thmodel_ios_model/model/Classes/Controllers/View/ModelTitleView.m

//
//  ModelTitleView.m
//  model
//
//  Created by JuYi on 2018/7/17.
//  Copyright © 2018年 Mine. All rights reserved.
//  选择按钮

#import "ModelTitleView.h"

@interface ModelTitleView()<UIScrollViewDelegate>
@property (nonatomic, strong) NSMutableArray *titleBettons;
@property (nonatomic, weak) UIScrollView *titleScrollView;
@property (nonatomic, weak) UIButton *selectBtn;
@property (nonatomic, strong) UIView *lineView;   //下划线
@end

@implementation ModelTitleView

- (NSMutableArray *)titleBettons {
    if (!_titleBettons) {
        _titleBettons = [NSMutableArray arrayWithCapacity:0];
    }
    return _titleBettons;
}

- (instancetype)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];
    if (self) {
        self.backgroundColor = [UIColor whiteColor];
        
    }
    return self;
}
- (void)setTitleArr:(NSArray *)titleArr {
    _titleArr = titleArr;
    [self setUpAllChildTitle];
}
/**
 添加字标题
 */
- (void)setUpAllChildTitle {
    CGFloat btnh = self.bounds.size.height;
    //
    UIScrollView *titleScrollView = [[UIScrollView alloc] init];
    titleScrollView.frame = CGRectMake(0, 0, ScreenWidth,btnh);
//    titleScrollView.delegate = self;
    [self addSubview:titleScrollView];
    self.titleScrollView = titleScrollView;
    //
    NSInteger count = self.titleArr.count;
    CGFloat btnx = 0;
    CGFloat btny = 0;
    CGFloat btnw = ScreenWidth / count;
    
    
    for (NSInteger i = 0; i < count; i++) {
        UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
        [btn setTitle:self.titleArr[i] forState:UIControlStateNormal];
        btnx = btnw * i;
        btn.frame = CGRectMake(btnx, btny, btnw, btnh);
        btn.tag = i;
        [btn setTitleColor:RGBValueColor(0x333333, 1.0) forState:UIControlStateNormal];
        btn.titleLabel.font = [UIFont systemFontOfSize:15];
        [btn addTarget:self action:@selector(btnClick:) forControlEvents:UIControlEventTouchUpInside];
        if (i == 0) {
            [self btnClick:btn];
        }
        [self.titleBettons addObject:btn];
        [self.titleScrollView addSubview:btn];
        
    }
//    CGFloat contentWidth = ScreenWidth < 375 ? 375 : ScreenWidth;
//    self.titleScrollView.contentSize = CGSizeMake(contentWidth, 0);
//    self.titleScrollView.showsHorizontalScrollIndicator = NO;
    
    self.lineView = [[UIView alloc] init];
    self.lineView.frame = CGRectMake(0, 0, 35, 2);
    self.lineView.backgroundColor = RGBValueColor(0xfe3f87, 1.0);
    UIButton *button = self.titleBettons[0];
    self.lineView.center = CGPointMake(button.center.x, btnh - 2);
    [self.titleScrollView addSubview:self.lineView];
    //
    self.longLineView = [[UIImageView alloc] initWithFrame:CGRectMake(0, btnh - 1, ScreenWidth, 1)];
    self.longLineView.image = [UIImage imageNamed:@"fengexian"];
    [self.titleScrollView addSubview:self.longLineView];
    
}

- (void)btnClick:(UIButton *)sender {
    [_selectBtn setTitleColor:RGBValueColor(0x333333, 1.0) forState:UIControlStateNormal];
    [sender setTitleColor:RGBValueColor(0xfe3f87, 1.0) forState:UIControlStateNormal];
    self.lineView.center = CGPointMake(sender.center.x, self.frame.size.height - 2);
    _selectBtn = sender;
    if (self.ModelTitleViewBlock) {
        self.ModelTitleViewBlock(sender.tag);
    }
}



@end