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  • Word on HTML document point, using UIWebView, DOM and Javascript

    - by leolobato
    Hey guys, How can I figure out which word is at the point where the user tapped on a UIWebView? I am able to detect the CGPoint for the tap (subclassing UIWindow like this), and I can actually get the DOM element on that point using javascript. But I know very little of javascript and DOM to figure out how can I actually get which word the user tapped on. Is that possible? Here's what I have right now: int scrollPosition = [[webView stringByEvaluatingJavaScriptFromString:@"window.pageYOffset"] intValue]; NSString *js = [NSString stringWithFormat:@"document.elementFromPoint(%f, %f).tagName", point.x, point.y+scrollPosition]; NSString *value = [webView stringByEvaluatingJavaScriptFromString:js]; NSLog(@"element: %@", value);

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  • delete last character UITextField

    - by Pierre
    Hi ! I have an UITextField and I just would like that every tap on a character, the first character is deleted. So just have one character in my textField every time. Moreover I would to to display every tap in the console log. Have you got an idea? Thanks!

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  • How can i call UItimer 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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  • Format number as I type Expand this post

    - by conorhiggins
    Hi I am working on an app at the moment that requires number input to be formatted as the textfield changes as well as perform a calculation. I have the text fields set up so that as the user types notifications are passed out and a calculation is performed. However what I need to do now is format the text to be in this style: €1,000,000 rather than 1000000. I have this working for the output of the calculation already but everytime I try to apply it to the input text the simulator seems to crash or at least freezes for a while. I'd imagine its a simple enough fix.

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  • Why doesn't IB see my IBAction?

    - by Dan Ray
    I've been staring at this for way too long. There's nothing fancy happening here, and I've done this dozens of times, yet Interface Builder steadfastly refuses to provide me an action target for -(IBAction)slideDirections. I'm at the point where I'm willing to post publicly and feel stupid. So let 'er rip. Here's my .h: #import <UIKit/UIKit.h> #import <MapKit/MapKit.h> @interface PulseDetailController : UIViewController { NSDictionary *pulse; IBOutlet MKMapView *map; IBOutlet UIWebView *directions; IBOutlet UIView *directionsSlider; BOOL directionsExtended; IBOutlet UILabel *vendor; IBOutlet UILabel *offer; IBOutlet UILabel *offerText; IBOutlet UILabel *hours; IBOutlet UILabel *minutes; IBOutlet UILabel *seconds; IBOutlet UILabel *distance } @property (nonatomic, retain) NSDictionary *pulse; @property (nonatomic, retain) MKMapView *map; @property (nonatomic, retain) UIWebView *directions; @property (nonatomic, retain) UIView *directionsSlider; @property (nonatomic) BOOL directionsExtended; @property (nonatomic, retain) UILabel *vendor; @property (nonatomic, retain) UILabel *offer; @property (nonatomic, retain) UILabel *offerText; @property (nonatomic, retain) UILabel *hours; @property (nonatomic, retain) UILabel *minutes; @property (nonatomic, retain) UILabel *seconds; @property (nonatomic, retain) UILabel *distance; -(IBAction)slideDirections; @end

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  • How to upload contents of a file to a UITextView?

    - by Mike Rychev
    Hello! I have about twenty UITextViews and corresponding .txt files. What I want is to make each UITextView take the contents of the corresponding file and display it. Moreover, the text is formatted and it contains some formulas (copy/pasted from Grapher). I've heard about displaying formatted text in UIWebView, but I haven't found a clear explanation anywhere. Thanks in advance!

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  • UIButton to be resized

    - by Sathiya
    I am using a UIButton in my application. This button title is displayed dynamically as per the user choice. Now i have to resize the button width as per the title content. I am calculating the string length and assigning it to button's width. the button is resized as per title but the problem is as follows, 1. If at first the title with large content is shown and after that if a title with a small content is shown means the button is overwritten it doesn't remove the previously constructed value. 2. it looks as if one button is overlapped on the another.

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  • How do I hide the text on a label in Obj-C?

    - by dbonneville
    I'm using label of a button to send a value into a function. However, I want the button to be invisible. I have the background color turned of in IB, and the text color is also set to nothing, but the text still shows up on the button. Is there another way to have a clear button that sends a value when it's clicked? If I could just turn off / hide the text on the stock UIButton that would be perfect... Thanks, Doug

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  • CAAnimation rotation did not give last stage?

    - by Mikhail Naimy
    hi, i am using following code to rotate the UIView through Swipe gesture .it works fine.but after rotation, it goes to beginning angle or Fromvalue.anyone can help to stop the view in last stage.if i rotate again, it must go from last stage. rotationAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"]; rotationAnimation.fromValue = [NSNumber numberWithFloat:0.0 * M_PI]; rotationAnimation.toValue = [NSNumber numberWithFloat:0.5 * M_PI]; //rotationAnimation.toValue = [NSNumber numberWithFloat: 2.5 * 3.15 ]; rotationAnimation.duration = 1.5; //rotationAnimation.cumulative = YES; rotationAnimation.removedOnCompletion = NO; rotationAnimation.repeatCount = 0.0; rotationAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear]; [self.view.layer addAnimation:rotationAnimation forKey:@"rotationAnimate"];

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  • MPMoviePlayerController switching movies causes white flash

    - by bennythemink
    Hi guys, I have a small UIView that displays a repeated movie. When the user taps a button another movie is loaded and displayed in the same UIView. The problem is that there is a half second "flash" between the removing of the first movie and the displaying of the second. Is there any to remove this? <code> - (void) setUpMovie:(NSString*)title { NSString *url = [[NSBundle mainBundle] pathForResource:title ofType:@"mp4"]; MPMoviePlayerController *player = [[MPMoviePlayerController alloc] initWithContentURL:[NSURL fileURLWithPath:url]]; [[player view] setFrame:self.movieView.bounds]; [self.movieView addSubview:player.view]; if ([title isEqualToString:@"Bo_idle_02"]) { [player setRepeatMode:MPMovieRepeatModeOne]; } else { [player setRepeatMode:MPMovieRepeatModeNone]; } [player setControlStyle:MPMovieControlStyleNone]; [player play]; } - (void) startDanceAnimation { [self setUpMovie:@"Bo_dance_02"]; return; } </code>

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  • Puzzled with nib files...

    - by Michael
    I know nib files are serialized objects and they have owner, outlets to make connections. Using XCode Navigation window template I created application, which in its order created 2 nib files - MainWindow and SecondView. I can't understand how MainWindow is referring to SecondView, there is no connection between those two as far as I can see. SecondView's owner is UIViewController and in MainWindow there is a navigation tab which is also UIViewController. But how they are connected in IB I can't understand... Also I don't understand who is instanciating MainWindow's owner object and where that object is being kept, where is the variable which is UIApplication myApp = [[UIApplication alloc] init]. If I create 10 nib files with UIViewController owner, who will trigger their deserialization? If some class is nib file's owner, what is the essential responsibilities of that class? Is it deserializing nib file into memory? Sorry for unorganized questions, I've been reading numerous articles and docs about nib files, but it is still confusing.

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  • How can I change UIButton title color?

    - by HelloWorld
    I create a button programmatically button = [UIButton buttonWithType:UIButtonTypeRoundedRect]; [button addTarget:self action:@selector(aMethod:) forControlEvents:UIControlEventTouchDown]; [button setTitle:@"Show View" forState:UIControlStateNormal]; button.frame = CGRectMake(80.0, 210.0, 160.0, 40.0); [view addSubview:button]; how can I change title color?

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  • button item lost when hide and unhide toolbar

    - by RAGOpoR
    i dont know, why the button are disappear after the toolbar set to hide and unhide. how can i fix it? and i setup my button at this method -(void)viewDidAppear:(BOOL)animated this code use for hide toolbar [self.navigationController setNavigationBarHidden:YES animated:YES]; [[UIApplication sharedApplication] setStatusBarHidden:YES animated:YES]; [self.navigationController setToolbarHidden:YES animated:YES];

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  • CenterPoint in CGContextAddArc ?

    - by Mikhail Naimy
    Hi , i am drawing Arc through CGCOntext.I want to draw a string in the center Point of Arc.how can i fond the center point in the Arc which has been drawn through CGContext. CGContextSetAlpha(ctx, 0.5); CGContextSetRGBFillColor(ctx, color.red, color.green, color.blue, color.alpha ); CGContextMoveToPoint(ctx, cX, cY); CGContextAddArc(ctx, cX, cY, radious+10, (startDeg-90)*M_PI/180.0, (endDeg-90)*M_PI/180.0, 0); CGContextClosePath(ctx); CGContextFillPath(ctx);

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  • -(void)dealloc - How ? Objective - C

    - by sagar
    Please Note that - this is not similar than this question. OK. To understand my question, First of all please see both of these destructors. - (void)dealloc { [Marketdetails release]; Marketdetails=nil; [parsedarray release]; parsedarray=nil; [Marketid release]; Marketid=nil; [marketname release]; marketname=nil; [super dealloc]; } - (void)dealloc { [super dealloc]; [Marketdetails release]; Marketdetails=nil; [parsedarray release]; parsedarray=nil; [Marketid release]; Marketid=nil; [marketname release]; marketname=nil; } See, Both destructors have different code. In First Destructor first current class objects are released & then [super dealloc] is called. In second Desctructor first [super dealloc] is called. My question is as follows. Where should we write [super dealloc] ? first or last ? or it doesn't matter ?

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  • Enable UIBarButtonItem if multiple UITextFields are all populated

    - by CrystalSkull
    I have 3 UITextFields in a grouped UITableView and am trying to figure out the correct logic to only have my 'Save' UIBarButtonItem enabled when none of the UITextFields are empty. I'm currently using the - (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string UITextField delegate method to detect changes to the field character by character, but it is providing inconsistent results. Any ideas?

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  • Change Sprite Anchorpoint without moving it?

    - by OscarMk
    Hello, I am trying to change my Sprite anchor point so that I can rotate over a 0.0f,0.0f anchorpoint. At first my object is rotation at the default anchor point (0.5f,0.5f). However later on I need it to rotate over a 0.0,0.0 AnchorPoint. The problem is I cannot change the anchor point and change the position accordingly, so it stays on the same position, without the object appearing to quickly move and reposition to its original point. Is there a way I can set the anchor point and the position of my Sprite at once, without it moving at all?. Thank you. -Oscar

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  • UITableView becomes invisible after changing data in it

    - by Alexander Shemshurenko
    Hi I have application with TabBar that control several views. In one view i control connection to different servers.Each server provides different set of items. I display these items in UITableView on other view. I create table view like this UITableView * aTableView = [[UITableView alloc] initWithFrame:CGRectMake(X,Y,Width,Height) style:UITableViewStyleGrouped]; [[self view] addSubview:aTableView]; aTableView.da taSource = self; The problem is that Table view displayed ok first time , but if i go back to view number one and change server(changing list of items that should be displayed in table view), table view becomes invisible for some reason. If i tap on the screen in place where it should be, its becomes visible again. Ive tried to call to reloadData and setNeedDisplay in viewWillAppear of the UIViewController that hosts this table view, but without success. Any advice? Thanks

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  • Email from an app, but not use a a pop up controller, just text inside a text box.

    - by Sam Jarman
    Hey is there any way to send whats in a text view (im trying to make a suggestion box) to my email address? example user types in the box " I think you should add twitter support" then that is sent in the background to my email address [email protected] then a message is popped up on the screen saying "suggestion sent" just an example of what i mean Any ideas, tutorial links would be greatly appreciated guys Thanks

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  • UIImagePickerController random behavior

    - by pion
    I have the following code snippets: @interface PinRecordNewTableViewController : UITableViewController { } ... @implementation PinRecordNewTableViewController ... - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { ... PinRecordNewPicture *pinRecordNewPicture = [[PinRecordNewPicture alloc] initWithNibName:@"PinRecordNewPicture" bundle:nil]; pinRecordNewPicture.delegate = self; [self.navigationController pushViewController:pinRecordNewPicture animated:YES]; [pinRecordNewPicture release]; ... } @interface PinRecordNewPicture : UIViewController ... @implementation PinRecordNewPicture ... - (void)picturePicker:(UIImagePickerControllerSourceType)theSource { UIImagePickerController *picker = [[UIImagePickerController alloc] init]; picker.delegate = self; picker.sourceType = theSource; picker.allowsEditing = YES; [self presentModalViewController:picker animated:YES]; [picker release]; } - (IBAction) takePicture:(id)sender { UIImagePickerControllerSourceType source = UIImagePickerControllerSourceTypeCamera; if ([UIImagePickerController isSourceTypeAvailable:source]) { [self picturePicker:source]; } It works 80% of the time -- I could get the picture correctly. The problem is that it occasionally failed to take a picture. When tracing the code, I found out that it occasionally goes to -PinRecordNewTableViewController:viewDidUnload. This is where it fails because it set nil to all ivars. What did I do wrong? Did I miss something so it behaves "randomly"? Thanks in advance for your help.

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  • Simple sound effect loop using AudioToolKit

    - by Typeoneerror
    I've created a few sounds for use in my game. I can play them at certain events without issue: // create sounds CFBundleRef mainBundle; mainBundle = CFBundleGetMainBundle(); _soundFileShake = CFBundleCopyResourceURL(mainBundle, CFSTR("shake"), CFSTR("wav"), NULL); AudioServicesCreateSystemSoundID(_soundFileShake, &_soundIdShake); // later... AudioServicesPlaySystemSound(_soundIdShake); The game has a mechanism which allows you to shake the device to activate some functionality. I've got the shaking code done so I get get a "shaking started" and "shaking ended" message to my game. What I need to have happen is start playing "shave.wav" when shaking starts and loop it until it stops. Is there a way to do this with AudioToolbox/AudioServices? How could I do this if not?

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