wodeshebao-iOS/我的社保/Public/ChooseCityView/SPSBChooseCityNavigationView.m

//
//  SPSBChooseCityNavigationView.m
//  我的社保
//
//  Created by shanp on 2021/5/20.
//

#import "SPSBChooseCityNavigationView.h"
#import "SPSBUIGeneralHeader.h"

#define spsb_chooseCityNavigationHeight ((jxh_screenHeight() - 180) > 400 ? 400 : (jxh_screenHeight() - 180))
#define spsb_chooseCityNavigationViewLabelTag 3000
#define spsb_chooseCityNavigationLabelTag 10000

@interface SPSBChooseCityNavigationView () {
    NSInteger _count;
    CGFloat _navigationHeight;
}

@end

@implementation SPSBChooseCityNavigationView

- (instancetype)initWithArray:(NSArray *)array {
    self = [super init];
    if (!self) return nil;
    _count = array.count;
    _navigationHeight = 15 * _count;
    _navigationHeight = _navigationHeight < (jxh_screenHeight() - 180) ? _navigationHeight : jxh_screenHeight() - 180;
    self.backgroundColor = [UIColor whiteColor];
    UILabel *tempLabel = nil;
    for (NSInteger i = 0; i < _count; i ++) {
        UILabel *label = [UILabel convenienceWithFont:spsb_semiboldFont(11) text:[array objectAtIndex:i] textColor:spsb_3296FB_color() textAlignment:NSTextAlignmentCenter];
        label.tag = spsb_chooseCityNavigationViewLabelTag + i;
        [self addSubview:label];
        [label makeConstraints:^(JXHConstraintMaker *make) {
            if (tempLabel) {
                make.top.equalTo(tempLabel.bottom);
            } else {
                make.top.equalTo((jxh_screenHeight() - self->_navigationHeight - 64) / 2);
            }
            make.leading.equalTo(0);
            make.trailing.equalTo(0);
            make.height.equalTo(self->_navigationHeight / self->_count);
        }];
        tempLabel = label;
    }
    return self;
}

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    UITouch *touch = [touches anyObject];
    CGPoint touchPoint = [touch locationInView:self];
    if (touchPoint.y > (jxh_screenHeight() - _navigationHeight - 64) / 2
        && touchPoint.y < (jxh_screenHeight() - _navigationHeight - 64) / 2 + _navigationHeight) {
        NSInteger temp = (touchPoint.y - (jxh_screenHeight() - _navigationHeight - 64) / 2) / (_navigationHeight / _count);
        if (temp > _count - 1) {
            self.spsb_section = _count - 1;
        } else {
            self.spsb_section = temp;
        }
        [self addNavigationLabel];
    }
}

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
    UITouch *touch = [touches anyObject];
    CGPoint touchPoint = [touch locationInView:self];
    if (touchPoint.y <= (jxh_screenHeight() - _navigationHeight - 64) / 2) {
        self.spsb_section = 0;
    } else if (touchPoint.y >= (jxh_screenHeight() - _navigationHeight - 64) / 2 + _navigationHeight) {
        self.spsb_section = _count - 1;
    } else {
        NSInteger temp = (touchPoint.y - (jxh_screenHeight() - _navigationHeight - 64) / 2) / (_navigationHeight / _count);
        if (temp > _count - 1) {
            self.spsb_section = _count - 1;
        } else {
            self.spsb_section = temp;
        }
    }
    UILabel *navigationLabel = (UILabel *)[self viewWithTag:spsb_chooseCityNavigationLabelTag];
    if (navigationLabel) {
        navigationLabel.text = ((UILabel *)[self viewWithTag:spsb_chooseCityNavigationViewLabelTag + self.spsb_section]).text;
    } else {
        [self addNavigationLabel];
    }
}

- (void)touchesEnded:(NSSet *)touches
           withEvent:(UIEvent *)event {
    UILabel *navigationLabel = (UILabel *)[self viewWithTag:spsb_chooseCityNavigationLabelTag];
    [navigationLabel removeFromSuperview];
}

//添加导航标示
- (void)addNavigationLabel {
    UILabel *navigationLabel = [UILabel convenienceWithFont:spsb_font(30) text:((UILabel *)[self viewWithTag:spsb_chooseCityNavigationViewLabelTag + self.spsb_section]).text textColor:spsb_FFFFFF_color(1.f) textAlignment:NSTextAlignmentCenter];
    navigationLabel.tag = spsb_chooseCityNavigationLabelTag;
    [navigationLabel setLayerCornerRadius:5 clipToBounds:true];
    
    navigationLabel.backgroundColor = spsb_000000_color(0.8);
    [self addSubview:navigationLabel];
    
    [navigationLabel makeConstraints:^(JXHConstraintMaker *make) {
        make.centerX.equalTo(navigationLabel.superview.superview.centerX);
        make.centerY.equalTo(navigationLabel.superview.superview.centerY).offset(-64 / 2);
        make.size.equalTo(CGSizeMake(80, 80));
    }];
}

@end

#undef spsb_chooseCityNavigationHeight
#undef spsb_chooseCityNavigationViewLabelTag
#undef spsb_chooseCityNavigationLabelTag