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POUIPickerView doesn't appear
 

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    <p>In a ViewController call by <strong>push</strong>, I try to programmatically display a ComboBox. This combobox implement UIPickerView delegate protocol and add a .xib file.</p> <p>When i run the app, i can see my combobox on the screen, but when i click on it, nothing append. Normally the pickerview will be displayed.</p> <p>What i don't understand, is in another viewcontroller call <strong>modal</strong> it works fine</p> <pre><code>// // ComboBox.h // #import &lt;UIKit/UIKit.h&gt; @interface ComboBox : UIViewController&lt;UIPickerViewDelegate, UIPickerViewDataSource, UITextFieldDelegate&gt; { UIPickerView* pickerView; IBOutlet UITextField* textField; NSMutableArray *dataArray; } -(void) setComboData:(NSMutableArray*) data; //set the picker view items -(void) setPlaceholder:(NSString*) label; @property (retain, nonatomic) NSString* selectedText; //the UITextField text @property (retain, nonatomic) IBOutlet UITextField* textField; //the UITextField @end // // ComboBox.m // #import "ComboBox.h" @implementation ComboBox @synthesize selectedText; @synthesize textField; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { return [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; } #pragma mark - View lifecycle - (void)viewDidLoad { [super viewDidLoad]; } - (void)viewDidUnload { [super viewDidUnload]; } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { return (interfaceOrientation == UIInterfaceOrientationPortrait); } //-- UIPickerViewDelegate, UIPickerViewDataSource - (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView; { return 1; } - (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component { textField.text = [dataArray objectAtIndex:row]; selectedText = textField.text; } - (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component; { return [dataArray count]; } - (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component; { return [dataArray objectAtIndex:row]; } //-- ComboBox -(void) setComboData:(NSMutableArray*) data { dataArray = data; } -(void) setPlaceholder:(NSString *)label { textField.placeholder = label; } -(void)doneClicked:(id) sender { [textField resignFirstResponder]; //hides the pickerView } - (IBAction)showPicker:(id)sender { pickerView = [[UIPickerView alloc] init]; pickerView.showsSelectionIndicator = YES; pickerView.dataSource = self; pickerView.delegate = self; UIToolbar* toolbar = [[UIToolbar alloc] init]; toolbar.barStyle = UIBarStyleBlackTranslucent; [toolbar sizeToFit]; //to make the done button aligned to the right UIBarButtonItem *flexibleSpaceLeft = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil]; UIBarButtonItem* doneButton = [[UIBarButtonItem alloc] initWithTitle:@"Done" style:UIBarButtonItemStyleDone target:self action:@selector(doneClicked:)]; [toolbar setItems:[NSArray arrayWithObjects:flexibleSpaceLeft, doneButton, nil]]; //custom input view textField.inputView = pickerView; textField.inputAccessoryView = toolbar; } - (BOOL)textFieldShouldBeginEditing:(UITextField *)aTextField { [self showPicker:aTextField]; return YES; } @end </code></pre> <p>the viewdidload of my viewcontroller</p> <pre><code>- (void)viewDidLoad { [super viewDidLoad]; NSMutableArray* ServeurArray = [[NSMutableArray alloc] init]; [ServeurArray addObject:@"1"]; [ServeurArray addObject:@"2"]; [ServeurArray addObject:@"3"]; comboServeur = [[ComboBox alloc] init]; [comboServeur setComboData:ServeurArray]; //Assign the array to ComboBox comboServeur.view.frame = CGRectMake(95, 220, 130, 31); //ComboBox location and size (x,y,width,height) [self.view addSubview:comboServeur.view]; } </code></pre> <p>thx for your answers</p>
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    1. COpicker delegate methods are calling or not once check with break points.
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    2. COthe method showPicker which is connect to the UITextField isn't call when i clic on
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    3. CO@Nagasaki: Can you please improve your question?
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      1. USMeera
 

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