Android : Recommended Way Of Creating A Demo Version Of Application
Apr 23, 2010
What is the recommended way of creating a demo version for an application. Basically, the demo version will be fully functional, but will be limited to running it 25 times. My worry is that if the user uninstalls and reinstalls, the count will be reset. I thought about writing a data file to the SD Card with the count of executions (hoping that would persist after uninstall), but I do not want to add that permission if I can avoid it. Any suggestions on how to have some type of demo flag persist after an uninstall?
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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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Jul 10, 2009
I want to release a demo version of my app. I added a restriction that the app could only be used 5 times by storing a counter in the db. However a user can easily uninstall and install the demo again! What the best way to manage this?
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Jul 21, 2009
I'm finishing to write my game and i'm thinking to participate to the ADC2. Since I also want to start selling the game to the android market asap, I want to know if is it possible to make a free demo version of the game to be used for the contest and a full paid version that is available to users that want to buy it before the contest has finished. Is it a violation of TOS or it can be done at my own risk (because the demo valued by judges is not the complete version?
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Aug 20, 2010
I haven't seen a post on this in a while. Does anyone have a list of recommended or not recommended browsers? Maybe some pros and cons of each.
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Nov 14, 2009
I want to download a WiFi Toggle On/Off App on my Sprint HTC Hero. I assume this will save battery power. Correct? This will save battery power because when it's toggled off, it won't waste power searching for available WiFi networks when I don't need to be looking for them. Correct? I can go into Menu, Settings (so many steps) to change my settings to turn this on and off. So, there's Apps on the Android Market that can be downloaded to have a WiFi - On and Off - toggle switch. I went to the Android Market and there were so many!
Question:
What is the most recommended - simple - practical - no bells and whistles - most reliable - absolutely best that nobody beats it - WiFi - On and Off - Toggle switch? I see this one from Curvefish is quite popular: WiFi OnOff v1.2.1 Application for Android | Tools
Is this one the most recommended?
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Jan 4, 2010
I'm looking to create a mobile version of our website/web app. What's a good way to provide the best, most fully featured version.Part of the reason for creating it is instead of an iPhone app, so I'd like to offer an iPhone web app that takes full advantage of the iPhone's version of WebKit (so CSS animations, being able to rely on good javascript support etc). However, I'd also like the site to work well on other smart phones as well as more basic mobile phones as well.Do I create two sites (Mobile WebKit and basic mobile web) and redirect based on User Agent? Can I create one site that degrades well? What are the possibilities, and how do other people handle it? Also: are mobile web simulators worth a damn? I have an iPhone, so can test easily on that. If I want to test on Blackberry/Palm Pre do I really need a device or are there reliable simulators?
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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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Apr 19, 2010
So my wife and I went over on our text messaging (I'm glad she went over too, or I'd gotten an earfull. Now she can't say too much). Anyway, any recommendations for an SMS counter app? I dunno if Handcent has one built in, but I'd like one that retains all data between changing/updating ROMs. I have the 250 messaging package. Text messaging is ridiculous in price.
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Nov 1, 2010
Right now I've finished an application that I want to distribute on Android Market. It will have a payed version and a free version with some limited features. While developing it, I was doing obviously just the main project of fully featured release. And now after finished I've included a "boolean" DEMO_VERSION=true that restrict those features. My question is if it's possible to generate both apk from the same project? Or should I create new project with the same source but changing the Java package to tell android market that they're two different applications.
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Feb 7, 2010
<html>
<script language="javascript">
/* This function is invoked by the activity */
function wave() {
alert("1");
document.getElementById("droid").src="android_waving.png";
alert("2");
}
</script>
<body>
<!-- Calls into the javascript interface for the activity -->
<a onClick="window.demo.clickOnAndroid()"><div style="width:80px;
margin:0px auto;
padding:10px;
text-align:center;
border:2px solid #202020;" >
<img id="droid" src="android_normal.png"/><br>
Click me!
</div></a>
</body>
</html>
What is "window.demo.clickOnAndroid()"? I know that clickOnAndroid is a method in my Android application. But what is window and demo? My file is called demo.html. Is that it?
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Apr 18, 2010
I have started creating database for my application. It is working well. The data is also getting stored.But the issue is that i require dropping table, that already exists, every time i run the application.
But one thing i found is that whenever i change the version of the database in my code, the table gets dropped. But i would like to know whether it is possible to drop table without changing the version number of the database.
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Sep 16, 2010
Is it possible to install a java library in a folder and have this code dynamically linked into another program? In other words, i have a major code base that would be shared among different projects.Assume that all them are created with the same shared user id.
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Jun 20, 2010
I want to have an options menu that is available to all Activities in my app (on pressing the MENU button). I've been doing this by creating it in onCreateOptionsMenu(Menu menu) for each Activity but this seems redundant. Is there a way to create it in one place and have it available in all Activities?
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Nov 10, 2010
I'm developing an Android application that consists of:
a lightweight background service that logs events to a DB
a heavier GUI application that summarizes these events and displays graphs.
I'm having trouble creating the service part, though. The graphic application can use quite some RAM, and when it goes to the background, the OS closes it after some time of not being used.
The problem is, when the application gets shut down, so does the service. This is bad because this keeps me from recording further events. I don't care if the application gets terminated, but the service needs to keep on running.
I have tried numerous ways to keep the service alive, like having it use threads or a differently named process than the main app. Nothing has worked, and I have found no help on any of the android developer pages or forums.
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Oct 27, 2010
In my application, I am going to create a few listviews that are dependent on the listview before it. For example,Then, depending on user choice, will go next screen, let's say, it contains a submenu of each type of school,that may be different or may be the same to other states.What I want to know, is how to populate these different lists dynamically as the user goes on? I don't know what the best of doing this is, and I seem to be looking in the all the wrong places because I keep getting stuck. Once all the data is added into whatever structure is used, it will be static. I basically just need help as to how to code information into some sort of hashtable or anything of the sort that can be easily referenced, and later when the Application is updated, be able to add more schools/states/submenus etc.
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Oct 25, 2009
I would like to show the current version of my application. Is it possible to extract the values "android:versionCode" and "android:versionName" from the Manifest with any Java method?
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Nov 21, 2009
I have a Motorola Droid and my wife has the HTC Droid Eris. I've noticed that one of the apps that I have installed (24 Clock by Talionis Software) I cannot find when I use the Eris to search the marketplace. I used the "search" function, I scanned the QR code, I searched "pub:"talionis software"". Nothing, nada, zip.Is this because the Eris is running Android 1.5 vs 2.0 on the Moto, or is something more sinister afoot? Is there a difference in the marketplace software?She asked (told) me to put the "24" digital clock on her phone, too, and so far I'm coming up empty.Do some apps not play well with different Android versions?
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May 3, 2009
Can someone explain the current situation with bluetooth from a developer point? I take it the latest 1.5 version still does not have development of bluetooth apps? If not, when is this going to happen? It's been in J2ME for years! I saw some post about it being available via compiling the framework, what does this mean? Does this mean an app can be done that uses bluetooth or is this just for developemt only? I am only just starting to look at Android, so totally new to this. However, if I can't do bluetooth SPP connections then it's no use to me for what I want, so I'll not bother for now.
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Apr 10, 2009
I made a mistake and I still had the debug version of my app (from Eclipse) on my phone when I tried to install a signed version. The install failed, but I could no longer access the debug version in Manage Applications to un install it. I was at work and couldn't reinstall the debug version in order to uni nstall, so I did a complete factory reset of my phone (using My Backup Pro to backup stuff). Now I can install my app. However, now I notice upon reboot that my app loses all of its data from shared preferences. I'm not entirely sure that it's not a problem of mine somehow, but does anyone know why it is doing that and how I can fix it? I may have left the debug gable. true on in the version I'm trying to test. Would that cause this problem?
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Aug 22, 2010
Hw to get free android apps with 2.2 version on the backflip?
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Mar 12, 2009
If I upload a new version of the application. Does the user knows that there is a new version of the app?
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Jun 7, 2010
I wanna know if there is anyway to determine not through the packages, but through applications the version of an application which isn't the current application.
let's say right now i am in the scope of app A. and i wanna run an activity from app B. i wanna check before the version code of app B.
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Aug 5, 2010
We have a set of 3-5 android applications that we have developed for an enterprise to integrate with our back-end. How do we create an installer system that upgrades applications automatically. We were thinking of getting version numbers and querying the backend to get current versions and downloading them. How do I get the version number of an application in Android?
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Sep 10, 2010
Just wanted to know if anyone could point me in the direction of a decent Android version of this application.
I know you can kinda mimic it's functionality a little bit by simply using the built in calendar, but the idea of an integrated timetable, previous grades, grade calculator, assignment deadlines (a to do list essentially) and all the other stuff it's got look really nice. The nice thing about it is that it's all in one application I think. I've had a look around but so far haven't found anything... any ideas?
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Jun 30, 2010
I want to implement the versioning feature for my application manually. For that I intend to compare the application version currently installed on the device and the application version present on android market. I can get the installed application's version using PackageManager , but how to find out the version of the application on the android market programatically ?
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May 27, 2009
I have Android Dev 1 phone. I try to install my app to phone. But error is occurred. How can I solve this problem? I use SDK 1.5 version. but when I made app, I use API 1.1.
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Oct 30, 2010
I am releasing two versions of an app--free and paid. The differences between the two are few, and I would like to release both using the same codebase (maybe a different constant defined for the other build?). Has anyone done this? Can someone point me in the right direction?
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Oct 7, 2010
I have an application that's offered in and outside of the MarketPlace.Is there a way of determining from within the code where the application came from? I've got a few indirect methods
1) I could simply infer from whether they have "Allow installation of non-Market applications" ticked.
2) Or I could just make separate builds and make it explicit in the code.
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Aug 31, 2010
IŽd like to show a simple information dialog with an Ok-Button, about whats new in this version, but it should show only at the first start. Whats the best way to implement this ?
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