Question

In my iPhone application I have a UIScrollView with several UITextFields.
Using BSKeyboardControls I have added Prev/Next/Done buttons to move between the fields. However, the focus on the selected field is not working, meaning that the text field is actually still under the keyboard although selected.
becomeFirstResponder is activated but just don’t set the focus.
Any ideas what might be wrong?
Thanks

In the H file

#import "BSKeyboardControls.h"
...
@interface AddClientViewController : BaseViewController<UIAlertViewDelegate, UIScrollViewDelegate, UIPickerViewDelegate, UIPickerViewDataSource, UITextFieldDelegate, UITextViewDelegate, BSKeyboardControlsDelegate>
...
@property (strong, nonatomic) IBOutlet UITextField *firstName;
@property (strong, nonatomic) IBOutlet UITextField *lastName;
@property (strong, nonatomic) IBOutlet UITextField *email;
@property (strong, nonatomic) IBOutlet UITextField *mobile;
@property (strong, nonatomic) IBOutlet UITextField *birthday;
@property (strong, nonatomic) IBOutlet UITextField *anniversary;
@property (strong, nonatomic) IBOutlet UITextField *street;
@property (strong, nonatomic) IBOutlet UITextField *city;
@property (strong, nonatomic) IBOutlet UITextField *state;
@property (strong, nonatomic) IBOutlet UITextField *zip;
@property (strong, nonatomic) IBOutlet UIScrollView *scrollView;

@property (nonatomic, strong) BSKeyboardControls *keyboardControls;
....

In M file

- (void)viewDidLoad
{
...
    NSArray *fields = @[ self.firstName, self.lastName,
    self.email, self.mobile,
    self.birthday, self.anniversary,
    self.street, self.city, self.state, self.zip];

    [self setKeyboardControls:[[BSKeyboardControls alloc] initWithFields:fields]];
    [self.keyboardControls setDelegate:self];
}

- (void)keyboardControlsDonePressed:(BSKeyboardControls *)keyboardControls
{
    [keyboardControls.activeField resignFirstResponder];
}
- (void)keyboardControls:(BSKeyboardControls *)keyboardControls directionPressed:(BSKeyboardControlsDirection)direction
{
    UIView *view = keyboardControls.activeField.superview.superview;
    [self.scrollView scrollRectToVisible:view.frame animated:YES];
}
- (void)keyboardControls:(BSKeyboardControls *)keyboardControls selectedField:(UIView *)field inDirection:(BSKeyboardControlsDirection)direction
{
    UIView *view = keyboardControls.activeField.superview.superview;
    [self.scrollView scrollRectToVisible:view.frame animated:YES];
}
- (void)textFieldDidBeginEditing:(UITextField *)textField
{
    [self.keyboardControls setActiveField:textField];
}
- (void)textViewDidBeginEditing:(UITextView *)textView
{
    [self.keyboardControls setActiveField:textView];
}

The setActiveField in BSKeyboardControls

- (void)setActiveField:(id)activeField
{
    if (activeField != _activeField)
    {
        if ([self.fields containsObject:activeField])
        {
            _activeField = activeField;

            if (![activeField isFirstResponder])
            {
                [activeField becomeFirstResponder];
            }

            [self updateSegmentedControlEnabledStates];
        }
    }
}

Answer 1

Since you’re using a UIScrollView with UITextFields, you can use the scrollRectToVisible method for the UIScrollview, in a method that’d be roughly like this:

-(void)textFieldDidBeginEditing:(UITextField *)textField
{
    [_myScrollView scrollRectToVisible:textField.frame animated:YES];
}

To do this, you’ll need to make sure that the UIViewController is the UITextFieldDelegate of each of the textfields in the scrollview. You could do this in the viewDidLoad method of your UIViewController:

[textField1 setDelegate:self];
[textField2 setDelegate:self];

…and so on