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  • How to check for server side update in iPhone application Web service request

    - by Nirmal
    Hello All.... I have kind of Listing application for iPhone application, which always calling a web service to my php server and fetching the data and displaying it onto iPhone screen. Now, the thing to consider in this scenario is, my iPhone application everytime requesting on the server and fetching the data. But now my requirement is like I want to replace following set of actions with above one : - Everytime when my application is launched in iPhone, it should check for the new data at the server`. - And if server replies "true" then only my iPhone application will made a request to fetch the data. - In case of "false", my iPhone application will display the data which is already cached in local phone memory. Now to implement this scenario at server side (which has php, mysql), I am planning with the following solution : Table : tblNewerData id newDataFlag == ============ 1 true Trigger : tgrUpdateNewData Above trigger will update the tblNewerData - newDataFlag field on Insert case of my main table. And every time my iPhone app will request for tblNewerData-newDataFlag field, and if it found true then only it will create new request, and if it founds false then the cached version of data will be displayed. So, I want to know that, is it the correct way to do so ? or else any other smart option available ? Thanks in advance.

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  • iPhone - is it IMPOSSIBLE to grab the contents of a CALayers composition?

    - by Mike
    I have a CALayer transformed in 3D on a offscreen UIView (much larger than 320x480). How do I dump what is seen on this UIView to a UIImage? NOTE: I Have edited the question to include this code... This is how I create the layer... CGRect area = CGRectMake (0,0,400,600]; vista3D = [[UIView alloc] initWithFrame:area ]; [self.view addSubview:vista3D]; [vista3D release]; transformed = [CALayer layer]; transformed.frame = area; [vista3D.layer addSublayer:transformed]; CALayer *imageLayer = [CALayer layer]; imageLayer.doubleSided = YES; imageLayer.frame = area; imageLayer.transform = CATransform3DMakeRotation(40 * M_PI / 180.0f, 1.0f, 0.0f, 0.0f); imageLayer.contents = (id)myRawImage.CGImage; [transformed addSublayer:imageLayer]; // Add a perspective effect CATransform3D initialTransform = transformed.sublayerTransform; initialTransform.m34 = 1.0 / -500; transformed.sublayerTransform = initialTransform; // now the layer is in perspective // my next step is to "flatten" the composition into a UIImage UIImage *thisIsTheResult = some magic command thanks for any help! EDIT 1: I have tried jessecurry solution but it gives me a flat layer without any perspective. EDIT 2: I discovered a partial solution for this that works, but this solution gives me an image the size of the screen and I was looking for obtaining a higher resolution version, rendering off screen.

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  • iphone - using a UISwitch

    - by Mike
    I need to implement a view where I need the user to answer several questions using YES or NO. I thought of using a UISwitch but as far as I see it does not allows replacing the ON/OFF messages it shows with YES/NO. Am I wrong? I thought of implementing a segmented control with 2 buttons but this is like using a cannon to kill a fly... Any suggestions on how to do that? thanks

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  • iphone - compiler conditionals

    - by Mike
    Two questions: this code #ifdef __IPHONE_3_0 // iPhone 3.0 specific stuff #else // iPhone 2.2 specific stuff #endif compiles specific codes for specific versions of the iPhone. How could this be transformed to compile for a range of devices? For example: if iphone version < 3.1 or if version = 3.2, and so one... 2) where do I get a list of all conditionals allowed by Xcode? thanks for any help.

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  • iPhone - how to pass an object to a button action

    - by Mike
    I have to pass an object to an button's action... something like [myButton addTarget:self action:@selector(sendIt:MY_OBJECT) forControlEvents:UIControlEventTouchDown]; I cannot set a variable and use that on the method because I am on a static class. How do I do that? thanks for any help.

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  • iPhone - how to pass an object to a button action

    - by Mike
    I have to pass an object to an button's action... something like [myButton addTarget:self action:@selector(sendIt:MY_OBJECT) forControlEvents:UIControlEventTouchDown]; I cannot set a variable and use that on the method because I am on a static class. How do I do that? thanks for any help.

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  • iphone - mutableArray cannot store nil objects

    - by Mike
    I have a mutable array that is retained and storing several objects. At some point, one object may become nil. When this happens the app will crash, because arrays cannot have nil objects. Imagine something like [object1, object2, object3, nil]; then, object2 = nil [object1, nil, object3, nil]; that is not possible because nil is the end of array marker. So, how can I solve that? thanks for any help.

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  • Good ways to dynamically generate the start image of an iPhone/iPad app

    - by Dr Dork
    I'm self-learning iPhone development and I see that one of the aspects of an iPhone/iPad app is the start image that gets displayed when your app is run. I'd like my start image to display some basic info about the user when the app is launched, but that info has to first be collected by the user when the app is first run. That tells me that I either need to dynamically generate the start image after the user enters their information or I need to place a label of some sort on top of my static start image in order to accomplish this. The first time the app launched and before the user enters their info, the start image can be anything or nothing at all, I'm not concerned about this. So, my two questions are this... Can you place controls, like a label, on top of the start image when your app is launched? If not, what's a good approach to dynamically generating the start image after the app is launched for the first time and the user info is collected? Thanks so much in advance for your help! I'm going to begin researching this question right now.

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  • cocoa - making a UIImageView class act like a UIButton

    - by Mike
    For some reason that will take too much time to explain, I have to create a UIImageView based class that has some properties of a button. Imagine a class like the UISwitch (no I cannot base my class on the UISwitch) with two states, on and off. WHen the user selects one state, it runs a method like a button that was clicked and the method receives the sender id. I have already the class more or less working. The class is based on UIImageView. I am having difficulties to understand the following. WHen I create a new button I have a line that is like [myButton addTarget:self action:NSSelectorFromString(myMethod) forControlEvents:UIControlEventTouchUpInside]; This line defines a target and an action to run when the button is triggered. I my case I would need something like [myObject addTarget:self action:myMethod ifState:1] //or another thing ifState:2 I have no idea what kind of code I should put on the class to make this work. Remember that as a button the class should send the "sender" information to identify the object which triggered the action... Can you guys, transcendental gurus help? thanks for any help!

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  • AdMob ad in iPhone app makes App content disappear when "done" is pressed!

    - by nephilite
    Hello All, When I return from an adMob ad by hitting "done" the content of my app has disappeared ! All that remains is a background image I had attached directly to the main window. Oddly I can still hear the result of my touch events from my main screen (which is now gone). This may be related to the issue some people have had regarding a 20 pixel move involving the toolbar...I see something to that effect as the ad starts to overlay. I have admob in another app that is working fine, and I notice when the ad opens in that app the ad content fills the whole screen EXCEPT the top toolbar (it starts right under it). In the new app I'm working on right now this isn't the case. When the ad starts to open I see the tool bar vanish, then the add comes in and fills the entire screen (including the area where the tool bar was); then when I click done and the the ad goes away everything under it is gone as well. It may be worth noting that the App I had working was 2.x and the current app is 3.x (and thus using the admob 3.0 libraries). This is very odd and deal-breaking; I need help ASAP The relevant part of my view hierarchy is as follows: AppDelegate - ViewController - MainView (Ad is in here) There are also some other Views that are children of the ViewController and a UITabbar is also a subview of the ViewController (programmatically declared, not a UITabBar Controller). Any help you can offer would be extremely appreciate...I need to resolve this issue ASAP, release in two days! Thanks!!

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  • Password protect iPhone app

    - by Thomas
    I'm starting a new app, and I'd like to know how to require a password to open it. I've been researching on Google and the Apple Dev Forums and haven't found anything. I was considering a UIActionSheet, but am unsure how to go about doing so. I'm going to keep trying though. Any suggestions here are greatly appreciated. Thanks! Thomas

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  • MkMapView setRegion animation prevents touch events on Annotation Views

    - by Vlad Gurovich
    Hi there! We have a MKmapView with a bunch of Image Annotation where each Image annotation responds to touch by overriding these methods of AnnotationView subclass: -(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event; -(void) touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event Our map region is updated using [MkMapView setRegion:animated:] whenever the new location is received and is far enough from the old location to make a difference. What I noticed is that if we set animated flag to YES the touches on our annotation are rarely detected(probably due to the fact that main thread is busy animating between two map regions. When we set animated flag to NO, everything is fine, but map transition may(or may not) become jerky. The question I have is whether this is an expected behavior of animated flag of [MkMapView setRegion:animated] function or whether there is a workaround for this issue. Thanks in advance

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  • Displaying ppt, doc, and xls in UIWebView doesn't work but pdf does

    - by slugolicious
    It looks like a few people on stackoverflow get this to work but their code isn't posted. I'm using [web loadData:data MIMEType:MIMEType textEncodingName:@"UTF-8" baseURL:nil]; where MIMEType is: @"application/vnd.ms-powerpoint" @"application/vnd.ms-word" @"application/vnd.ms-excel" (BTW, I've seen DOC files use mimetype @"application/msword" but the "vnd" version seems more appropriate. I tried both just in case.) I verified that my 'data' is correct. PDF and TXT files work. When the UIWebView displays PPT, DOC, or XLS files, it's blank. I put NSLOG statements in my UIWebViewDelegate calls. shouldStartLoadWithRequest:<NSMutableURLRequest about:blank> navType:5 webViewDidStartLoad: didFailLoadWithError:Error Domain=NSURLErrorDomain Code=100 UserInfo=0x122503a0 "Operation could not be completed. (NSURLErrorDomain error 100.)" didFailLoadWithError:Error Domain=WebKitErrorDomain Code=102 UserInfo=0x12253840 "Frame load interrupted" so obviously the load is failing, but why? If I change my mimetype to @"text/plain" for a PPT file, the UIWebView loads fine and displays unprintable characters, as expected. That's telling me the 'data' passed to loadData: is ok. Meaning my mimetypes are bad? And just to make sure my PPT, DOC, and XLS files are indeed ok to display, I created a simple html file with anchor tags to the files. When the html file is displayed in Safari on the iPhone, clicking on the files displays correctly in Safari. I tried to research the error code displayed in didFailLoadWithError (100) but all the documented error codes are negative and greater than 1000 (as seen in NSURLError.h). -(void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error { NSLog(@"didFailLoadWithError:%@", error); }

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  • iPhone & iPad versions of same app?

    - by 4thSpace
    I have an iPhone app and would like to create iPad version of it. What is the best way to setup the project when you want an iPhone and iPad version of the app? I don't see that I'm able to use the same code base since the iPad version will have features in it that the iPhone version doesn't. It seems as though maintenance is going to go up with two similar code bases for the same app.

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  • problem with linked libraries or classes??

    - by hemant
    i recently finished one project..now when i create a new navigation project in xcode and try to run it in simulator the application crashes and error in debugger window shows that i am missing some classes which i had used in my previous project(not in this one) and in some cases it gives Couldn't register com.yourcompany.GuessGame with the bootstrap server. Error: unknown error code. This generally means that another instance of this process was already running or is hung in the debugger. is this some problem related to linked libraries??

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  • Problem with testing In App with sandbox test account

    - by Nava Carmon
    Hi, I created a test user account through the Manage User Accounts in iTunes Connect. When you create such an account you have to select a valid storefront for your account. I chose US Store. Now I signed out from the store in App Store settings on my device. Ran the application and tried to perform a purchase. I successfully login with my test account. After I press Confirm when entering my credentials I get an alert, that comes from SKPaymentTransactionStateFailed from the observer. It says "Your account is only valid for purchases in the US iTunes Store". The error state = 0 unknown. Second time when i try to perform the purchase, StoreKit only asks me for a password like the previous login was successful. After entering a password I can perform a purchase. My question is whether it's only because it's a testing account and the application is not actually on AppStore? What should I do to avoid this message or at least to continue the purchasing process? Thanks a lot, Nava

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  • Universal iPad App rejected because of launch crash that I can't reproduce

    - by Enrique R.
    Hello everyone, I'm very frustrated with this problem. After one week of waiting my universal iPad app has been rejected because "is crashing on launch on iPad running iPhone OS 3.2 and iPhone 3GS running iPhone OS 3.1.3 and Mac OS X 10.6.2." Unfortunately I can't replicate the problem, I've tested in debug and release modes and the app works just fine. I even created an ad-hoc configuration and test it in other devices and everything works fine. I should clarify that this is an update to a current iPhone application and I'm using the same distribution profile as the original iPhone app. Also, I checked everything before building the universal app following this entry: http://iphonedevelopment.blogspot.com/2010/04/converting-iphone-apps-to-universal.html Here are the crash logs that Apple sent me: Incident Identifier: 3E0D4A3B-2896-444D-BCBE-6C0CA1A66A90 CrashReporter Key: 18b5124ea5f657227c5f202a27ed707379b3e2e7 Process: Transfer [982] Path: /var/mobile/Applications/E9062465-7EA6-424C-9C61-D9DBCC7C915A/Transfer.app/Transfer Identifier: Transfer Version: ??? (???) Code Type: ARM (Native) Parent Process: launchd [1] Date/Time: 2010-05-04 15:35:57.399 -0700 OS Version: iPhone OS 3.1.3 (7E18) Report Version: 104 Exception Type: EXC_BAD_INSTRUCTION (SIGILL) Exception Codes: 0x00000001, 0x3eaa2188 Highlighted Thread: 0 Backtrace not available Unknown thread crashed with ARM Thread State: r0: 0x00002f90 r1: 0x00000000 r2: 0x385242d8 r3: 0x0000010d r4: 0x00000000 r5: 0x00000000 r6: 0x00000000 r7: 0x00000000 r8: 0x2ffffba0 r9: 0x2fffef90 r10: 0x00000000 r11: 0x00000000 ip: 0x0000000c sp: 0x2ffffba4 lr: 0x2fe08727 pc: 0x00002f94 cpsr: 0x40000010 Binary Images: 0x1000 - 0x25fff +Transfer armv7 /var/mobile/Applications/E9062465-7EA6-424C-9C61-D9DBCC7C915A/Transfer.app/Transfer 0x2fe00000 - 0x2fe24fff dyld armv7 /usr/lib/dyld .... And the one for the iPad: Incident Identifier: 3B170A28-C8E2-4018-8166-E69432A65070 CrashReporter Key: 4a0194e3f60559127faef2b014df605e4c47b981 Hardware Model: iPad1,1 Process: Transfer [533] Path: /var/mobile/Applications/400EE394-7BEE-45CA-942D-DBDC106360FF/Transfer.app/Transfer Identifier: Transfer Version: ??? (???) Code Type: ARM (Native) Parent Process: launchd [1] Date/Time: 2010-05-04 15:37:17.505 -0700 OS Version: iPhone OS 3.2 (7B367) Report Version: 104 Exception Type: 00000020 Exception Codes: 0x8badf00d Highlighted Thread: 0 Application Specific Information: com.erclab.iphone.photodownload failed to launch in time elapsed total CPU time (seconds): 1.150 (user 0.560, system 0.590), 6% CPU elapsed application CPU time (seconds): 0.150, 1% CPU Thread 0: 0 libobjc.A.dylib 0x33561996 0x33560000 + 6550 1 libobjc.A.dylib 0x33564986 0x33560000 + 18822 2 libobjc.A.dylib 0x33564cb2 0x33560000 + 19634 ... The app does not do anything other than loading a local HTML into a web view after the app it's launched so I don't understand why it says "failed to launch in time" Any help will be very much appreciated.

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  • problem while finding iphone memory programatically

    - by sneha
    I am facing a strange problem with my iphone. It shows available memory as 278 Mb from settings and also in the itunes . But when i find it programatically like this NSDictionary *fileSystemAttributes = [[NSFileManager defaultManager] attributesOfFileSystemForPath:NSHomeDirectory() error:&error]; double availableSpace = [[fileSystemAttributes objectForKey:NSFileSystemFreeSize] floatValue]; I am getting it as 458.0 Mb. Can any one help me out why i m having so much difference between both the values ?? As both the values should be same Thanks in advance

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  • Frame load interrupted error while loading a word document in UIWebView

    - by Mugunth Kumar
    I want to load a word document using UIWebView. I used the code provided in http://developer.apple.com/iphone/library/qa/qa2008/qa1630.html to load the document. But not all the documents load successfully. Sometimes I get an error Error Domain=WebKitErrorDomain Code=102 UserInfo=0x145bc10 "Frame load interrupted" The error seems to be very sporadic and I get this error only for some documents. However the same document loads correctly in mail.app. What am I missing?

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  • iphone - testing if an object exists

    - by Mike
    I have several apps in my app that can become nil at some point and I have methods that in theory are used to put these objects to nil. But, if I try to put to nil an object that does not exist, the app will crash. for example... [object1 release]; object1 = nil; //... and after that [object removeFromSuperview]; // this will crash Then I thought, why not testing to see if the object exists before removing... if (object1 != nil) [object removeFromSuperview]; // this will crash too, because object1 cannot be tested for nil because it does not exist How can I check if the object exists before testing if it is nil? something as if (object exists( { if(object != nil)) [object removeFromSuperview) } is this possible?

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  • PyFacebook with Pylons

    - by ensnare
    I'd like to implement PyFacebook in my Python + Pylons application. Where should I include the package? What's the cleanest way to import it? What directory should I put the files in? Thanks!

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