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• Errors in UILabel

  - by Todd Davies

  I'm trying to use the FXlabel when following this (Adding a gradient label section) tutorial. This is some of the code inside my viewDidLoad method: self.logoLabel = [[FXLabel alloc] initWithFrame:CGRectMake(14, 11, 280, 87)]; [logoLabel setFont:[UIFont boldSystemFontOfSize:45]]; [logoLabel setTextColor:[UIColor whiteColor]]; [logoLabel setShadowColor:[UIColor blackColor]]; [logoLabel setShadowOffset:CGSizeMake(0, 2)]; [logoLabel setTextAlignment:UITextAlignmentCenter]; [logoLabel setBackgroundColor:[UIColor clearColor]]; [logoLabel setText:@"Attorney Biz"]; [logoLabel setGradientStartColor:[UIColor colorWithRed:163.0/255 green:203.0/255 blue:222.0/255 alpha:1.0]]; [logoLabel setGradientEndColor:[UIColor whiteColor]]; Unfortnuately, I get an error "No visible @interface for 'UILabel' declares the selector 'setGradientStartColor'" at the second-to-last line and "No visible @interface for 'UILabel' declares the selector 'setGradientEndColor'" Can somebody explain how to remove these errors?

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• How to avoid truncation of text with UITableViewCellStyleValue2

  - by Regan

  I use this code to make my UITableViewCells cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue2 reuseIdentifier:CellIdentifier] autorelease]; If you're unfamiliar with UITableViewCellStyleValue2, the main text is shown, and then the detail text is shown after it, generally in a different color. However, when I do this, my main text is truncated, if it is longer than a short word. I want to force it to not truncate the main text and show the entire main text, and then the detail text after it. How can I do that?

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• How to upload a file with JQueryMobile for an iphone/ipad?

  - by JD

  Hi, I have just started looking at JqueryMobile and want to know if the following is possible? I want to be able to select a file (similar to in html) and then show some sort of dialogue that allows me to browse to a "folder" and select the file. It would then be up to me to send some sort of AJAX command to upload it to the server (where I am using Asp.net MVC 2) Since I do not have access to an iPhone or iPad, I was told that I would only have access to the documents folder. JD

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• Sending custom app logs to developer

  - by Templar

  I'm planning to release a new app in the future. I have a custom logging function which logs some application data (not crashes) into a file (location manager state, app foreground-background transitions, main actions...). These logs helped me a lot to debug problems which were app-related, but not causing a crash. Until now these were in the documents directory (shared in iTunes) and the testers sent them to me after they saw some incorrect behaviors, however I don't want to share them anymore because this directory contains the app's database too. I'd like to obtain these logs even when the app will be on App Store, but I don't know how this should be done. As I wrote, it is a new app and even after the test phase may exist minor bugs. I know that the users can report problems in iTunes or on the Dev site, but without a detailed scenario or log it is really hard to correct a bug. Should I make some kind of in-app bug report functionality (even if this creates a wrong user impression) ? How is this usually handled ? Thanks

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• How to link more than one object at a time in Xcode 4.2?

  - by Beppe

  I'm probably missing the basics here... Is there a way to link more than one object to a method at a time using Interface Builder in Xcode 4.2? I set tons of UIButtons in my UIView. All of them call just one method (let's say - (IBAction)buttonPushed:(UIButton *)aButton) that should do something different depending on the sender. I can't figure out a way to link them all with my method at a time. Any advice will be very appreciated... N.B. I'm using Xcode 4.2 on Snow Leopard, without storyboard.

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• Search pattern in string using regex in obj-c

  - by manileo86

  I'm working on a string pattern match algorithm. I use NSRegularExpression for finding the matches. For ex: I've to find all words starting with '#' in a string.. Currently I use the following regex function: static NSRegularExpression *_searchTagRegularExpression; static inline NSRegularExpression * SearchTagRegularExpression() { if (!_searchTagRegularExpression) { _searchTagRegularExpression = [[NSRegularExpression alloc] initWithPattern:@"(?<!\\w)#([\\w\\._-]+)? options:NSRegularExpressionCaseInsensitive error:nil]; } return _searchTagRegularExpression; } and I use it as below: NSRegularExpression *regexp = SearchTagRegularExpression(); [regexp enumerateMatchesInString:searchString options:0 range:stringRange usingBlock:^(NSTextCheckingResult *result, NSMatchingFlags flags, BOOL *stop) { // comes here for every match with range }]; This works properly. But i just want to know if this is the best way. suggest if there's any better alternative...

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• Presenting an EKCalendarChooser modally

  - by pmb

  I'm trying to present the new EKCalendarChooser in my app as a modal view. I'm doing it using the following code: EKCalendarChooser *calendarChooser = [[EKCalendarChooser alloc] initWithSelectionStyle:EKCalendarChooserSelectionStyleMultiple displayStyle:EKCalendarChooserDisplayAllCalendars eventStore:self.ekDataSource.eventStore]; calendarChooser.showsDoneButton = YES; calendarChooser.showsCancelButton = NO; calendarChooser.modalTransitionStyle = UIModalTransitionStyleCoverVertical; calendarChooser.delegate = self; [[self navigationController] presentViewController:calendarChooser animated:YES completion:nil]; The problem I'm having is that when the view is displayed, it is missing the done button. If however, I display the view using the following code: [[self navigationController] pushViewController:calendarChooser animated:YES]; It works just fine. The done button is displayed. Shouldn't the done button be shown with the presentViewController call as well? Thanks in advance for any help! pmb

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• How to fix a slow scrolling table view

  - by hanumanDev

  I have a table view that's scrolling slowly. Does anyone know why that might be? There is an image for each row, but even after the images are loaded it still stutters and scrolls slowly. thanks for any help here's my code: - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *simpleTableIdentifier = @"SimpleTableCell"; SimpleTableCell *cell = (SimpleTableCell *)[tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier]; if (cell == nil) { NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"SimpleTableCell" owner:self options:nil]; cell = [nib objectAtIndex:0]; } // Get item from tableData NSDictionary *item = (NSDictionary *)[displayItems objectAtIndex:indexPath.row]; // display the youdeal deal image photoString = [item objectForKey:@"image"]; UIImage *image = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:photoString]]]; cell.titleLabel.text = [item objectForKey:@"supercat"]; cell.descriptionLabel.text = [item objectForKey:@"title"]; NSString *convertedLeftCount = [NSString stringWithFormat:@"%@",[item objectForKey:@"left_count"]]; cell.amountLabel.text = convertedLeftCount; cell.thumbnailImageView.image = image; cell.priceLabel.text = [item objectForKey:@"cat"]; return cell; }

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• Using NSArray for C-type int comparisons

  - by Andrew Barinov

  I would like to iterate through an NSArray of ints and compare each one to a specific int. All ints are C type ints. The code I am using is as follows: -(int)ladderCalc: (NSArray*)amounts: (int)amount { int result; for (NSUInteger i=0; i< [amounts count]; i++) { if (amount < [amounts objectAtIndex:i]); { // do something } // do something } } However I get an error when comparing the int amount to the result of [amounts objectAtIndex:i] because you cannot compare id to int. Why is the id involved in this case? Shouldn't objectAtIndex just return the object at the index specified? Is it possible to cast the object returned to an C int and then do the comparison? Or should I just dispense with NSArray and do this type of thing in C?

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• Accessing Amazon E-Commerce Services through Cocoa Touch

  - by Gregory Hill

  Has anyone successfully accessed AWS (Amazon E-Commerce Services) through Cocoa Touch? I've been digging around, and haven't seen the issue addressed directly. I've created an AWS account, and have seen some sample code for accessing web services through Cocoa, but I'm not quite sure how to tie it all together. If anyone has any sample code, I'd love to see it. I'm just trying to get my head around the concepts.

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• How can I get the Twitter following and follower Email id and MobileNo in the iPhone sdk Using MGTwitterEngine?

  - by user1808090

  I'm unable to get the Twitter following and Followers Email id and MobileNo i am using below code for that using below code i am able to get only Twitter following name and Id Please help? if([[NSUserDefaults standardUserDefaults] valueForKey:@"UseridLoop"]==nil) { urlString = [NSString stringWithFormat:@"https://api.twitter.com/1/friends/ids.json?cursor=-1&user_id=%@",[[NSUserDefaults standardUserDefaults] valueForKey:@"Userid"]]; } else { urlString = [NSString stringWithFormat:@"https://api.twitter.com/1/followers/ids.json?cursor=-1&user_id=%@",[[NSUserDefaults standardUserDefaults] valueForKey:@"UseridLoop"]]; } NSURLRequest *notificationRequest = [NSURLRequest requestWithURL:[NSURL URLWithString:urlString]]; NSHTTPURLResponse *response; NSError *error; NSData *responData; responData = [NSURLConnection sendSynchronousRequest:notificationRequest returningResponse:&response error:&error]; NSLog(@"%@",responData); NSString *dataString = [[NSString alloc] initWithData:responData encoding:NSUTF8StringEncoding]; // NSDictionary *dict = [[NSDictionary alloc] initWithDictionary:(NSDictionary *)[dataString JSONValue]]; // // NSMutableDictionary *globalCelebDict=[[NSMutableDictionary alloc]initWithDictionary:(NSMutableDictionary *)[dataString JSONValue ] ]; // //NSMutableDictionary *globalCelebDictNext=[[NSMutableDictionary alloc]initWithDictionary:(NSMutableDictionary *)[[ globalCelebDict objectForKey:@"GetGroupDetailsResult"] JSONValue]]; // NSLog(@"dict %@",dict); SBJSON *json = [[SBJSON alloc] init]; NSMutableDictionary *customDetailDict=[[NSMutableDictionary alloc]init]; customDetailDict=[json objectWithString:dataString error:&error]; // NSDictionary *customDetailDict = [json objectWithString:dataString error:&error]; NSLog(@"%@",customDetailDict); if (customDetailDict!=nil) { array=[[customDetailDict objectForKey:@"ids"]retain]; NSLog(@"%@",array); NSLog(@"%d",[array count]); [[NSUserDefaults standardUserDefaults]removeObjectForKey:@"UseridLoop"]; NSLog(@"%@",[[NSUserDefaults standardUserDefaults]valueForKey:@"UseridLoop"]); } }

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• Get the color of the TextView

  - by sairam333

  How we get the color of the text view in android(java)

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• data parameter is nil error when checking internet connectivity

  - by JSA986

  When launching my app it checks if user is subscribed. If it dosent detect an internet connection it crashes with the error: Failed to retrieve subscription with error 'The Internet connection appears to be offline.' and responseString: (null)*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'data parameter is nil' .m [self getPath:path parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) { if (![responseObject isKindOfClass:[NSDictionary class]]) { failureBlock(@"Invalid response received"); return; } NSDictionary *subscriptionDict = (NSDictionary *)responseObject; if (subscriptionDict[@"error"] == nil) { DebugLog(@"Successfully retrieved subscription"); successBlock(subscriptionDict); } else { failureBlock(responseObject); } } failure:^(AFHTTPRequestOperation *operation, NSError *error) { DebugLog(@"Failed to retrieve subscription with error '%@' and responseString: %@", error.localizedDescription, operation.responseString); id responseObject = [NSJSONSerialization JSONObjectWithData:operation.responseData options:0 error:nil]; failureBlock(responseObject); }]; }

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• Creating UIButton using helper method

  - by ddawber

  I have a subclass of UITableView and in it I want to generate number of labels that share the same properties (font, textColor, backgroundColor, etc.). I decided the easiest way to achieve this would be to create a helper method which creates the label with some common properties set: - (UILabel *)defaultLabelWithFrame:(CGRect)frame { UILabel *label = [[UILabel alloc] initWithFrame:frame]; label.font = [UIFont fontWithName:@"Helvetica" size:14]; label.textColor = [UIColor colorWithWhite:128.0/255.0 alpha:1.0]; label.backgroundColor = [UIColor clearColor]; return label; } I use the method like this: UILabel *someLabel = [self defaultLabelWithFrame:CGRectMake(0,0,100,100)]; [self addSubview:someLabel]; [someLabel release]; My concern here is that when creating the label in the method it is retained, but when I then assign it to someLabel, it is retained again and I have no way of releasing the memory when created in the method. What would be best the best approach here? I fee like I have two options: Create a subclass of UILabel for the default label type. Create an NSMutableArray called defaultLabels and store the labels in this: - (UILabel *)defaultLabelWithFrame:(CGRect)frame { UILabel *label = [[UILabel alloc] initWithFrame:frame]; label.font = [UIFont fontWithName:@"Helvetica" size:14]; label.textColor = [UIColor colorWithWhite:128.0/255.0 alpha:1.0]; label.backgroundColor = [UIColor clearColor]; [defaultLabels addObject:label]; [labels release]; //I can release here return [defaultLabels lastObject]; //I can release defaultLabels when done } I appreciate your thoughts. Cheers.

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• How to hadle a tags inside another tags in NSXMLParser

  - by SimpleMan

  I have a file: <xml> <component>something <system>somethingDeeper <value>somethingDeepest</value> </system> </component> <component>somethinfDifferent <value>somethingDifferentDeeper</value> </component> <value>somethingNew</value> </xml> So i want to distinguish what is inside another tag (ex. <system>) what is not. How to do this with NSXMLParser ? I currently use BOOL ivar's but this is a lot of tags and this is not as elegant as i want it to be. I know that NSXMLParser is a SAX parser and i understand that. In above example I will be enter to didEndElement method three times with: elementName equal value Is there a more elegant way to distinguish what entry was from <component> tag above what not?

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• Autorelease and properties

  - by ganuke

  I have few questions to ask about the following class #import <Cocoa/Cocoa.h> @interface SomeObject { NSString *title; } @property (retain) NSString *title; @end implementation SomeObject @synthesize title; -(id)init { if (self=[super init]) { self.title=[NSString stringWithFormat:@"allyouneed"]; } return self; } -(void)testMethod{ self.title=[[NSString alloc] init] ; } -(void)dealloc { self.title=nil; [super dealloc]; } In the .h file do we need to declare the title and sub when we add the property. is it not enough to add the @property (retain) NSString *title; line. 2.Do i need to autorelease both assignment to title in the init and testMethod. if So why? Can some one explain these things to me.

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• Attach GestureRecogniser to multiple imageviews

  - by AppleDeveloper

  Something strange I encountered today while attaching same gesture recogniser to multiple image views. It gets attached to only the last one, in other words, it can be attached to only one view! I had to create multiple gesture recognisers to meet my requirements. Following is what I have done. Am I doing correct? Is that's the only way to attach recognisers to the multiple imageviews? Please note that I don't want to use UITableView or UIVIew and put all imageviews in it and attach gesture recogniser to only UITableView or UIVIew. I have all image scattered and I have to detect which image is being dragged. Thanks. [imgView1 setUserInteractionEnabled:YES]; [imgView1 setMultipleTouchEnabled:YES]; [imgView2 setUserInteractionEnabled:YES]; [imgView2 setMultipleTouchEnabled:YES]; [imgView3 setUserInteractionEnabled:YES]; [imgView3 setMultipleTouchEnabled:YES]; [imgView4 setUserInteractionEnabled:YES]; [imgView4 setMultipleTouchEnabled:YES]; [imgView5 setUserInteractionEnabled:YES]; [imgView5 setMultipleTouchEnabled:YES]; [imgView6 setUserInteractionEnabled:YES]; [imgView6 setMultipleTouchEnabled:YES]; //Attach gesture recognizer to each imagviews gestureRecognizer1 = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(gestureHandler:)]; gestureRecognizer1.delegate = self; gestureRecognizer2 = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(gestureHandler:)]; gestureRecognizer2.delegate = self; gestureRecognizer3 = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(gestureHandler:)]; gestureRecognizer3.delegate = self; gestureRecognizer4 = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(gestureHandler:)]; gestureRecognizer4.delegate = self; gestureRecognizer5 = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(gestureHandler:)]; gestureRecognizer5.delegate = self; gestureRecognizer6 = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(gestureHandler:)]; gestureRecognizer6.delegate = self; [imgView1 addGestureRecognizer:gestureRecognizer1]; [imgView2 addGestureRecognizer:gestureRecognizer2]; [imgView3 addGestureRecognizer:gestureRecognizer3]; [imgView4 addGestureRecognizer:gestureRecognizer4]; [imgView5 addGestureRecognizer:gestureRecognizer5]; [imgView6 addGestureRecognizer:gestureRecognizer6];

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• adding filter to bluetooth discovery

  - by user1643325

  I want to just discover peripheral devices when i start my Bluetooth Device discovery, my app must not discover/show other devices. is this any how possible? this is how i am searching for devices IntentFilter filter = new IntentFilter("android.bluetooth.devicepicker.action.DEVICE_SELECTED"); registerReceiver(mBtPickReceiver,filter); startActivity(new Intent("android.bluetooth.devicepicker.action.LAUNCH") .putExtra("android.bluetooth.devicepicker.action.EXTRA_NEED_AUTH",false));

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• Affine Transforms with Demo App

  - by Dex

  I have a demo app here https://github.com/rdetert/image-transform-test After importing an image, you can pinch, zoom, rotate the image. What I want to do is save out a 640x480 image (landscape mode) that looks identical to the live preview. So if there are 100px bars of empty space on the sides, I need the same empty bars in the final output (scaled appropriately). This is proving to be more difficult than I thought it would be. I can't quite get it to come out right after days of working on it. The magic method that generates the final image is called -(void)generateFinalImage Good luck! ;)

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• Custom UITableViewCell from xib isn't displaying properly

  - by Kenny Wyland

  I've created custom UITableCells a bunch of times and I've never run into this problem, so I'm hoping you can help me find the thing I've missed or messed up. When I run my app, the cells in my table view appear to be standard cells with Default style. I have SettingsTableCell which is a subclass of UITableViewCell. I have a SettingsTableCell.xib which contains a UITableViewCell and inside that are a couple labels and a textfield. I've set the class type in the xib to be SettingsTableCell and the File's Owner of the xib to my table controller. My SettingsTableController has an IBOutlet property named tableCell. My cellForRowAtIndexPath contains the following code to load my table view xib and assign it to my table controller's tableCell property: static NSString *CellIdentifier = @"CellSettings"; SettingsTableCell *cell = (SettingsTableCell*)[tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { [[NSBundle mainBundle] loadNibNamed:@"SettingsTableCell" owner:self options:nil]; cell = self.tableCell; self.tableCell = nil; NSLog(@"cell=%@", cell); } This is what my xib set up looks like in IB: When I run my app, the table displays as if all of the cells are standard Default style cells though: The seriously weird part is though... if I tap on the area of the cell where the textfield SHOULD be, the keyboard does come up! The textfield isn't visible, there's no cursor or anything like that... but it does respond. The visible UILabel is obviously not the UILabel from my xib though because the label in my xib is right justified and the one showing in the app is left justified. I'm incredibly confused about how this is happening. Any help is appreciated.

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• When I select any segment in segmentControll it doesnot show highlighted

  - by rathodrc

  NSArray *itemArray = [NSArray arrayWithObjects:@"one", @"Two", @"Three", nil]; segmentControl = [[UISegmentedControl alloc] initWithItems:itemArray]; segmentControl.frame = CGRectMake(5, 5, 325, 35); segmentControl.segmentedControlStyle = UISegmentedControlStyleBar; segmentControl.tintColor = [UIColor blackColor]; [self changeUISegmentFont:segmentControl]; //[self.view addSubview:segmentControl]; self.navigationItem.titleView = segmentControl; [segmentControl addTarget:self action:@selector(segmentAction:) forControlEvents:UIControlEventValueChanged]; This is my code of segment control and my problem is .. When I select any segment it does not show me that that segment is selected.. I mean it is not shown highlighted.. can Anyone tell me what the problem is??

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• UIButton performance in UITableViewCell vs UIView

  - by marcel salathe

  I'd like to add a UIButton to a custom UITableViewCell (programmatically). This is easy to do, but I'm finding that the "performance" of the button in the cell is slow - that is, when I touch the button, there is quite a bit of delay until the button visually goes into the highlighted state. The same type of button on a regular UIView is very responsive in comparison. In order to isolate the problem, I've created two views - one is a simple UIView, the other is a UITableView with only one UITableViewCell. I've added buttons to both views (the UIView and the UITableViewCell), and the performance difference is quite striking. I've searched the web and read the Apple docs but haven't really found the cause of the problem. My guess is that it somehow has to do with the responder chain, but I can't quite put my finger on it. I must be doing something wrong, and I'd appreciate any help. Thanks. Demo code: ViewController.h #import <UIKit/UIKit.h> @interface ViewController : UIViewController <UITableViewDelegate, UITableViewDataSource> @property UITableView* myTableView; @property UIView* myView; ViewController.m #import "ViewController.h" #import "CustomCell.h" @implementation ViewController @synthesize myTableView, myView; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { [self initMyView]; [self initMyTableView]; } return self; } - (void) initMyView { UIView* newView = [[UIView alloc] initWithFrame:CGRectMake(0,0,[[UIScreen mainScreen] bounds].size.width,100)]; self.myView = newView; // button on regularView UIButton* myButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; [myButton addTarget:self action:@selector(pressedMyButton) forControlEvents:UIControlEventTouchUpInside]; [myButton setTitle:@"I'm fast" forState:UIControlStateNormal]; [myButton setFrame:CGRectMake(20.0, 10.0, 160.0, 30.0)]; [[self myView] addSubview:myButton]; } - (void) initMyTableView { UITableView *newTableView = [[UITableView alloc] initWithFrame:CGRectMake(0,100,[[UIScreen mainScreen] bounds].size.width,[[UIScreen mainScreen] bounds].size.height-100) style:UITableViewStyleGrouped]; self.myTableView = newTableView; self.myTableView.delegate = self; self.myTableView.dataSource = self; } -(void) pressedMyButton { NSLog(@"pressedMyButton"); } - (void)viewDidLoad { [super viewDidLoad]; [[self view] addSubview:self.myView]; [[self view] addSubview:self.myTableView]; } - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return 1; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return 1; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { CustomCell *customCell = [tableView dequeueReusableCellWithIdentifier:@"CustomCell"]; if (customCell == nil) { customCell = [[CustomCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@"CustomCell"]; } return customCell; } @end CustomCell.h #import <UIKit/UIKit.h> @interface CustomCell : UITableViewCell @property (retain, nonatomic) UIButton* cellButton; @end CustomCell.m #import "CustomCell.h" @implementation CustomCell @synthesize cellButton; - (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier { self = [super initWithStyle:style reuseIdentifier:reuseIdentifier]; if (self) { // button within cell cellButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; [cellButton addTarget:self action:@selector(pressedCellButton) forControlEvents:UIControlEventTouchUpInside]; [cellButton setTitle:@"I'm sluggish" forState:UIControlStateNormal]; [cellButton setFrame:CGRectMake(20.0, 10.0, 160.0, 30.0)]; [self addSubview:cellButton]; } return self; } - (void) pressedCellButton { NSLog(@"pressedCellButton"); } @end

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• NSUserDefaults with in-app Settings bundle

  - by Hema Vasudevan

  I'm in the process of building an app and would prefer to have an in-app specific Settings bundle rather than make it available in the Settings application. I'm using NSUserDefaults class to save and retrieve them but would like to have the same Settings app look and feel. I wanted to use InAppSettingsKit or the llamasettings but don't know how to use the NSUserDefaults class. Those kits tell me how to create a .plist file and use their kits. All I need is use the Settings app look and feel while at the same time use NSUserDefaults class to save and retrieve values. Please help.

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• Refreshing a MKMapView when the user location is updated or using default values

  - by koichirose

  I'm trying to refresh my map view and load new data from the server when the device acquires the user location. Here's what I'm doing: - (void)viewDidLoad { CGRect bounds = self.view.bounds; mapView = [[MKMapView alloc] initWithFrame:bounds]; mapView.showsUserLocation=YES; mapView.delegate=self; [self.view insertSubview:mapView atIndex:0]; [self refreshMap]; } - (void)mapView:(MKMapView *)theMapView didUpdateUserLocation:(MKUserLocation *)userLocation { //this is to avoid frequent updates, I just need one position and don't need to continuously track the user's location if (userLocation.location.horizontalAccuracy > self.myUserLocation.location.horizontalAccuracy) { self.myUserLocation = userLocation; CLLocationCoordinate2D centerCoord = { userLocation.location.coordinate.latitude, userLocation.location.coordinate.longitude }; [theMapView setCenterCoordinate:centerCoord zoomLevel:10 animated:YES]; [self refreshMap]; } } - (void)refreshMap { [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES]; [self.mapView removeAnnotations:self.mapView.annotations]; //default position NSString *lat = @"45.464161"; NSString *lon = @"9.190336"; if (self.myUserLocation != nil) { lat = [[NSNumber numberWithDouble:myUserLocation.coordinate.latitude] stringValue]; lon = [[NSNumber numberWithDouble:myUserLocation.coordinate.longitude] stringValue]; } NSString *url = [[NSString alloc] initWithFormat:@"http://myserver/geo_search.json?lat=%@&lon=%@", lat, lon]; NSURLRequest *theRequest=[NSURLRequest requestWithURL:[NSURL URLWithString:url] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0]; [[NSURLConnection alloc] initWithRequest:theRequest delegate:self]; [url release]; [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO]; } I also have a - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data, to create and add the annotations. Here's what happens: sometimes I get the location after a while, so I already loaded data close to the default location. Then I get the location and it should remove the old annotations and add the new ones, instead I keep seeing the old annotations and the new ones are added anyway (let's say I receive 10 annotations each time, so it means that I have 20 on my map when I should have 10). What am I doing wrong?

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• UIImage Object surprisingly returning null but not NSData

  - by riyaz

  i have created a sqlite db. and i have insert a few datas in my db.. UIImage * imagee=[UIImage imageNamed:@"image.png"]; NSData *mydata=[NSData dataWithData:UIImagePNGRepresentation(imagee)]; const char *dbpath = [databasePath UTF8String]; NSString *insertSQL=[NSString stringWithFormat:@"insert into CONTACTS values(\"%@\",\"%@\")",@"Mathan",mydata]; NSLog(@"mydata %@",mydata); sqlite3_stmt *addStatement; const char *insert_stmt=[insertSQL UTF8String]; if (sqlite3_open(dbpath,&contactDB)==SQLITE_OK) { sqlite3_prepare_v2(contactDB,insert_stmt,-1,&addStatement,NULL); if (sqlite3_step(addStatement)==SQLITE_DONE) { sqlite3_bind_blob(addStatement,1, [mydata bytes], [mydata length], SQLITE_TRANSIENT); NSLog(@"Data saved"); } else{ NSLog(@"Some Error occured"); } sqlite3_close(contactDB); } else{ NSLog(@"Failure"); } have written some codes to retrive the data sqlite3_stmt *statement; if (sqlite3_open([databasePath UTF8String], &contactDB) == SQLITE_OK) { NSString *sql = [NSString stringWithFormat:@"SELECT * FROM contacts"]; if (sqlite3_prepare_v2( contactDB, [sql UTF8String], -1, &statement, nil) == SQLITE_OK) { while (sqlite3_step(statement) == SQLITE_ROW) { char *field1 = (char *) sqlite3_column_text(statement, 0); NSString *field1Str = [[NSString alloc] initWithUTF8String: field1]; NSLog(@"UserName %@",field1Str); NSData *data = [[NSData alloc] initWithBytes:sqlite3_column_blob(statement, 1) length:sqlite3_column_bytes(statement, 1)]; UIImage *newImage = [[UIImage alloc]initWithData:data]; NSLog(@"Image OBJ %@",newImage); NSLog(@"Image Data %@",data); } sqlite3_close(contactDB); } } sqlite3_finalize(statement); the problem is in log, inserted NSData object and retrieved NSData Objects are different (printing in log gives different stream) moreover Image OBJ is printed null in log.. Have seen similar questions in stackoverflow. But nothing seems to help. Please give some suggestions to overcome this issue.

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