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  • Android Color Picker

    - by GuyNoir
    Does anyone know of a quick color picker widget that I could grab to use in my application? I've seen one in a few different applications that has a wheel with colors, and that you tap in the center to select, but I'm not sure where to find it. Google brings up nothing. Any color picker would be fine though. Thanks.

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  • Converting NSMutableData to NSString Problem

    - by Sheehan Alam
    initWithData does not convert my data object into a string properly. When I check the length of the data object, it has a value. NSMutableData* receivedData =[[NSMutableData data] retain]; NSString* json_string = [[NSString alloc] initWithData:receivedData encoding:NSUTF8StringEncoding]; Am I doing something wrong creating the string?

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  • NSURLConnection still calls delegate AFTER cancel method has been called

    - by Shizam
    Hi All, Having a problem with NSURLConnection, if I create a NSURLConnection and call [connection connectionWithRequest] let it load a little then call [connection cancel] most of the time that works fine. However occasionally even after I call [connection cancel] the connection's delegate still gets called (which crashes the app). Googling around it looks like the problem here is a race condition in the runloop, I cancel the connection and release the delegate but before the runloop cycles it calls the delegate functions - crash. Is there a way for me to, after I call [connection cancel] confirm the connection has actually canceled? Even a crappy while() loop will do :(

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  • Image "moves" when varying heightForRowAtIndexPath in UITableViewCell.

    - by Kalle
    I have a table view with varying height, as defined in the heightForRowAtIndexPath. For some very odd reason, the image is "indented" to the right based on the height; if the height is low enough, the image is stuck to the left side of the cell, but as the height increases, the image for said cell is shifted rightward compared to other rows. The result of this is a very poor looking list, with images floppily laid out in a zig-zag pattern depending on the height of each individual row. The problem is revealed by this simple example: - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath { return (indexPath.row+1) * 50; } Each cell is set up (simplified) as a "Subtitle" style cell with: // ... cell.textLabel.text = @"foo"; cell.detailTextLabel.text = @"bar"; cell.imageView.backgroundColor = [UIColor redColor]; // for debugging; i have images with transparent bg cell.imageView.image = anImageThatIs55x50pixelsBig; return cell; Any ideas? My head bleeds from the wall-love-affair. Edit: uploaded a screen which displays this. The "image" is just a screenshot of a tiny area of the screen which makes it look a little weird, but you get the picture I'm sure: http://img28.imageshack.us/img28/549/screenshot20100311at172.png

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  • UINavigationController from UIViewController

    - by 4thSpace
    I currently have this workflow in a tab based app: Tab1 loads... ViewOne : UIViewController >> PickerView : UIViewController >> DetailView : UIViewController "" means loads based on user action. I'd like navigation bars on PickerView and DetailView. PickerView just needs a cancel button in the top left of its nav bar. DetailView needs the normal navbar back button. I already have PickerView's nav bar wired up through IB and working. I'm not sure what to do with PickerView's nav bar. PickerView is also loaded from Tab2, who's main view starts as a UINavigationController. PickerView's nav bar works fine in that case. ViewOne should not have a navigation bar. Any ideas?

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  • iPhone offline reading

    - by Andy
    Hi, first of all - I am quite new to iPhone App development (3 months). I am working for a software company that offers a content management system. Our customers are for the main part publishing houses for magazines. They use our software to write articles to their homepages. Now we want to offer iPhone Applications to go with our cms. What I have accomplished so far is an RSS reader that shows newly published articles in a list view. The user selects one article and is redirected to a specially formatted detail view of this article. The next step is to add offline reading capabilities. I have searched the internet up and down but couldn't find anything like a best practice for that. I get it that there are two possibilities in general: Store the contents of the uiwebview locally on the iPhone/iPad (including css, images, js and so on). There would be the need to rework the basic html to use the downloaded css, images and js. Also I would have to somehow edit hyperlinks to following pages in multipage articles - Sounds like a lot of work ;) Create a PDF on the server side and download that to the mobile device. Rework the RSS Source to point to the locally saved pdf instead of the website on the server. My question is - what is the better way to go? Are there any downsides for either of the possibilities? Are there other (simple ;)) ways to implement offline reading features? Are there possibly any howto's that I could've missed? Thanks y'all!

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  • The accossoryView of a UITableViewCell disappears after the visible view is changed

    - by Luca
    Hi! I'm experiencing this strange situation. I have a UITableView where, when the user selects a cell, a long (network) process begins. So, I performed this in a background thread and I placed (in the didSelectRowAtIndexPath) a UIActivityIndicatorView as the accessory view. This is what I wrote: UITableViewCell* cell = [self.tableView cellForRowAtIndexPath:indexPath]; UIActivityIndicatorView* activityView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhite]; cell.accessoryView = activityView; [activityView startAnimating]; [activityView release]; everything seems to work correctly, except that, if during a loading process (when the indicator is animated), I switch the view using a UITabBar, when I go back to the UITableView, the UIActivityIndicatorView that should still be there has disappeared. Any idea of what I did wrong? Thanks!

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  • Right to Left UI in iPhone (Hebrew)

    - by Reflog
    Hello, I'm struggling in creating a RTL UI in iPhone application. The framework doesn't seem to have any support for RTL languages. The only thing is the alignment inside labels, which is nice, but it conflicts with other controls behaviour. The question is: Is there a working code for a RTL TableView? Something that would handle the disclosure buttons to be on the left, section titles to be right aligned, index view to be left aligned? As far as I understand I cannot move the index view of the tableview, i have to overlay some custom control... Any suggestions/pointers/examples? p.s. this is not a duplication of this question: http://stackoverflow.com/questions/1677988/right-to-left-alignment-for-uitableview since what I am looking for is a deeper customization, not just a new type of CellView. (Update: Mar 10) For now - I've removed support for indexView from the tableView at all, implemented the cells as custom views by myself (with disclosure buttons on the left), and customized the header/footer of the table as well. the only thing that is left is the Index View. Thanks in advance!

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  • iPhone: Get indexPath of Predicate Object

    - by Nic Hubbard
    I am using a predicate to find an object in core data. I can successfully find the object that I want, but I need to also get the indexPath of that object, so that I can push a details view in for that object. Currently I have the following code for getting my object: NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init]; [fetchRequest setEntity:[NSEntityDescription entityForName:@"Ride" inManagedObjectContext:self.managedObjectContext]]; NSPredicate *predicate = [NSPredicate predicateWithFormat:@"title = %@ AND addressFull = %@", view.annotation.title, view.annotation.subtitle]; [fetchRequest setPredicate:predicate]; NSMutableArray *sortDescriptors = [NSMutableArray array]; [sortDescriptors addObject:[[[NSSortDescriptor alloc] initWithKey:@"title" ascending:YES] autorelease]]; [sortDescriptors addObject:[[[NSSortDescriptor alloc] initWithKey:@"addressFull" ascending:YES] autorelease]]; [fetchRequest setSortDescriptors:sortDescriptors]; [fetchRequest setReturnsObjectsAsFaults:NO]; [fetchRequest setPropertiesToFetch:[NSArray arrayWithObjects:@"title", @"addressFull", nil]]; NSError *error = nil; NSArray *fetchedItems = [self.managedObjectContext executeFetchRequest:fetchRequest error:&error]; // Sohow what record we returned NSLog(@"%@",[fetchedItems objectAtIndex:0]); So, I can correctly get my object into an array. But how do I translate that object into an indexPath?

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  • AVAudioRecorder Won't Record On Device

    - by Dyldo42
    This is my method: -(void) playOrRecord:(UIButton *)sender { if (playBool == YES) { NSError *error = nil; NSString *filePath = [[NSBundle mainBundle] pathForResource:[NSString stringWithFormat: @"%d", [sender tag]] ofType:@"caf"]; NSURL *fileUrl = [NSURL fileURLWithPath:filePath]; AVAudioPlayer *player = [[AVAudioPlayer alloc] initWithContentsOfURL:fileUrl error:&error]; [player setNumberOfLoops:0]; [player play]; } else if (playBool == NO) { if ([recorder isRecording]) { [recorder stop]; [nowRecording setImage:[UIImage imageNamed:@"NormalNormal.png"] forState:UIControlStateNormal]; [nowRecording setImage:[UIImage imageNamed:@"NormalSelected.png"] forState:UIControlStateSelected]; } if (nowRecording == sender) { nowRecording = nil; return; } nowRecording = sender; NSError *error = nil; NSString *filePath = [[NSBundle mainBundle] pathForResource:[NSString stringWithFormat: @"%d", [sender tag]] ofType:@"caf"]; NSURL *fileUrl = [NSURL fileURLWithPath:filePath]; [sender setImage:[UIImage imageNamed:@"RecordingNormal.png"] forState:UIControlStateNormal]; [sender setImage:[UIImage imageNamed:@"RecordingSelected.png"] forState:UIControlStateSelected]; recorder = [[AVAudioRecorder alloc] initWithURL:fileUrl settings:recordSettings error:&error]; [recorder record]; } } Most of it is self explanatory; playBool is a BOOL that is YES when it is in play mode. Everything works in the simulator however, when I run it on a device, [recorder record] returns NO. Does anyone have a clue as to why this is happening?

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  • CGPath and Quartz 2D

    - by iphonedevnoob
    I want to create a triangle using Quartz 2D functions. The 3 edges of the triangle should be in different colors. I am able to create the triangle but not able to set the color of each edge or subpath separately. Any suggestions or sample code are much appreciated.

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  • 'NSInvalidArgumentException' UIButton IBAction Error

    - by Graeme
    Hi, I have a button in a view which refuses to work. I've got in working in a blank, default view application from X-Code, but in none of my applications will it work, instead it gives me the following error. Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '* -[UIViewController showVicInfo:]: unrecognized selector sent to instance 0x3c084f0' The debugger isn't any help either. I've made sure that I hook up the button to the file's owner (not the other way around) as well. Below is the code for the action. And I know it's not the alert view, because the breakpoint doesn't even reach there. about.h @interface about : UIViewController { } -(IBAction)showInfo:(id)sender; about.m -(IBAction)showVicInfo:(id)sender { UIAlertView *myAlert = [[UIAlertView alloc] initWithTitle:@"No Internet Connection" message:@"You require an internet connection via WiFi or cellular network for iFirelert to work." delegate:self cancelButtonTitle:@"OK, thanks" otherButtonTitles:nil]; [myAlert show]; [myAlert release]; }

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  • IPad App Issue - Webview

    - by Manoj Khaylia
    Hi all I developing a Ipad application I am trying to use Webview but not able to open the URL in webview I am using following code NSURL *fileURL = [[[NSURL alloc] initWithString:@"http://www.google.com/"] autorelease]; NSURLRequest *requestObj = [NSURLRequest requestWithURL:fileURL]; [webview loadRequest:requestObj]; this code working well for Iphone app not not working for Ipad app. Is anything wrong. Thanks Amit Battan

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  • UITableView titleForHeaderInSection prints headers to console twice then crashes

    - by joec
    In the method below titleForHeaderInSection, for some reason the NSLog prints out the headers twice and then the app crashes in objc_msgSend. I can't understand why this would cause the app to crash? It would seem from research that crashes in objc_msgSend are caused by sending messages to already freed objects, but is that the case here? My sectionNames array is populated in viewDidLoad. - (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section { NSString *title = nil; title=[sectionNames objectAtIndex:section]; NSLog(title); return title; } Thanks

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  • Numeric keyboard dismiss???

    - by shishir.bobby
    HI all, I am having a 2 textFeild and 1 textview. out of 2 textfeild,one textfield requires number to be filled in there. so for that i hv provided numeric keyboard. i m not able to dismiss numeric keyboard,since i cant c any option to hit the numeric keyboard dismiss. is it possible to dismiss numeric keyboard ?? if yes than can anyone guide me through. regards shishir

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  • wait for CLLocationManager to finish before tweeting

    - by user295944
    I want to wait for latitude.text and longtitude.text to be filled in before sending a tweet, this code works fine, but I would rather not put the tweeting part in locationManager because I also want to sometimes update the current location without sending a tweet. How can I make sure the txt gets filled in before sending the tweet without doing this? - (IBAction)update { latitude.text =@""; longitude.text =@""; locmanager = [[CLLocationManager alloc] init]; [locmanager setDelegate:self]; [locmanager setDesiredAccuracy:kCLLocationAccuracyBest]; [locmanager startUpdatingLocation]; } - (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation { CLLocationCoordinate2D location = [newLocation coordinate]; latitude.text = [NSString stringWithFormat: @"%f", location.latitude]; longitude.text = [NSString stringWithFormat: @"%f", location.longitude]; TwitterRequest * t = [[TwitterRequest alloc] init]; t.username = @"****"; t.password = @"****"; [twitterMessageText resignFirstResponder]; loadingActionSheet = [[UIActionSheet alloc] initWithTitle:@"Posting To Twitter..." delegate:nil cancelButtonTitle:nil destructiveButtonTitle:nil otherButtonTitles:nil]; [loadingActionSheet showInView:self.view]; [t statuses_update:twitterMessageText.text andLat:latitude.text andLong:longitude.text delegate:self requestSelector:@selector(status_updateCallback:)]; twitterMessageText.text=@""; }

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  • UITextView insert text in the textview text

    - by John Smith
    I want to have to occasionally insert text into the UITextView text object. For example, if the user presses the "New Paragraph" button I would like to insert a double newline instead of just the standard single newline. How can I go about such? Do i have to read the string from UITextView, mutate it, and write it back? Then how would I know where the pointer was? Thanks

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  • Iphone-exif 0.91 not working when I add it to my project, gives error ".objc_class_name_EXFJpeg", r

    - by user295944
    When I add libiphone-exif.a to snapandrun in objectiveflickr I get this error: ".objc_class_name_EXFJpeg", referenced from: literal-pointer@__OBJC@__cls_refs@EXFJpeg in SnapAndRunViewController.o ld: symbol(s) not found collect2: ld returned 1 exit status I do not know what this means, I follow the guide to add it, add all of the .h files and the libiphone-exif.a Is there something special I have to do?

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  • Cocos2D: Problem Rotating a CCMenu

    - by srikanth rongali
    If I try to do actions over menuItems but the actions are not running as expected. I think code below should make the menuItem rotate by 90 degrees but when I run it, the menuItem translates from its coordinates to another coordinate then returns to its original coordinate. The complete translation takes 3 seconds. What I need is for the menuItem to rotate by 90 degrees in place within a 3 seconds duration. Please explain where I have done wrong? CCMenuItemImage *targetE;//Globally declared CCMenu *menu;//Globally declared -(id)init { if( (self = [super init]) ) { isTouchEnabled = YES; CGSize windowSize = [[CCDirector sharedDirector] winSize]; targetE = [CCMenuItemImage itemFromNormalImage:@"grossinis_sister1.png" selectedImage:@"grossinis_sister1.png" target:self selector:@selector(touch:)]; menu = [CCMenu menuWithItems:targetE,nil]; id action4 = [CCRotateBy actionWithDuration:3.0 angle:90]; [menu runAction: [CCSequence actions: action4, nil]]; menu.position = ccp(windowSize.width/2 + 200, windowSize.height/2); [self addChild: menu z:10]; } return self; } @end Thank You.

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  • Need help with animation on iPhone

    - by Arun Ravindran
    I'm working on an animated clock application for the iPhone, and I have to pivot all the 3 nodes in the view, which I have obtained in the following code: [CATransaction begin]; [CATransaction setValue:(id)kCFBooleanTrue forKey:kCATransactionDisableActions]; clockarm.layer.anchorPoint = CGPointMake(0.0, 0.0); [CATransaction commit]; [CATransaction begin]; [CATransaction setValue:(id)kCFBooleanFalse forKey:kCATransactionDisableActions]; [CATransaction setValue:[NSNumber numberWithFloat:50.0] forKey:kCATransactionAnimationDuration]; CABasicAnimation *animation; animation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"]; animation.fromValue = [NSNumber numberWithFloat:-60.0]; animation.toValue = [NSNumber numberWithFloat:2 * M_PI]; animation.timingFunction = [CAMediaTimingFunction functionWithName: kCAMediaTimingFunctionLinear]; animation.delegate = self; [clockarm.layer addAnimation:animation forKey:@"rotationAnimation"]; animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]; [CATransaction commit]; The problem it's just rotating once, ie. only 360 degree and then stopping. I want to raotate the needles indefinitely. How would I do that?

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