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  • cant show MBProgressHUD

    - by dejoong
    In here said that using MBProgressHUD is easy. But i cant make it. Here my code: - (IBAction)save{ HUD = [[MBProgressHUD alloc] initWithView:self.navigationController.view]; [self.navigationController.view addSubview:HUD]; HUD.delegate = self; [HUD show:YES]; NSString *title = [page stringByEvaluatingJavaScriptFromString:@"document.title"]; SavePageAs *savePage = [[SavePageAs alloc] initWithUrl:self.site directory:title]; [savePage save]; [HUD hide:YES]; } the progress indicator not show during [savePage save] method run, but show after the page completely saved (the indicator show for less than 1 second). I also tried this way: - (IBAction)save { HUD = [[MBProgressHUD alloc] initWithView:self.navigationController.view]; [self.navigationController.view addSubview:HUD]; HUD.delegate = self; HUD.labelText = @"Saving..."; [HUD showWhileExecuting:@selector(performFetchOnMainThread) onTarget:self withObject:nil animated:YES]; } - (void) savingPage{ NSString *title = [page stringByEvaluatingJavaScriptFromString:@"document.title"]; SavePageAs *savePage = [[SavePageAs alloc] initWithUrl:self.site directory:title]; [savePage save]; } -(void) performFetchOnMainThread { [self performSelectorOnMainThread:@selector(savingPage) withObject:nil waitUntilDone:YES]; } but still no luck. Anyone let me know where im lack here?? P.S [savePage save] is saving all website contents to local directory. I wish once the saving is complete the progressHUD disappear. Thanks

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  • [obj-c] autorelease problem

    - by BQuadra
    Why the NSArray allocated with arrayWithObjects dealloc automatically if already used by BObject object?? in teory NSArray must remain allocated all the BObject life time... [[BObject alloc] initObjectName:@"oneObject" states: [NSArray arrayWithObjects: [[State alloc] initStateName:@"stand_front" singleImg:[NSArray arrayWithObjects:[UIImage imageNamed:@"front_1.png"], nil]], [[State alloc] initStateName:@"front_walking" frames: [NSArray arrayWithObjects: [UIImage imageNamed:@"front_1.png"], [UIImage imageNamed:@"front_2.png"], [UIImage imageNamed:@"front_3.png"], [UIImage imageNamed:@"front_4.png"], [UIImage imageNamed:@"front_5.png"], [UIImage imageNamed:@"front_6.png"], [UIImage imageNamed:@"front_7.png"], [UIImage imageNamed:@"front_8.png"], nil] duration:0.8 repeat:0], nil] isSolid:TRUE];

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  • could I know which file is altered using fsevent?

    - by Frost Li
    I get the directory path from fsevent, such as "/User/Data/" But what I really want is "/User/Data/change.txt" I have read the programming guide, it said typedef void ( *FSEventStreamCallback )( ConstFSEventStreamRef streamRef, void *clientCallBackInfo, size_t numEvents, void *eventPaths, const FSEventStreamEventFlags eventFlags[], const FSEventStreamEventId eventIds[]); eventPaths An array of paths to the directories in which event(s) occurred. is there any method to find out which file is altered? thanks!!!! I have stuck to it for so long..

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  • MPMoviePlayerController doesn't implement MPMediaPlayback protocol as advertised?

    - by goren
    I'm trying to use the MPMediaPlayback protocol's currentPlaybackRate() to slow down a video. I'm confused though as the class MPMoviePlayerController states that: You can control most aspects of playback programmatically using the methods and properties of the MPMediaPlayback protocol, to which this class conforms. Except just above in the header here: http://developer.apple.com/iphone/library/documentation/MediaPlayer/Reference/MPMoviePlayerController_Class/MPMoviePlayerController/MPMoviePlayerController.html it doesn't seem to. All I want to do is slow down the playback rate for a video.

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  • UITableView section index overlaps search bar

    - by Snej
    Hi: I want to display a section index in an UITableView with a search bar in the table view header (not section header). But the index strip is now overlapping the search bar. Is there an elegant solution to avoid this and let the index start below the table header?

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  • How to have two UIPickerViews together in one ViewController?

    - by 0SX
    I'm trying to put 2 UIPickerViews together in one ViewController. Each UIPickerView has different data arrays. I'm using interface builder to link the pickers up. I know I'll have to use separate delegates and dataSources but I can't seem to hook everything up with interface builder correctly. Here's all my code: pickerTesting.h #import <UIKit/UIKit.h> #import "picker2DataSource.h" @interface pickerTestingViewController : UIViewController <UIPickerViewDelegate, UIPickerViewDataSource>{ IBOutlet UIPickerView *picker; IBOutlet UIPickerView *picker2; NSMutableArray *pickerViewArray; } @property (nonatomic, retain) IBOutlet UIPickerView *picker; @property (nonatomic, retain) IBOutlet UIPickerView *picker2; @property (nonatomic, retain) NSMutableArray *pickerViewArray; @end pickerTesting.m #import "pickerTestingViewController.h" @implementation pickerTestingViewController @synthesize picker, picker2, pickerViewArray; - (void)viewDidLoad { [super viewDidLoad]; pickerViewArray = [[NSMutableArray alloc] init]; [pickerViewArray addObject:@" 100 "]; [pickerViewArray addObject:@" 200 "]; [pickerViewArray addObject:@" 400 "]; [pickerViewArray addObject:@" 600 "]; [pickerViewArray addObject:@" 1000 "]; [picker selectRow:1 inComponent:0 animated:NO]; picker2.delegate = self; picker2.dataSource = self; } - (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)picker; { return 1; } - (void)pickerView:(UIPickerView *)picker didSelectRow:(NSInteger)row inComponent:(NSInteger)component { } - (NSInteger)pickerView:(UIPickerView *)picker numberOfRowsInComponent:(NSInteger)component; { return [pickerViewArray count]; } - (NSString *)pickerView:(UIPickerView *)picker titleForRow:(NSInteger)row forComponent:(NSInteger)component; { return [pickerViewArray objectAtIndex:row]; } - (void)didReceiveMemoryWarning { // Releases the view if it doesn't have a superview. [super didReceiveMemoryWarning]; // Release any cached data, images, etc that aren't in use. } - (void)viewDidUnload { // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; } - (void)dealloc { [super dealloc]; } @end And I have a separate class for the other datasource. picker2DataSource.h @interface picker2DataSource : NSObject <UIPickerViewDataSource, UIPickerViewDelegate> { NSMutableArray *customPickerArray; } @property (nonatomic, retain) NSMutableArray *customPickerArray; @end picker2DataSource.m #import "picker2DataSource.h" @implementation picker2DataSource @synthesize customPickerArray; - (id)init { // use predetermined frame size self = [super init]; if (self) { customPickerArray = [[NSMutableArray alloc] init]; [customPickerArray addObject:@" a "]; [customPickerArray addObject:@" b "]; [customPickerArray addObject:@" c "]; [customPickerArray addObject:@" d "]; [customPickerArray addObject:@" e "]; } return self; } - (void)dealloc { [customPickerArray release]; [super dealloc]; } - (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)picker2; { return 1; } - (void)pickerView:(UIPickerView *)picker2 didSelectRow:(NSInteger)row inComponent:(NSInteger)component { } - (NSInteger)pickerView:(UIPickerView *)picker2 numberOfRowsInComponent:(NSInteger)component; { return [customPickerArray count]; } - (NSString *)pickerView:(UIPickerView *)picker2 titleForRow:(NSInteger)row forComponent:(NSInteger)component; { return [customPickerArray objectAtIndex:row]; } @end Any help or code examples would be great. Thanks.

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  • SnowLeopard Xcode warning: "format not a string literal and no format arguments"

    - by Justin Galzic
    Since upgrading to the latest XCode 3.2.1 and SnowLeopard, I've been getting the warning, "format not a string literal and no format arguments" on the following: NSError *error = nil; if (![self.managedObjectContext save:&error]) { NSLog([NSString stringWithFormat:@"%@ %@, %@", errorMsgFormat, error, [error userInfo]]); } If 'errorMsgFormat' is an NSString with format specifiers (eg: "print me like this: %@"), what is wrong with the above NSLog statement? And what is the recommended way to fix it so that the warning isn't generated?

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  • Simultaneous gesture recognizers in Iphone SDK

    - by minaevs
    I need to catch two different swipping gestures using UISwipeGestureRecognizer(for example, UISwipeGestureRecognizerDirectionRight and UISwipeGestureRecognizerDirectionLeft). When I add two different recognisers with addGestureRecognizer method, only last added recognizer works. I've read that I need to implement gestureRecognizer:shouldRecognizeSimultaneouslyWithGestureRecognizer: method of UIGestureRecognizerDelegate protocol, but nothing works. Can anyone help with simple example of catching two or more same gestures? Thanks!

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  • Problem with the scrollbar of a UIWebView

    - by Paulo Ferreira
    Hi there! Im using a UIWebView to access a website, when i rotate the phone (landscape) the UIWebView is properly resized and the scrollbar are on the right place (on the right edge...) but when i acess any of input fields to fill the information required and exit it the UIWebView scrollbar jumps to the middle of screen (looks like it get back to 320, the width of the screen on portrait). Some useful info, this program was created using IB, have lots of outlets, im thinking about in do (redo) everything programmatically cause i was not the author of the first version... If anyone have seen this before plz let me know.. Thanks in advance!

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  • iPhone UILabel text soft shadow

    - by Dimitris
    I know soft shadows are not supported by the UILabel our of the box, on the iPhone. So what would be the best way to implement my own one? EDIT: Obviously I will subclass the UILabel and draw in the -drawRect: My question is, how do I get the contents of the label as graphics and draw around them, blur them etc...

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  • Collection <NSCFSet: 0x1b0b30> was mutated while being enumerated. How to determine which set?

    - by jamone
    I'm doing a bunch of core data inserts and after 20k or so inserts with saves every 1-2k I get this error: Terminating app due to uncaught exception 'NSGenericException', reason: '*** Collection <NSCFSet: 0x1b0b30> was mutated while being enumerated.' I'm trying to figure out which NSSet is causing this. I've done a search and the only NSSets in my code are the autogenerated ones that handle the Core Data relationships. I'm using NSXMLParser and for each element found creating a new entity (if a matching one doesn't already exist). So I will create a state entity and then populate all the city entities and then do a save. This means that a state's NSSet *cities is getting added to but I don't see why you can't do that.

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  • Turning an NSImage* into a CGImageRef?

    - by Brian Postow
    Is there an easy way to do this that works in 10.5? In 10.6 I can use nsImage CGImageForProposedRect: NULL context: NULL hints: NULL If I'm not using 1b black and white images (Like Group 4 TIFF), I can use bitmaps, but cgbitmaps seem to not like that setup... Is there a general way of doing this? I need to do this because I have an IKImageView that seems to only want to add CGImages, but all I've got are NSImages. Currently, I'm using a private setImage:(NSImage*) method that I'd REALLY REALLY rather not be using...

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  • How to use LIKE query in sqlite & iPhone

    - by 4thSpace
    I'm using the following for a LIKE query. Is this technique for LIKE correct? selectstmtSearch = nil; if(selectstmtSearch == nil){ const char *sql = "SELECT col1, col2 FROM table1 t1 JOIN table2 t2 ON t1.cityid = t2.cityid where t1.cityname like ?001 order by t1.cityname"; if(sqlite3_prepare_v2(databaseSearch, sql, -1, &selectstmtSearch, NULL) == SQLITE_OK) { sqlite3_bind_text(selectstmtSearch, 1, [[NSString stringWithFormat:@"%%%@%%", searchText] UTF8String], -1, SQLITE_TRANSIENT); } } The problem I'm having is after a few uses of this, I get an error 14 on sqlite3_open(), which is unable to open database. If I replace the LIKE with something such as: SELECT col1, col2 FROM table1 t1 JOIN table2 t2 ON t1.cityid = t2.cityid where t1.cityname = ? order by t1.cityname It works fine. I do open/close the DB before after the above code. Is there a way to troubleshoot exactly why the database can't be opened and what its relationship to my LIKE syntax is?

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  • How to resolve a NULL cString crash

    - by hanumanDev
    I'm getting a crash with the following encoding fix I'm trying to implement: // encoding fix NSString *correctStringTitle = [NSString stringWithCString:[[item objectForKey:@"main_tag"] cStringUsingEncoding:NSISOLatin1StringEncoding] encoding:NSUTF8StringEncoding]; cell.titleLabel.text = [correctStringTitle capitalizedString]; my crash log output states: *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** +[NSString stringWithCString:encoding:]: NULL cString' thanks for any help

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  • iPhone:How to make an integer array and store values in Obj-C?

    - by user187532
    Hi, I want to know a simple thing, which i couldn't get it is that i want to store 10 values in an integer array dynamically and then i have to check that stored values and compared with the current values whether it is same or not in some other condition. Initially i tried same like C array, int temp[10], but seems to be that is not possible to set and get method, then i tried NSNumber like below, In AppDelagate file, NSMutableArray *reqID; @property (nonatomic,readwrite) NSMutableArray * reqID; @synthesize reqID; ........................ ........................ ........................ In Some other file, int rd = (1+arc4random() % [arr count]); [myDelagate.reqID addObject:[NSNumber numberWithUnsignedInteger:rd]]; then i need to check, for (int i=0; i<10; i++) { NSUInteger anInt = [[amyDelagate.reqID objectAtIndex:i] unsignedIntegerValue]; if ( anInt==rd ) { rd = (1+arc4random() % [arr count]); break; } } [myDelagate.reqID addObject:[NSNumber numberWithUnsignedInteger:rd]]; But it doesn' work as expected, i.e array value doesn't give proper value. i don't know how to use integer array in Obj-C and handle it to access later etc. Could someone please explian me?

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  • iPhone app running in Instruments fails with unrecognized selector

    - by Mark Smith
    I have an app that appears to run without problems in normal use. The Clang Static Analyzer reports no problems either. When I try to run it in Instruments, it fails with an unrecognized selector exception. The offending line is a simple property setter of the form: self.bar = baz; To figure out what's going on, I added an NSLog() call immediately above it: NSLog(@"class = %@ responds = %d", [self class], [self respondsToSelector:@selector(setBar:)]); self.bar = baz; On the emulator (without Instruments) and on a device, this shows exactly what I'd expect: class = Foo responds = 1 When running under Instruments, I get: class = Foo responds = 0 I'm stumped as to what could cause this. Perhaps a different memory location is getting tromped on when it's in the Instruments environment? Can anyone suggest how I might debug this?

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  • timeIntervalSinceDate Accuracy

    - by mmccomb
    I've been working on a game with an engine that updates 20 times per seconds. I've got to point now where I want to start getting some performance figures and tweak the rendering and logic updates. In order to do so I started to add some timing code to my game loop, implemented as follows... NSDate* startTime = [NSDate date]; // Game update logic here.... // Also timing of smaller internal events NSDate* endTime = [NSDate date]; [endTime timeIntervalSinceDate:startTime]; I noticed however that when I timed blocks within the outer timing logic that the time they took to execute did not sum up to match the overall time taken. So I wrote a small unit test to demonstrate the problem in which I time the overall time taken to complete the test and then 10 smaller events, here it is... - (void)testThatSumOfTimingsMatchesOverallTiming { NSDate* startOfOverallTime = [NSDate date]; // Variable to hold summation of smaller timing events in the upcoming loop... float sumOfIndividualTimes = 0.0; NSTimeInterval times[10] = {0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0}; for (int i = 0; i < 10; i++) { NSDate* startOfIndividualTime = [NSDate date]; // Kill some time... sleep(1); NSDate* endOfIndividualTime = [NSDate date]; times[i] = [endOfIndividualTime timeIntervalSinceDate:startOfIndividualTime]; sumOfIndividualTimes += times[i]; } NSDate* endOfOverallTime = [NSDate date]; NSTimeInterval overallTimeTaken = [endOfOverallTime timeIntervalSinceDate:startOfOverallTime]; NSLog(@"Sum of individual times: %fms", sumOfIndividualTimes); NSLog(@"Overall time: %fms", overallTimeTaken); STAssertFalse(TRUE, @""); } And here's the output... Sum of individual times: 10.001377ms Overall time: 10.016834ms Which illustrates my problem quite clearly. The overall time was 0.000012ms but the smaller events took only 0.000001ms. So what happened to the other 0.000011ms? Is there anything that looks particularly wrong with my code? Or is there an alternative timing mechanism I should use?

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  • Setting corelocation results to NSNumber object parameters

    - by Dan Ray
    This is a weird one, y'all. - (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation { CLLocationCoordinate2D coordinate = newLocation.coordinate; self.mark.longitude = [NSNumber numberWithDouble:coordinate.longitude]; self.mark.latitude = [NSNumber numberWithDouble:coordinate.latitude]; NSLog(@"Got %f %f, set %f %f", coordinate.latitude, coordinate.longitude, self.mark.latitude, self.mark.longitude); [manager stopUpdatingLocation]; manager.delegate = nil; if (self.waitingForLocation) { [self completeUpload]; } } The latitude and longitude in that "mark" object are synthesized parameters referring to NSNumber iVars. In the simulator, my NSLog output for that line in the middle there reads: 2010-05-28 15:08:46.938 EverWondr[8375:207] Got 37.331689 -122.030731, set 0.000000 -44213283338325225829852024986561881455984640.000000 That's a WHOLE lot further East than 1 Infinite Loop! The numbers are different on the device, but similar--lat is still zero and long is a very unlikely high negative number. Elsewhere in the controller I'm accepting a button press and uploading a file (an image I just took with the camera) with its geocoding info associated, and I need that self.waitingForLocation to inform the CLLocationManager delegate that I already hit that button and once its done its deal, it should go ahead and fire off the upload. Thing is, up in the button-click-receiving method, I test see if CL is finished by testing self.mark.latitude, which seems to be getting set zero...

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  • progressIndicator does not update till about 10 seconds after awakeFromNib occures

    - by theprojectabot
    I have been trying to get this one section of my UI to immediatly up date when the document loads into view. The awakeFromNib fires the pasted code and then starts a timer to repeat every 10 seconds... I load a default storage location: ~/Movies... which shows up immediately.. yet the network location that is saved in the document that gets pulled from the XML only seems to show up after the second firing of the - (void)updateDiskSpaceDisplay timer. I have set breakpoints and know that the ivars that contain the values that are being put into the *fileSystemAttributes is the network location right when the awakeFromNib occurs... Im confused why it magically appears after the second time firing instead of immediately displaying the write values. - (void)updateDiskSpaceDisplay { // Obtain information about the file system used on the selected storage path. NSError *error = NULL; NSDictionary *fileSystemAttributes = [[NSFileManager defaultManager] attributesOfFileSystemForPath:[[[self settings] containerSettings] storagePath] error:&error]; if( !fileSystemAttributes ) return; // Get the byte capacity of the drive. long long byteCapacity = [[fileSystemAttributes objectForKey:NSFileSystemSize] unsignedLongLongValue]; // Get the number of free bytes. long long freeBytes = [[fileSystemAttributes objectForKey:NSFileSystemFreeSize] unsignedLongLongValue]; // Update the level indicator, and the text fields to show the current information. [totalDiskSpaceField setStringValue:[self formattedStringFromByteCount:byteCapacity]]; [totalDiskSpaceField setNeedsDisplay:YES]; [usedDiskSpaceField setStringValue:[self formattedStringFromByteCount:(byteCapacity - freeBytes)]]; [usedDiskSpaceField setNeedsDisplay:YES]; [diskSpaceIndicator setMaxValue:100]; [diskSpaceIndicator setIntValue:(((float) (byteCapacity - freeBytes) / (float) byteCapacity) * 100.0)]; [diskSpaceIndicator display:YES]; } thoughts? my awakeFromNib: - (void)awakeFromNib { [documentWindow setAcceptsMouseMovedEvents:YES]; [documentWindow setDelegate:self]; [self updateSettingsDisplay]; [self updateDiskSpaceDisplay]; [self setDiskSpaceUpdateTimer:[NSTimer scheduledTimerWithTimeInterval:10.0 target:self selector:@selector(updateDiskSpaceDisplay) userInfo:NULL repeats:YES]]; [self setUpClipInfoTabButtons]; [self performSelector:@selector(setupEngineController) withObject:NULL afterDelay:0.1]; }

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  • [[UIDevice currentDevice] orientation] always null

    - by Toby Wilson
    As per the title. Calling [[UIDevice currentDevice] BeginGeneratingDeviceOrientationNotifications] has no effect. DidRotateToInterfaceOrientation etc events are working fine, but I need to be able to poll the device orientation arbitrarily. How can I fix/do this? The long story: I have a tab application with a navigation controller on each tab. The root view of tab number one is a graph that goes full screen when the orientation changes to landscape; however this needs to be checked whenever the view appears as the orientation change could have occurred elsewhere, so I was hoping to poll the orientation state whenever this view appears.

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