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  • Having Issues with a utility app...

    - by Alex
    How do I accept data on the backside of a utility app, and then how do I let users modify that data? I've tried all sorts of tutorials, but to no avail. If you need further information let me know. Thanks in advanced.

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  • dismissing uiwebview

    - by chimgrrl
    Ok, I really spend 2 days on this and it has gotten me stumped. From my main UIViewController I called a WebViewController which is a UIViewController with a UIWebView inside: UOLCategoriesWebViewController *ucwvcontroller = [[UOLCategoriesWebViewController alloc] initWithNibName:@"UOLCategoriesWebViewController" bundle:nil]; [self presentModalViewController:ucwvcontroller animated:YES]; [ucwvcontroller release]; Inside the UOLCategoriesWebViewController I've call the delegate method shouldStartLoadWithRequest where when the user clicks on a particular type of link it parses out the params and return back to the main UIViewController (or at least that's what I want it to do): - (BOOL)webView:(UIWebView*)webView shouldStartLoadWithRequest:(NSURLRequest*)request navigationType:(UIWebViewNavigationType)navigationType { BOOL continueOrExit = YES; NSURL *url = request.URL; NSString *urlString = [url relativeString]; NSString *urlParams = [url query]; NSArray *urlParamArr = [urlParams componentsSeparatedByString:@"&"]; NSLog(@"the url is: %@",urlString); //NSLog(@"the params are: %@,%@",[urlParamArr objectAtIndex:0],[urlParamArr objectAtIndex:1]); //BOOL endTrain1 = [[urlParamArr objectAtIndex:1] hasPrefix:@"subCatValue"]; //BOOL endTrain2 = ([urlParamArr objectAtIndex:1 //NSLog(@"Number of elements: %@",[urlParamArr count]); if (navigationType == UIWebViewNavigationTypeLinkClicked) { //NSLog(@"Enter into His glory"); if ([urlString hasSuffix:@"categories_list.php"]) { //NSLog(@"2nd Heaven"); continueOrExit = YES; }else if ([[urlParamArr objectAtIndex:1] hasPrefix:@"subCatValue"]) { continueOrExit = NO; NSLog(@"end of the train"); NSArray *firstParamStringArr = [[urlParamArr objectAtIndex:0] componentsSeparatedByString:@"="]; NSArray *secondParamStringArr = [[urlParamArr objectAtIndex:1] componentsSeparatedByString:@"="]; NSString *catSelected = [firstParamStringArr objectAtIndex:1]; NSString *subCatSelected = [secondParamStringArr objectAtIndex:1]; //go back to native app [self goBackToMain:catSelected andSubCat:subCatSelected]; } } return continueOrExit; } Actually in the above function where I am calling the goBackToMain method I want it to call the delegate method and return to the mainviewcontroller. Unfortunately after executing that goBackToMain method it goes back to this method and continue to return continueOrExit. Is there anyway to make it truly exit without returning anything? I've tried putting in multiple returns to no avail. Or can I in the html page pass some javascript to directly call this method so that I don't have to go through this delegate method? Thanks for the help in advance!

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  • What causes a UIViewController to become active?

    - by Rob Bonner
    I am sure this is an easy question, but one that has escaped me for some time now. Say I have a UIViewController, either defined as a root in an XIB or on a stack. At some point in my code I want to replace it with another view controller. Just flat out replace it. How would I do that? I have tried defining the controller and assigning, but not sure what actually makes it push on the screen with the absence of a navigation controller.

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  • How to find which annotation send showDetails?

    - by Voloda2
    How to find which annotation send showDetails? MKPinAnnotationView* customPinView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:BridgeAnnotationIdentifier] autorelease]; customPinView.pinColor = MKPinAnnotationColorPurple; customPinView.animatesDrop = YES; customPinView.canShowCallout = YES; // add a detail disclosure button to the callout which will open a new view controller page // // note: you can assign a specific call out accessory view, or as MKMapViewDelegate you can implement: // - (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control; // UIButton* rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure]; [rightButton addTarget:self action:@selector(showDetails:) forControlEvents:UIControlEventTouchUpInside]; customPinView.rightCalloutAccessoryView = rightButton; return customPinView; - (void)showDetails:(id)sender { some code }

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  • Reranging a uitableview

    - by Nicolay
    Hallo @ All I ran into the same problem as desciped in http://stackoverflow.com/questions/1884491/crashing-while-trying-to-move-uitableview-rows! All I want to do is on specific reranging operations insert a new cell or delet the selected one! Sometimes I get a * Assertion failure in -[_UITableViewUpdateSupport _setupAnimationForReorderingRow], /SourceCache/UIKit/UIKit-963.10/UITableViewSupport.m:295 Attempt to create two animations for cell exception and when I want to reload my data by calling [self.tableView reloadData] I get a * Terminating app due to uncaught exception 'NSRangeException', reason: '* -[NSCFArray objectAtIndex:]: index (0) beyond bounds (0)' This is quiet anoying! Is there anybody out there who knows how to handle this problem? Please help me!

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  • adding a UIScrollView as a superview of 2 UITextview made no view can be scrolled

    - by Risma
    hi i have 2 textview in a viewcontroller. the 1st textview is not editable, but the 2nd is editable. i want to make both of them scroll in the same position and size when the keyboard is appear. I think i have to use UIScrollView as base of both of textview. And then i add the UIScrollView in xib (bot of textview are made in xib too). and this is the picture if this hierarchy : in the viewDidLoad method, i add this code : - (void)viewDidLoad { [super viewDidLoad]; [scrollTextView addSubview:lineNumberTextView]; [scrollTextView addSubview:_codeTextView]; [lineNumberTextView bringSubviewToFront:scrollTextView]; [_codeTextView bringSubviewToFront:scrollTextView]; } but after that i can't scroll anything. What i have to do? thx for the advices

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  • How to overwrite a convenience constructor the proper way?

    - by mystify
    For example I want to overwrite from UIButton: + (id)buttonWithType:(UIButtonType)buttonType So I would do: + (id)buttonWithType:(UIButtonType)buttonType { UIButton *button = [UIButton buttonWithType:buttonType]; if (button != nil) { // do own config stuff ... } return button; } is that the right way? Or did I miss something? (yeah, I have been overwriting thousands of instance methods, but never class methods ;) )

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  • word after the space NSlog

    - by DD007
    I am new bie to xcode may be question is silly but I am lagging with my home work. In a file I want to read a specific character after the string. I want to read all the character after the space. ex: asasasasasas wewewewewewe qwqwqwqwqwqw xyz_ 22 aaaaaaaaaaa bbbbbbbbbbb ccccccccccccccc ddddddddddddd fgfgfgfgfgfgfg ererererererer abc_ 12 bbbbbbbbbb dddddddd jkjkjkjkjkjkjk lalallalalalal everything is fine .. but i want to print after "xyz_ 22" as aaaaaaa then bbbb ccc

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  • Increase content size of UIWebView using Javascript

    - by Sam
    Hi folks, I have a translucent toolbar over the bottom of my UIWebView. The trouble is, if there is a link at the bottom of the page, I can't press it because the webview will always bounce back down to the bottom. I don't want to shrink the webview and use a solid colour toolbar, and UIWebViews interface doesn't open much up. What I would like to do, ideally, is to actually increase the size of the web page by one toolbar height, so that I can scroll that extra bit and have all the content above the toolbar, but when scrolling down I will be able to see the page content through the toolbar. I could use the stringByEvaluatingJavaScriptFromString: function of UIWebView. I'm very rusty on JavaScript- is it possible for me to do this? Increase the window height or something? I tried: [webView stringByEvaluatingJavaScriptFromString: [NSString stringWithFormat:@"window.resizeBy(0,%d);", TOOLBAR_HEIGHT] ]; but it didn't do anything. Any pointers welcome. Thanks.

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  • Does Core Data automatically validate new values when they are set?

    - by mystify
    In this question, someone asked how to write a validation method for Core Data. I did that, and it looks cool. But one thing doesn't happen: The validation. I can easily set any "bad" value and this method doesn't get called automatically. What's the concept behind this? Must I always first call the validation method before setting any value? So would I write setter methods which call the appropriate validation method first? And if yes, what's the point of following a strict convention in how to write the validation method signature? I guess there's also some automatic way of validation, then. How to activate this?

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  • Audio File continues to play even on leaving the view

    - by Swastik
    What I am doing is -(void)viewWillAppear:(BOOL)animated{ [NSTimer scheduledTimerWithTimeInterval:0.3 target:self selector:@selector(clickEvent:) userInfo:nil repeats:YES]; } -(void)clickEvent:(NSTimer *)aTimer{ NSDate* finishDate = [NSDate date]; if([finishDate timeIntervalSinceDate: self.startDate] 11 && touched == NO){ NSString *mp3Path = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"test.mp3"]; [self playMusicFile:mp3Path]; NSLog(@"Timer from First Page"); [aTimer invalidate]; //[touchCheckTimer release]; aTimer = nil; } else{ } -(void)playMusicFile:(NSString *)mp3Path{ NSURL *mp3Url = [NSURL fileURLWithPath:mp3Path]; NSError *err; AVAudioPlayer *audPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:mp3Url error:&err]; [self setAudioPlayer1:audPlayer]; if(audioPlayer1) [audioPlayer1 play]; [audPlayer release]; } Now, on pushing another view this audio file keeps playing in the background. Please help!

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  • How to align a UITableView's text?

    - by Knodel
    In my app I have a UITableView and I want to change the text's alignment to center (not only from the sides like this cell.textAlignment = UITextAlignmentCenter; but from up and down, as well). Can you help me? thanks in advance!

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  • JSON to display text -- Freezes UI

    - by Adam Storr
    Hi everyone, I currently have a very simple view which displays info from a JSON feed. The problem I'm facing is the few second pause I encounter once I press this tab. How can I make this view load instantly and then have the label.text areas load after? Preferable with an activity indicator? Should I use threads? Thanks in advance! Code: - (NSString *)stringWithUrl:(NSURL *)url { NSURLRequest *urlRequest = [NSURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadRevalidatingCacheData timeoutInterval:30]; NSData *urlData; NSURLResponse *response; NSError *error; urlData = [NSURLConnection sendSynchronousRequest:urlRequest returningResponse:&response error:&error]; return [[NSString alloc] initWithData:urlData encoding:NSUTF8StringEncoding]; } - (id)objectWithUrl:(NSURL *)url { SBJsonParser *jsonParser = [SBJsonParser new]; NSString *jsonString = [self stringWithUrl:url]; return [jsonParser objectWithString:jsonString error:NULL]; } - (NSDictionary *)downloadStats { id response = [self objectWithUrl:[NSURL URLWithString:@"http://www.example.com/JSON"]]; NSDictionary *feed = (NSDictionary *)response; return feed; [feed release]; } - (void)viewDidLoad { [super viewDidLoad]; [GlobalStatsScrollView setScrollEnabled:YES]; [GlobalStatsScrollView setContentSize:CGSizeMake(320, 360)]; } - (void)viewWillAppear:(BOOL)animated { NSLog(@"View appears"); // Download JSON Feed NSDictionary *feed = [self downloadStats]; totalproduced.text = [feed valueForKey:@"Produced"]; totalno.text = [feed valueForKey:@"Total"]; mostcommon.text = [feed valueForKey:@"Most Common"]; }

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  • can't able to integrate base64decode in my class

    - by MaheshBabu
    Hi folks, i am getting the image that is in base64 encoded format. I need to decode it. i am writing the code for decoding is + (NSData *) base64DataFromString: (NSString *)string { unsigned long ixtext, lentext; unsigned char ch, input[4], output[3]; short i, ixinput; Boolean flignore, flendtext = false; const char *temporary; NSMutableData *result; if (!string) return [NSData data]; ixtext = 0; temporary = [string UTF8String]; lentext = [string length]; result = [NSMutableData dataWithCapacity: lentext]; ixinput = 0; while (true) { if (ixtext >= lentext) break; ch = temporary[ixtext++]; flignore = false; if ((ch >= 'A') && (ch <= 'Z')) ch = ch - 'A'; else if ((ch >= 'a') && (ch <= 'z')) ch = ch - 'a' + 26; else if ((ch >= '0') && (ch <= '9')) ch = ch - '0' + 52; else if (ch == '+') ch = 62; else if (ch == '=') flendtext = true; else if (ch == '/') ch = 63; else flignore = true; if (!flignore) { short ctcharsinput = 3; Boolean flbreak = false; if (flendtext) { if (ixinput == 0) break; if ((ixinput == 1) || (ixinput == 2)) { ctcharsinput = 1; else ctcharsinput = 2; ixinput = 3; flbreak = true; } input[ixinput++] = ch; if (ixinput == 4) ixinput = 0; output[0] = (input[0] << 2) | ((input[1] & 0x30) >> 4); output[1] = ((input[1] & 0x0F) << 4) | ((input[2] & 0x3C) >> 2); output[2] = ((input[2] & 0x03) << 6) | (input[3] & 0x3F); for (i = 0; i < ctcharsinput; i++) [result appendBytes: &output[i] length: 1]; } if (flbreak) break; } return result; } i am calling this in my method like this NSData *data = [base64DataFromString:theXML]; theXML is encoded data. but it shows error decodeBase64 undeclared. How can i use this method. can any one pls help me. Thank u in advance.

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  • Switching between 2 UINavigationControllers

    - by Smikey
    Hi all, I seem to have a problem switching between 2 UINavigationControllers, i.e. one which controls the main (selection) menu of my application, and the second which controls the main session (i.e. the user can't go back to the selection menu once they're started a new session). The first works just fine, but I get into trouble when trying to load the second. I have a class called GameViewController which contains the second UINavigationController instance. I set this up as usual, linking it as an IBOutlet to the delegate and setting up the NavController in the GameViewController.xib file with its 'Class' property pointing at GameScreenViewController (my main game screen), and its NIB Name property pointing to the GameScreenViewController nib file. I then create a new instance of GameViewController and load it. In IB, the navigation controller looks fine, with its View 'loaded from "GameScreenViewController"', however when the NavigationController is loaded in the game, it actually loads the GameViewController's UIWindow instance (just a blank window). I'm not sure how to make it load the Navigation Controller's view rather than its own window? Also, another quick question. When I load the second navigation controller from the first, which makes more sense to use: [self.view addSubview:gameViewController.view]; or [self presentModalViewController:gameViewController animated:YES]; Thanks for any help, much appreciated :D Michael

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  • how to forward message from UITabBarController to another controller?

    - by RAGOpoR
    it cause from i insert UIViewController to subview of UITabBarController. once i want to set UIViewController shouldAutorotateToInterfaceOrientation and it not possible because it will call only in UITabBarController. how can i forward message from UITabBarController to call shouldAutorotateToInterfaceOrientation of each UIViewController instead of call UITabBarController only?

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  • Incompatible type in assignment

    - by coure06
    Getting error: Incompatible type in assignment at fValue = ..., see the code static float t = 0; float d = .5; static float fValue = 0; fValue = [self easeOutBounce:t andB:0 andC:30 andD:d]; here is the method -(float) easeOutBounce:(float)t andB:(float)b andC:(float)c andD:(float)d { if ((t/=d) < (1/2.75)) { return c*(7.5625*t*t) + b; } else if (t < (2/2.75)) { return c*(7.5625*(t-=(1.5/2.75))t + .75) + b; } else if (t < (2.5/2.75)) { return c(7.5625*(t-=(2.25/2.75))t + .9375) + b; } else { return c(7.5625*(t-=(2.625/2.75))*t + .984375) + b; } }

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  • How can i call NStimer form one viewcontroller from unother viewcontroller?

    - by Bala
    At first time i call the timer like this in Third viewcontroller timer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(targetMethod) userInfo:nil repeats:NO]; Then timer called the targetMethod -(void)targetMethod { First * sVC = [[First alloc] initWithNibName:@"First" bundle:[NSBundle mainBundle]]; [self presentModalViewController:sVC animated:YES]; [sVC release]; [timer invalidate]; } First viewcontroller opened.. In First viewcontroller had one button.In button action i wrote (IBAction) Action:(id)sender { [self dismissModalViewControllerAnimated:YES]; Third *BVC=[[Third alloc]init]; [Bvc TimerStart]; Timestart is function i start timer in this function.. i want to call Third viewcontroller timer function this place } timer started..But view didn't open (first )viewcontroller....... Please help me......

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