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  • CADisplayLink stops updating when UIScrollView scrolled

    - by Tricky
    Title is quite self explanatory, but I have some animation being done in a loop triggered by CADisplayLink. However, as soon as I scroll a UIScrollView I have added to my view hierarchy, the animation stops immediately, only to return again when scrolling has completely stopped and come to a standstill.... Anyway to cancel this behaviour?

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  • How to get the location (x,y) of a CCLabel that is a child of a CCScene?

    - by RexOnRoids
    (learning Cocos2D) After creating a CCLabel and adding it to a CCLayer like this: //From HelloWorldScene.m // create and initialize a Label CCLabel* label1 = [CCLabel labelWithString:@"Hello" fontName:@"Marker Felt" fontSize:10]; label1.position = ccp(35, 435); // add the label as a child to this Layer [self addChild: label1]; How do I determine when a user has TOUCHED the label on the screen?

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  • iPhone Server Mirror Functionality

    - by hecta
    My app reads a from decentralized (so I have the ability to change servers if I have to) xml file with TBXML parser. The xml file consists of only a few lines like this <xml> <mirror url="http://www.someserverabc.com/data.xml" priority="1"/> <mirror url="http://www.someservermirror.com/data.xml" priority="2"/> <mirror url="http://www.anotherserver.com/data.xml/" priority="3"/> </xml> So I have the corresponding priority to the url. Now I want to check if server with priority 1 is reachable, and if not, try the 2nd one and so forth. If a server is reachable I'm parsing XML with the url from the mirror list How could I implement this approach and is it even a good approach or how can this be tweaked? (is XML even desirable in the first scenario)

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  • How can I set different sound for different players by using [[SimpleAudioEngine sharedEngine] playE

    - by srikanth rongali
    I need to set sounds for different players in my game. There are 10 players. And I have 10 sounds. The players are loaded int his way for( int i = 1; i <5; i++ ) { [playerAnimation addFrameWithFilename: [NSString stringWithFormat:@"Player %02d gun draw_%02d.png", playerNumber, i]]; } How can I set the sounds in this way by giving the filenames. And player1 shoots player1sound should play. How can I do it using [[SimpleAudioEngine sharedEngine] playEffect:@"player1.sound.wav"];

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  • Cannot change UIImageView frame in a custom table cell.

    - by jkally
    I have a custom table cell. In it I have put (via the IB) an image view of a certain frame In 'cellForRowAtIndexPath', under certain conditions, I would like to modify the frame of this UIImageView, so I write something like: UIImageView *imgv = (UIImageView *)[cell viewWithTag:1]; CGRect r = CGRectMake(20.0, 20.0, 10.0, 10.0); imgv.frame = r; But nothing expected happens (The frame does move a little though not to where I want, but doesn't change its size at all);

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  • Problem with Xcode and iPhone preference files

    - by CyDummy
    Hi, I created four language files for my app: two for the preferences and two for the strings. I added them into Xcode and it works great on the phone but the string files are shown as "Localizable.strings (de)" and "Localizable.strings (en)", while I have two files called "Root.plist" under the "Settings.bundle" in the groups "de.lproj" and "en.lproj" (see screenshot).When I don't add the two "Root.plist" files instead of "Settings.bundle", I get what I want ("Root.plist (de)" and "Root.plist (en)") but I have no "Settings.bundle" in Xcode. Is somebody out there who can help me to a get what I want?

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  • How to implement a UIViewAutoresizingFlexibleHeight to a UIScrollView using Objective C in iPhone SD

    - by AppleHack23
    Hello, I'm working on multiple applications for my school. I just need this last bit of code and I was wondering how I could implement a UIViewAutoresizingFlexibleHeight into the app for each textfield. What this does is it makes the textfield pop above the keyboard, rather than over lapping it. I have already implemented a UIScrollView, so if someone on here could be pretty descriptive, or post a link to a video, that would be well appreciated. I am new to coding. Thanks very much!!!!

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  • How to reuse actions

    - by Kriem
    Of the three parts I want to move, only the last one actually moves. I can't seem to "recycle" the ease action I created. How is this done the correct way? - init { // initial setup [self moveParts]; } - (void)moveParts { id action = [CCMoveBy actionWithDuration:1 position:ccp(0,160)]; id ease = [CCEaseInOut actionWithAction:action]; [part1 runAction:ease]; [part2 runAction:ease]; [part3 runAction:ease]; }

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  • Core Data - Best way to save a "number of items"

    - by Daniel Granger
    The user will have a static list of items to choose from. Using a Picker View they will choose one of the items and then select how many of them they want. Whats the best way to save this in core data? A Struct? struct order { NSInteger item; NSInteger numberOf; }; Or some sort of relationship? Many Thanks

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  • iOS - Losing in-app subscription?

    - by user3280451
    I've just built an iOS app that uses a non-reoccuring subscription model. You hit "buy" and then when the client device receives the receipt from the Apple server it whizzes it off to my server to validate it and add the subscription to my user database. If the connection fails before my server has responded then the request is cached, ready to be resent the next time the client comes online. My problem is, what happens if the connection fails between when the user hits the buy button and the receipt is received by the client from Apple? Theres no way for it to know that the purchase has been made? Presumably I should add a "restore purchases" button that sends all of the users receipts to my server which checks if they've already been validated and their respective subscriptions added to the database? Is there a less intrusive way of doing this?

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  • Read Core data in Serial Queue for iPhone app

    - by user1277209
    I have an app which uses Core data and the values are fetched from a link on internet. This runs absolutely fine when I am creating a serial queue in AppDelegate and I am not facing any problem with the same. Now, when I am trying to re-create similar scenario in a UITableViewController and executing the same in a serial queue but when the control reaches NSError *error; NSArray *match = [context executeFetchRequest:fetchRequest error:&error]; execution control disappears and then this code remains in the execution till eternity. Can anyone help me with what exactly is wrong here? FYI, I am passing the same ManagedObjectContext to the serial queue.

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  • The delegate method "clickedButtonAtIndex:" is not called.

    - by sagiftw
    Hello everyone! I have created an alert view with two buttons using the following code: UIAlertView *alertView = [[UIAlertView alloc] initWithTitle: title message: msg delegate:nil cancelButtonTitle:@"Replay" otherButtonTitles:@"Highscore", nil]; [alertView show]; I want to run some code when one of the buttons is clicked. In order to do so, I have added the following method to the delegate.m file: - (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex { if (buttonIndex==0) //Run some code else //Other code } But this method is not called when I press either of the buttons! Can someone tell me why? Thanks in advance, Sagiftw

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  • loading record into detailview

    - by summer
    please please i need help..i think i am lost somewhere..basically i followed the example http://www.iphonesdkarticles.com/2008/10/sqlite-tutorial-loading-data-as.html, but i was stuck with error on reading description..something must had gone wrong some well but i am not very sure how should i solve it. this is my code, actually i dun really have an idea on wat's really going in this code..help please..2days!! no solution!! - (void) hydrateDetailViewData { //if detail view is hydrated then do not get it from database if(isDetailViewHydrated) return; if(detailStmt == nil) { const char *sql = "select snapTitle, snapDesc from Snap where snapID =?"; if(sqlite3_prepare_v2(database, sql, -1, &detailStmt, NULL) != SQLITE_OK) NSAssert1(0, @"Error while creating detail view statement. '%s'", sqlite3_errmsg(database)); NSLog(@"SQLite= %d", sqlite3_step(detailStmt)); } if(SQLITE_DONE != sqlite3_step(detailStmt)) { // NSString *descStr = [[NSString alloc] //initWithString:sqlite3_column_text(detailStmt, 2)]; NSString *descStr = [NSString stringWithUTF8String:(char *)sqlite3_column_text(detailStmt,2)]; self.snapDescription = descStr; [descStr release]; } else NSAssert1(0, @"Error getting description of snap2play. '%s'", sqlite3_errmsg(database)); sqlite3_reset(detailStmt); isDetailViewHydrated = YES; //if hydrated, make sure do not get from database again. } }

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  • how to slove error when using thread?

    - by ChandreshKanetiya
    I have following error msg in console when using NSThread "Tried to obtain the web lock from a thread other than the main thread or the web thread. This may be a result of calling to UIKit from a secondary thread. Crashing now..." I have submit my sample code here - (void)viewDidLoad { appDeleg = (NewAshley_MedisonAppDelegate *)[[UIApplication sharedApplication] delegate]; [[self tblView1] setRowHeight:80.0]; [super viewDidLoad]; self.title = @"Under Ground"; [UIApplication sharedApplication].networkActivityIndicatorVisible = YES; [NSThread detachNewThreadSelector:@selector(CallParser) toTarget:self withObject:nil]; } -(void)CallParser { Parsing *parsing = [[Parsing alloc] init]; [parsing DownloadAndParseUnderground]; [parsing release]; [self Update_View]; //[myIndicator stopAnimating]; [UIApplication sharedApplication].networkActivityIndicatorVisible = NO; } here "DownloadAndParseUnderground" is the method of downloding data from the rss feed and -(void) Update_View{ [self.tblView1 reloadData]; } when Update_View method is called the tableView reload Data and in the cellForRowAtIndexPath create error and not display custom cell - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; CustomTableviewCell *cell = (CustomTableviewCell *) [tblView1 dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { [[NSBundle mainBundle] loadNibNamed:@"customCell" owner:self options:nil]; cell = objCustCell; objCustCell = nil; }

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  • UINavigationController's back button disappears?

    - by QAD
    I notice something strange happens to one of my view controller: the back button disappears, yet it's possible to go back to previous view controller by tapping the top left corner (i.e where the button should reside). In my entire file there's no line that set self.navigationItem.hidesBackButton to YES; also NSLog prints 0 as self.navigationItem.hidesBackButton's value in viewDidLoad. This occurs in both the simulator and real device. Any ideas?

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  • Customized annotation problem

    - by user128647
    I want my custom UIView (.Xib View) to appear when user tabs on pins (not apple's callOutBubble) and in that UIView there should be a button which fires an IBAction on touched down event. Therefore I have added an AddObserver method to MKAnnotationView. which responds to touch events over pin in MKMapView. I have also added 3 buttons over that XIB view, which have also assigned IBActions. But when I run my application, buttons in the customized annotation view are not responding to IBAction (Touch Down). Why does this happen, and how can I fix it? I need to call a method when those 3 buttons are tabbed.

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