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POhow to solve uipickerview
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copied!<p>I have a problem with my pickerview where by clicking on the textfield it shows an empty uipickerview. I have 3 textfield where by clicking on each textfield there will be different array for each one. Here's the code:</p> <pre><code>- (void)viewDidLoad { [super viewDidLoad]; tbMode.inputView = pickerView; tbWalkDist.inputView = pickerView; tbRouteOpt.inputView = pickerView; } -(BOOL)textFieldShouldReturn:(UITextField *)textField { [textField resignFirstResponder]; return YES; } -(void)textFieldDidBeginEditing:(UITextField*)textField; { modeArray = [[NSMutableArray alloc] init]; if(textField.tag==1){ [modeArray addObject:@" A "]; [modeArray addObject:@" B "]; pickerView.hidden = NO; } else{ if(textField.tag==2){ [modeArray addObject:@" 300 "]; [modeArray addObject:@" 400 "]; [modeArray addObject:@" 500 "]; pickerView.hidden = NO; } else{ if(textField.tag==3){ [modeArray addObject:@" cheapest "]; [modeArray addObject:@" fastest "]; pickerView.hidden = NO; } else{ pickerView.hidden=YES; } } } } - (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView; { return 1; } - (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent: (NSInteger)component { tbMode.text = [modeArray objectAtIndex:row]; } - (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component; { return [modeArray count]; } - (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component; { return [modeArray objectAtIndex:row]; } </code></pre> <p>pls help! where did i got wrong? is it possible that this method <code>-(void)textFieldDidBeginEditing:(UITextField*)textField;</code> is not called? thanks</p> <p>edit* i miss out these 3 line of line which is for each textfield which use to call that method in <code>viewDidLoad</code></p> <pre><code>tbMode.delegate = self; tbWalkDist.delegate = self; tbRouteOpt.delegate = self; </code></pre> <p>But I'm still getting an empty picker view. how can i add these <code>NSMutableArray</code> into the the picker view *add in <code>[pickerView reloadAllComponents];</code> the picker will display the values :)</p>

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