iOS 开发，类似于流布局的按钮组

说实话，上面的效果用 Flutter 一个组件就完活了。iOS 原生的话还是得多敲几句代码的！话不多说，代码如下：

//
//  CC_SelProView.m
//  ScoPro
//
//  Created by CC520 on 2024/1/17.
//

#import "CC_SelProView.h"

@implementation CC_SelProView

-(instancetype)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self){
        [self setUI];
    }
    return self;
}

-(void)setUI{
    UILabel *lab = [[UILabel alloc]init];
    lab.text = @"定位/最近访问";
    lab.font = FontSize(15);
    lab.textColor = RGBCOLOR(156, 156, 156);
    [self addSubview:lab];
    [lab mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.mas_equalTo(20);
        make.left.mas_equalTo(15);
    }];
    
    UIView *locationView = [[UIView alloc]initWithFrame:CGRectMake(0, 45, SCREEN_WIDTH, 50)];
    [self addSubview:locationView];
    
    NSMutableArray *titleAry = [[NSMutableArray alloc]initWithObjects:@"河南省", @"黑龙江省", nil];
    for (int i = 0; i < titleAry.count; i ++) {
        CGFloat margin = 10;
        CGFloat width = (SCREEN_WIDTH - margin * 5)/4;
        CGFloat height = 35;
        
        UIButton *button = [hTools createButtonWithImg:nil title:titleAry[i] titleColor:UIColor.blackColor font:15 backgroundColor:UIColor.whiteColor isClip:YES cornerRadius:5];
        button.layer.borderColor = RGBCOLOR(195, 195, 195).CGColor;
        button.layer.borderWidth = 1.0f;
        button.frame = CGRectMake(15 + (margin + width)*i, 0, width, height);
        [locationView addSubview:button];
        
        if (i == 0){
            [button setImage:[UIImage imageNamed:@"ze-location"] forState:UIControlStateNormal];
            button.imageEdgeInsets = UIEdgeInsetsMake(0, -5, 0, 0);
        }
    }
}

@end

零散知识点，仅做记录哈！