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  • iPhone keyboard, Done button and resignFirstResponder

    - by nevan
    This is probably a dumb question, but I can't find the answer in the docs. Did the "Done" button on the pop-up keyboard always cause the keyboard to disappear? I see a lot of code around the web like this: - (BOOL)textFieldShouldReturn:(UITextField *)theTextField { [theTextField resignFirstResponder]; return YES; } When I press the "Done" button, the keyboard pops down and the UITextField resigns first responder. I'm presuming that pressing the "Done" button didn't used to cause a UITextField to resignFirstResponder, but that behavior changed at some time. I'm debugging on OS 3.0 - 3.1.3

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  • Problem with parsing XML with iPhone app

    - by zp26
    Hi, I have a problem with a xml parsing. I have create a class for parsing. The xmlURL is correct (testing it from debug) but when i call the method parse the variable success become FALSE and a errorParsing is "NSXMLParserErrorDomain". Can you help me? My code is below. #import "xmlParser.h" #import"Posizione.h" @implementation xmlParser @synthesize arrayPosizioniXML; NSString *tempString; Posizione *posizioneRilevata; - (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string { if([tempString isEqualToString:@"name"]) posizioneRilevata.nome = string; else if([tempString isEqualToString:@"x"]) posizioneRilevata.valueX = [string floatValue]; else if([tempString isEqualToString:@"y"]) posizioneRilevata.valueY = [string floatValue]; else if([tempString isEqualToString:@"z"]) posizioneRilevata.valueZ = [string floatValue]; else if([tempString isEqualToString:@"/posizione"]) [arrayPosizioniXML addObject:posizioneRilevata]; } - (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName { //[textArea setText:[[NSString alloc] initWithFormat:@"%@\nFine elemento: %@",textArea.text,elementName]]; } - (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName attributes:(NSDictionary *)attributeDict { if ([elementName isEqualToString:@"name"]){ tempString = @"name"; NSLog(@"ok"); } else if([elementName isEqualToString:@"x"]){ tempString = @"x"; } else if([elementName isEqualToString:@"y"]) { tempString = @"y"; } else if([elementName isEqualToString:@"z"]) { tempString = @"z"; } else if([elementName isEqualToString:@"/posizione"]) { tempString = @"/posizione"; } } -(BOOL)avviaParsing{ //Bisogna convertire il file in una NSURL altrimenti non funziona NSLog(@"zp26 %@",path); NSURL *xmlURL = [NSURL fileURLWithPath:path]; // Creiamo il parser NSXMLParser *parser = [[ NSXMLParser alloc] initWithContentsOfURL:xmlURL]; // Il delegato del parser e' la classe stessa (self) [parser setDelegate:self]; //Effettuiamo il parser BOOL success = [parser parse]; //controlliamo come è andata l'operazione if(success == YES){ //parsing corretto return TRUE; } else { NSError *errorParsing = [[NSError alloc]init]; errorParsing = [parser parserError]; //c'è stato qualche errore... return FALSE; } // Rilasciamo l'oggetto NSXMLParser [parser release]; } -(id)init { self = [super init]; if (self != nil) { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectoryPath = [paths objectAtIndex:0]; path = [documentsDirectoryPath stringByAppendingPathComponent:@"filePosizioni.xml"]; posizioneRilevata = [[Posizione alloc]init]; tempString = [[NSString alloc]init]; } return self; } @end @implementation AccelerometroViewController -(BOOL)caricamentoXML{ xmlParser *parser; parser = [[xmlParser alloc]init]; if([parser avviaParsing]){ [arrayPosizioni addObjectsFromArray:parser.arrayPosizioniXML]; return TRUE; } else return FALSE; } - (void)viewDidLoad { [super viewDidLoad]; if([self caricamentoXML]){ UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Caricamento Posizioni da Xml" message:@"Posizione caricata con successo" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:nil]; [alert show]; [alert release]; } else{ UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Caricamento Posizioni da Xml" message:@"Posizione non caricate" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:nil]; [alert show]; [alert release]; } } @end

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  • SQLite/iPhone read copyright symbol

    - by Marco A
    Hi All, I am having problems reading the copyright symbol from a sqlite db that I have for my App that I am developing. I import the information manually, ie, from an excel sheet. I have tried two ways of doing it and failed with both: 1) Tried replacing the copyright symbol with "\u00ae" (unicode combination) within excel and then importing the modified file. - Result: I get the combination of \u00ae as a part of the string, it doesnt detect the unicode combination. 2) Tried leaving as it is. Importing the excel with the copyright symbol. - Result: I get a symbol that is different from the copyright, its something like an AE put together.looks like this: Æ Heres my code how I read from DB: -(void) readCategoriesFromDatabase:(NSString *) rest_input { // Init the products Array categories = [[NSMutableArray alloc] init]; // Open the database from the users filessytem rest_input = [rest_input stringByAppendingString:@"'"]; NSString *newString; newString = [@"select distinct category from food where restaurant='" stringByAppendingString:rest_input]; const char *cat_sqlStatement = [newString UTF8String]; sqlite3_stmt *cat_compiledStatement; if(sqlite3_prepare_v2(database, cat_sqlStatement, -1, &cat_compiledStatement, NULL) == SQLITE_OK) { // Loop through the results and add them to the feeds array while(sqlite3_step(cat_compiledStatement) == SQLITE_ROW) { NSString *catName = [NSString stringWithUTF8String:(char *)sqlite3_column_text(cat_compiledStatement,0)]; // Create a new product object with the data from the database Product *category = [[Product alloc] initWithName:catName]; // Add the product object to the respective Array [categories addObject:category]; [category release]; } sqlite3_finalize(cat_compiledStatement); } NSLog(@"Finished Accessing Database to gather Categories...."); } I open the DB with this function: -(void) checkAndCreateDatabase{ NSLog(@"Checking/Creating Database...."); NSFileManager *fileManager = [NSFileManager defaultManager]; success = [fileManager fileExistsAtPath:databasePath]; [fileManager removeFileAtPath:databasePath handler:nil]; NSString *databasePathFromApp = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:databaseName]; [fileManager copyItemAtPath:databasePathFromApp toPath:databasePath error:nil]; [fileManager release]; if (sqlite3_open([databasePath UTF8String], &database) != SQLITE_OK) { sqlite3_close(database); database = nil; } NSLog(@"Finished Checking/Creating Database...."); } Thanks to anything that can help me out.

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  • iPhone Core Data - Access deep attributes with to many relationships

    - by ncohen
    Hi everyone, Let say I have an entity user which has a one to many relationship with the entity menu which has a one to many relationship with the entity meal which has a many to one relationship with the entity recipe which has a one to many relationship with the entity element. What I would like to do is to select the elements which belong to a particular user (username = myUsername) and particular menu*s* (minDate < menu.date < maxDate). Does anyone have an idea how to get them? Thanks

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  • IPhone: different system timers??

    - by matt
    I have been using mach_absolute_time() for all my timing functions so far. calculating how long between frames ect. I now want to get the exact time touch input events happen using event.timestamp in the touch callbacks. the problem is these two seem to use completely different timers. sure, you can get them both in seconds, but their origins are different and seemingly random... is there any way to sync the two different timers? or is there anyway to get access to the same timer that the touch input uses to generate that timestamp property? otherwise its next to useless.

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  • keep keyboard open when deleting/inserting UITableView's cell (iphone)

    - by Jonathan
    I have a login form using a UITableView. One of the cells has a UISwitch which when on will delete the row above it and when off reinsert it. But the first cell automatically has the keyboard up when the cell is created (basically when the view loads) (by using [cell becomeFirstResponder];) Inserting/deleting any of the cells means that the keyboard animates out and then animates back in. I'd like to remove this so the keyboard stays up while rows are deleted/inserted.

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  • iPhone SDK 4.0 Phone locked tool

    - by gmcalab
    Is there going to be a way with the 4.0 SDK to create a tool similar to Pandora(which was demoed today), so when the phone is locked, I can manipulate my app? So basically if my app was running, and my phone locks I don't have to unlock the phone to toggle something for the app?

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  • Adding buttons dynamically to a uitableviewcell - iPhone app

    - by alan
    I have a verb conjugation app that displays verb translations in the first cell of a table. At present the translation list is just a string (comma-separated list) but I'd like to change it to have clickable buttons. I had a play around adding buttons to the cell view without too much success but my only experience with custom cells has been using specific positioning so I'm unsure as to how to achieve a dynamic list of buttons (varying widths) within a cell. Any help greatly appreciated. Cheers.

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  • Building drag and drop interface on iphone

    - by John Stewart
    I am trying to build an app which will have a bunch of cards that the user needs to drag and drop them onto specific drop zones. How would one go about detecting this and if the card is not on the drop zone then it should slide back. Any suggestions on how to structure this app?

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  • iPhone - Change entity class (NSManagedObject) to make them initializable

    - by ncohen
    Hi everyone, I would like to use my custom NSManagedObject like a normal object (as well as its regular functions). Is it possible to modify the class in order to be able to initialize it like a normal object? [[myManagedObject alloc] init]; Thanks edit: to clarify the question, will it screw everything up if I change the @dynamic with @synthesize in the implementation?

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  • Table View in iPhone

    - by user265260
    I have this code [tableView deselectRowAtIndexPath:indexPath animated:YES]; Why doesn't the table view deselect the row, What am i doing wrong. EDIT: -(void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath{ [tableView deselectRowAtIndexPath:indexPath animated:YES]; }

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  • Iphone SDK on Windows (alternative solutions)

    - by Cyclone
    I know there is no official SDK for windows, which is very annoying. Is there any way to develop applications on a windows computer, other than somehow running a mac os in vmware? I know you can do it with Xcode, but that is also only for macs. Google searches have revealed absolutely nothing...... If I cannot use the SDK or Xcode, any way I can just check syntax or something and just make my code in Notepad and save it with the proper extension? I have no idea whether or not I would be able to do that, probably because I have never even tried the SDK and probably never will without buying a mac.

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  • iPhone SDK - Number of days between day and today

    - by Hankweb
    I need help on how to find out how many days it has been (seven day weeks, MSTimezone) since May 6th, 2009 [NSDate *m62009 = [NSDate dateWithTimeIntervalSinceReferenceDate:231638400]; [m62009 setTimeZone:[NSTimeZone timeZoneWithAbbreviation:@"MST"]; (to help you - 231638400 seconds from 1/1/2001)

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  • how to close layer that showed in other layer in cocos2d-iphone

    - by yegomo
    I have one layer called alayer, and there is a button called abutton, when click the button, another layer called blayer will show in alayer, not replaceScene, please look at the following code, alayer.m -(void)abuttonclicked:(id)sender { blayer *blayer = [blayer node]; blayer.position = ccp(1,1); [self addChild:blayer]; } blayer.m has a button called bbutton and string value called bstring, I want to click the b button, it will close blayer (remove blayer from alayer), and pass the string value bstring to alayer, please look at following code, -(void)bbuttonclicked:(id)sender { // how can do here to close its self(remove its self from alayer), and pass the bstring to alayer? } thanks. ps. I can use NSUserDefault to pass the string value, but I think it's a bad way to do this, is there another way to pass value?

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  • iphone dev - how to catch exception 'NSRangeException'

    - by Brian
    In my app I try to scroll a UITableView to the top once after I updated the content of the table. However, under some circumstance, my table is EMPTY. So I got the following exception: Terminating app due to uncaught exception 'NSRangeException', reason: '-[UITableView scrollToRowAtIndexPath:atScrollPosition:animated:]: row (0) beyond bounds (0) for section (0).' how can I catch this exception? I tried NSIndexPath *indexPath = [NSIndexPath indexPathForRow:0 inSection:0]; if (indexPath != nil) { [EventTable scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionTop animated:YES]; } but it doesn't catch the exception because indexPath is not nil.

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  • Error when deploying app to the device in iphone

    - by Rafael
    Hi, I'm developing an app with SDK 3.1.2 and it runs in the simulator, but when I try to deploy it in the device it arise de following error: 2010-06-17 17:40:39.592 MyApp[2143:207] *** -[__NSCFDate dateInformation]: unrecognized selector sent to instance 0x21e6a0 2010-06-17 17:40:39.608 MyApp[2143:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[__NSCFDate dateInformation]: Why this doesn't happen for the simulator? Thanks in advanced for your help.

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  • iPhone - extending a class delegate

    - by Digital Robot
    OK, I know how to create a class extension, using something like that: on .h @interface UIButton (myExtensionName) // my extended methods @end and then on .m @implementation UIButton (myExtensionName) // my implementations @end But how do I declare the extended delegates I may create? If this was a normal class I would do @protocol myExtensionName <NSObject> // my delegate declarations @end but how do I do that on a class extension? thanks

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  • AdWhirl implementation in iPhone Cocoa touch

    - by user571283
    Hi dudes, i'm starting to implement AdWhirl in my application. i follow the instructions which is belong to adwhirl but i cant see any ad in my application.i add the following methods in my viewcontroller class - (void)viewDidLoad { [super viewDidLoad]; AdWhirlView *adView=[AdWhirlView requestAdWhirlViewWithDelegate:self]; [self.view addSubview:adView]; } -(NSString *) adWhirlApplicationKey{ return @"myAdWhirlKey"; } -(UIViewController *) viewControllerForPresentingModalView{ return self; } i doesn't display anything. please help how to implement AdWhirl

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