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• Unable to open database SQLITE iPhone

  - by sandy

  Hi there, I am using SQLITE database in my iPhone app. I have a refresh button on my home screen and on click of that refresh button I usually fetch the data from my web service and store it into my database. In normal scenario it works fine but when I click my refresh button 4-5 times frequently my app crashes and My app log Shows "Unable to open the database" I am not sure why I am getting this SQLLITE error. Is there any restriction on inserting number of rows in SQLITE database?

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• How to create piano UI in Iphone?

  - by Niraj

  Hi, I am newbei in creating such piano based UI application. I am developing an application in which i have to use Piano. How to create piano UI in Iphone? How to create it using Interface builder ? or is there any other way to create the piano? I am in urgent need to create such UI,If any body has any solution or any useful code or any Link,which would be appreciated. Thanks, Niraj

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• iPhone: Compressing .app files in command line (Mac OS X) removes CodeSigning

  - by Santthosh

  I am trying to do a simple build automation of my iPhone apps with TeamCity, but having this nagging issue.. When I manually pickup and install .app file from the build folder it works great (syncs smoothly with iTunes and I can see the app on my phone) But when I try to zip this with /bin/zip or ditto...then the zipped contents loose the CodeSigning (iTunes says that it cannot install this app because its not signed) I have tried different combinations of these.. ditto -ck --rsrc --keepParent HelloWorld.app HelloWorld.zip Any more ideas?

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• iPhone Apache server and PHP

  - by kmunky

  hi, i tried to install apache and php on my iphone(i actually did it), i've installed apr,apr-util and Apache BossPrefs Switch from Rock than i tried to acces the server(127.0.0.1 from safari) but i get en error(server couldn't be found). When i'm trying to switch on Apache in BossPrefs it looks like is on but still doesn't work and when i come back to BossPrefs Apache looks like is turned off. What am i doing wrong? is there another thing that i should install? thanks

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• IPhone Accelerometer Determine Motion

  - by Kelly

  Using the accelerometer output, how do I determine if the user (iphone mounted on waist) is walking? Looking for a good algorithm to determine if the user is walking to determine activity transitions- standing-to-walking or walking-to-standing. please help. Thank you for your time.

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• VU meter implementaion in iphone

  - by Sreelal

  Hi, I am developing an aplication for iphone which records audio and save that audio file .I need to create a UI similar to that in Voice Memo app with VU meter .I implemented codes to record audio,but i have no idea about VU meter implementation.Looking forward for a reply ......Thanks in advance

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• Voice transforming using OpenAL on iPhone

  - by eaglelouk@

  Hi there, I've played a little bit with OpenAL, and I must say that it's pretty fast, even on the iPhone. However, I still got one problem. My app is recording the user voice, and repeats what he said using OpenAL. I've modified the AL_PITCH value, but it's currently also changing the speed, which I don't want to ! Is there a simple way to only change the tonality ? Thanks ;)

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• iPhone Javascript execution time

  - by Rudiger

  Hi guys, In the Apple docs it says that JavaScript execution time is limited to 10 seconds for each top-level entry point. If your script executes for more than 10 seconds, Safari on iPhone OS stops executing the script at a random place I plan to have some Javascript run every 10 seconds or so that will do an AJAX query to the server and rewrite just the section of the page necessary. Will this be possible with these restrictions on the device?

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• [iPhone] How to make a neatly bordered webview popup

  - by Tristan

  Hey there, I'd like to open a UIWebView in a neat box in front of my iPhone. I've seen this done by Facebook Connect, when it opens the sign in page for Facebook. Does anyone know how to achieve this? Thanks, Tristan

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• glow when touch the button in the view in iphone

  - by Pugal Devan

  Hi, I am new to iphone development. I have seen the facebook application.In Facebook -- Camera(Click)-- Photo Albums--Thumbnails-- Write a caption View. Here click event is highlighted. In this view where ever i touch, the touch is highlighted. How it can be achieve. Can i try like this. Is there any sample codes available?. Please help me out, Thanks.

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• How to programmatically change iPhone settings

  - by Felics

  Hello, It is possible to change iPhone settings from an application? I want to change settings like enable/disable WIFI, enable/disable vibrations, change ring tone, enable/disable bluetooth, call forwarding, mail accounts, etc. I want to be able to change all settings programmatically. I would appreciate some sample code. Thanks for any help.

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• IPHONE MPMoviePlayer: Playing video under button layers that can be interacted with while video play

  - by nicholas

  I would like to have layers of buttons over video playing in the background on my IPHONE application. Basically, I'm looking to adjust the Movie Player code, in order to allow the application user to tap on different portions of the screen while a video plays and call other commands (for example a video of puppets talking, if you touch one of the puppets, the video pauses and a second (smaller) window appears with a list of information about that puppet; when you exit that list, the video continues where it was paused).

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• trigonometric functions in sqlite in iphone sdk

  - by Saurabh

  Hi is there a way to get sine and cosine of a value in sqlite query in iphone sdk? when ever i tried to use sin() in my query sqlite reported that no such function exists. Any help would be much appreciated! Thanks Saurabh

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• iPhone file corruption

  - by sfider

  Is it possible (on iPhone/iPod Touch) for a file written like this: if (FILE* file = fopen(filename, "wb")) { fwrite(buf, buf_size, 1, file); fclose(file); } to get corrupted, e.g. when app is forced to terminate? From what I know fwrite should be an atomic operation, so when I write whole file with one instruction no corruption should occure. I could not find any information on the net that would say otherwise.

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• How to get Facebook share behavior with Facebook Connect on iPhone

  - by Benoit

  With the standard share at http://www.facebook.com/sharer.php one only needs to specify a URL. Title and thumbnail are automatically pulled from the web page (perhaps with the help of meta tags). With Facebook Connect (I am using the iPhone SDK), I need to supply everything explicitly (URL, title, caption, description, images, etc.). Is there a way to emulate the "share" behavior with Facebook Connect, i.e. let Facebook pull the missing elements from the page being shared itself?

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• alarm clock for iphone

  - by Joy

  I am looking to develop an alarm clock for iphone. But i came to know that i can't run application in the background. So is there any other way to do that job. Please help me cause i'm in serious problem. Thanks in advance

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• Integrating FB connect with Foursquare into an IPhone App

  - by Icky

  Hello. Does anyone know, whether/how it is possible to link your FB account to your Foursquare account within an own IPhone App? This is the functionality implemented by a lot of sites for their Web services.

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• Testing CoreLocation on iPhone Simulator

  - by rjstelling

  Is there anyway to test CoreLocation on the iPhone Simulator? All I require is to be able to set the location myself and have CoreLocation return it.

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• Audio Framework in iPhone

  - by suse

  There are three major frameworks for iPhone audio : AVFoundation Framework CoreAudio Framework OpenAL Library And in turn CoreAudio Framework has AudioToolkit Framework and AudioUnit Framework Is this correct? Suppose I import AVFoundation Framework into my project and it in turn needs a feature which is provided by CoreAudio Framework.. Can it internally access the features of CoreAudio without importing CoreAudio framework into my project?

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• Plz Guide me how can i submit my iphone App into App Store

  - by Anil Kumar

  Hi All, I have Developer's License(by paying $99 during registration) and tested my iphone App on my real Device which is working fine. Now i want to submit my App into App Store as free to access by all. Please, anyone Guide me how can i go further. Thanks in Advance, Anil

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• audio processing in iPhone

  - by Janaka

  I am writing an iPhone application to apply filters to audio input and output the result in real time. I am new to audio processing but using audiounit, the correct approach? I found out how to output data using audiounit but couldn’t figure out how to capture input audio. Is there a sample application showing how to connect input and output using audiounit?

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• iPhone SDK: Set Max Character length TextField

  - by domness

  Hi there, anybody know how I can set the maximum amount of characters in a TextField on the iPhone SDK when I load up the UIView ?

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• Splitting jQuery into multiple files (for iPhone caching)

  - by Marko Ivanovski

  Hi, I was wondering if there is a way to split jQuery into multiple files, i.e. jQuery-1.4.2_part1.js jQuery-1.4.2_part2.js jQuery-1.4.2_part3.js ...and so on. The reason I want to do this is because the iPhone doesn't cache assets larger than 25kb and I really need jQuery to only be downloaded once. If you think there are other workarounds for this I am considering all options right now. Thanks, Marko

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• Attach a formatter to a UITextField on iPhone

  - by charlax

  I'm trying to format an UITextField as user types text, for instance to show separator for thousands. I found this web page : http://www.iphonedevsdk.com/forum/iphone-sdk-development/16512-trying-add-commas.html It seems that shouldChangeCharactersInRange: is not a good solution. I thought of a custom UIView where the view would be updated as the user types digits, yet it would require recreating the wheel...

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• iPhone: Camera following player in cocos2d

  - by Johannes Jensen

  I'm making an iPhone game in cocos2d. I was wondering how I would make the camera / the view follow a specific sprite? would I use the CCCamera class?

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