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  • iPhone - Launching selectors from a different class

    - by David Schiefer
    Hi, I'd like to reload a table view which is in another class called "WriteIt_MobileAppDelegate" from one of my other classes which is called "Properties". I've tried to do this via the NSNotificationCenter class - the log gets called but the table is never updated. Properties.h: [[NSNotificationCenter defaultCenter] postNotificationName:@"NameChanged" object:[WriteIt_MobileAppDelegate class] userInfo:nil]; WriteIt_MobileAppDelegate.m -(void)awakeFromNib { [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(reloadItProperties:) name:@"NameChanged" object:self]; } - (void) reloadItProperties: (NSNotification *)notification { NSLog(@"Reloading Data"); //this gets called [self.navigationController popToRootViewControllerAnimated:YES]; [self.tblSimpleTable reloadData]; [self.tblSimpleTable reloadSectionIndexTitles]; // but the rest doesn't } What am I doing wrong here?

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  • iPhone dev - showing two locations on the map

    - by Brian
    Now I have the coordinate of two locations, let say locationA with latitude 40 and longitude -80, locationB with latitude 30 and longitude -70, I want to create a mapView that I can see both locations with appropriate viewing distance. I got the new coordinate by finding the midpoint (in this example, {35, -75}), but the question is, How can I get an appropriate viewing distance? In particular, how can I calculate CLLocationDistance (if I'm using MKCoordinateRegionMakeWithDistance) or MKCoordinateSpan (if I'm using MKCoordinateSpanMake). Thanks in advance.

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  • Drill down rss reader iphone

    - by bing
    Hi everyone, I have made a simple rss reader. The app loads an xml atom file in an array. Now I have added categories to my atom feed, which are first loaded in the array What is the best way to add drill down functionality programmatically. Now only the categories are loaded into the array and displayed. This is the implementation code ..... loading xml file <snip> ..... - (void)parserDidStartDocument:(NSXMLParser *)parser { NSLog(@"found file and started parsing"); } - (void)parser:(NSXMLParser *)parser parseErrorOccurred:(NSError *)parseError { NSString * errorString = [NSString stringWithFormat:@"Unable to download story feed from web site (Error code %i )", [parseError code]]; NSLog(@"error parsing XML: %@", errorString); UIAlertView * errorAlert = [[UIAlertView alloc] initWithTitle:@"Error loading content" message:errorString delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil]; [errorAlert show]; } - (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict{ //NSLog(@"found this element: %@", elementName); currentElement = [elementName copy]; if ([elementName isEqualToString:@"entry"]) { // clear out our story item caches... Categoryentry = [[NSMutableDictionary alloc] init]; currentID = [[NSMutableString alloc] init]; currentTitle = [[NSMutableString alloc] init]; currentSummary = [[NSMutableString alloc] init]; currentContent = [[NSMutableString alloc] init]; } } - (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName{ //NSLog(@"ended element: %@", elementName); if ([elementName isEqualToString:@"entry"]) { // save values to an entry, then store that item into the array... [Categoryentry setObject:currentTitle forKey:@"title"]; [Categoryentry setObject:currentID forKey:@"id"]; [Categoryentry setObject:currentSummary forKey:@"summary"]; [Categoryentry setObject:currentContent forKey:@"content"]; [categories addObject:[Categoryentry copy]]; NSLog(@"adding category: %@", currentTitle); } } - (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string{ //NSLog(@"found characters: %@", string); // save the characters for the current item... if ([currentElement isEqualToString:@"title"]) { [currentTitle appendString:string]; } else if ([currentElement isEqualToString:@"id"]) { [currentID appendString:string]; } else if ([currentElement isEqualToString:@"summary"]) { [currentSummary appendString:string]; } else if ([currentElement isEqualToString:@"content"]) { [currentContent appendString:string]; } } - (void)parserDidEndDocument:(NSXMLParser *)parser { [activityIndicator stopAnimating]; [activityIndicator removeFromSuperview]; NSLog(@"all done!"); NSLog(@"categories array has %d entries", [categories count]); [newsTable reloadData]; }

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  • Wait during iPhone UI modification

    - by paul simmons
    Hi, I am making modifications to elements on UI. There is no (extra) thread or any async. calls. However I want to give a slow motion effect, so wait specific time at each step in a for loop. How can I achieve this without blocking the UI?

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  • How to eval javascript code with iPhone SDK?

    - by overboming
    I need to fetch some result on a webpage, which use some javascript code to generate the part I am interesting in like following eval(function(p,a,c,k,e,d){e=function(c){return c};if(!''.replace(/^/,String)){while(c--)d[c]=k[c]||c;k=[function(e){return d[e]}];e=function(){return'\\w+'};c=1;};while(c--)if(k[c])p=p.replace(new RegExp('\\b'+e(c)+'\\b','g'),k[c]);return p;}('5 11=17;5 12=["/3/2/1/0/13.4","/3/2/1/0/15.4","/3/2/1/0/14.4","/3/2/1/0/7.4","/3/2/1/0/6.4","/3/2/1/0/8.4","/3/2/1/0/10.4","/3/2/1/0/9.4","/3/2/1/0/23.4","/3/2/1/0/22.4","/3/2/1/0/24.4","/3/2/1/0/26.4","/3/2/1/0/25.4","/3/2/1/0/18.4","/3/2/1/0/16.4","/3/2/1/0/19.4","/3/2/1/0/21.4"];5 20=0;',10,27,'40769|54|Images|Files|png|var|imanhua_005_140430179|imanhua_004_140430179|imanhua_006_140430226|imanhua_008_140430242|imanhua_007_140430226|len|pic|imanhua_001_140429664|imanhua_003_140430117|imanhua_002_140430070|imanhua_015_140430414||imanhua_014_140430382|imanhua_016_140430414|sid|imanhua_017_140430429|imanhua_010_140430289|imanhua_009_140430242|imanhua_011_140430367|imanhua_013_140430382|imanhua_012_140430367'.split('|'),0,{})) How do I get the evaluation output?

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  • Three20 Library Cannot find its own headers Xcode iPhone

    - by DieLaughing
    import "Three20/Three20.h" Fails. Go download it and build a sample app. If that works, then make a new app from the templates provided, then watch as it fails spectacularly to find the right HEADER_SEARCH_PATH. 1) I've gone to the info page for the TARGET and not the PROJECT (Well, I tried both) and tried a bunch of different paths for the HEADER_SEARCH_PATH field. 2) I've tried dragging and dropping the dependent files from the finder and COPYING or just referencing both fails. (RANT: WTF?! Really? I wish public code libraries saved me time ONCE in my life.)

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  • iPhone/Objective-C struct question my own CGRectZero

    - by Mark
    I am designing a Padding struct as follows: /* Padding. */ struct CGPadding { CGFloat left; CGFloat top; CGFloat right; CGFloat bottom; }; typedef struct CGPadding CGPadding; CG_INLINE CGPadding CGPaddingMake(CGFloat left, CGFloat top, CGFloat right, CGFloat bottom) { CGPadding p; p.left = left; p.top = top; p.right = right; p.bottom = bottom; return p; } This all works perfectly well, the problem is how can I create a const CGPadding CGPaddingZero? If I do like this: const CGPadding CGPaddingZero = (CGPadding){0.0, 0.0, 0.0, 0.0}; It doesnt work. So what am I doing wrong?

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  • How to put Google adsense in iPhone application?

    - by oksk
    Hi all. I have a question about adsense. I want to put Google adsense in my application to be developed. But after testing my code, It wasn't shown. this is my code self.webView.userInteractionEnabled = NO; NSMutableString *manageableHTML = [[[NSMutableString alloc] init] autorelease]; [manageableHTML appendFormat:@"<html><head></head>"]; [manageableHTML appendFormat:@"<body>"]; [manageableHTML appendFormat:@"<script type=\"text/javascript\"><!--"]; [manageableHTML appendFormat:@"window.googleAfmcRequest = {"]; [manageableHTML appendFormat:@"client: 'ca-mb-pub-7564235160823935',"]; [manageableHTML appendFormat:@"ad_type: 'text_image',"]; [manageableHTML appendFormat:@"output: 'html',"]; [manageableHTML appendFormat:@"channel: '2052458338',"]; [manageableHTML appendFormat:@"format: '320x50_mb',"]; [manageableHTML appendFormat:@"oe: 'utf8',"]; [manageableHTML appendFormat:@"color_border: '336699',"]; [manageableHTML appendFormat:@"color_bg: 'FFFFFF',"]; [manageableHTML appendFormat:@"color_link: '0000FF',"]; [manageableHTML appendFormat:@"color_text: '000000',"]; [manageableHTML appendFormat:@"color_url: '008000',"]; [manageableHTML appendFormat:@"};"]; [manageableHTML appendFormat:@"//--></script>"]; [manageableHTML appendFormat:@"<script type=\"text/javascript\" "]; [manageableHTML appendFormat:@"src=\"http://pagead2.googlesyndication.com/pagead/show_afmc_ads.js\"></script>"]; [manageableHTML appendFormat:@"</body></html>"]; [self.webView loadHTMLString:manageableHTML baseURL:nil]; [self.view addSubview:self.webView]; Bofore testing, this javascript code are well operated in my google blog. I found that this code work at only mobile device. and I checked it through safari of my ipod touch. (It works well.) But Checking in the application, I don't see adsense. what is something wrong?

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  • How to display recently view items in iphone

    - by Pugal Devan
    Hi friends, I have created tab bar and have three views. Tab-1 --> table view and it navigates to detail table view. Tab-2 --> map view. Tab-3 --> table view.(Recent view for Tab-1 items). Now i have displayed the names in the table view in tab-1. The names are changed dynamically and displayed using XML parsing. In tab-3 is the recent view. Now i want to display the details in recent view those who visit recently in tab-1 view. I want to display only 10 items in the recent view. So i have used NSMutableArray and i have set deleagtes due to get the items in recent view from tab-1 view. How to avoid the duplicate recent items and how to remove the older items and inserts the new recent items in recent view. Here my sample code, In Recent view class, stories = [[NSMutableArray alloc] initWithCapacity:10]; items = [[NSMutableDictionary alloc] init]; NSString *preferName = [devDelegate getCurrentAuthor]; //(get name dynamically) [items setObject:preferName forKey:@"preferName"]; [stories addObject:[items copy]]; cell.textLabel.text = [[stories objectAtIndex:storyIndex] objectForKey:@"preferName"]; So please guide me to how to achieve this. Thanks.

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  • iPhone app, navigationcontroller not functioning?

    - by dramaticlook
    I have 4 tabs in a tab bar. In one of the tabs i want to use a navigation, i.e. when i click an item from the list it should go to some details page about it. I have the list page where i have the navigation bar and the list of items. I can scroll them, but when I click any of them the selection animation happens, console logs the true row value, it even prints log instructions from constructor of the Details page but I can not see the Details page showing up. (btw Xcode 3.2.6 with iOS 4.3) - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { NSString *rowValue = [myStrings objectAtIndex:indexPath.row]; NSLog(rowValue); //[Utility setStr:rowValue]; [self.myTable deselectRowAtIndexPath:indexPath animated:TRUE]; //DETAILS PAGE HERE!!!! RestViewController * rest= [[RestViewController alloc] init]; rest.scoreLabel.text = rowValue; [self.navigationController pushViewController:rest animated:TRUE]; [rest release]; } Anybody having any idea? Thanks in advance!!!

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  • Using NSThread to solve waiting for image from URL on the iPhone

    - by james.ingham
    So I have the following code in a method which I want to set a UIImageView image to that of one from an online source: [NSThread detachNewThreadSelector:@selector(loadImage) toTarget:self withObject:nil]; Then in the method called by the thread I have this: - (void) loadImage { NSURL *url = [NSURL URLWithString:logoPath]; // logoPath is an NSString with path details NSData *data = [NSData dataWithContentsOfURL:url]; logoImage.image = [UIImage imageWithData:data]; } This works great however I get many warnings within the Debugger Console along the lines of: 2010-05-10 14:30:14.052 ProjectTitle[2930:633f] * _NSAutoreleaseNoPool(): Object 0x169d30 of class NSHTTPURLResponse autoreleased with no pool in place - just leaking This occurs many times each time I call the new thread and then eventually, under no pattern, after calling a few of these threads I get the classic 'EXC_BAD_ACCESS' run-time error. I understand that this is happening because I'm not retaining the object but how can I solve this with the code in 'loadImage' shown above? Thanks

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  • How to use Sleep in the application in iphone

    - by Pugal Devan
    Hi, I have used to loading a default image in my appication. So i have set to, Sleep(3); in my delegate.m method. But sometimes it will take more than 6 to 7 minutes. So i want to display the image 3 seconds only and then it goes to my appilcation based on my requirements. Which one is best way to do that? Sleep(3) or [NSThread sleepForTimeInterval:3.0] or something else; And i must display the image 3 seconds only. Please explain me. (Note: And I declared setter and getter methods only in my deleagte class.) Please explain me.

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  • iPhone ShouldStartLoad fires once per click?

    - by BahaiResearch.com
    In my UIWebView when an anchor is clicked I catch it in ShouldStartLoad and always return false to cancel it. (I treat the clicks as command to do things) Strangely the ShouldStartLoad only fires once if the same anchor is clicked more than once in a row. Eg: Click "A", Click "A" - ShouldStartLoad receives "A" once Click "A", Click "B", Click "A" - ShouldStartLoad receives "A", then "B" then "A" Is there a way to make ShouldStartLoad receive "A" twice when clicked twice in a row?

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  • iPhone and iPad : Doing a "select * from something" query in a SQLite database

    - by Abramodj
    Hi folks, i'm trying to use the SQLite data base in my iPad app, and here's my function to make a query: - (void)executeQuery:(char*)query { NSString *file = [self getWritableDBPath]; NSFileManager *fileManager = [NSFileManager defaultManager]; BOOL success = [fileManager fileExistsAtPath:file]; // If its not a local copy set it to the bundle copy if(!success) { //file = [[NSBundle mainBundle] pathForResource:DATABASE_TITLE ofType:@"db"]; [self createEditableCopyOfDatabaseIfNeeded]; } dataArray = NULL; dataArray = [NSMutableArray array]; sqlite3 *database = NULL; if (sqlite3_open([file UTF8String], &database) == SQLITE_OK) { sqlite3_exec(database, query, loadTimesCallback, dataArray, NULL); } sqlite3_close(database); [self logResults]; } if I call [self executeQuery:"select name from table1"]; everything is working fine. But if i call [self executeQuery:"select * from cars"]; the app crashes telling me that the NSMutableArray dataArray is not the right kind of variable where to set the query results. So, how can i do a "select * form table1" query, and store the results? Thanks! EDIT: Here's my loadTimesCallback method: static int loadTimesCallback(void *context, int count, char **values, char **columns) { NSMutableArray *times = (NSMutableArray *)context; for (int i=0; i < count; i++) { const char *nameCString = values[i]; [times addObject:[NSString stringWithUTF8String:nameCString]]; } return SQLITE_OK; }

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  • iPhone NSDateFormatter Timezone Conversion

    - by MobileDeveloperTips
    I am trying to create a formatter that will convert the date format shown to an NSDate object: NSString *dateStr = @"2010-06-21T19:00:00-05:00"; NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init]; [dateFormat setDateFormat:@"yyyy-MM-dd'T'HH:mm:ssZZZ"]; NSDate *date = [dateFormat dateFromString:dateStr]; The issue is the timezone -05:00, which is not parsed properly with the format above. Any suggestions?

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  • UINavigationController not working under ARC in iPhone

    - by user1811427
    I have creared a new project "Empty Application" template in Xcode 4.3, it is having only two classes AppDelegate.h & .m I cheaked with ARC to use automatic reference count while creating the app. I added two new files "RootViewController" & "NewProjectViewControllers". I implemented code to set navigation controller as follows in AppDelegate - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; // Override point for customization after application launch. rootViewController = [[MainViewController alloc] init]; UINavigationController *navigation = [[UINavigationController alloc] initWithRootViewController:rootViewController]; [self.window addSubview:navigation.view]; self.window.backgroundColor = [UIColor whiteColor]; [self.window makeKeyAndVisible]; return YES; } and in hte home view (Root view controller) implemented as follows - (void)viewDidLoad { [super viewDidLoad]; self.title = @"Projects"; UINavigationBar *navigationBar = [self.navigationController navigationBar]; [navigationBar setTintColor: [UIColor colorWithRed:10/255.0f green:21/255.0f blue:51/255.0f alpha:1.0f]]; //To set the customised bar item UIButton *rightBarBtn = [UIButton buttonWithType:UIButtonTypeCustom]; [rightBarBtn setBackgroundImage:[UIImage imageNamed:@"plus_new.png"] forState:UIControlStateNormal]; rightBarBtn.frame=CGRectMake(0.0, 100.0, 30.0, 30.0); [rightBarBtn addTarget:self action:@selector(addProject) forControlEvents:UIControlEventTouchUpInside]; UIBarButtonItem* rightBarItem = [[UIBarButtonItem alloc] initWithCustomView:rightBarBtn]; self.navigationItem.rightBarButtonItem = rightBarItem; // Do any additional setup after loading the view from its nib. } - (void) addProject { NewProjViewController *editProject = [[NewProjViewController alloc] init]; [self.navigationController pushViewController:editProject animated:YES]; NSLog(@"xxxxxxxxxxxxxxx"); } But since i used ARC the navigation may dealoc immediately and it doesn't work, All the actions in method works except push to the next view if i do same thing with out ARC it works fine How to resolve this issue..? Thanks in advance

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  • iPhone - Make loadView entries fill up parent view?

    - by Eli
    I have a loadView call that basically places one view at the top (like a header) and one at the bottom (like a footer). It's possible via a passed in parameter to not have a header or a footer, to hide them later, or to resize the view. I have all this working, but it's very susceptible to breaking because the views can go in various places of various sizes and all must be manually set to the correct size or they will not use up all the space. I want one in between the two of them that automatically resizes to fill whatever space is not taken by the others. loadView doesn't seem to be able to obtain the size of its parent's frame (or where it's being fit in, exactly), nor do I see an obvious way to just put the center view at a certain position and have its width and height automatically adapted. Any ideas? If I'm not explaining myself well enough and you know Java Swing, think BorderLayout with a BorderLayout.NORTH, BorderLayout.SOUTH, and BorderLayout.CENTER component.

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  • Adding single row one by one in tableview from core data of iPhone

    - by user336685
    I am working on RSS reader code where articles get downloaded and are viewable offline. The problem is only after all articles are downlaoded the tableview containing headlines gets updated. Core data is used. So everytime NSobjectcontext is saved , [self tableview updatebegins ] is called.The table is getting updated via fetchcontroller core data. I tried saving NSobjectcontext everytime an article is saved but that is not updating the tableview. I want a mechanism similar to instapaper tableview where articles get saved and tableview gets updated immediately. Please help if you know the solution. Thanks in advance.

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