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  • Newbie: UINavigationController is pulling me back from further learning :(

    - by nithin
    I have created a window-based application and my problem is I am unable to create UINavigationController on the go. InFact I don't know how to do that. My AppDelegeate - (void)applicationDidFinishLaunching:(UIApplication *)application { // Override point for customization after application launch [window addSubview:logInView.view]; [window makeKeyAndVisible]; } here the logInView is an object of @interface LogInViewController : UIViewController { IBOutlet UITextField *usernameField; IBOutlet UITextField *passwordField; IBOutlet UIButton *logInButton; } -(IBAction) logInClick:(id) sender; from the click action of this loginviewcontroller It should be showing the home screen with navigation controller. and I have to add many subviews. My question is where should I init the UINavigationController and where could I write the codes for adding subviews? how to map it with interfacebuilder?

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  • UIScrollView in a TabBar controlled navigation - IPhone

    - by user362722
    I have a TabBarControlled view navigation and i want to display a UIScrollView in one of the Tabs, but whenever i click on this tab the error-code: ...this class is not key value coding-compliant for the key... appears. My code: Code: #import <UIKit/UIKit.h> @interface BillViewController : UIViewController <UIScrollViewDelegate> { IBOutlet UIScrollView *olta; } @property (nonatomic,retain) IBOutlet UIScrollView *olta; @end My code has a IBOutlet UIScrollView and it is connected to the IB. My class also implements the desired protocol and the delegate is connected to the BillViewController-class. thanks

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  • Where are events in Cocoa Touch?

    - by yesenin
    Hi all! I learn Cocoa Touch several days, and today have stuck while looking for way to implement a custom event. Event that I can see in Connection Inspector for my UIView subclass. What I have: There are a UILabel and MyView:UIView on MainVindow. MyView contains a UISlider. Interfaces for Controller and MyView // Controller.h @interface Controller : NSObject { IBOutlet UILabel *label; IBOutlet MyView *myView; } // I suppose that there should be something like -(IBAction) changeLabelValue for myView event @end // MyView.h @interface MyView : UIView { IBOutlet UISlider *slider; float value; } - (IBAction) changeValue; //for slider "Changed Value" event What I want: Add something in MyView that allows it to rise a event after change value. Can anybody help me? My main area in programming is .NET and I begin think that its terminology is not appropriate for this case. Thanks.

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  • Picker view wont rotate- iPhone

    - by lotuseater
    hi, I am making a booking page. I have included 3 pickers in it. I have included all the delegates required for the pickers to work but it wont rotate. I have enabled user interaction and multitouch in the nib file. Here is my code. Please help me. :( @interface ChooseContactsFrom : UIViewController { IBOutlet UIPickerView *statePickup; IBOutlet UIPickerView *paymentMethodPickup; IBOutlet UIDatePicker *expiryDatePickup; IBOutlet UIView *statePickupView; IBOutlet UIView *paymentMethodPickupView; IBOutlet UIView *expiryDatePickupView; } (void)viewDidLoad { self.title = @"Choose Contacts"; //Fill in the states name/ stateArray = [[NSArray alloc]initWithObjects:@"",nil]; paymentModeArray = [[NSArray alloc] initWithObjects:@"Credit Card", @"Cash",@"Account",@"Voucher",@"Debit Card", nil]; paymentMethodPickup.frame = CGRectMake(0.0, 44.0, paymentMethodPickup.frame.size.width, paymentMethodPickup.frame.size.height); paymentMethodPickup.userInteractionEnabled = YES; paymentMethodPickup.multipleTouchEnabled = YES; paymentMethodPickupView.frame = CGRectMake(0.0, 210.0, paymentMethodPickupView.frame.size.width, paymentMethodPickupView.frame.size.height); statePickup.frame = CGRectMake(0.0, 44.0,statePickup.frame.size.width, statePickup.frame.size.height); statePickupView.frame = CGRectMake(0.0, 210.0, statePickupView.frame.size.width, statePickupView.frame.size.height); stateArray = [[NSArray alloc] initWithObjects:@"state1", @"state2", @"state3", @"state4", @"state5", @"state6", @"state7", @"state8", @"state9", @"state10", nil]; expiryDatePickup.frame = CGRectMake(0.0, 44.0, expiryDatePickup.frame.size.width, expiryDatePickup.frame.size.height); expiryDatePickupView.frame = CGRectMake(0.0, 210.0, expiryDatePickupView.frame.size.width, expiryDatePickupView.frame.size.height); [super viewDidLoad]; } -(IBAction)back:(id)sender { [self dismissModalViewControllerAnimated:YES]; } pragma mark pickerView delegates (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)thePickerView { return 1; } (NSInteger)pickerView:(UIPickerView *)thePickerView numberOfRowsInComponent:(NSInteger)component { if( thePickerView == statePickup) { return [stateArray count]; } else if(thePickerView == paymentMethodPickup) { return [paymentModeArray count]; } else { return 0; } } (NSString *)pickerView:(UIPickerView *)thePickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component { if(thePickerView == statePickup) { return [stateArray objectAtIndex:row]; } else if(thePickerView == paymentMethodPickup) { return [paymentModeArray objectAtIndex:row]; } else { return @" "; } } (CGFloat)pickerView:(UIPickerView *)pickerView rowHeightForComponent:(NSInteger)component{ return 50; } (CGFloat)pickerView:(UIPickerView *)pickerView widthForComponent:(NSInteger)component { return 250; } (void)pickerView:(UIPickerView *)thepickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component { if(thepickerView == statePickup) { state.text=[stateArray objectAtIndex:row]; } if(thepickerView == paymentMethodPickup) { payment.text=[paymentModeArray objectAtIndex:row]; } } (void)ClearSubviews { //[firstName resignFirstResponder]; // [lastName resignFirstResponder]; // [email resignFirstResponder]; // [address1 resignFirstResponder]; // [address2 resignFirstResponder]; // [city resignFirstResponder]; // //[state resignFirstResponder]; // [payment resignFirstResponder]; // [creditCard resignFirstResponder]; // [expirydate removeFromSuperview]; // [statePickup removeFromSuperview]; // [paymentMethodPickup removeFromSuperview]; } (BOOL)textFieldShouldBeginEditing:(UITextField *)textField { // [self showPicker:textField]; //[self setViewMovedUp]; if(textField == firstName || textField == lastName || textField == email || textField == address1 || textField == address2 ||textField == city) { [self ClearSubviews]; //pickerToolbar.hidden = TRUE; return YES; } else if(textField == payment) { [self ClearSubviews]; [self setViewMovedUp]; [payment setText:[paymentModeArray objectAtIndex:0]]; [self.view insertSubview:paymentMethodPickupView aboveSubview:self.view]; return NO; } else if(textField == state) { [self ClearSubviews]; [self setViewMovedUp]; [state setText:[stateArray objectAtIndex:0]]; [self.view insertSubview:statePickupView aboveSubview:self.view]; return NO; } else if(textField == expirydate) { [self setViewMovedUp]; expiryDatePickup.date = [NSDate date]; NSDate *date1 = [NSDate date]; NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setDateStyle:NSDateFormatterMediumStyle]; NSString *strDate=[dateFormatter stringFromDate:date1]; NSString *str=[[NSString alloc] initWithString: strDate]; [expirydate setText:str]; [self.view insertSubview:expiryDatePickupView aboveSubview:self.view]; return NO; } else if(textField == creditCard) { [self ClearSubviews]; [self setViewMovedUp]; return YES; } else { [self ClearSubviews]; return YES; } } -(BOOL)textFieldShouldEndEditing:(UITextField *)textField { return YES; } (void)textFieldDidEndEditing:(UITextField *)textField { if(textField == creditCard) { [self moveDown]; } } (BOOL)textFieldShouldReturn:(UITextField *)textField { [firstName resignFirstResponder]; [lastName resignFirstResponder]; [email resignFirstResponder]; [address1 resignFirstResponder]; [address2 resignFirstResponder]; [city resignFirstResponder]; [creditCard resignFirstResponder]; return YES; } -(IBAction)textFieldDoneEditing:(id)sender { [sender resignFirstResponder]; } ////////----------------------------------------------------------------------- pragma mark move screen (void)setViewMovedUp { [UIView beginAnimations:nil context:NULL]; [UIView setAnimationDuration:0.3]; // Make changes to the view's frame inside the animation block. They will be animated instead // of taking place immediately. CGRect rect = [self.view frame]; // If moving up, not only decrease the origin but increase the height so the view // covers the entire screen behind the keyboard. rect.origin.y -= 50.0f; rect.size.height -= 80.0f; [self.view setFrame:rect]; [UIView commitAnimations]; } -(void)moveDown { [UIView beginAnimations:nil context:NULL]; [UIView setAnimationDuration:0.3]; // Make changes to the view's frame inside the animation block. They will be animated instead // of taking place immediately. CGRect rect = [self.view frame]; rect.origin.y += 50.0f; rect.size.height += 80.0f; [self.view setFrame:rect]; // [UIView setBackgroundColor:[UIColor darkGrayColor]]; [UIView commitAnimations]; } pragma mark Method to show pickers -(void)showPicker:(UITextField *)textField { if(textField == expirydate) { expiryDatePickup .date = [NSDate date]; NSDate *date1 = [NSDate date]; NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setDateStyle:NSDateFormatterMediumStyle]; NSString *strDate=[dateFormatter stringFromDate:date1]; NSString *str=[[NSString alloc] initWithString: strDate]; [expirydate setText:str]; [self.view insertSubview:expiryDatePickup aboveSubview:self.view]; } else if(textField == payment) { [payment setText:[paymentModeArray objectAtIndex:0]]; [self.view insertSubview:paymentMethodPickupView aboveSubview:self.view]; } else if(textField == state) { [state setText:[stateArray objectAtIndex:0]]; [self.view insertSubview:statePickupView aboveSubview:self.view]; } } (IBAction)datePickerChanged:(id)sender { NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setDateStyle:NSDateFormatterMediumStyle]; NSDate *date=expiryDatePickup.date; formattedDateString1 = [dateFormatter stringFromDate:date]; [expirydate setText:formattedDateString1]; NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar]; unsigned int unitFlags = NSMonthCalendarUnit | NSDayCalendarUnit; components = [gregorian components:unitFlags fromDate:date]; [gregorian release]; } pragma mark done and cancel methods -(IBAction) btnCancelExpiryDate:(id)sender { [self moveDown]; [expirydate setText:@" "]; [expiryDatePickupView removeFromSuperview]; } -(IBAction) btnDoneExpiryDate:(id)sender { [self moveDown]; [expiryDatePickupView removeFromSuperview]; expiryDatePickup .date = [NSDate date]; } -(IBAction)cancelPaymentType:(id)sender { [self moveDown]; [payment setText:@" "]; [paymentMethodPickupView removeFromSuperview]; } -(IBAction)donePaymentType:(id)sender { [self moveDown]; [paymentMethodPickupView removeFromSuperview]; } -(IBAction)doneState:(id)sender { [self moveDown]; [statePickupView removeFromSuperview]; } (IBAction)cancelState:(id)sender; { [self moveDown]; [state setText:@" "]; [statePickupView removeFromSuperview]; }

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  • My UITabBarController's didSelectViewController method is not getting called?

    - by mobibob
    Here is my code stub for my app-delegate.m -- it never gets called. - (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController { NSLog(@"%s", __FUNCTION__); } It is defined in this app-delegate.h @interface OrioleAppDelegate : NSObject <UIApplicationDelegate, UITabBarControllerDelegate> { UIWindow *window; UITabBarController *tabBarController; } @property (nonatomic, retain) IBOutlet UIWindow *window; @property (nonatomic, retain) IBOutlet UITabBarController *tabBarController; @end

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  • How to make and use first object in Objective C to store sender tag

    - by dbonneville
    I started with a sample program that simply sets up a UIView with some buttons on it. Works great. I want to access the sender tag from each button and save it. My first thought was to save it to a global variable but I couldn't get it to work right. I thought the best way would be to create an object with one property and synthesize it so I can get or set it as needed. First, I created GlobalGem.h: #import <Foundation/Foundation.h> @interface GlobalGem : NSObject { int gemTag; } @property int gemTag; -(void) print; @end Then I created GlobalGem.m: #import "GlobalGem.h" @implementation GlobalGem @synthesize gemTag; -(void) print { NSLog(@"gemTag value is %i", gemTag); } @end The sample code I worked from doesn't do anything I can see in "main" where the program initializes. They just have their methods and are set up to handle IBOutlet actions. I want to use this object in the IBOutlet methods. But I don't know where to create the object. In the viewDidLoad, I tried this: GlobalGem *aGem = [[GlobalGem alloc]init]; [aGem print]; I added reference to the .h file of course. The print method works. In the nslog I get "gemTag value is 0". But now I want to use the instance aGem in some of the IBOutlet actions. For instance, if I put this same method in one of the outlet actions like this: - (IBAction)touchButton:(id)sender { [aGem print]; } ...I get a build error saying that "aGem is undeclared". Yes, I'm new to objective c and am very confused. Is the instance I created, aGem, in the viewDidLoad not accessible outside of that method? How would I create an instance of a Class that I can store a variable value that any of the IBOutlet methods can access? All the buttons need to be able to store their sender tag in the instance aGem and I'm stuck. As I mentioned earlier, I was able to write the sender tag to a global variable I declared in the UIView .h file that came with the program, but I ran into issues using it. Where am I off?

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  • Help: Instance Variables & Properties [iPhone]

    - by Devoted
    In something like this: @interface Control_FunViewController : UIViewController { UITextField *nameField; UITextField *numberField; } @property (nonatomic, retain) IBOutlet UITextField *nameField; @property (nonatomic, retain) IBOutlet UITextField *numberField; I understand that "UITextField *nameField;" is an instance variable and "@property ..." is a property. But what do these individual things do? I guess what I'm really asking is how the property is used for example in the implementation file (.m)

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  • Objective C IBOutlets

    - by Alan
    In cases where multiple buttons call an IBOutlet, can the IBOutlet determine which button was pressed? edit: All fixed and wired up. key point: Object ID is not sender tag! Tag is a standalone value on the first page of the attributes. - (IBAction)buttonPressed:(id)sender { switch ( [sender tag] ) { case 109: NSLog(@"Button 1"); break; case 108: NSLog(@"Button 2"); break; } }

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  • Working through exercises in "Cocoa Programming for Mac OS X" - I'm stumped

    - by Zigrivers
    I've been working through the exercises in a book recommended here on stackoverflow, however I've run into a problem and after three days of banging my head on the wall, I think I need some help. I'm working through the "Speakline" exercise where we add a TableView to the interface and the table will display the "voices" that you can choose for the text to speech aspect of the program. I am having two problems that I can't seem to get to the bottom of: I get the following error: * Illegal NSTableView data source (). Must implement numberOfRowsInTableView: and tableView:objectValueForTableColumn:row: The tableView that is supposed to display the voices comes up blank I have a feeling that both of these problems are related. I'm including my interface code here: #import <Cocoa/Cocoa.h> @interface AppController : NSObject <NSSpeechSynthesizerDelegate, NSTableViewDelegate> { IBOutlet NSTextField *textField; NSSpeechSynthesizer *speechSynth; IBOutlet NSButton *stopButton; IBOutlet NSButton *startButton; IBOutlet NSTableView *tableView; NSArray *voiceList; } - (IBAction)sayIt:(id)sender; - (IBAction)stopIt:(id)sender; @end And my implementation code here: #import "AppController.h" @implementation AppController - (id)init { [super init]; //Log to help me understand what is happening NSLog(@"init"); speechSynth = [[NSSpeechSynthesizer alloc] initWithVoice:nil]; [speechSynth setDelegate:self]; voiceList = [[NSSpeechSynthesizer availableVoices] retain]; return self; } - (IBAction)sayIt:(id)sender { NSString *string = [[textField stringValue] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]]; //Is the string zero-length? if([string length] == 0) { NSLog(@"String from %@ is a string with a length of %d.", textField, [string length]); [speechSynth startSpeakingString:@"Please enter a phrase first."]; } [speechSynth startSpeakingString:string]; NSLog(@"Started to say: %@", string); [stopButton setEnabled:YES]; [startButton setEnabled:NO]; } - (IBAction)stopIt:(id)sender { NSLog(@"Stopping..."); [speechSynth stopSpeaking]; } - (void) speechSynthesizer:(NSSpeechSynthesizer *)sender didFinishSpeaking:(BOOL)complete { NSLog(@"Complete = %d", complete); [stopButton setEnabled:NO]; [startButton setEnabled:YES]; } - (NSInteger)numberOfRowsInTableView:(NSTableView *)aTableView { return [voiceList count]; } - (id)tableView: (NSTableView *)tv objecValueForTableColumn: (NSTableColumn *)tableColumn row:(NSInteger)row { NSString *v = [voiceList objectAtIndex:row]; NSLog(@"v = %@",v); NSDictionary *dict = [NSSpeechSynthesizer attributesForVoice:v]; return [dict objectForKey:NSVoiceName]; } /* - (BOOL)respondsToSelector:(SEL)aSelector { NSString *methodName = NSStringFromSelector(aSelector); NSLog(@"respondsToSelector: %@", methodName); return [super respondsToSelector:aSelector]; } */ @end Hopefully, you guys can see something obvious that I've missed. Thank you!

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  • iOS bluetooth low energy not detecting peripherals

    - by user3712524
    My app won't detect peripherals. Im using light blue to simulate a bluetooth low energy peripheral and my app just won't sense it. I even installed light blue on two devices to make sure it was generating a peripheral signal properly and it is. Any suggestions? My labels are updating and the NSLog is showing that the scanning is starting. Thanks in advance. #import <UIKit/UIKit.h> #import <CoreBluetooth/CoreBluetooth.h> @interface ViewController : UIViewController @property (weak, nonatomic) IBOutlet UITextField *navDestination; @end #import "ViewController.h" @implementation ViewController - (IBAction)connect:(id)sender { } - (IBAction)navDestination:(id)sender { NSString *destinationText = self.navDestination.text; } - (void)viewDidLoad { } - (void)viewWillDisappear:(BOOL)animated { [super viewWillDisappear:animated]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } @end #import <UIKit/UIKit.h> #import "ViewController.h" @interface BlueToothViewController : UIViewController @property (strong, nonatomic) CBCentralManager *centralManager; @property (strong, nonatomic) CBPeripheral *discoveredPerepheral; @property (strong, nonatomic) NSMutableData *data; @property (strong, nonatomic) IBOutlet UITextView *textview; @property (weak, nonatomic) IBOutlet UILabel *charLabel; @property (weak, nonatomic) IBOutlet UILabel *isConnected; @property (weak, nonatomic) IBOutlet UILabel *myPeripherals; @property (weak, nonatomic) IBOutlet UILabel *aLabel; - (void)centralManagerDidUpdateState:(CBCentralManager *)central; - (void)centralManger:(CBCentralManager *)central didDiscoverPeripheral: (CBPeripheral *)peripheral advertisementData:(NSDictionary *)advertisementData RSSI:(NSNumber *)RSSI; -(void)centralManager:(CBCentralManager *)central didFailToConnectPeripheral:(CBPeripheral *)peripheral error:(NSError *)error; -(void)cleanup; -(void)centralManager:(CBCentralManager *)central didConnectPeripheral:(CBPeripheral *)peripheral; -(void)peripheral:(CBPeripheral *)peripheral didDiscoverServices:(NSError *)error; -(void)peripheral:(CBPeripheral *)peripheral didDiscoverCharacteristicsForService:(CBService *)service error:(NSError *)error; -(void)centralManager:(CBCentralManager *)central didDisconnectPeripheral:(CBPeripheral *)peripheral error:(NSError *)error; -(void)peripheral:(CBPeripheral *)peripheral didUpdateValueForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error; -(void)peripheral:(CBPeripheral *)peripheral didUpdateNotificationStateForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error; @end @interface BlueToothViewController () @end @implementation BlueToothViewController - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization } return self; } - (void)viewDidLoad { _centralManager = [[CBCentralManager alloc]initWithDelegate:self queue:nil options:nil]; _data = [[NSMutableData alloc]init]; } - (void)viewWillDisappear:(BOOL)animated { [super viewWillDisappear:animated]; [_centralManager stopScan]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } - (void)centralManagerDidUpdateState:(CBCentralManager *)central { //you should test all scenarios if (central.state == CBCentralManagerStateUnknown) { self.aLabel.text = @"I dont do anything because my state is unknown."; return; } if (central.state == CBCentralManagerStatePoweredOn) { //scan for devices [_centralManager scanForPeripheralsWithServices:nil options:@{ CBCentralManagerScanOptionAllowDuplicatesKey : @YES }]; NSLog(@"Scanning Started"); } if (central.state == CBCentralManagerStateResetting) { self.aLabel.text = @"I dont do anything because my state is resetting."; return; } if (central.state == CBCentralManagerStateUnsupported) { self.aLabel.text = @"I dont do anything because my state is unsupported."; return; } if (central.state == CBCentralManagerStateUnauthorized) { self.aLabel.text = @"I dont do anything because my state is unauthorized."; return; } if (central.state == CBCentralManagerStatePoweredOff) { self.aLabel.text = @"I dont do anything because my state is powered off."; return; } } - (void)centralManger:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary *)advertisementData RSSI:(NSNumber *)RSSI { NSLog(@"Discovered %@ at %@", peripheral.name, RSSI); self.myPeripherals.text = [NSString stringWithFormat:@"%@%@",peripheral.name, RSSI]; if (_discoveredPerepheral != peripheral) { //save a copy of the peripheral _discoveredPerepheral = peripheral; //and connect NSLog(@"Connecting to peripheral %@", peripheral); [_centralManager connectPeripheral:peripheral options:nil]; self.aLabel.text = [NSString stringWithFormat:@"%@", peripheral]; } } -(void)centralManager:(CBCentralManager *)central didFailToConnectPeripheral:(CBPeripheral *)peripheral error:(NSError *)error { NSLog(@"Failed to connect"); [self cleanup]; } -(void)cleanup { //see if we are subscribed to a characteristic on the peripheral if (_discoveredPerepheral.services != nil) { for (CBService *service in _discoveredPerepheral.services) { if (service.characteristics != nil) { for (CBCharacteristic *characteristic in service.characteristics) { if ([characteristic.UUID isEqual:[CBUUID UUIDWithString:@"508EFF8E-F541-57EF-BD82-B0B4EC504CA9"]]) { if (characteristic.isNotifying) { [_discoveredPerepheral setNotifyValue:NO forCharacteristic:characteristic]; return; } } } } } } [_centralManager cancelPeripheralConnection:_discoveredPerepheral]; } -(void)centralManager:(CBCentralManager *)central didConnectPeripheral:(CBPeripheral *)peripheral { NSLog(@"Connected"); [_centralManager stopScan]; NSLog(@"Scanning stopped"); self.isConnected.text = [NSString stringWithFormat:@"Connected"]; [_data setLength:0]; peripheral.delegate = self; [peripheral discoverServices:nil]; } -(void)peripheral:(CBPeripheral *)peripheral didDiscoverServices:(NSError *)error { if (error) { [self cleanup]; return; } for (CBService *service in peripheral.services) { [peripheral discoverCharacteristics:nil forService:service]; } //discover other characteristics } -(void)peripheral:(CBPeripheral *)peripheral didDiscoverCharacteristicsForService:(CBService *)service error:(NSError *)error { if (error) { [self cleanup]; return; } for (CBCharacteristic *characteristic in service.characteristics) { [peripheral setNotifyValue:YES forCharacteristic:characteristic]; } } -(void)peripheral:(CBPeripheral *)peripheral didUpdateValueForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error { if (error) { NSLog(@"Error"); return; } NSString *stringFromData = [[NSString alloc]initWithData:characteristic.value encoding:NSUTF8StringEncoding]; self.charLabel.text = [NSString stringWithFormat:@"%@", stringFromData]; //Have we got everything we need? if ([stringFromData isEqualToString:@"EOM"]) { [_textview setText:[[NSString alloc]initWithData:self.data encoding:NSUTF8StringEncoding]]; [peripheral setNotifyValue:NO forCharacteristic:characteristic]; [_centralManager cancelPeripheralConnection:peripheral]; } } -(void)peripheral:(CBPeripheral *)peripheral didUpdateNotificationStateForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error { if ([characteristic.UUID isEqual:nil]) { return; } if (characteristic.isNotifying) { NSLog(@"Notification began on %@", characteristic); } else { [_centralManager cancelPeripheralConnection:peripheral]; } } -(void)centralManager:(CBCentralManager *)central didDisconnectPeripheral:(CBPeripheral *)peripheral error:(NSError *)error { _discoveredPerepheral = nil; self.isConnected.text = [NSString stringWithFormat:@"Connecting..."]; [_centralManager scanForPeripheralsWithServices:nil options:@{ CBCentralManagerScanOptionAllowDuplicatesKey : @YES}]; } @end

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  • Xcode is not calling asp.net webservice

    - by vaibhav
    I have oracle database and using webservice i want to insert some records in to it So i created webservice in asp.net as follows public bool PickPill(string Me_id, string Mem_device_id, string Test_datetime, string Creation_id, string PillBayNo) { string Hed_seq_id = Hed_seq_Id(); bool ResultHED = InsHealthEData(Hed_seq_id, Mem_device_id, Me_id, Test_datetime, Creation_id); bool ResultHET = InsHealthETest(Hed_seq_id, PillBayNo, Test_datetime, Creation_id); if (ResultHED == ResultHET == true) return true; else return false; } this function did all data insertion trick for me i tested this service on the local mechine with ip address http:72.44.151.178/PickPillService.asmx then, I see an example on how to attach asp.net web service to iphone apps http://www.devx.com/wireless/Article/43209/0/page/4 then i created simillar code in xcode which has 2 files ConsumePillServiceViewController.m ConsumePillServiceViewController.h file Now, Using Designer of xcode i created 5 textboxes(Me_id,Mem_device_id,Test_datetime,Creation_id,PillBayNo) with all parameters hardcode as our service demands then modify my ConsumePillServiceViewController.h file as follows @interface ConsumePillServiceViewController : UIViewController { //---outlets--- IBOutlet UITextField *Me_id; IBOutlet UITextField *Mem_device_id; IBOutlet UITextField *Test_datetime; IBOutlet UITextField *Creation_id; IBOutlet UITextField *PillBayNo; //---web service access--- NSMutableData *webData; NSMutableString *soapResults; NSURLConnection *conn; } @property (nonatomic, retain) UITextField *Me_id; @property (nonatomic, retain) UITextField *Mem_device_id; @property (nonatomic, retain) UITextField *Test_datetime; @property (nonatomic, retain) UITextField *Creation_id; @property (nonatomic, retain) UITextField *PillBayNo; - (IBAction)buttonClicked:(id)sender; @end and ConsumePillServiceViewController.m as follows import "ConsumePillServiceViewController.h" @implementation ConsumePillServiceViewController @synthesize Me_id; @synthesize Mem_device_id; @synthesize Test_datetime; @synthesize Creation_id; @synthesize PillBayNo; (IBAction)buttonClicked:(id)sender { NSString *soapMsg = @"" "" "" ""; NSString *smMe_id= [soapMsg stringByAppendingString: [NSString stringWithFormat: @"%@",Me_id.text]]; NSString *smMem_device_id= [smMe_id stringByAppendingString: [NSString stringWithFormat: @"%@",Mem_device_id.text]]; NSString *smTest_datetime= [smMem_device_id stringByAppendingString: [NSString stringWithFormat: @"%@",Test_datetime.text]]; NSString *smCreation_id= [smTest_datetime stringByAppendingString: [NSString stringWithFormat: @"%@",Creation_id.text]]; NSString *smPillBayNo= [smCreation_id stringByAppendingString: [NSString stringWithFormat: @"%@",PillBayNo.text]]; NSString *smRestMsg= [smPillBayNo stringByAppendingString: @"" "" ""]; soapMsg=smRestMsg; //---print it to the Debugger Console for verification--- NSLog(soapMsg); NSURL *url = [NSURL URLWithString: //create a URL load request object using instances : @"http://72.44.151.178/PickPillService.asmx"];//of the NSMutableURLRequest and NSURL objects NSMutableURLRequest *req = [NSMutableURLRequest requestWithURL:url]; //opulate the request object with the various headers, such as Content-Type, SOAPAction, and Content-Length. //You also set the HTTP method and HTTP body NSString *msgLength = [NSString stringWithFormat:@"%d", [soapMsg length]]; [req addValue:@"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"]; [req addValue:@"http://tempuri.org/PickPill" forHTTPHeaderField:@"SOAPAction"]; [req addValue:msgLength forHTTPHeaderField:@"Content-Length"]; //---set the HTTP method and body--- [req setHTTPMethod:@"POST"]; [req setHTTPBody: [soapMsg dataUsingEncoding:NSUTF8StringEncoding]]; conn = [[NSURLConnection alloc] initWithRequest:req delegate:self]; //establish the connection with the web service, if (conn) { //you use the NSURLConnection class together with the request object just created webData = [[NSMutableData data] retain];//webData object use to receive incoming data from the web service } }//End of button clicked event -(void) connection:(NSURLConnection *) connection //Recive response didReceiveResponse:(NSURLResponse *) response { [webData setLength: 0]; } -(void) connection:(NSURLConnection *) connection //Repeative call method and append data to webData didReceiveData:(NSData *) data { [webData appendData:data]; } -(void) connection:(NSURLConnection *) connection//If error occure error should be displayed didFailWithError:(NSError *) error { [webData release]; [connection release]; } -(void) connectionDidFinishLoading:(NSURLConnection *) connection { NSLog(@"DONE. Received Bytes: %d", [webData length]); NSString *theXML = [[NSString alloc] initWithBytes: [webData mutableBytes] length:[webData length] encoding:NSUTF8StringEncoding]; //---shows the XML--- NSLog(theXML); [connection release]; [webData release]; } (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 { [Me_id release]; [Creation_id release]; [Mem_device_id release]; [Test_datetime release]; [PillBayNo release]; [soapResults release]; [super dealloc]; } @end I did all things as shown in the website and when i built application it successfully built but in the debuggin window i see (gdb) continue 2010-03-17 09:09:54.595 ConsumePillService[6546:20b] A00000004303101103/13/2010 07:34:38Hboxdata2 (gdb) continue (gdb) continue (gdb) continue 2010-03-17 09:10:05.411 ConsumePillService[6546:20b] DONE. Received Bytes: 476 2010-03-17 09:10:05.412 ConsumePillService[6546:20b] soap:ServerServer was unable to process request. ---> One or more errors occurred during processing of command. ORA-00936: missing expression It should return me true if all things are ok What is this ORA-00936 error all about as it is not releted with webservice Please help me solving this problem Thanks in advance, Vaibhav Deshpande

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  • Can't get NSTableView to display data.

    - by Alberto
    Hi! I see there are a lot of questions about this, but nothing helped me to get this work. I have a nib with a NSTableView with three columns (with the right identifiers set) and a class named ShortcutsTableController. In the nib I have a NSObject with class value ShortcutsTableController. I also connected the NSTableView to my controller as I usually do. This is header ShortcutsTableController.h. #import <Cocoa/Cocoa.h> @interface ShortcutsTableController : NSObject <NSTableViewDataSource> { IBOutlet NSTableView *shortcutsTable; NSMutableArray *shortcutsList; } - (int) numberOfRowsInTableView: (NSTableView*) tableView; - (id)tableView:(NSTableView *)tableView objectValueForTableColumn:(NSTableColumn *)tableColumn row:(int)row; @property (assign) IBOutlet NSTableView *shortcutsTable; - (void)setUpTable; @end And this is the implementation file ShortcutsTableController.m. #import "ShortcutsTableController.h" @implementation ShortcutsTableController @synthesize shortcutsTable; - (void)setUpTable { shortcutsList = [[NSMutableArray alloc] init]; NSDictionary *dict1 = [NSDictionary dictionaryWithObjectsAndKeys: @"blabla", @"nameColumn", @"Bla bla bla", @"shortcutColumn", @"Ribla", @"actionColumn", nil]; [shortcutsList addObject:dict1]; [shortcutsTable setDataSource:self]; [shortcutsTable reloadData]; } -(int) numberOfRowsInTableView: (NSTableView *) tableView { return [shortcutsList count]; } - (id)tableView:(NSTableView *)tableView objectValueForTableColumn:(NSTableColumn *)tableColumn row:(int)row { if (row != -1) return [[shortcutsList objectAtIndex:row] objectForKey:[tableColumn identifier]]; return nil; } @end But when i try to build nothing appears in the NSTableView. No errors, no warnings. Note that I call setUpTable from within the Delegate Class Method awakeFromNib. Is there something I am doing wrong? Thank you for you help. —Albé UPDATE. Added lines @property (assign) IBOutlet NSTableView *shortcutsTable; in header and @synthesize shortcutsTable; in implementation. Nothing changes. :(

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  • NSTableView is not showing my data. Why is that happening?

    - by lampShade
    I'm making a "simple" to-do-list project and running into a few bumps in the road. The problem is that my NSTableView is NOT showing the data from the NSMutableArray "myArray" and I don't know why that is. Can someone point out my mistake? /* IBOutlet NSTextField *textField; IBOutlet NSTabView *tableView; IBOutlet NSButton *button; NSMutableArray *myArray; */ #import "AppController.h" @implementation AppController -(IBAction)addNewItem:(id)sender { NSString *myString = [textField stringValue]; NSLog(@"my stirng is %@",myString); myArray = [[NSMutableArray alloc] initWithCapacity:100]; [myArray addObject:myString]; } - (int)numberOfRowsInTableView:(NSTableView *)aTableView { return [myArray count]; } - (id)tableView:(NSTableView *)aTableView objectValueForTableColumn:(NSTableColumn *)aTableColumn row:(int)rowIndex { return [myArray objectAtIndex:rowIndex]; } -(id)init { [super init]; [tableView setDataSource:self]; [tableView setDelegate:self]; NSLog(@"init"); return self; } @end

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  • How do I edit a row in NSTableView to allow deleting the data in that row and replacing with new d

    - by lampShade
    I'm building a to-do-list application and I want to be able to edit the entries in the table and replace them with new entries. I'm close to being able to do what I want but not quit. Here is my code so far: /* IBOutlet NSTextField *textField; IBOutlet NSTabView *tableView; IBOutlet NSButton *button; NSMutableArray *myArray; */ #import "AppController.h" @implementation AppController -(IBAction)addNewItem:(id)sender { [myArray addObject:[textField stringValue]]; [tableView reloadData]; } - (int)numberOfRowsInTableView:(NSTableView *)aTableView { return [myArray count]; } - (id)tableView:(NSTableView *)aTableView objectValueForTableColumn:(NSTableColumn *)aTableColumn row:(int)rowIndex { return [myArray objectAtIndex:rowIndex]; } - (id)init { [super init]; myArray = [[NSMutableArray alloc] init]; return self; } -(IBAction)removeItem:(id)sender { NSLog(@"This is the index of the selected row: %d",[tableView selectedRow]); NSLog(@"the clicked row is %d",[tableView clickedRow]); [myArray replaceObjectAtIndex:[tableView selectedRow] withObject:[textField stringValue]]; [myArray addObject:[textField stringValue]]; //[tableView reloadData]; } @end

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  • About updating a View using in iPhone using Objective C.

    - by Tattat
    I have a scene, called testScene, it works like this: @interface testScene : myScene { IBOutlet UIView *subview; IBOutlet UIView *drawingCanvasView; IBOutlet UIButton *update; } - (void)updateDrawingCanvas: (id) sender; and when the user click the button, update, it will run the updateDrawingCanvas method. So, I have a drawingCanvasView, which gave a drawingCanvas.h, and .m, it like this: #import <UIKit/UIKit.h> @interface DrawingCanvasView : UIView { CGImageRef image; } -(void)setNeedsDisplayInRect:(CGContextRef)context; @end In the DrawingCanvasView, I have a drawRect method like this: CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSetLineWidth(context, 2.0); CGContextSetStrokeColorWithColor(context, [UIColor redColor].CGColor); CGContextMoveToPoint(context, 0.0f, 0.0f); CGContextAddLineToPoint(context, 100.0f, 100.0f); CGContextStrokePath(context); And I want the user click the button, and execute this, so I added a new method called setNeedsDisplayInRect: CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSetLineWidth(context, 2.0); CGContextSetStrokeColorWithColor(context, [UIColor yellowColor].CGColor); CGContextMoveToPoint(context, 0.0f, 0.0f); CGContextAddLineToPoint(context, 200.0f, 200.0f); CGContextStrokePath(context); But I can't called that in my updateDrawingCanvas method, it work like this: - (void)updateDrawingCanvas: (id) sender{ NSLog(@"loaded"); [DrawingCanvasView setNeedsDisplayInRect:UIGraphicsGetCurrentContext()]; } It my logic / concept right? or something I did wrong, thx.

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  • UIImagePickerControllerDelegate Returns Blank "editingInfo" Dictionary Object

    - by Leachy Peachy
    Hi there, I have an iPhone app that calls upon the UIImagePickerController to offer folks a choice between selecting images via the camera or via their photo library on the phone. The problem is that sometimes, (Can't always get it to replicate.), the editingInfo dictionary object that is supposed to be returned by didFinishPickingImage delegate message, comes back blank or (null). Has anyone else seen this before? I am implementing the UIImagePickerControllerDelegate in my .h file and I am correctly implementing the two delegate methods: didFinishPickingImage and imagePickerControllerDidCancel. Any help would be greatly appreciated. Thank you in advance! Here is my code... my .h file: @interface AddPhotoController : UIViewController <UIImagePickerControllerDelegate, UINavigationControllerDelegate> { IBOutlet UIImageView *imageView; IBOutlet UIButton *snapNewPictureButton; IBOutlet UIButton *selectFromPhotoLibraryButton; } @property (nonatomic, retain) UIImageView *imageView; @property (nonatomic, retain) UIButton *snapNewPictureButton; @property (nonatomic, retain) UIButton * selectFromPhotoLibraryButton; my .m file: @implementation AddPhotoController @synthesize imageView, snapNewPictureButton, selectFromPhotoLibraryButton; - (IBAction)getCameraPicture:(id)sender { UIImagePickerController *picker = [[UIImagePickerController alloc] init]; picker.delegate = self; picker.sourceType = UIImagePickerControllerSourceTypeCamera; picker.allowsImageEditing = YES; [self presentModalViewController:picker animated:YES]; [picker release]; } - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo { NSLog(@"Image Meta Info.: %@",editingInfo); UIImage *selectedImage = image; imageView.image = selectedImage; self._havePictureData = YES; [self.useThisPhotoButton setEnabled:YES]; [picker dismissModalViewControllerAnimated:YES]; } - (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker { [picker dismissModalViewControllerAnimated:YES]; }

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  • Sharing same properties of ViewController for iPhone Stroryboard and iPad Story Board

    - by Ruhul Amin
    I'm developing a universal application. in the first view, I have the login screen for the user. In iPhone storyBoard, I have added 2 text field and one button( login check). I have added properties in ViewController.h file by dragging those objects(Ctrl key + Dragg) to .h file. I have added code for login check and it is working fine for iPhone. This is the code in ViewController.h @property (strong, nonatomic) IBOutlet UITextField *txtUserId; @property (strong, nonatomic) IBOutlet UITextField *txtUserPwd; @property (strong, nonatomic) IBOutlet UIButton *btnLogin; In the iPad storyBoard, I have added 2 text field( userid and password) and i button for login. So now, I want to bind those objects with the veriable which I declared already in ViewController.h file in case of iPhone. My questions: 1. What is the right way to bind properties for both storyboard? 2. Am I on the right direction or should I think in a different way to do it? I am new with iPhone development. Please help. Thanks. --Amin

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  • delegate issues in Xcode

    - by trludt
    .h file #import <UIKit/UIKit.h> @interface AddEventViewController : UIViewController <UITextViewDelegate> @end .m file @property (weak, nonatomic) IBOutlet UITextField *textField1; @property (weak, nonatomic) IBOutlet UITextField *textField2; @property (weak, nonatomic) IBOutlet UITextField *textField3; - (IBAction)textFieldReturn:(id)sender; @end @implementation AddEventViewController @synthesize textField1, textField2, textField3; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization } return self; } - (IBAction)textFieldReturn:(id)sender; { [sender resignFirstResponder]; } - (void)viewDidLoad { [super viewDidLoad]; self.textField1.delegate = self; textField1.delegate = self; // Do any additional setup after loading the view. } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } - (void)touchesBegan: (NSSet *) touches withEvent: (UIEvent *)event { if (textField1) { if ([textField1 canResignFirstResponder]) [textField1 resignFirstResponder]; } [super touchesBegan: touches withEvent: event]; if (textField2) { if ([textField2 canResignFirstResponder]) [textField2 resignFirstResponder]; } [super touchesBegan: touches withEvent: event]; if (textField3) { if ([textField3 canResignFirstResponder]) [textField3 resignFirstResponder]; } [super touchesBegan: touches withEvent: event]; } - (BOOL)textFieldShouldReturn:(UITextField *)textField { [textField1 resignFirstResponder]; return NO; [textField2 resignFirstResponder]; return NO; [textField3 resignFirstResponder]; return NO; } @end Ok so im getting the yellow bug symbol on the lines: - (void)viewDidLoad { [super viewDidLoad]; self.textField1.delegate = self; textField1.delegate = self; } I don't know how to delegate all of my textFields? how do i make this textFieldReturn work for all of my textFields.. that viewDidLoad area has to be the problem, because everything else works good...

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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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  • Passing Variables between views / view controllers

    - by Dan
    Hi I'm new to ObjectiveC / IPhoneSDK and I'm informally trying to study it on my own. What I'm basically trying to do is from one view there are 12 zodiac signs. When a user clicks one, it proceeds to the second view (with animation) and loads the name of the zodiac sign it clicked in a UILabel, that's it. Here are my codes: Lovescopes = 1st page Horoscopes = 2nd page Lovescopes4AppDelegate.h #import <UIKit/UIKit.h> #import "HoroscopesViewController.h" #import "Lovescopes4AppDelegate.h" @class Lovescopes4ViewController; @interface Lovescopes4AppDelegate : NSObject <UIApplicationDelegate> { UIWindow *window; Lovescopes4ViewController *viewController; HoroscopesViewController *horoscopesViewController; } -(void)loadHoroscope; -(void)loadMainPage; @property (nonatomic, retain) IBOutlet UIWindow *window; @property (nonatomic, retain) IBOutlet Lovescopes4ViewController *viewController; @property (nonatomic, retain) HoroscopesViewController *horoscopesViewController; @end Lovescopes4AppDelegate.m #import "Lovescopes4AppDelegate.h" #import "Lovescopes4ViewController.h" @implementation Lovescopes4AppDelegate @synthesize window; @synthesize viewController; @synthesize horoscopesViewController; -(void)loadHoroscope { HoroscopesViewController *aHoroscopeViewController = [[HoroscopesViewController alloc] initWithNibName:@"HoroscopesViewController" bundle:nil]; [self setHoroscopesViewController:aHoroscopeViewController]; [aHoroscopeViewController release]; [UIView beginAnimations:nil context:NULL]; [UIView setAnimationDuration:0.5]; [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:window cache:YES]; [viewController.view removeFromSuperview]; [self.window addSubview:[horoscopesViewController view]]; [UIView commitAnimations]; } -(void)loadMainPage { [UIView beginAnimations:nil context:NULL]; [UIView setAnimationDuration:0.5]; [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:window cache:NO]; [horoscopesViewController.view removeFromSuperview]; [self.window addSubview:[viewController view]]; [UIView commitAnimations]; [horoscopesViewController release]; horoscopesViewController = nil; } - (void)applicationDidFinishLaunching:(UIApplication *)application { // Override point for customization after app launch [window addSubview:viewController.view]; [window makeKeyAndVisible]; } - (void)dealloc { [viewController release]; [window release]; [super dealloc]; } @end Lovescopes4ViewController.h #import <UIKit/UIKit.h> #import "HoroscopesViewController.h" @interface Lovescopes4ViewController : UIViewController { HoroscopesViewController *hvc; } -(IBAction)loadAries; @property (nonatomic, retain) HoroscopesViewController *hvc; @end Lovescope4ViewController.m #import "Lovescopes4ViewController.h" #import "Lovescopes4AppDelegate.h" @implementation Lovescopes4ViewController @synthesize hvc; -(IBAction)loadAries { NSString *selected =@"Aries"; [hvc loadZodiac:selected]; Lovescopes4AppDelegate *mainDelegate = (Lovescopes4AppDelegate *) [[UIApplication sharedApplication] delegate]; [mainDelegate loadHoroscope]; } HoroscopesViewController.h #import <UIKit/UIKit.h> @interface HoroscopesViewController : UIViewController { IBOutlet UILabel *zodiacLabel; } -(void)loadZodiac:(id)zodiacSign; -(IBAction)back; @property (nonatomic, retain) IBOutlet UILabel *zodiacLabel; @end HoroscopesViewController.m #import "HoroscopesViewController.h" #import "Lovescopes4AppDelegate.h" @implementation HoroscopesViewController @synthesize zodiacLabel; /* // The designated initializer. Override if you create the controller programmatically and want to perform customization that is not appropriate for viewDidLoad. - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) { // Custom initialization } return self; } */ /* // Implement viewDidLoad to do additional setup after loading the view, typically from a nib. - (void)viewDidLoad { [super viewDidLoad]; } */ /* // Override to allow orientations other than the default portrait orientation. - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { // Return YES for supported orientations return (interfaceOrientation == UIInterfaceOrientationPortrait); } */ -(void)loadZodiac:(id)zodiacSign { zodiacLabel.text = [NSString stringWithFormat: @"%@", zodiacSign]; } -(IBAction)back { Lovescopes4AppDelegate *mainDelegate = (Lovescopes4AppDelegate *) [[UIApplication sharedApplication] delegate]; [mainDelegate loadMainPage]; }

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  • TBXML parsing issue while the value cannot get in UILabel

    - by Dany
    In my app I'm using TBXML parser where I need to get a value from xml file and print it on the label. This is my xml file in server <gold> <price> <title>22 K Gold</title> </price> <price> <title>24 K Gold</title> </price> </gold> any my Viewcontroller.h looks like #import <UIKit/UIKit.h> #import "TBXML.h" @interface ViewController : UIViewController{ IBOutlet UILabel *lab; IBOutlet UILabel *lab1; TBXML *tbxml; } @end and my Viewcontrooler.m looks like - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. NSData *xmlData = [[NSData alloc]initWithContentsOfURL:[NSURL URLWithString:@"http://www.abcde.com/sample.xml"]]; tbxml = [[TBXML alloc]initWithXMLData:xmlData]; TBXMLElement * root = tbxml.rootXMLElement; if (root) { TBXMLElement * elem_PLANT = [TBXML childElementNamed:@"price" parentElement:root]; while (elem_PLANT !=nil) { TBXMLElement * elem_BOTANICAL = [TBXML childElementNamed:@"title" parentElement:elem_PLANT]; NSString *botanicalName = [TBXML textForElement:elem_BOTANICAL]; lab.text=[NSString stringWithFormat:@"re %@", botanicalName]; elem_PLANT = [TBXML nextSiblingNamed:@"price" searchFromElement:elem_PLANT]; elem_BOTANICAL = [TBXML childElementNamed:@"title" parentElement:elem_PLANT]; botanicalName = [TBXML textForElement:elem_BOTANICAL]; lab1.text=[NSString stringWithFormat:@"re %@", botanicalName]; } } } I'm getting BAD_ACCESS thread. Am I missing anything?

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  • EXC_BAD_ACCESS error on a UITableView with ARC?

    - by Arnaud Drizard
    I am building a simple app with a custom bar tab which loads the content of the ViewController from a UITableView located in another ViewController. However, every time I try to scroll on the tableview, I get an exc_bad_access error. I enabled NSzombies and guard malloc to get more info on the issue. In the console I get: "message sent to deallocated instance 0x19182f20" and after profiling I get: # Address Category Event Type RefCt Timestamp Size Responsible Library Responsible Caller 56 0x19182f20 FirstTabBarViewController Zombie -1 00:16.613.309 0 UIKit -[UIScrollView(UIScrollViewInternal) _scrollViewWillBeginDragging] Here is a bit of the code of the ViewController in which the error occurs: .h file: #import <UIKit/UIKit.h> #import "DataController.h" @interface FirstTabBarViewController : UIViewController <UITableViewDelegate, UITableViewDataSource> { IBOutlet UITableView* tabBarTable; } @property (strong, nonatomic) IBOutlet UIView *mainView; @property (strong, nonatomic) IBOutlet UITableView *tabBarTable; @property (nonatomic, strong) DataController *messageDataController; @end .m file: #import "FirstTabBarViewController.h" #import "DataController.h" @interface FirstTabBarViewController () @end @implementation FirstTabBarViewController @synthesize tabBarTable=_tabBarTable; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization } return self; } - (void)viewDidLoad { [super viewDidLoad]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } - (void)awakeFromNib { [super awakeFromNib]; self.messageDataController=[[DataController alloc] init]; } - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return 1; } - (NSInteger) tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{ return [self.messageDataController countOfList]; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"mainCell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil){ cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]; }; NSString *expenseAtIndex = [self.messageDataController objectInListAtIndex:indexPath.row]; [[cell textLabel] setText:expenseAtIndex]; return cell; } - (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath { // Return NO if you do not want the specified item to be editable. return NO; } @end This FirstTabBarViewController is loaded in the MainViewController with the following custom segue: #import "customTabBarSegue.h" #import "MainViewController.h" @implementation customTabBarSegue -(void) perform { MainViewController *src= (MainViewController *) [self sourceViewController]; UIViewController *dst=(UIViewController *)[self destinationViewController]; for (UIView *view in src.placeholderView.subviews){ [view removeFromSuperview]; } src.currentViewController =dst; [src.placeholderView addSubview:dst.view]; } @end The Datacontroller class is just a simple NSMutableArray containing strings. I am using ARC so I don't understand where the memory management error comes from. Does anybody have a clue? Any help much appreciated ;) Thanks!!

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  • Outlets buggy, causing crash?

    - by Moshe
    I've been having issues with making outlets and I was wondering if there is a difference and what the difference could be... EDIT: Using Outlets seem to be causeing SIGABRT errors... // // hebOmer.h // tizkorPush // // Created by Moshe -...- . // Copyright 2010 __MyCompanyName__. All rights reserved. // #import <UIKit/UIKit.h> #import "support.h" #import "hdate.h" @interface hebOmer : UIViewController{ IBOutlet UIScrollView * hebrewScrollView; UILabel *hebrewOmer; } @property (nonatomic, retain) UIScrollView * hebrewScrollView; @property (nonatomic, retain) IBOutlet UILabel *hebrewOmer; @end Creating an outlet to the UILabel is causing problems. The implementation seems fine. @synthesize and the memory release functions were called properly.

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  • How to conform to UITabBarControllerDelegate

    - by 4thSpace
    I have a tabbar based application and do the following to get a reference to the application delegate: MyAppDelegate *appDelegate = [[UIApplication sharedApplication] delegate]; Which then gives this warning: warning: type 'id <UIApplicationDelegate>' does not conform to the 'UITabBarControllerDelegate' My application delegate header looks like this: #import <UIKit/UIKit.h> @interface MyAppDelegate : NSObject <UIApplicationDelegate, UITabBarControllerDelegate> { UIWindow *window; UITabBarController *tabBarController; } @property (nonatomic, retain) IBOutlet UIWindow *window; @property (nonatomic, retain) IBOutlet UITabBarController *tabBarController; @end The only methods in the .m file are applicationDidFinishLaunching and dealloc. What else do I need to conform to the protocol?

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  • NavigationController pushViewController problems.

    - by Jacek
    Hello. I have created new a view controller in my project (ActivateController). I have added it to the interface of the parent view controller (PrefsViewController): #import <UIKit/UIKit.h> #import "ActivateController.h" @interface PrefsViewController : UIViewController <UITextFieldDelegate> { ActivateController *activateController; } -(IBAction)pressedActivate; @property(nonatomic,retain) IBOutlet ActivateController *activateController; @end I have also added it to parent's controller nib (and changed it type to ActivateController), and connected it to IBOutlet ActivateController. But still, when I perform (on pressedActivate): [self.navigationController pushViewController:activateController animated:YES]; Nothing happens. I have done it successfully many times before. What might be wrong? P.S. pressedActivate is executed for sure (I used NSLog to check).

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