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  • Rotating a sprite to touch

    - by user1691659
    I know this has been asked before and Ive looked through peoples questions and answers all over the internet and I just cant get it to work. Im sure its down to my inexperience. Ive got an arrow attached to a sprite, this sprite appears when touched but I want the arrow to point where the sprite will launch. I have had the arrow moving but it was very erratic and not pointing as it should. Its not moving at the moment but this is what I have. - (void)update:(ccTime)delta { arrow.rotation = dialRotation; } -(void) ccTouchMoved:(UITouch*)touch withEvent:(UIEvent *)event { pt1 = [self convertTouchToNodeSpace:touch]; CGPoint firstVector = ccpSub(pt, arrow.position); CGFloat firstRotateAngle = -ccpToAngle(firstVector); CGFloat previousTouch = CC_RADIANS_TO_DEGREES(firstRotateAngle); CGPoint vector = ccpSub(pt1, arrow.position); CGFloat rotateAngle = -ccpToAngle(vector); CGFloat currentTouch = CC_RADIANS_TO_DEGREES(rotateAngle); dialRotation += currentTouch - previousTouch; } I have got pt from ccTouchBegan the same way as pt1 Thanks

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  • Works on development server but it doesn't on Google App Engine (Sessions).

    - by grep
    Hi, I have this code that works just fine on the development server but when I deploy the application, the session isn't created. What am I doing wrong? HttpSession session = req.getSession(true); session.setAttribute("loggedIn", new String("true")); Edit: The sessions are enabled. What I realized now is that the _ah_SESSION variable is not being created, not even on the development server (although it works).

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  • Keep only "lock" a single app open in iOS?

    - by CT.
    Is there anyway to "lock" open a single app in iOS? My use case for this is simple. There are many apps and games designed for children. While these applications are appropriate for children, many other applications installed on an iPad are not. But even more so than protecting them from inappropriate content, I would just like to prevent them from leaving the application. They accidentally hit the home button or multi-touch gesture out of the application. I know you can turn gestures off. Developers also have links to their website or other related applications. Kids are constantly exiting the application and then bringing the device to me asking "Can you get me back into the game?" every couple minutes. How can I hand a child an iPad with "Angry Birds" running and make sure only "Angry Birds" runs? Cydia or jailbreak tweaks welcome. Thanks.

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  • How to assign a keyboard shortcut to a specific New Window template in Terminal.app?

    - by Mike
    I have a template set up in Snow Leopard's Terminal.app to create a new window or tab with my preferred emulation settings for a particular host that I use. I'd like to assign a keyboard shortcut to that template so that I can quickly create a new window with those settings. I tried using the Keyboard Shortcuts System Preference pane to do it. I can assign the shortcut key to the MyTemplate submenu, but it doesn't work when I try to use it. I suspect because the MyTemplate is listed in multiple submenus -- one for New Window and one for New Tab. How can I assign a keyboard shortcut to my new fancy template? PS. I do NOT wish to change my default (cmd-N) template.

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  • Cross platform development query

    - by Ian
    I'm a Microsoft developer mainly, but there are a couple of small-ish projects I'd like to fiddle with which would benefit from being cross platform. The platforms I want to target are: Windows, Linux, Mac, Android and preferably iPhone, web (running in a browser). I need 3D (Around the level of support seen in something like Minecraft (I'm not writing Minecraft)), some networking. I'm pretty certain Java would work on all except iPhone. Looking at the "related questions" above it's offered up QT (no browser or phone afaik) and also HTML/CSS/Javascript (3D? package for desktop?) The other alternative is to have seperate versions for seperate platforms, developed with some common code where possible. That option isn't something I know anything about. Does anyone have experience of this sort of conundrum? I figured here was better than SO, because I imagine there are compromises which extend beyond technical choice. Finally, this is not a commercial operation, so some of the very expensive cross platform tools are out of the question unless they offer some sort of community edition. Thanks for your time.

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  • Is The Ease Of Windows Phone Development Ruining Its Image

    - by Tim Murphy
    I was reading an article on Mashable recently by a long time iPhone user who is living solely on a Lumia 920 at the moment and giving her assessment.  One thing that struck a nerve with me was her describing the Windows Phone ecosystem as immature.  She wasn’t saying this because of the number of apps or the big names like most people do.  She means the quality of the apps in the store. This hit a nerve with me.  I find it hard to believe that the majority of app on iOS are of any higher quality than any other platform.  I believe in any ecosystem you are going to find some high end, high quality apps, but the majority by default will be from people who are trying to solve a problem but do not have the resources to have top graphics and full blown testing.  There will also be a large number that are just there trying to trick you into giving up some cash. Does any of the mean that we shouldn’t take notice of this complaint?  Of course not!  We should always strive to publish the best quality apps possible.  Don’t do things like leaving default app icons and backgrounds.  Put a little effort into your design.  You should also spend as much time as possible ensuring against crashes and giving the user the best experience possible.  Think through your apps organization and navigation.  Go the extra step of putting it into beta and letting select people use it and give you feedback before going to full release. Remember, if we want people to appreciate the Windows Phone platform we have to make sure we give them apps that they are going to enjoy using. del.icio.us Tags: Windows Phone,iPhone,iOS,Nokia,Lumia 920,Mashable

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  • iPad Web App: Detect Virtual Keyboard Using JavaScript in Safari?

    - by LKM
    I'm writing a web app for the iPad (not a regular App Store app - it's written using HTML, CSS and JavaScript). Since the keyboard fills up a huge part of the screen, it would make sense to change the app's layout to fit the remaining space when the keyboard is shown. However, I have found no way to detect when or whether the keyboard is shown. My first idea was to assume that the keyboard is visible when a text field has focus. However, when an external keyboard is attached to an iPad, the virtual keyboard does not show up when a text field receives focus. In my experiments, the keyboard also did not affect the height or scrollheight of any of the DOM elements, and I have found no proprietary events or properties which indicate whether the keyboard is visible.

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  • Creating a "chat bubble" on the iPhone, like Tweetie.

    - by Coocoo4Cocoa
    Just curious, did I overlook somewhere in the API to display a chat bubble type image as found in the iPhone's SMS application? There's a few applications out there that use bubbles that look verbatim to the iPhone's and I'm wondering if they're using a native widget or their own image. This is also seen in the Tweetie application where the content of the tweets are.

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  • What differences should i make in the MPMoviePlayer sample code(for iphone) to make it work in Ipad?

    - by wolverine
    Its working perfectly in the iphone simulator. But not in the ipad simulator. I am only trying to make the movie getting loaded when the application launches.Copy pasted the same code in a ipad window application. But it loads and only gives the white screen and nothing is happening. Can anyone tell me what changes should I make to work it in ipad simulator just as in the iphone simulator?

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  • how to use appcfg.py for google-app-engine projects created using google's eclipse plugin?

    - by Aadith
    I have created a google-app-engine java project in Eclipse using Google's Eclipse plugin. My previous attempt to deploy failed. Now, when I retry, I get the following message: Unable to update app: Error posting to URL : http://appengine.google.com/api/appversion/create?app_id=mybdaywisherversion=1 409 conflict Another transaction for this user is already in progress for this app and major version. That user can undo the transaction with appcfg.py's "rollback" command. Now, I have always used the google-app-engine features from inside Eclipse only and have not a clue how to run the appcfg.py command. Could not get much help from documentation available over the internet. The only thing I could make out was for mac (I'm on mac), the command to be used is appcfg.sh. Inside Eclipse, I looked where App-Engine SDK is located on my machine and went to that location. Even found appcfg.sh there. But when I try to run it, it only reports the error "command not found". Tried various alternatives to run it (like tried running it with sudo, tried running it as ./appcfg.sh by going to whether its located) but no success Can someone please tell me the step I will have to follow to run the apcfg command?

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  • iphone sdk - Itunes connect how to change device requirements?

    - by Dave
    What is it im supposed to set in the plist so that it shows that it does not work on the ipad on itunes? its somthing to do with this http://developer.apple.com/iphone/library/documentation/iPhone/Conceptual/iPhoneOSProgrammingGuide/AdvancedFeatures/AdvancedFeatures.html but I dont see anything that seems appropriate? Im still kind of noobish so I'd appreciate a really simple answer or as simple as possible. Thanks for your time

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  • Trying to access App.config file for mail settings but fails to work.

    - by mw
    Hello we have a Business Logic Layer which has an Email Services Class. In this class we have a method which will create an email(This part works and compiles fine). However when we try to access the app config file in order to test the method we get an error saying - Can't retrieve the app config mail settings and says all values are null when they are not. Here is the app config section for our code: <mailSettings> <smtp deliveryMethod="Network" from="[email protected]"> <network host="localhost" port="25" defaultCredentials="true"/> </smtp> </mailSettings> Here is there code we use to connect to the app.config: private System.Net.Configuration.MailSettingsSectionGroup mailSettings; SmtpClient client = new SmtpClient(mailSettings.Smtp.Network.Host, mailSettings.Smtp.Network.Port); What are we doing wrong here?

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  • Facebook Connect for iPhone: How to upload an image (UIImage) to user's wall without having to use j

    - by Crowem
    Is there any way to upload an image (UIImage) directly from an iPhone app to a user's wall/feed? All the samples I see are either using a json-embedded link or they use the photos.upload call with album ID (aid) which results in the user getting the image in his photo album(s). What I want to do is to upload an (UI)Image created (by the user) inside an iPhone app and upload to his/her wall. Is this possible? Sample code would be highly appreciated.

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  • iPhone: Core Data: Updating a pre-filled database in future app versions.

    - by Cuzog
    I am creating an app with a database of information that needs to be pre-filled. This data will change in future versions. In the same database, I also need to store user editable information since that user edited data directly relates to the pre-filled data. My question is, if I'm pre-filling the database by creating a duplicate data model in a second app and copying over the core data file before release, how would I handle updates to that data in future versions of the app without destroying the user's existing data? Do the core data migration methods handle this, or must I write custom methods to programatically handle the merge at first app launch?

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  • Server side includes on app engine (<!-- include virtual="header.html" -->)?

    - by Alexandre H. Tremblay
    Hi, I have been trying to figure this out a while. I would like to make my app engine website use basic html and shtml whenever in order to avoid the slow warm-up phase of jsp apps on app engine. This is so that my landing pages load instantly. Basically, I am trying to include an html file into my main html file (index.html - I tried index.shtml). This is the command I try: <!-- include virtual="header.html" --> However it does not work. The server side includes to not seem to get executed in app engine. Do I need to enable these commands somewhere first - or does app engine simply not allow them?

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  • iPhone: CPU power to do DSP/Fourier transform/frequency domain?

    - by mahboudz
    I want to analyze MIC audio on an ongoing basis (not just a snipper or prerecorded sample), and display frequency graph and filter out certain aspects of the audio. Is the iPhone powerful enough for that? I suspect the answer is a yes, given the Google and iPhone voice recognition, Shazaam and other music recognition apps, and guitar tuner apps out there. However, I don't know what limitations I'll have to deal with. Anyone play around with this area?

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