return String instead of possibly mutable CharSequence?

I've just spent hours debugging some code because I forgot (actually never considered it) that TextView.getText() returns CharSequence that may be in fact a mutable class... Shouldn't it return ...
0
votes
0answers
23 views

versioning data schema in android internal storage

I am using Android's internal storage to hold data for my application and I am trying to find a good way to handle reading data of an older schema. For example, let's say I have serialized and written ...
3
votes
2answers
380 views

Dalvik + Java licensing question

This is a licensing question about the Dalvik and J2SE core libraries. In particular the license governing java.util.concurrent.SynchronousQueue. The license header of the class in the JDK source ...
0
votes
0answers
92 views

how to separate the logic of different views when using android viewFlipper?

I use a ViewFlipper in a dialog. I want to fetch the data from the EditText in both of them and also add click listeners to both of them. I can write the whole code in one big file, but i want to ...
-2
votes
1answer
310 views

calling an abstract method in abstract class

Suppose i have an abstract base class Parent which defines an abstract Method A(some parameter) taking a parameter, also it defines an instance Method B which calls method A(parameter) inside its ...
0
votes
1answer
83 views

What is the meaning of MODULE_LICENSE_BSD_LIKE in Android source code? [closed]

In Android source code, we see files like MODULE_LICENSE_APACHE2, MODULE_LICENSE_BSD_LIKE, MODULE_LICENSE_W3C. An outside observer would think that these specify the intended license that applies to ...
-1
votes
1answer
120 views

is there a way to leave notificationManager and alarmManger alive even when the app is closed?

how would you recommend for me to design an android app where i want it to 1) send location update every 10 minutes 2) to show push notification I want both actions be available even when the app ...
3
votes
2answers
225 views

Tablet development for a dedicated system

I need to make an architectural decision for developing (actually porting) my embedded solution on a tablet. The choice comes down to Ubuntu or Android, so I have some specific questions to help me ...
2
votes
1answer
131 views

Architectural problem for Activity communication in an Android app

I maintain an open source Flickr app Glimmr for Android. There is currently an architectural issue around pagination that I've been trying to solve for quite a while, and would appreciate ideas. ...
0
votes
1answer
315 views

How does package naming affects Android application once deployed

Are there conventions to follow when naming an application package for an Android application? I'm coding in Xamarin Studio, using .Net, so I feel far from this "com.myapp.etc" naming convention. Are ...
1
vote
1answer
73 views

Android apps and GPLv2 classpath exception

My Android app needs javax.activation and javax.mail (both GPLv2 licensed). However, I don't want to make my app GPL-licensed. What are the possibilities to not break the license requirements ...
0
votes
1answer
525 views

In Android can we let a fragment know other fragments?

I think I have found contradictory design guidance within the Google Android documentation on fragmentation. The first statement below advises each fragment be unaware of other fragments and always ...
0
votes
2answers
161 views

outOfMemoryException in android emulator [duplicate]

I'm developing an Android application which is responsible for showing multimedia such as videos and photos to user. I have a certain activity for a gallery of photos. In my phone where I'm ...
1
vote
1answer
927 views

Private apps for iOS and Android

Is it possible to develop private apps for iOS (iPhone/iPad) and Android? With "private apps" I mean apps that do not appear on the public app store, but can be downloaded and used only by selected ...
0
votes
2answers
268 views

Snapchat clone: How do I secure pre-downloaded notifications so that they cannot be opened outside of the app?

Say I'm making a snapchat clone app for Android and iOS. Let's say that I get a snapchat from Baz. I want to pre-download the audio for this snapchat. However, as the developer, I want to secure this ...
1
vote
1answer
2k views

how much memory should android app use [closed]

We are planning to develop an android application. the application will use API and data transfer will be via SSL. I should write documentation and set functional and system requirements for the ...
4
votes
1answer
312 views

What are the benefits of Android way of “saving memory” - explicitly passing Context objects everywhere?

Turned out, this question is not easy to formulate for me, but let's try. In Android, pretty much any UI object depends on a Context, and has defined lifetime. Android can also destroy and recreate UI ...
1
vote
1answer
312 views

Android Data persistence question

I have an android app in which users have sets of items, and each item has about 10 properties. What I do at the moment: items are stored in the server database when the user logs in, I get all the ...
-2
votes
1answer
268 views

Alternative to SIP, voice communication in Android [closed]

Is it exists any alternative to SIP protocol? I want implement voice & video chat option in my application. I don't want use SIP, because I need only simple communication without call for ...
1
vote
2answers
571 views

Use of LGPL libraries on android devices (in a single closed source .apk) [duplicate]

Well this question is actually asked multiple times here already. but the answers are contradictory So that's why I ask it again (maybe time changed things). Can LGPL licensed libraries be used in ...
0
votes
1answer
193 views

Make an app that communicates with an app on a server over wifi [closed]

This is a very broad question, and I'm just looking for a pointer in the right direction more than a specific answer, but it's something I've always wondered and never known. Lets say I have a ...
0
votes
1answer
105 views

Is it good approach to open a keyboard at Actvity start where only one EditTextbox is present [closed]

I am working with Forgot password, where I have single EditTextBox and a single submit button. So whenever I am opening this Forgot password page, my keyboard is opened at the start of this page. In ...