Android :: Need To Obfuscate Code For Small Scale Paid Application
Nov 3, 2010
I'm nearing the end of a small project to develop an android app. As a first time developer, and a one-man band, I am anticipating selling it at a low price point. I have followed some of the discussions on the Android blog and elsewhere about licensing and obfuscation, and I am in two minds. Part of me thinks that I have spent a long time on the development, so why should I make it easy for people to pirate the app? The other part thinks that it could be fairly time consuming to implement licensing and obfuscation, stop people using the app from non-google supported countries and wondering how much of an issue it is anyway for a small app.
However, if you google even a small app and add .apk at the end the number of "warez" downloads is fairly shocking if it's true. Just wondering whether anyone has any opinions either way, about the impact of piracy on a small developer. I'm not expecting to make my fortune with this app, and would aim for I guess 1000 downloads or so. I may even release an ad-supported version some way down the line depending on how sales held up, which would solve most of the problem I guess.
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Jun 4, 2009
We have a paid app in the market place, we would like to release a demo of the paid app. I was hoping we could just recompile w/ the same package name, but apparently that does not work. I have tried manually changing package name etc, but it is a chore, and it seems that several things that automatically happen in eclipse cause more harm than good when renaming the package name. Which brings me to my next question. If having a new package name is the only way to accomplish this. Is there an easy way to fork the paid app, where keeping the changes synchronized is easier? Some kind of Source Control?
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Feb 22, 2010
this question is now obsolete, as Android Market includes much more countries and such services as PayPal Mobile Payments Library are available.I'd like to sell my Android application, but I live in Poland and in my country* Android Market supports only free apps (we cannot sell and we cannot buy too).What is the best way to sell application in such situation? I can accept PayPal money transfers, but I don't know how to distribute APK package without exposing it to getting pirated. Did someone tried it already and succeeded? you may be surprised, paid apps are supported only in 12 countries worldwide.
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Jul 7, 2009
I have read about using a 'dip' scale rather than just px, this is straightforward to implement in XML. But how do I adjust values accordingly in the java code? For example:
tv.setTextSize(20)
will result in text of size 20 px right? What's the quickest way of making this 20 dip, other than adding a resource?
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Jan 19, 2010
I have a project which I want to split into a paid and a free version. I do not care to double my management of the res/ folder and would even like the Android Manifest.xml to be the same file except for the package line. Worrying little about hacking (at this stage - my app is not copy protected anyhow so other avenues of vulnerability are already open), it might be sufficient for me to have all the logic in the free app, and to enable/disable functions based on the app's own package info. What strategies have others used in this regard? I have soft-linked the source from a new Android Eclipse project folder tree to the existing one (the new is to become the paid version and the old one will become the free one with some logic paths being conditionally stubbed at runtime), reserving the new source file hierarchy in the new one to the sole purpose of containing an My Main Activity.java file (as it will need to be in a different package- folder than the one for the free app's). But the res folder appears as though it might be more difficult.
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Jun 30, 2012
the cpu scaling of Android.. First, do the system use the lowest frequency when not in use? Aka screem off..After i unlock the phone do it always scale to max frequency or scale it based on the cpu needed? For example write a text makes the phone use thr same freq as playing a game?
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Sep 27, 2010
As the title says, where can i find small application creation jobs for Android.
Please don't tell me 'freelancer' because I have already checked there.
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Jan 20, 2009
I am trying to create small simple application on emulator. I want to create button and display with some click event. I am not able to use findViewById method with R.id.abc. It always gives error as R.id cannot be resolved.
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Aug 18, 2010
I'm building a game with graphic assets in hdpi resolutions (hence I put the files in drawable-hdpi directory). I don't want to have a corresponding mdpi resolution of the images, and I will code everything in 240-dpi based pixel coordinates.
Is it possible to still allow mdpi and ldpi devices to run the application, by automatically scaling the graphics from the hdpi version? Optimize for high-dpi devices only but still support (small- and) medium-dpi screens.
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Feb 27, 2010
What is the best approach to managing a small SQLite database private to the application? Open (getWritableDatabase)in OnStart and close in OnStop in each Activity?Open in OnCreate and keep open til the user quits the app (where would you put close?) Open, do work and close as soon as possible each time it is needed?
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Sep 18, 2012
There is an application called QVOD that downloads videos to a local cache on the Android device, and for many devices it works just fine. For many devices however. If the device is running ICS, frequently the playback features stuttering audio. I have found where QVOD saves the video files, although it separates them into several pieces, making it difficult to just browse to that directory and use an alternative player, such as MXPlayer. I have found that if you cat the files together into one RMV file, you can then watch it with another application and it plays just fine. That means the audio codec built into QVOD is almost certainly the problem.
What I'd like to do is build a simple graphical app that allows you to view the videos in that folder and automatically cat the files together so you can either save them or view them in another player. Having some background in programming, I understand the process flow of this is very simple. Unfortunately, I do not know how to program in java. Ideally, it would be great if the makers of QVOD addressed the problem directly, but having spoken with them on QQ, it doesn't seem they have any interest in doing so.
I don't see this program taking more than a hundred lines or so, and would be a great contribution to the Android community.The application will SURELY get a lot of attention, because it will not only allow those with audio problems to enjoy their videos, but it will allow those that aren't having problems viewing to at least save the files and also have a CHOICE of what application to view them in.
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Nov 6, 2010
Is it possible to install a paid for application on my phone and my tablet or do I just have to pay and install on both devices?
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Feb 15, 2010
i have published my application in android market but i am unable to download my paid application from android market. i can get my free application in android market. i am accessing from india. how i can access united states android market?
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Nov 16, 2010
This comes up because I am changing the model for my freed and paid apps. Besides all the other things I need to figure out to build this (I'm trying the library method), I'd like to transfer preferences smoothly from DEMO app to paid App. I'm sure that some of you are old hands at this and can give some advice. I've tried the Demo and License, where a license app will unlock the Demo app and make it full.
The Market users can't handle that. My customers didn't want to have two app icons once they installed the license. So I made it invisible. Now I have users that say they can't "open" the license after purchase. It states very clearly in the app description that they need to install the free version first, but I've discovered that not everyone reads that vast 325 character description before buying even some of the most expensive apps on the Market.
I've decided not to fight it. I do believe that customers will be more happy overall and there will be less refunds, if they do try the demo app first. It gives them 16 days to try instead of 24 hours to get a refund. But I'm not going to force that. So, I'll be going down the Demo and Full model route. Just as an aside, I really wish the market would support time limited trials. There is difference between real support and faking it as I have been.
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Oct 14, 2010
I want to sell an application developed by me, but this service is not supported in my country (Romania).
So I want to ask a friend of mine who lives in a country (France or US) where selling paid applications is possible to help me with this.
Now I don't know exactly what to tell him about the process:
What is required by his side ? A bank account or a credit card ? How the money are transferred to him ? What exactly Google checks to verify if the developer is in one of the supported countries ?
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May 3, 2010
I have an issue related publishing the paid app to android market. (My application is internet connection based app.) If I've put the app to the android market, can user who bought the app pass to anyone? How is its security (I mean safe of .apk file)? Also, what is payment tool of android market? My main point is choosing the best way to link paid user to our system. Actually I don't know how to link paid user account to my system(by email address or device unique ID? What is better way?).
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Oct 2, 2009
I have an application for which I am planning to release both a free and a paid version. I found that this will require the two versions of the application to each have different package names.
When a user upgrades from the free version to the paid version, the paid version needs to be able to access the database built by the free version. I am trying to understand the best way to make sure that upgrade does not disrupt the user's data.
I have read that the AndroidManifest file setting for shared user id should allow both applications to access the same data. I don't need the applications to both be running simultaneously, as I expect the user will uninstall the free version after upgrading to the paid version. However I need to make sure that if possible the user's data is not lost and is still accessible and usable by the paid version of the application.
I have read about a problem with the shared user id where uninstalling one application will cause the other shared application to stop working because its permissions get deleted, (see details at http://code.google.com/p/android/issues/detail?id=2773 ) Apparently this issue is fixed in doughnut, but since all the currently deployed android phones do not have doughnut yet, this still seems like a significant problem.
In addition to the database information, I would also like to preserve the user's default shared preferences settings after the upgrade. However the default shared preference settings are not as critical as the data in the database.
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Jun 10, 2010
I want to have a free version and a premium version of the same application. When people buy the application, I want them to be able to "upgrade" without losing their data, i.e. the premium version should install over the free version.I want to use the same code base and just switch a setting to build the premium version.
Andoid Market does not let me convert a free app to a paid app, so the trivial option is not available.I am curious if someone has tried this successfully. How does Android Market identify an application - will it think that the premium version is a different app and just install it in parallel?
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Jul 16, 2010
I've been rooting my phone for about a month now, and I'm currently running Kangerade 5.0.9 (great job Jrummy) but I have a quick question about Titanium Backup. I have a feeling you will all be hesitant to answer, but Im going to ask anyway. Note I have no intentions of stealing here, Im just curious to see if this is a bug.
If I purchase a paid application from the market, back it up, and then refund the application, would titanium backup be able to restore it?
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Jun 11, 2010
I have read on the market support that "If you have previously published an application for free, you cannot change it to have a price". But I was wondering, if at the contrary I change my app from paid to free and some time after I want to re change it from free to paid! Can I? And if yes, Have I to wait some period (I have read something like this in the contract)?
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Aug 12, 2010
This is my target:
I need an Android application which should be able to fetch data from the web (maybe an .apk or a .jar) and launch "something" from it.
If it's a "trivial" class there's no problem at all. This is my Loader
CODE:.............
The problem is that the code I want to execute looks very like an application, which should have a "simple" view and some interaction on it.
I'm not able to invoke the "onCreate" method of my downloaded class.
I guess I've three streets:
I look for a method which silently install the application and then runs it (is it possible?) I understand how to initialize a second "application" inside my own one (with its own R and all stuff) I write my master program to fetch data from the web and construct pages dinamically.
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Jan 28, 2010
Are there any apps that would allow me to write a message, convert it to a QR code, then save that graphic to the phone, or even share it via email? Bar scanner is great for sharing links as QR codes, but a notepad I could type in would be cooler.
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Jun 5, 2010
For all of you android devs out there that have the Android simulator running on your computer, you know that there are a few built in apps that are already installed on your 'phone'. I had an idea for an app that would utilize a function that is already being done in the spare parts app that comes already installed. I went on to the android developer site, dug through the source code files, and found the spare parts app, and am now trying to set it up so that running it from eclipse on my machine actually runs the app in the simulator.
In other words, I want to be able to make changes to and adjust some of the things in that app for my own needs. But it won't compile, because of a number of different errors. How do I get that source code running on my local machine? Is there some special trick that I just don't know about? I thought that if I could get the source code than the rest would be easy, but it isn't being too easy.
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Apr 9, 2010
I'm wondering if it's possible to have an app that has a portion of its code implemented using Android 1.5 (API Level 3) and part using 1.6. (For example maybe implementing one of the app's activities in 1.6 while the overall app is in 1.5)?
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Nov 19, 2010
I have two applications with two different application package names.
I want to use first application GUI code in the second one with out rewriting entire code.
But my first application using resource import statements in so many places.
Even i am able to compile it, i am getting runtime exceptions.
How to prevent these exceptions and make use one application GUI code in another?
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Feb 7, 2012
i want to develop a android application named letC ,the main moto of the app is the user has to write c code and has to execute with in the application.
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Nov 18, 2009
I would like to know how to execute code before exiting application. My application is composed of several activities. When the user starts the application (from the launcher menu or from a notification in the status bar), he goes in an InitActivity where I process some initializations. From user experience, application always restarts. One of these initializations is to init a network manager and start a thread that periodically sends a network request to notify a server that application is active.
I need to process some end operations, like stopping this thread when user quits application, for example by pressing the HOME key or BACK key when he's in the root activity. However, when the user press the HOME key, application is still running in background.
Q1 : is it possible to execute code when exiting application (I see the onTerminate() method of the class Application but it seems not to be always called)?
Q2 : Is it possible to force application exit (activity method finish () only destroy the current activity, not the application)?
Q3 : Is it possible to handle HOME key press (onKeyDown() is not called when this button is pushed)?
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Nov 9, 2010
I have downloaded the Source code of Android 2.2. Where can I find the default application source code of Android (Calculator,Calender etc on pressing Home Button).
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Jul 7, 2010
Where can I find the source code for the Android Twitter Application?
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Jul 30, 2010
I want to add <uses-permission> via programatically .I want to telephone number of the device.For that i need to access the phone state.But i need to add that permission only with Java code at runtime. Is it Possible to do so. (or) Can you suggest any alternative way to read the telephone number .?
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