ios - How to change the color of UIPickerView Selector

Question

I am having a UIPicker, I want to change the color of the selector. Is it possible to change the color of the selector?

Answer 1

Maybe it's not fully fits for answer to this question, in iOS 7 and later you can customize color by this way:

In the delegate methods

- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view

- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component

add following

[[pickerView.subviews objectAtIndex:1] setBackgroundColor:NEEDED_COLOR];
[[pickerView.subviews objectAtIndex:2] setBackgroundColor:NEEDED_COLOR];

UPDATE

Previous code works, but so-so. Here simple subclasses for UIPickerView

Swift:

class RDPickerView: UIPickerView
{
    @IBInspectable var selectorColor: UIColor? = nil

    override func didAddSubview(subview: UIView) {
        super.didAddSubview(subview)
        if let color = selectorColor
        {
            if subview.bounds.height <= 1.0
            {
                subview.backgroundColor = color
            }
        }

    }
}

Objective-C:

@interface RDPickerView : UIPickerView

@property (strong, nonatomic) IBInspectable UIColor *selectorColor;

@end

@implementation RDPickerView

- (void)didAddSubview:(UIView *)subview
{
    [subview didAddSubview:subview];
    if (self.selectorColor)
    {
        if (subview.bounds.size.height <= 1.0)
        {
            subview.backgroundColor = self.selectorColor;
        }
    }
}

@end

and you can set selector color directly in storyboard

Thanks to Ross Barbish - "With iOS 9.2 and XCode 7.2 released 12/8/2015, the height of this selection view is 0.666666666666667".

UPDATE:

It's fix for issue with iOS 10, not good but works. :/

class RDPickerView: UIPickerView
{
    @IBInspectable var selectorColor: UIColor? = nil

    override func didAddSubview(_ subview: UIView) {
        super.didAddSubview(subview)

        guard let color = selectorColor else {
            return
        }

        if subview.bounds.height <= 1.0
        {
            subview.backgroundColor = color
        }
    }

    override func didMoveToWindow() {
        super.didMoveToWindow()

        guard let color = selectorColor else {
            return
        }

        for subview in subviews {
            if subview.bounds.height <= 1.0
            {
                subview.backgroundColor = color
            }
        }
    }
}

Thanks Dmitry Klochkov, I'll try to find some better solution.