HitView

#import "panelView.h"

@implementation panelView

- (instancetype)initWithFrame:(CGRect)frame {

    self = [superinitWithFrame:frame];

    if (self) {

        UIButton *roundBtn = [UIButtonbuttonWithType:UIButtonTypeCustom];

        roundBtn.frame =CGRectMake(self.frame.size.width / 2 - 30, -30,60, 60);

        roundBtn.backgroundColor = [UIColorredColor];

        roundBtn.layer.cornerRadius =30;

        roundBtn.tag =10086;

        [roundBtn addTarget:self action:@selector(onBtnPressed:)

           forControlEvents:UIControlEventTouchUpInside];

        [selfaddSubview:roundBtn];

        

        UIButton *leftBtn = [UIButtonbuttonWithType:UIButtonTypeCustom];

        leftBtn.frame =CGRectMake(0,15, 30,30);

        leftBtn.backgroundColor = [UIColorblueColor];

        leftBtn.tag =10087;

        [leftBtn addTarget:self action:@selector(onBtnPressed:)

          forControlEvents:UIControlEventTouchUpInside];

        [selfaddSubview:leftBtn];

        

        UIButton *rightBtn = [UIButtonbuttonWithType:UIButtonTypeCustom];

        rightBtn.frame =CGRectMake(self.frame.size.width - 30, 15,30, 30);

        rightBtn.backgroundColor = [UIColoryellowColor];

        rightBtn.tag =10088;

        [rightBtn addTarget:self action:@selector(onBtnPressed:)

           forControlEvents:UIControlEventTouchUpInside];

        [selfaddSubview:rightBtn];

    }

    returnself;

}

- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event {

    UIView *hitView =nil;

    //NSLog(@"point:%@", NSStringFromCGPoint(point));

    UIButton *roundBtn = (UIButton *)[selfviewWithTag:10086];

    UIButton *leftBtn = (UIButton *)[selfviewWithTag:10087];

    UIButton *rightBtn = (UIButton *)[selfviewWithTag:10088];

    BOOL pointInRound = [selftouchPointInsideCircle:roundBtn.center radius:30 targetPoint:point];

    if (pointInRound) {

        hitView = roundBtn;

    } elseif(CGRectContainsPoint(leftBtn.frame, point)) {

        hitView  = leftBtn;

    } elseif(CGRectContainsPoint(rightBtn.frame, point)) {

        hitView = rightBtn;

    } else {

        hitView = self;

    }

    return hitView;

}

- (BOOL)touchPointInsideCircle:(CGPoint)center radius:(CGFloat)radius targetPoint:(CGPoint)point

{

    CGFloat dist =sqrtf((point.x - center.x) * (point.x - center.x) +

                         (point.y - center.y) * (point.y - center.y));

    return (dist <= radius);

}

- (void)onBtnPressed:(id)sender {

    UIButton *btn = (UIButton *)sender;

    NSLog(@"btn tag:%ld", btn.tag);

}

@end