Vote Control

VoteControl.m

#import "VoteControl.h"

@interface _VoteControl : UIStepper @end

@implementation _VoteControl

- (instancetype)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];
    if (self) {
        self.wraps = YES;
        self.continuous = NO;
        [self setDecrementImage:[UIImage systemImageNamed:@"arrow.left"] forState:UIControlStateNormal];
        [self setIncrementImage:[UIImage systemImageNamed:@"arrow.right"] forState:UIControlStateNormal];
        
        self.translatesAutoresizingMaskIntoConstraints = NO;
        self.transform = CGAffineTransformRotate(self.transform, M_PI_2);
        
//        self.backgroundColor = UIColor.blueColor;
    }
    
    return self;
}

@end

@interface VoteControl ()
@property (nonatomic, readonly) _VoteControl *control;
@end

@implementation VoteControl

- (instancetype)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];
    if (self) {
        _control = [_VoteControl new];
        
        [self addSubview:_control];
//        self.backgroundColor = UIColor.greenColor;
        
        [NSLayoutConstraint activateConstraints:@[
            [_control.centerXAnchor constraintEqualToAnchor:self.centerXAnchor],
            [_control.centerYAnchor constraintEqualToAnchor:self.centerYAnchor],
            [self.widthAnchor constraintEqualToAnchor:_control.heightAnchor],
            [self.heightAnchor constraintEqualToAnchor:_control.widthAnchor],
        ]];
    }
    
    return self;
}

@end

Thanks /u/flying-insect!