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  • Possible to change the alpha value of certain pixels on iPhone?

    - by emi1faber
    Is it possible to change just a portion of a Sprite's alpha in response to user interaction? A good example of what I mean is iFog or iSteam, where the user can wipe "steam" off the iPhone's screen. Swapping images out wouldn't be feasible due to the sheer number of possibilities where the user could touch and move... For example, say you have a simple app that has a brick wall in the background that has graffiti on it, so there'd be two sprites, one of the brick wall, then one of the graffiti that has a higher z value than the brick wall. Then, based upon where the user touches (assuming their touch controls a sandblaster), some of the graffiti should be removed, but not all of it, which could be accomplished by changing the alpha value on a portion of the graffiti sprite. Is there any way to do this in cocos2d-iphone? Or, do I need to drop down into openGL, and if so, where would be a good place to start my search on how to accomplish this? Ideally, I'd like to accomplish this on a cocos2d-iphone Sprite, but if it's not possible, where's the best place to start looking? Thanks in advance, Ben

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  • iPhone App to Remotely Control Windows Media Center

    - by Barry-Jon
    Can anyone recommend an iPhone app, for non-jailbroken devices, that can be used to remotely control Windows (7, if it matters) Media Center from outside the home WiFi network? The objective is to be able to connect to the Media Center box during the day when I am not home. For instance, if I realise that the new series of [insert very trendy new show here] is starting tonight and I hadn’t set up a series link I could fire up the app and set my machine to record it. Solutions could include native iPhone apps, iPhone optimised web apps or regular web apps.

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  • how do I transfer music to my iphone?

    - by bobdobbs
    I'm using ubuntu 12.04 and I have a first generation iphone,16Gb. The iphone is jailbroken. Under 10.04, I was able to transfer music onto the phone. I used banshee. Under 12.04, ubuntu can see the iphone and it's file system. But can't transfer music. If I just plug the iphone in, rhythymbox can't see the iphone. Banshee can see it sometimes, but can't see it's music, and can't transfer music onto it. Attempts to copy over tracks fail with the error "mp3 format is not supported by the device and no converter was found to convert it" If I plug in the iphone and start nautilus, nautilus can see the iphone, and gives me options for opening it: rhythymbox or a photo management application. If I then open the phone in rhythymbox, I can see the music collection. But when I attempt to copy files over, the syncing process seems to take forever. The only way to end it is to cancel the sync. Afterwards, no new tracks have been added. So, how do I transfer file over to my iphone from ubuntu 12.04?

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  • iPhone :Can we add more than One application in a Single application

    - by iPhone Fun
    Hi all, I do have an Idea to integrate with my application. I want to create multiple application within a single one application. Like and application containing Weather application as well as image processing application + camera based application. I want to know Is this thing possible with iphone application? Please suggest me is this possible with iPhone app development and is it allowed by apple or not. thanks for your suggestion in advance.

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  • Remote Data connection in iphone app

    - by Tariq- iPHONE Programmer
    Hello, i am working with Social Networking iphone app which require remote data connection. So i hired a php developer in order to provide me RESTful services. But when i start working with him, he arguing me that he will not make stored procedures and web services. Instead of he suggested me to pass query as a parameter. Suppose If I have to call Search service, he told me to send POST request with 3 parameters: Query="select * from users", username=abd and password = 123 And i thing there is no such architecture in order to use remote data. Then he is saying it is possible through socket programming. And I am 100% sure this is not an appropriate way to access remote data. This is simply illogical. Thousands of iphone application using REST/SOAP services to make remote data connection He just declined me to provide RESTful services. Please its my heartily advice to all developers that post your own views over here. So that I can show to that developers that these are the views from all developers worldwide.

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  • How can an iPhone access another non-iPhone device over wireless or bluetooth?

    - by Tai Squared
    I'm trying to figure out if an iPhone can connect to another non-iPhone device over wireless or bluetooth and have seen conflicting information. Much of what I've found was before version 3.0 of the SDK came out, when it certainly wasn't possible. Looking at questions like this mention you can't connect to an arbitrary device unless if it's part of the "Works for iPhone" device. Do I need hardware that is part of this program? Looking through the Apple documentation, it mentions connecting two iPhones, not an iPhone to another Bluetooth device. Then there are articles like this that includes this quote ...and with the newly-announced "standard support" should allow file transfer between the iPhone and a computer, as well as between nearby iPhones Other questions mention Bonjour, and the Apple documentation talk about connecting to Bonjour devices, but can an iPhone connect to any Bonjour device? Does it have to have a wifi connection, or can it use Bluetooth? Even if I could use Bluetooth to connect to another device, it won't be available on first generation iPhones and iTouches, I believe. Is that correct? I'm thinking of an iPhone application that would need to communicate with other non-iPhone devices in the area, probably using Bluetooth, but possibly a direct wireless connection. What are the possibilities and limitations of this approach? Is it not possible to have an iPhone connect to an arbitrary Bluetooth device? Does the other device have to be on a wireless Bonjour network that? I'm trying to figure out if it's even possible for this to work or if it's not worth the effort.

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  • iPhone Shell - is there any?

    - by alee
    While working on iphone security architecture, i came to know that i can run applications from other applications in iphone. referring to the following url http://iphonedevelopertips.com/cocoa/launching-other-apps-within-an-iphone-application.html for example, i can put a link in a website with following hyperlink skype:// will result skype to run and call at particular number. Now i have few concerns here. is there a shell running in background in iphone, so that it allows other application to run basic app commands. if the above statement is true then how can i enable or run commands directly into iphone shell? if above statements are false, then could you please explain how these commands are being executed? is this part of iPhone SDK? or this funcationality is iPhone OS

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  • iPhone Shell - is there any?

    - by alee
    While working on iphone security architecture, i came to know that i can run applications from other applications in iphone. referring to the following url http://iphonedevelopertips.com/cocoa/launching-other-apps-within-an-iphone-application.html for example, i can put a link in a website with following hyperlink skype:// will result skype to run and call at particular number. Now i have few concerns here. is there a shell running in background in iphone, so that it allows other application to run basic app commands. if the above statement is true then how can i enable or run commands directly into iphone shell? if above statements are false, then could you please explain how these commands are being executed? is this part of iPhone SDK? or this funcationality is iPhone OS

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  • Apple iPad 2 In April, iPhone 5 in June With New Hardware[Rumours]

    - by Gopinath
    Blogs and news sites are buzzing with the rumours of Apple’s next generation iPad and iPhone devices. These rumours interests the bloggers, geeks and end users of Apple devices as Apple maintains very tight lip on the new features of their upcoming products. The gadget blog Engadget has some very interesting rumours on the release of iPad 2 & iPhone 5 as well the new hardware they are going to have. Lets get into the details if you love to read the rumours of high profile blogs iPad 2 Release Date and Specs Apple seems to be all set to release iPad 2 in April, that is almost an year after the release of first iPad. It’s common for Apple to enjoy an one year long time to release a new version of their products. So if at all the rumours are to be believed, I can place an order of iPad 2 in April. Just like many of you out there, I’m also holding my iPad buying instinct and waiting for iPad 2 as it’s going to have at the minimum retina display,  Facetime features and few game changing features in Apple’s style. The report claims, iPad 2 will have a front and back cameras retina display SD Card slot (seems to be no USB) a dual GSM / CDMA chipset, that lets you use it with both GSM(AT &T, Airte) and CDMA(Verizon, Reliance) telecom providers iPhone 5 Release Date and Specs When it comes to iPhone 5 information, the rumour claims that the new iPhone is a completed redesigned device and it’s slated to release in summer of United States(i.e. June 2011). The device is also being tested by senior Apple executives right inside the campus and strictly not allowed to carry it outside. This restriction is to make sure that iPhone 5 will not land land up in a bar and then in the hands of geek blogs like how it happened with iPhone 4 last year. When it comes to the hardware of iPhone 5 Apple’s new A5 CPU (a Cortex A9-based, multi-core chip) a dual GSM / CDMA chipset, that lets you use it with both GSM(AT &T, Airte) and CDMA(Verizon, Reliance) telecom providers via Engadget and cc image credit flickr/mr-blixt This article titled,Apple iPad 2 In April, iPhone 5 in June With New Hardware[Rumours], was originally published at Tech Dreams. Grab our rss feed or fan us on Facebook to get updates from us.

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  • Are wrapper classes banned in the iPhone OS Developer Agreement?

    - by barfoon
    Hey everyone, I am a little confused after reading this thread on the revisions to the iPhone Developer Agreement. While it lists the languages that are permitted, I don't understand what classifies as falling under what is banned. Does this include wrapper classes? What if the code is written in Objective C but is not an official Apple class/library? I'm wondering about things like: Three20 from Facebook SQLite Wrappers such as this one Charting / Graphing Libraries If anyone could clarify this, I'd greatly appreciate it.

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  • iPhone Simulator 3.x not listed after upgrading to XCode 3.2.3 Beta4 with OS 4.0

    - by Jon
    I've been having some problems, & since you guys are the smartest devs I thought I'd just ask you. When I last installed Xcode 3.2.3 Beta 2 (OS 4.0 support), it had all the iPhone Device & Simulator 3.x. Now, updated to Xcode 3.2.3 Beta 4 (OS 4.0 support), it no longer lists 3.x SDKs for either simulator or device in XCode. When I run an app that was written for 3.1.2, the current SDK is listed as "base SDK missing" I'm aware that 3.2.3 changes the BASE SDK to 4.0, but how come none of the 3.x devices are available either? When I go to: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs The only two files available are: iPhoneSimulator3.2.sdk iPhoneSimulator4.0.sdk However, when I go to: /Developer/Platforms/iPhoneOS.platform/DeviceSupport 3.0 3.0.1 3.1 3.1.1 3.1.2 3.1.3 3.2 4.0 (8A274b) I've tried re-installing the most recent XCode DMG to no avail. Thanks in advance!

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  • Why does CTFontCreateWithName != NULL on iPhone OS 3.1.3?

    - by Tony
    I am following the instructions in the Apple dev docs: http://developer.apple.com/iphone/library/documentation/DeveloperTools/Conceptual/cross_development/Using/using.html#//apple_ref/doc/uid/20002000-1114537 In this case, I'm trying to conditionally execute code, depending on whether or not CTFontCreateWithName is defined. Here is what I've reduced my test case down to: if (CTFontCreateWithName != NULL) NSLog(@"CTFontCreateWithName = %p", CTFontCreateWithName); This prints "CTFontCreateWithName = 0x0", which suggests that it's both NULL and not NULL at the same time. Even though CTFontCreateWithName != NULL evaluates to true, I get an error saying it can't resolve the symbol _CTFontCreateWithName once it gets to the line that uses it. Any ideas? Is %p not the correct way to print out the address of a function? For what it's worth, the example in their docs, UIGraphicsBeginPDFPage != NULL, evaluates to false, so it works for that one.

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  • iPhone: How to read contents from UIWebView XML Document?

    - by David Conlisk
    Hi all. In my iPhone app I'm using a UIWebView to allow the user to browse to an XML document on a website. When the user has found the xml document they want, they click a button below the UIWebView. Then I try to read the contents of the XML document from the UIWebView using: NSString *xml = [webView stringByEvaluatingJavaScriptFromString:@"document.getElementByTagName('rootXmlNodeName')[0].innerHTML"]; This doesn't work for me for XML documents. It works fine in a HTML page, e.g. using "html" for the rootXmlNodeName in the code snippet above. Any ideas? Thanks in advance!

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  • iPhone Simulator 3.x not supported after upgrading to XCode 3.2.3 Beta4 with OS 4.0

    - by Jon
    I've been having some problems, & since you guys are the smartest devs I thought I'd just ask you. When I last installed Xcode 3.2.3 Beta 2 (OS 4.0 support), it had all the iPhone Device & Simulator 3.x. Now, updated to Xcode 3.2.3 Beta 4 (OS 4.0 support), it no longer lists 3.x SDKs for either simulator or device in XCode. I'm aware that 3.2.3 changes the BASE SDK to 4.0, but how come none of the 3.x devices are available either? When I go to: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs The only two files available are: iPhoneSimulator3.2.sdk iPhoneSimulator4.0.sdk However, when I go to: /Developer/Platforms/iPhoneOS.platform/DeviceSupport 3.0 3.0.1 3.1 3.1.1 3.1.2 3.1.3 3.2 4.0 (8A274b)

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  • ipad video format

    - by Mike
    When you use iTunes to sync your videos with the iPhone the videos are always saved with no more than 640 pixels wide, if I am not wrong. What about the iPad? What is the size of videos iTunes syncs with iPad? 1024x768? and what if the video has a dimension below 1024x768? Will it scale up? or will it keep the video at low res and scale when you play? thanks.

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  • Is this a good way to do a game loop for an iPhone game?

    - by Danny Tuppeny
    Hi all, I'm new to iPhone dev, but trying to build a 2D game. I was following a book, but the game loop it created basically said: function gameLoop update() render() sleep(1/30th second) gameLoop The reasoning was that this would run at 30fps. However, this seemed a little mental, because if my frame took 1/30th second, then it would run at 15fps (since it'll spend as much time sleeping as updating). So, I did some digging and found the CADisplayLink class which would sync calls to my gameLoop function to the refresh rate (or a fraction of it). I can't find many samples of it, so I'm posting here for a code review :-) It seems to work as expected, and it includes passing the elapsed (frame) time into the Update method so my logic can be framerate-independant (however I can't actually find in the docs what CADisplayLink would do if my frame took more than its allowed time to run - I'm hoping it just does its best to catch up, and doesn't crash!). // // GameAppDelegate.m // // Created by Danny Tuppeny on 10/03/2010. // Copyright Danny Tuppeny 2010. All rights reserved. // #import "GameAppDelegate.h" #import "GameViewController.h" #import "GameStates/gsSplash.h" @implementation GameAppDelegate @synthesize window; @synthesize viewController; - (void) applicationDidFinishLaunching:(UIApplication *)application { // Create an instance of the first GameState (Splash Screen) [self doStateChange:[gsSplash class]]; // Set up the game loop displayLink = [CADisplayLink displayLinkWithTarget:self selector:@selector(gameLoop)]; [displayLink setFrameInterval:2]; [displayLink addToRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; } - (void) gameLoop { // Calculate how long has passed since the previous frame CFTimeInterval currentFrameTime = [displayLink timestamp]; CFTimeInterval elapsed = 0; // For the first frame, we want to pass 0 (since we haven't elapsed any time), so only // calculate this in the case where we're not the first frame if (lastFrameTime != 0) { elapsed = currentFrameTime - lastFrameTime; } // Keep track of this frames time (so we can calculate this next time) lastFrameTime = currentFrameTime; NSLog([NSString stringWithFormat:@"%f", elapsed]); // Call update, passing the elapsed time in [((GameState*)viewController.view) Update:elapsed]; } - (void) doStateChange:(Class)state { // Remove the previous GameState if (viewController.view != nil) { [viewController.view removeFromSuperview]; [viewController.view release]; } // Create the new GameState viewController.view = [[state alloc] initWithFrame:CGRectMake(0, 0, IPHONE_WIDTH, IPHONE_HEIGHT) andManager:self]; // Now set as visible [window addSubview:viewController.view]; [window makeKeyAndVisible]; } - (void) dealloc { [viewController release]; [window release]; [super dealloc]; } @end Any feedback would be appreciated :-) PS. Bonus points if you can tell me why all the books use "viewController.view" but for everything else seem to use "[object name]" format. Why not [viewController view]?

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  • iPhone development using AS3 (Resources)

    - by woodscreative
    I've just realeased my first game developed for the iPhone using AS3 and the iPhone Packager http://itunes.apple.com/us/app/snapshot-paintball/id407362440?mt=8&uo=4 I want to take the game to the next level but I am not using the native iPhone SDK so I need some other ideas, I am fresh to iPhone development and it's hard to find good resources, any AS3 developers out there willing to share some links? Highscore frameworks and best practices, connecting to Facebook, ui classes/gestures. Thanks.

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