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  • how do we access values stored in NSMutableArray of NSMutableDictionary ?

    - by srikanth rongali
    I have stored values in NsMutableDictionaries . ThenI stored all the dictionaries in NSMutable Array. I need to access the values ? How can I do that ? -(void)viewDidLoad { [super viewDidLoad]; self.title = @"Library"; self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Close" style:UIBarButtonItemStyleBordered target:self action:@selector(close:)]; cells = [[NSMutableArray alloc] initWithObjects:@"dict1", @"dict2", @"dict3", @"dict4", @"dict5", @"dict6", nil]; dict1 = [[NSMutableDictionary alloc] initWithObjectsAndKeys:@"Mon, 01 Feb #2", @"date", @"0.7", @"time", @"1.2MB", @"size", @"200*200", @"pix", nil]; dict2 = [[NSMutableDictionary alloc] initWithObjectsAndKeys:@"Wed, 02 Mar #3", @"date", @"1.2", @"time", @"2.2MB", @"size", @"300*300", @"pix", nil]; dict3 = [[NSMutableDictionary alloc] initWithObjectsAndKeys:@"Tue, 03 Apr #5", @"date", @"1.7", @"time", @"2.5MB", @"size", @"240*240", @"pix", nil]; dict4 = [[NSMutableDictionary alloc] initWithObjectsAndKeys:@"Mon, 01 Feb #2", @"date", @"0.7", @"time", @"1.2MB", @"size", @"200*200", @"pix", nil]; dict5 = [[NSMutableDictionary alloc] initWithObjectsAndKeys:@"Mon, 10 Nov #5", @"date", @"2.7", @"time", @"4.2MB", @"size", @"200*400", @"pix", nil]; dict6 = [[NSMutableDictionary alloc] initWithObjectsAndKeys:@"Mon, 11 Dec #6", @"date", @"4.7", @"time", @"2.2MB", @"size", @"500*200", @"pix", nil]; //[cells addObject:dict1]; //[cells addObject:dict2]; //[cells addObject:dict3]; //[cells addObject:dict4]; //[cells addObject:dict5]; //[cells addObject:dict6]; } // Customize the number of rows in the table view. - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return [cells count]; } // Customize the appearance of table view cells. - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease]; //cell.contentView.frame = CGRectMake(0.0f, 0.0f, 320.0f, 80.0f); [cell setAccessoryType:UITableViewCellAccessoryDisclosureIndicator]; UIImageView *image1 = [[UIImageView alloc]init]; image1.frame = CGRectMake(0.0f, 0.0f, 80.0f, 80.0f); image1.tag = tag7; UILabel *dateLabel = [[UILabel alloc]init]; dateLabel.frame = CGRectMake(100.0f, 5.0f, 120.0f, 25.0f); dateLabel.font = [UIFont fontWithName:@"Georgia" size:10]; dateLabel.tag = tag1; UILabel *timeLabel = [[UILabel alloc] init]; timeLabel.frame = CGRectMake(100.0f, 30.0f, 40.0f, 25.0f); timeLabel.font = [UIFont fontWithName:@"Georgia" size:10]; timeLabel.tag = tag2; UILabel *sizeLabel = [[UILabel alloc] init]; sizeLabel.frame = CGRectMake(160.0f, 30.0f, 40.0f, 25.0f); sizeLabel.font = [UIFont fontWithName:@"Georgia" size:10]; sizeLabel.tag = tag3; UILabel *pixLabel = [[UILabel alloc] init]; pixLabel.frame = CGRectMake(220.0f, 30.0f, 40.0f, 25.0f); pixLabel.font = [UIFont fontWithName:@"Georgia" size:10]; pixLabel.tag = tag4; UILabel *shareLabel = [[UILabel alloc] init]; shareLabel.frame = CGRectMake(100.0f, 55.0f, 100.0f, 25.0f); shareLabel.font = [UIFont fontWithName:@"Georgia" size:10]; shareLabel.tag = tag5; UILabel *deleteLabel = [[UILabel alloc] init]; deleteLabel.frame = CGRectMake(220.0f, 55.0f, 100.0f, 25.0f); deleteLabel.font = [UIFont fontWithName:@"Georgia" size:10]; deleteLabel.tag = tag6; [cell.contentView addSubview:dateLabel]; [cell.contentView addSubview:timeLabel]; [cell.contentView addSubview:sizeLabel]; [cell.contentView addSubview:pixLabel]; [cell.contentView addSubview:shareLabel]; [cell.contentView addSubview:deleteLabel]; [cell.contentView addSubview:image1]; [dateLabel release]; [timeLabel release]; [sizeLabel release]; [pixLabel release]; [shareLabel release]; [deleteLabel release]; [image1 release]; } // Set up the cell... [(UILabel *)[cell viewWithTag:tag1] setText:[cells objectAtIndex:[dict1 objectForKey: @"date"]]]; [(UILabel *)[cell viewWithTag:tag2] setText:[cells objectAtIndex:[dict1 objectForKey: @"time"]]]; [(UILabel *)[cell viewWithTag:tag3] setText:[cells objectAtIndex:[dict1 objectForKey: @"size"]]]; [(UILabel *)[cell viewWithTag:tag4] setText:[cells objectAtIndex:[dict1 objectForKey: @"pix"]]]; [(UILabel *)[cell viewWithTag:tag5] setText:@"Share"]; [(UILabel *)[cell viewWithTag:tag6] setText:@"Delete"]; cell.imageView.image = [UIImage imageNamed:@"image2.png"]; return cell; } - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath { return 80.0f; } I did in above way but it is not working. I know the mistake is at the accessing values. but, I could not get how to do it ? Thank You.

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  • - (void)alertViewCancel:(UIAlertView *)alertView is not called

    - by Sean
    Hi all I've got the problem that the UIAlertViewDelegate method - (void)alertViewCancel:(UIAlertView *)alertView is not called when I cancel a AlertView with it's cancel button. Weird is that the delegate method - (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex works perfectly. Does anyone have an idea? Thanks in advance Sean

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  • iPhone MKMapView : the map can’t load completely.

    - by Tattat
    I don't know what's make wrong, my map can load, but the image on the map is not completely load. plx help. thz a lot. Here is the simulate map from the iPhone: (Added more example image.) http://img689.imageshack.us/img689/8476/screenshot20100309at841.jpg Here is the code: MKCoordinateRegion theRegion; MKCoordinateSpan theSpan; theSpan.latitudeDelta = 0.005; theSpan.longitudeDelta = 0.005; theRegion.center =  manager.location.coordinate; theRegion.span = theSpan; myMap.scrollEnabled = YES; myMap.zoomEnabled = YES; [myMap setRegion:theRegion]; [myMap regionThatFits:theRegion];

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  • Return Selected Phone Address from iPhone Address Book

    - by Ali
    Hey, I found a tutorial online that extends that Apple QuickStart Application which is the basic Address Book Application and another that returns the first phone number regardless of what phone number was clicked. I want to display only the selected phone number in the label. The label is called phoneNumber: - (BOOL)peoplePickerNavigationController: (ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person property:(ABPropertyID)property identifier:(ABMultiValueIdentifier)identifier{ ABMutableMultiValueRef phoneMulti = ABRecordCopyValue(person, kABPersonPhoneProperty); NSMutableArray *phones = [[NSMutableArray alloc] init]; int i; for (i = 0; i < ABMultiValueGetCount(phoneMulti); i++) { NSString *aPhone = [(NSString*)ABMultiValueCopyValueAtIndex(phoneMulti, i)autorelease]; [phones addObject:aPhone]; } NSString *mobileNo = [phones objectAtIndex:0]; self.phoneNumber.text = phones; [self dismissModalViewControllerAnimated:YES]; return NO; } How do I ensure that the label is the one selected by the user and not just the first array entry(or any other array entry i code in) Thanks

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  • iPhone UIWebView local resources using Javascript and handling onorientationChange

    - by Dougnukem
    I'm trying to server HTML Javascript and CSS content from an iPhone application's local resources, and I'm having trouble handling onOrientationChange events and including external Javascript. I seem to be able to link in CSS properly but not javascript. I'm trying to use the following example of handling onOrientationChange (How to build an iPhone website) but I'm serving the webpage from my app's NSBundle mainBundle. I tried attaching a javascript function to body.onorientationchange and to window.onorientationchange but neither work when served from UIWebView locally (or remotely), but it works if I'm using the iPhone Safari. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>How to build an iPhone website</title> <meta name="author" content="will" /> <meta name="copyright" content="copyright 2008 www.engageinteractive.co.uk" /> <meta name="description" content="Welcome to engege interactive on the iPhone!" /> <meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=1.0;"> <link rel="apple-touch-icon" href="images/template/engage.png"/> <style type="text/css"> @import url("iphone.css"); </style> <!-- <script type="text/javascript" src="orientation.js"></script> --> <script type="text/javascript"> function updateOrientation(){ try { var contentType = "show_normal"; switch(window.orientation){ case 0: contentType = "show_normal"; break; case -90: contentType = "show_right"; break; case 90: contentType = "show_left"; break; case 180: contentType = "show_flipped"; break; } document.getElementById("page_wrapper").setAttribute("class", contentType); //alert('ORIENTATION: ' + contentType); } catch(e) { alert('ERROR:' + e.message); } } window.onload = function initialLoad(){ try { loaded(); updateOrientation(); } catch(e) { alert('ERROR:' + e.message); } } function loaded() { document.getElementById("page_wrapper").style.visibility = "visible"; } </script> </head> <body onorientationchange="updateOrientation();"> <div id="page_wrapper"> <h1>Engage Interactive</h1> <div id="content_left"> <p>You are now holding your phone to the left</p> </div> <div id="content_right"> <p>You are now holding your phone to the right</p> </div> <div id="content_normal"> <p>You are now holding your phone upright</p> </div> <div id="content_flipped"> <p>This doesn't work yet, but there is a chance apple will enable it at some point, so I've put it in anyway. You would be holding your phone upside down if it did work.</p> </div> </div> </body> </html>

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  • Resize images in UIWebView to viewport size

    - by atz
    I'm displaying HTML with some images inside a UIWebView in my iPhone App. When the images are wider than the viewport of the iPhone I get horizontal scrollers which I don't want because its mostly about the text not the images. Is there a way to resize images displayed inside the UIWebView according to the width (best: even if the device is rotated)?

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  • ASIHTTPRequest POST splits up header + data?

    - by chris.o.
    Hi, I am using ASIHTTPRequest to POST data to a remote server on iPhone 4.2.1. When I make the following post request to our server, I get a 400 response (I removed the IP address): NSString dataString = @"data1=00&data2=00&data3=00"; ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:[NSURL URLWithString:[NSString stringWithFormat:<ipremoved>]]]; [request appendPostData:[dataString dataUsingEncoding:NSUTF8StringEncoding]]; [request setRequestMethod:@"POST"]; [request addRequestHeader:@"User-Agent" value:@"iphone app"]; [request addRequestHeader:@"Content-Type" value:@"application/octet-stream"]; request.delegate = self; [request startAsynchronous]; When I send the same data using curl, I receive a 200 response: curl -H "User-Agent: iphone app" -H "Accept:" -H "Content-Type:application/octet-stream" --data-ascii "data1=00&data2=00&data3=00" --location <ipremoved> -v My colleague is stating that, in the failure case, the ASIHTTPRequest requires two socket reads: one for the header and one for the data. Apparently the server is not presently equipped to parse this correctly, so I am trying to work around it. If I setup a proxy between iPhone and my Mac and run Paros (to see packets), the problem goes away. Paros combine the header and data so that it is all acquired by the server in a single socket read. I've tried a few things suggested in other posts including disabling persistent connections, but I am not having any luck. I've also tried doing a ASIHTTPFormRequest, but the server does not like the generated data format. Any suggestions would be appreciated. Thanks.

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  • UITableView not displaying parsed data

    - by Graeme
    I have a UITableView which is setup in Interface Builder and connected properly to its class in Xcode. I also have a "Importer" Class which downloads and parses an RSS feed and stores the information in an NSMutableArray. However I have verified the parsing is working properly (using breakpoints and NSlog) but no data is showing in the UITable View. Any ideas as to what the problem could be? I'm almost out of them. It's based on the XML performance Apple example. Here's the code for TableView.h: #import <UIKit/UIKit.h> #import "IncidentsImporter.h" @class SongDetailsController; @interface CurrentIncidentsTableViewController : UITableViewController <IncidentsImporterDelegate>{ NSMutableArray *incidents; SongDetailsController *detailController; UITableView *ctableView; IncidentsImporter *parser; } @property (nonatomic, retain) NSMutableArray *incidents; @property (nonatomic, retain, readonly) SongDetailsController *detailController; @property (nonatomic, retain) IncidentsImporter *parser; @property (nonatomic, retain) IBOutlet UITableView *ctableView; // Called by the ParserChoiceViewController based on the selected parser type. - (void)beginParsing; @end And the code for .m: #import "CurrentIncidentsTableViewController.h" #import "SongDetailsController.h" #import "Incident.h" @implementation CurrentIncidentsTableViewController @synthesize ctableView, incidents, parser, detailController; #pragma mark - #pragma mark View lifecycle - (void)viewDidLoad { [super viewDidLoad]; self.parser = [[IncidentsImporter alloc] init]; parser.delegate = self; [parser start]; UIBarButtonItem *refreshButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh target:self action:@selector(beginParsing)]; self.navigationItem.rightBarButtonItem = refreshButton; [refreshButton release]; // Uncomment the following line to preserve selection between presentations. //self.clearsSelectionOnViewWillAppear = NO; // Uncomment the following line to display an Edit button in the navigation bar for this view controller. // self.navigationItem.rightBarButtonItem = self.editButtonItem; } - (void)viewWillAppear:(BOOL)animated { NSIndexPath *selectedRowIndexPath = [ctableView indexPathForSelectedRow]; if (selectedRowIndexPath != nil) { [ctableView deselectRowAtIndexPath:selectedRowIndexPath animated:NO]; } } // This method will be called repeatedly - once each time the user choses to parse. - (void)beginParsing { NSLog(@"Parsing has begun"); //self.navigationItem.rightBarButtonItem.enabled = NO; // Allocate the array for song storage, or empty the results of previous parses if (incidents == nil) { NSLog(@"Grabbing array"); self.incidents = [NSMutableArray array]; } else { [incidents removeAllObjects]; [ctableView reloadData]; } // Create the parser, set its delegate, and start it. self.parser = [[IncidentsImporter alloc] init]; parser.delegate = self; [parser start]; } /* - (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; } */ /* - (void)viewWillDisappear:(BOOL)animated { [super viewWillDisappear:animated]; } */ /* - (void)viewDidDisappear:(BOOL)animated { [super viewDidDisappear:animated]; } */ - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { // Override to allow orientations other than the default portrait orientation. return YES; } #pragma mark - #pragma mark Table view data source - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { // Return the number of sections. return 1; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { // Return the number of rows in the section. return [incidents count]; } // Customize the appearance of table view cells. - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { NSLog(@"Table Cell Sought"); static NSString *kCellIdentifier = @"MyCell"; UITableViewCell *cell = [ctableView dequeueReusableCellWithIdentifier:kCellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:kCellIdentifier] autorelease]; cell.textLabel.font = [UIFont boldSystemFontOfSize:14.0]; cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; } cell.textLabel.text = @"Test";//[[incidents objectAtIndex:indexPath.row] title]; return cell; } /* // Override to support conditional editing of the table view. - (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath { // Return NO if you do not want the specified item to be editable. return YES; } */ /* // Override to support editing the table view. - (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath { if (editingStyle == UITableViewCellEditingStyleDelete) { // Delete the row from the data source [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:YES]; } else if (editingStyle == UITableViewCellEditingStyleInsert) { // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view } } */ /* // Override to support rearranging the table view. - (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath { } */ /* // Override to support conditional rearranging of the table view. - (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath { // Return NO if you do not want the item to be re-orderable. return YES; } */ #pragma mark - #pragma mark Table view delegate - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { self.detailController.incident = [incidents objectAtIndex:indexPath.row]; [self.navigationController pushViewController:self.detailController animated:YES]; } #pragma mark - #pragma mark Memory management - (void)didReceiveMemoryWarning { // Releases the view if it doesn't have a superview. [super didReceiveMemoryWarning]; // Relinquish ownership any cached data, images, etc that aren't in use. } - (void)viewDidUnload { // Relinquish ownership of anything that can be recreated in viewDidLoad or on demand. // For example: self.myOutlet = nil; } - (void)parserDidEndParsingData:(IncidentsImporter *)parser { [ctableView reloadData]; self.navigationItem.rightBarButtonItem.enabled = YES; self.parser = nil; } - (void)parser:(IncidentsImporter *)parser didParseIncidents:(NSArray *)parsedIncidents { //[incidents addObjectsFromArray: parsedIncidents]; // Three scroll view properties are checked to keep the user interface smooth during parse. When new objects are delivered by the parser, the table view is reloaded to display them. If the table is reloaded while the user is scrolling, this can result in eratic behavior. dragging, tracking, and decelerating can be checked for this purpose. When the parser finishes, reloadData will be called in parserDidEndParsingData:, guaranteeing that all data will ultimately be displayed even if reloadData is not called in this method because of user interaction. if (!ctableView.dragging && !ctableView.tracking && !ctableView.decelerating) { self.title = [NSString stringWithFormat:NSLocalizedString(@"Top %d Songs", @"Top Songs format"), [parsedIncidents count]]; [ctableView reloadData]; } } - (void)parser:(IncidentsImporter *)parser didFailWithError:(NSError *)error { // handle errors as appropriate to your application... } - (void)dealloc { [super dealloc]; } @end

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  • Iphone build error - literal-pointer symbol(s) not found

    - by Nick
    Sorry I imagine I'm missing something basic here. Before I write up a bunch of details on the specifics of the class I'd appreciate a nudge or smack on the head about the meaning of this build error. I have a subclass of NSObject SiteAnnotation that should be conforming to the MKAnnotation protocol. It is #imported in the ViewController in question When I try to alloc/init: SiteAnnotation *thisAnnotation = [[SiteAnnotation alloc] init]; This is the build error which occurs: Link /build/Debug-iphonesimulator/testbed.app/testbed ".objc_class_name_SiteAnnotation", referenced from: literal-pointer@__OBJC@__cls_refs@SiteAnnotation in MapViewController.o Symbol(s) not found collect2: ld returned 1 exit status Any tips appreciated.

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  • UIWebView action sheet popup on a link - customization

    - by alided
    Hi, I'm trying to replace or add more options into the action sheet popup in uiwebview. When touching long touch on a link standard uiwebview popup shows up. I saw some apps which did it, but i can't figure it out. the standard options are : open or copy, i want to hide copy and add send email. Any help ? Thanks Albert

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  • Why is UIApplicationWillChangeStatusBarFrameNotification not sent when the in-call status bar is sho

    - by Sbrocket
    I've been trying to listen for changes in the status bar height – such as when the in-call status bar is shown or hidden – by listening for the UIApplicationWillChangeStatusBarFrameNotification notification to be sent. Fairly straightforward code here... [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(statusBarWillChangeFrame:) name:UIApplicationWillChangeStatusBarFrameNotification object:nil]; But the notification never seems to be sent in that case, either on the Simulator by using the "Toggle In-Call Status Bar" option or on the device when a call ends with the application open. In addition, the similar UIApplicationDelegate method is not called. According to the documentation, UIApplicationWillChangeStatusBarFrameNotification Posted when the application is about to change the frame of the status bar. The userInfo dictionary contains an NSValue object that encapsulates a CGRect structure expressing the location and size of the new status bar frame. Use UIApplicationStatusBarFrameUserInfoKey to access this value. Can anyone explain why this notification is not being sent in response to the in-call status bar being shown or hidden? According to the documentation, it should be.

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  • how to play video from url

    - by priyanka
    i am biginner in android development and try to play video from link but it's give error "sorry,we can't play this video" i tride so many links but for all links its show same error. My code it follwing public class VideoDemo extends Activity { private static final String path ="http://demo.digi-corp.com/S2LWebservice/Resources/SampleVideo.mp4"; private VideoView video; private MediaController ctlr; @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); getWindow().setFormat(PixelFormat.TRANSLUCENT); setContentView(R.layout.videoview); video = (VideoView) findViewById(R.id.video); video.setVideoPath(path); ctlr = new MediaController(this); ctlr.setMediaPlayer(video); video.setMediaController(ctlr); video.requestFocus(); } } thansk in advance

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  • Why does my UIActivityIndicatorView only display once?

    - by Schwigg
    I'm developing an iPhone app that features a tab-bar based navigation with five tabs. Each tab contains a UITableView whose data is retrieved remotely. Ideally, I would like to use a single UIActivityIndicatorView (a subview of the window) that is started/stopped during this remote retrieval - once per tab. Here's how I set up the spinner in the AppDelegate: - (void)applicationDidFinishLaunching:(UIApplication *)application { [window addSubview:rootController.view]; activityIndicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge]; [activityIndicator setCenter:CGPointMake(160, 200)]; [window addSubview:activityIndicator]; [window makeKeyAndVisible]; } Since my tabs were all performing a similiar function, I created a base class that all of my tabs' ViewControllers inherit from. Here is the method I'm using to do the remote retrieval: - (void)parseXMLFileAtURL:(NSString *)URL { NSAutoreleasePool *apool = [[NSAutoreleasePool alloc] init]; AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate]; NSLog(@"parseXMLFileAtURL started."); [appDelegate.activityIndicator startAnimating]; NSLog(@"appDelegate.activityIndicator: %@", appDelegate.activityIndicator); articles = [[NSMutableArray alloc] init]; NSURL *xmlURL = [NSURL URLWithString:URL]; rssParser = [[NSXMLParser alloc] initWithContentsOfURL:xmlURL]; [rssParser setDelegate:self]; [rssParser setShouldProcessNamespaces:NO]; [rssParser setShouldReportNamespacePrefixes:NO]; [rssParser setShouldResolveExternalEntities:NO]; [rssParser parse]; NSLog(@"parseXMLFileAtURL finished."); [appDelegate.activityIndicator stopAnimating]; [apool release]; } This method is being called by each view controller as follows: - (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; if ([articles count] == 0) { NSString *path = @"http://www.myproject.com/rss1.xml"; [self performSelectorInBackground:@selector(parseXMLFileAtURL:) withObject:path]; } } This works great while the application loads the first tab's content. I'm presented with the empty table and the spinner. As soon as the content loads, the spinner goes away. Strangely, when I click the second tab, the NSLog messages from the -parseXMLFileAtURL: method show up in the log, but the screen hangs on the first tab's view and I do not see the spinner. As soon as the content is done downloading, the second tab's view appears. I suspect this has something to do with threading, with which I'm still becoming acquainted. Am I doing something obviously wrong here?

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  • Infinite loop when adding CATiledLayer to UIView

    - by Jean
    I have a UIView in which I add a CATiledLayer and implement 'drawLayer'. If I use a UIViewController and add the layer to a new subview of the controller, then everything is ok. If I however try to use a UIView to and do all the craetion and drawing within this, then I get a infinite loop at the point shown below when I add this view to a superview. 0x002cfafb <+0425> ja 0x2cfa23 <-[UIView(Hierarchy) _makeSubtreePerformSelector:withObject:withObject:copySublayers:]+209> What am I missing?

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  • key value coding-compliant for NSObject class?

    - by 4thSpace
    I've created a singleton class that loads a plist. I keep getting this error when I try to set a value: '[ setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key test.' I have one key in the plist file. The key is named "test" and has no value associated with it. I set the value like this: [[PlistManager sharedManager].plist setValue:@"the title value" forKey:@"test"]; I look at the set plist dictionary and see this from within PlistManager: po self.plistDictionary { test = ""; } I get the error just as I'm leaving PlistManager in the debugger. PlistManager is of type NSObject. So no xibs. Any ideas on what I need to do?

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  • Reflection to access advanced telephony features

    - by Tyler
    I am trying to use reflection to access some advanced features of the telephony api not published. Currently I am having trouble instantiating a serviceManager object that is needed to get the "phone" service as a binder which I can then use to instantiate a telephony object which is needed to make a call, end call, etc... currently when I make the call serviceManagerObject = tempInterfaceMethod.invoke(null, new Object[] { new Binder() }); it returns a nullPointerException. I believe this has to due with creating a new Binder instead of sending the appropriate binder (which I am unsure of which one is appropriate) public void placeReflectedCall() throws ClassNotFoundException, SecurityException, NoSuchMethodException, IllegalArgumentException, IllegalAccessException, InvocationTargetException, InstantiationException { String serviceManagerName = "android.os.IServiceManager"; String serviceManagerNativeName = "android.os.ServiceManagerNative"; String telephonyName = "com.android.internal.telephony.ITelephony"; Class telephonyClass; Class telephonyStubClass; Class serviceManagerClass; Class serviceManagerStubClass; Class serviceManagerNativeClass; Class serviceManagerNativeStubClass; Method telephonyCall; Method telephonyEndCall; Method telephonyAnswerCall; Method getDefault; Method[] temps; Constructor[] serviceManagerConstructor; // Method getService; Object telephonyObject; Object serviceManagerObject; String number = "1111111111"; telephonyClass = Class.forName(telephonyName); telephonyStubClass = telephonyClass.getClasses()[0]; serviceManagerClass = Class.forName(serviceManagerName); serviceManagerNativeClass = Class.forName(serviceManagerNativeName); Method getService = // getDefaults[29]; serviceManagerClass.getMethod("getService", String.class); Method tempInterfaceMethod = serviceManagerNativeClass.getMethod( "asInterface", IBinder.class); // this does not work serviceManagerObject = tempInterfaceMethod.invoke(null, new Object[] { new Binder() }); IBinder retbinder = (IBinder) getService.invoke(serviceManagerObject, "phone"); Method serviceMethod = telephonyStubClass.getMethod("asInterface", IBinder.class); telephonyObject = serviceMethod .invoke(null, new Object[] { retbinder }); telephonyCall = telephonyClass.getMethod("call", String.class); telephonyEndCall = telephonyClass.getMethod("endCall"); telephonyAnswerCall = telephonyClass.getMethod("answerRingingCall"); telephonyCall.invoke(telephonyObject, number); } Thanks in advance for any answers.

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  • How to programatically set drawableLeft on Android button?

    - by Frank LoVecchio
    I'm dynamically creating buttons. I styled them using XML first, and I'm trying to take the XML below and make it programattic. <Button android:id="@+id/buttonIdDoesntMatter" android:layout_height="wrap_content" android:layout_width="fill_parent" android:text="buttonName" android:drawableLeft="@drawable/imageWillChange" android:onClick="listener" android:layout_width="fill_parent"> </Button> This is what I have so far. I can do everything but the drawable. linear = (LinearLayout) findViewById(R.id.LinearView); Button button = new Button(this); button.setText("Button"); button.setOnClickListener(listener); button.setLayoutParams( new LayoutParams( android.view.ViewGroup.LayoutParams.FILL_PARENT, android.view.ViewGroup.LayoutParams.WRAP_CONTENT ) ); linear.addView(button);

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  • Animating custom-drawn UITableViewCell when entering edit mode

    - by Adam Alexander
    Background First of all, much gratitude to atebits for their very informative blog post Fast Scrolling in Tweetie with UITableView. The post explains in detail how the developers were able to squeeze as much scrolling performance as possible out of the UITableViews in Tweetie. Goals Beginning with the source code linked from the blog post (original) (my github repo): Allow a UITableView using these custom cells to switch to edit mode, exposing the UI for deleting an item from the table. (github commit) Move the cell's text aside as the deletion control slides in from the left. This is complete, although the text jumps back and forth without animation. (github commit) Apply animation to the text movement in goal 2 above for a smooth user experience. This is the step where I became stuck. The Question What is the best way to introduce this animation to complete goal 3? It would be nice if this could be done in a manner that keeps the logic from my last commit because I would love the option to move the conflicting part of the view only, while any non-conflicting portions (such as right-justified text) stay in the same place or move a different number of pixels. If the above is not possible then undoing my last commit and replacing it with an option that slides the entire view to the right would be a workable solution also. I appreciate any help anyone can provide, from quick pointers and ideas all the way to code snippets or github commits. Of course you are welcome to fork my repo if you would like. I will be staying involved with this question to make sure any successful resolution is committed to github and fully documented here. Thanks very much for your time! Updated thoughts I have been thinking about this a lot since my first post and realized that moving some text items relative to others in the view could undo some of the original performance goals solved in the original blog post. So at this point I am thinking a solution where the entire single subview is animated to its new postion may be the best one. Second, if it is done in this way there may be an instance where the subview has a custom color or gradient background. Hopefully this can be done in a way that in its normal position the background extends unseen off to the left enough so that when the view is slid to the right the custom background is still visible across the entire cell.

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  • willAnimateRotationToInterfaceOrientation not firing iphone UIInterfaceOrientation

    - by harekam_taj
    Hello, I have a view inside a tabbarcontroller and navigationcontroller and my willAnimateRotationToInterfaceOrientation method is not firing. I have set the view to be FirstResponder and also shouldAutorotateToInterfaceOrientation returning YES; - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation) interfaceOrientation { return YES; } -(BOOL)canBecomeFirstResponder { return YES; } [self becomeFirstResponder];

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  • iPhone Foundation - performance implications of mutable and xxxWithCapacity:0

    - by Adam Eberbach
    All of the collection classes have two versions - mutable and immutable, such as NSArray and NSMutableArray. Is the distinction merely to promote careful programming by providing a const collection or is there some performance hit when using a mutable object as opposed to immutable? Similarly each of the collection classes has a method xxxxWithCapacity, like [NSMutableArray arrayWithCapacity:0]. I often use zero as the argument because it seems a better choice than guessing wrongly how many objects might be added. Is there some performance advantage to creating a collection with capacity for enough objects in advance? If not why isn't the function something like + (id)emptyArray?

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  • Custom UISwitch & App Store approval

    - by pix0r
    After doing some reading, I've found that you can customize the text and color on a UISwitch control. I'm curious if these methods will cause problems trying to get my app approved and included in the App Store. Sample code taken from iPhone Developer's Cookbook Sample Code: // Custom font, color switchView = [[UICustomSwitch alloc] initWithFrame:CGRectZero]; [switchView setCenter:CGPointMake(160.0f,260.0f)]; [switchView setLeftLabelText: @"Foo"]; [switchView setRightLabelText: @"Bar"]; [[switchView rightLabel] setFont:[UIFont fontWithName:@"Georgia" size:16.0f]]; [[switchView leftLabel] setFont:[UIFont fontWithName:@"Georgia" size:16.0f]]; [[switchView leftLabel] setTextColor:[UIColor yellowColor]];

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  • UIImagePickerController Causes my app to crash!

    - by Flafla2
    In my app, a user can select an image, change the picture of a UIImageView to the new imge, and save the image to NSUserDefaults using NSKeyedArchiver. When the user selects the image the app immediately crashes! Here is my code - - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { [picker dismissModalViewControllerAnimated:YES]; if ([[NSUserDefaults standardUserDefaults] integerForKey:@"PictureKey"] == 1) { UIImage *previmage = [info objectForKey:@"UIImagePickerControllerOriginalImage"]; [prevbutton setImage:previmage]; NSData *previmagedata = [NSKeyedArchiver archivedDataWithRootObject:previmage]; [[NSUserDefaults standardUserDefaults] setObject:previmagedata forKey:@"PrevImage"]; } else if ([[NSUserDefaults standardUserDefaults] integerForKey:@"PictureKey"] == 2) { UIImage *nextimage = [info objectForKey:@"UIImagePickerControllerOriginalImage"]; [nextbutton setImage:nextimage]; NSData *nextimagedata = [NSKeyedArchiver archivedDataWithRootObject:nextimage]; [[NSUserDefaults standardUserDefaults] setObject:nextimagedata forKey:@"NextImage"]; }else { UIImage *optionsimage = [info objectForKey:@"UIImagePickerControllerOriginalImage"]; [moreoptionsbutton setImage:optionsimage]; NSData *optimagedata = [NSKeyedArchiver archivedDataWithRootObject:optionsimage]; [[NSUserDefaults standardUserDefaults] setObject:optimagedata forKey:@"OptionsImage"]; } } Thanks in advance!

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  • Alternatives to GameKIt for iPhone to iPhone transfer

    - by Mike
    I am needing to transfer information as an NSData object from one iPhone to another inside an application and was originally planning on using Bluetooth/GameKit, but the data looks like it will be in the neighborhood of 500KB - 1MB in size. I don't think this is going to fly with GameKit (Bluetooth) as it will take forever and it seems like people are having all kinds of issues with GK anyway. I'd prefer the users to not have to be on the same WiFi network to make it work but am running out of options and time so I'd probably be happy with whatever works. What is a reasonable alternative? The simpler the setup the better or something with sample code would be greatly appreciated and preferred. Thanks.

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