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• Can a Heroku app add/remove dynos or workers to/from itself?

  - by Kiwi

  Heroku allows you to add and remove dynos and workers on the fly and charges you per second that each is used. Is it possible to set up my app so that it can add/remove dynos and workers from itself depending on the load it's under? This paragraph on Heroku.com mentions an API, but I can't find out much more about it.

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• Drop Pin on Default Google Maps from My App in Android?

  - by Praveen Chandrasekaran

  hi all, i have an address for a location. when i click some button in my app. it should redirect to default google map in android and drop the pin to that particular location. how to do that? Any Idea?

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• iPhone:How to prepare app build to my client for testing?

  - by user187532

  Hi iPhone experts, I am a registered Apple developer. I am developing an iPhone application for my client. If i want to give my app build to my client for testing my build, do i need to create a build using my adhoc provisioning profile and send the build as well as my adhoc provisioning profile to my client? If yes, how can they install my build on their iPhone devices? Could someone guide me please? Thank in advance.

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• How can I create and use a web service in public but still restrict its use to only my app?

  - by Glenn

  I'm creating a web service with create/update/delete calls. But for now I'd like to restrict use of it on my own web app and no other clients. How can I have clear text javascript code that makes these calls but still be confident the credentials won't be used elsewhere? My idea is to use server side generated nonces for each request. But I am open to different ideas you guys may have. Thanks.

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• How to display a list of Wifi-Networks in an iPhone app?

  - by SimpleCode

  I found some private (undocumented) APIs but Apple does not allow apps to use private frameworks. So does anyone know how to do this using Apple official packages? like: when youtube app prompts you to the push notification: "Select a Wi-fi network" Thanks in advance.

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• How to add an image field into a Rails app?

  - by picardo

  I'm building a rails app that has an image upload field. I don't have any idea how to handle images in Rails. (The uploaded image would also require some processing as well.) Can anyone tell me how I can go about doing this? thanks.

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• Deactivate Air app created in AS3 after next monday?

  - by Carlos Barbosa

  Hi, i have an application deployed in Air, written in AS3 that client wants to install and test, i have developed a simple license app, but he is pushing for a full license witch he said he will fully paid on next monday. How would you create a procedure in AS3 to deactivate application next monday? How secure will it be? will simply changing machine date will bypass this?

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• How can I save a webpage as an image in my rails app?

  - by Janak

  In my rails app I have a need to save some webpages and display them to the user as images. For example, how would I save www.google.com as an image?

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• Letting users try your web app before sign-up: sessions or temp db?

  - by Mat

  I've seen a few instances now where web applications are letting try them out without you having to sign-up (though to save you need to of course). example: try at http://minutedock.com/ I'm wondering about doing this for my own web app and the fundamental question is whether to store their info into sessions or into a temp user table? The temp user table would allow logging and potentially be less of a hit on the server, correct? Is there a best practice here?

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• Can I customize the Magento app/code/core folder without affecting future upgrades?

  - by mck89

  I found a guide on how to add new attributes to users, it explains that for this operation I must modify some files in the app / code / core / Mage directory (the directory that contains Magento’s modules). But if i make some changes in that folder will this affect future upgrades? Will an upgrade will delete my changes? Should I limit the changes only to my modules to not have problems with updates?

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• How to report a bug in an open-source-app?

  - by Dishayloo

  What if I think, that I found a bug in an open-source-app? What steps can I do, to provide as much helpful information for the programmers, as possible? And how I report best, to avoid to be annoying for the programmers?

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• How to produce an iphone app which calculates the battery status?

  - by Noooooooob

  How to produce an iphone app which calculates the battery status? Is there a particular API that i need to use? Has anyone got a link to any online tutorials?

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• Should I use UIWebView or UITextView to display text in an e-book reader app?

  - by HelloWorld

  I want to make an e-book reader iPhone app. Should I use UITextView or UIWebView to display the text? Which control is used by other e-book readers?

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• iPhone app distribution: What name will appear on the AppStore?

  - by Jack Griffiths

  Hi there, Is there a way to change the name that displays on the AppStore, rather than the name associated with the credit card/apple ID associated with the developer programme? For example, if my name on my credit card was foo, and the name on the apple ID was foo, but I actually want the name displayed on the AppStore (i.e. next to my App's name and details) to be bar. BTW: The programme is individual. Many thanks, Jack

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• Does a simple delphi form app needs any libraries or dependencies to deploy?

  - by peterg

  I need to code a simple form application and I want to make it easy to deploy (without installing libraries or dependencies), I don't want to use visual studio cpp or csharp because clr apps compile with .net frameworks and I have no much experience with mfc and dialogs. So I was wondering which libraries does a simple delphi vcl forms app (those using TForm) use, because I've never had to install anything to run simple delphi apps.

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• How to simulate windows shutdown while debugging (c#/.net winforms app)?

  - by Rory

  I have an issue with my application when windows shuts down - my app isn't exiting nicely, resulting in the End Task window being displayed. How can I use the debugger to see what's going on? e.g. is there a way to send the windows shutdown message(s) to my application so it thinks windows is shutting down, so i can see exactly how it behaves?

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• How to run a service at specific time using JSP/Servlets app?

  - by BugKiller

  Hi, I/m developing JSP/Servlets App,and I want to execute a service at a specific time , for example : For each day at 10:00 AM , delete any attachment from the "attachment" table in the database where column X== NULL. How can I do this in JSP/Servlets application ? I use Glassfish as a server .

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• How to run a GUI app from ssh shell?

  - by karramba

  I can access my linux box by ssh and by vnc. I want to run a GUI application, but directly from ssh, I don't want to access through VNC and click around. So, after logging in using ssh, I want to issue a magic command, so that when I log in through VNC I will see my GUI app running. How can I do this?

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• iPhone/iPad. How do I launch an app from link in Safari?

  - by dugla

  I have an app that I want to be launchable either explicitly when tapped or when a parameterized URL is clicked on on a webpage in Safari running on iPad or iPhone. Can someone sketch the approach for me and/or point me to the relevant docs? Thanks so much. Cheers, Doug

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• Winforms - why does a "Show()" after a system tray double click end up in my app minimized?

  - by Greg

  Hi Winforms - why does a "Show()" after a system tray double click end up in my app minimized? How do I ensure Inthe notifyicon double click event that my hidden main form comes back visible as normal, not minimized (nor maximised for that matter too)

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• A 110 kb .NET 4.0 app needs 7 seconds for a cold start, thats not acceptable !

  - by msfanboy

  Hello, I am using the .NET 4.0 client profile for my app and I run a dual core with 4 GB Ram and a fast hard disk. nothing big is done at the start just showing a generic List in a wpf listview. How can I make the cold start faster of my assembly ?

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• what is the recommended way of running a embedded web server within a desktop app (say wsgi server w

  - by btbytes

  The desktop app should start the web server on launch and should shut it down on close. Assuming that the desktop is the only client allowed to connect to the web server, what is the best way to write this?

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• How do I add a browse file system button to a Visual Studio app?

  - by jpavlov

  I am looking to add a browse button to a visual studio app something simular to the the dialog box in the 'fileupload' tool. I am looking to be able to graphically select any file from my computer or a computer across a network. Can anyone help. Thanks in advance.

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• Is it possible for me to sell my android app on android market using my relative in USA as a proxy ?

  - by Mithraa

  I am an indian resident. Developers in India cant sell android apps on android market. Can anybody enlighten me with any other legal means through which i can sell my apps on android market. I have my cousin who is an US citizen, residing in california. Is it possible to sell my app using her as my proxy. Please do ask me if i was not clear enough.

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• Options and best practices to release free and paid version of the same app to Android Market

  - by Rich

  I have installed a couple of free apps on my Android phone and then later "upgraded" to the paid full version. My first instincts for doing the same would be to create two apps with the same package name so that installing one overwrites the other, but apps in the Market must be unique by package name. What are some patterns and best practices for sharing code and resources for free and paid versions of the same app and any naming conventions or project structures that work for this scenario as well?

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