UI总结-多个tableView

如何在一个页面铺多个tableView,下面是对省市区(数据的格式是.TXT)的罗列,分别在三个tableView上显示,点击省显示对应省的市,点击市显示对应市的区,来看代码吧:

#import "ViewController.h"
#define WIDTH self.view.frame.size.width
#define HEIGHT self.view.frame.size.height
@interface ViewController ()<UITableViewDataSource,UITableViewDelegate>
@property(nonatomic,retain)NSMutableArray *proArr;
@property(nonatomic,retain)NSMutableArray *cityArr;
@property(nonatomic,retain)NSMutableArray *zoneArr;
@property(nonatomic,retain)UITableView *proTableView;
@property(nonatomic,retain)UITableView *cityTableView;
@property(nonatomic,retain)UITableView *zoneTableView;
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    self.view.backgroundColor = [UIColor whiteColor];
    [self creatView];
    [self creatData];
}
-(void)creatView{
    //automaticallyAdjustsScrollViewInsets根据按所在界面的status bar，navigationbar，与tabbar的高度，自动调整scrollview的 inset,设置为no，不让viewController调整，我们自己修改布局即可
    self.automaticallyAdjustsScrollViewInsets = YES;
    //省对应的tableView
    self.proTableView = [[UITableView alloc]initWithFrame:CGRectMake(0, 0, WIDTH / 3, HEIGHT) style:UITableViewStylePlain];
    self.proTableView.dataSource = self;
    self.proTableView.delegate = self;
    [self.view addSubview:self.proTableView];
    [self.proTableView registerClass:[UITableViewCell class] forCellReuseIdentifier:NSStringFromClass([UITableViewCell class])];
    //城市对应的tableView
    self.cityTableView = [[UITableView alloc]initWithFrame:CGRectMake(WIDTH / 3, 64, WIDTH / 3 , HEIGHT - 64) style:UITableViewStylePlain];
    self.cityTableView.dataSource = self;
    self.cityTableView.delegate = self;
    [self.view addSubview:self.cityTableView];
    [self.cityTableView registerClass:[UITableViewCell class] forCellReuseIdentifier:NSStringFromClass([UITableViewCell class])];
    //区对应的tableView
    self.zoneTableView = [[UITableView alloc]initWithFrame:CGRectMake(WIDTH / 3 * 2, 64, WIDTH / 3, HEIGHT - 64) style:UITableViewStylePlain];
    self.zoneTableView.dataSource = self;
    self.zoneTableView.delegate = self;
    [self.view addSubview:self.zoneTableView];
    [self.zoneTableView registerClass:[UITableViewCell class] forCellReuseIdentifier:NSStringFromClass([UITableViewCell class])];
}
-(void)creatData{
    //接受数据
    //找文件的路径
    NSString *path = @"/Users/dllo/Desktop/UI总结/多个tableView的练习/多个tableView的练习/area.txt";
    //将.txt文件的内容全部赋值给字符串str
    NSString *str = [NSString stringWithContentsOfFile:path encoding:NSUTF8StringEncoding error:nil];
    //把str字符串按换行截成字符串赋值给数组
    NSArray *strArr = [str componentsSeparatedByString:@"\n"];
    self.proArr = [NSMutableArray array];
    //对数组进行遍历
    for (NSString *temp in strArr) {
        //判断该行字符串是否是有一个空格开头
        if (![temp hasPrefix:@" "]) {
            NSMutableDictionary *proDic = [NSMutableDictionary dictionary];
            NSMutableArray *cityArr = [NSMutableArray array];
            [proDic setObject:temp forKey:@"proName"];
            [proDic setObject:cityArr forKey:@"cityArr"];
            [self.proArr addObject:proDic];
            //判断该行字符串以两个空格开头并且不是四个空格开头
        }else if ([temp hasPrefix:@"  "] && ![temp hasPrefix:@"    "]){
            NSMutableDictionary *cityDic = [NSMutableDictionary dictionary];
            [cityDic setObject:temp forKey:@"cityName"];
            NSMutableArray *zoneArr = [NSMutableArray array];
            [cityDic setObject:zoneArr forKey:@"zoneArr"];
            NSMutableDictionary *proDic = [self.proArr lastObject];
            NSMutableArray *cityArr = proDic[@"cityArr"];
            [cityArr addObject:cityDic];
        }else{
            //剩下的当然是四个空格开头的喽
            NSMutableDictionary *proDic = [self.proArr lastObject];
            NSMutableArray *cityArr = proDic[@"cityArr"];
            NSMutableDictionary *cityDic = [cityArr lastObject];
            NSMutableArray *zoneArr = cityDic[@"zoneArr"];
            [zoneArr addObject:temp];
        }
    }
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
    //点击方法:点击省的tableView,对应省的市的tableView加载
    //点击市的tableView,对应市的区的tableView加载
    if (tableView == self.proTableView) {
        self.cityArr = self.proArr[indexPath.row][@"cityArr"];
        [self.cityTableView reloadData];
    }else if(tableView == self.cityTableView){
        self.zoneArr = self.cityArr[indexPath.row][@"zoneArr"];
        [self.zoneTableView reloadData];
    }
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
    if (tableView == self.proTableView) {
        return self.proArr.count;
    }else if (tableView == self.cityTableView){
        return self.cityArr.count;
    }else{
        return  self.zoneArr.count;
    }
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
    if (tableView == self.proTableView) {
        UITableViewCell *cell = [self.proTableView dequeueReusableCellWithIdentifier:NSStringFromClass([UITableViewCell class])];
        cell.textLabel.text = self.proArr[indexPath.row][@"proName"];
        return cell;
    }else if (tableView == self.cityTableView){
        UITableViewCell *cell = [self.cityTableView dequeueReusableCellWithIdentifier:NSStringFromClass([UITableViewCell class]) forIndexPath:indexPath];
        cell.textLabel.text = self.cityArr[indexPath.row][@"cityName"];
        return cell;
    }else {
        UITableViewCell *cell = [self.zoneTableView dequeueReusableCellWithIdentifier:NSStringFromClass([UITableViewCell class]) forIndexPath:indexPath];
        cell.textLabel.text = self.zoneArr[indexPath.row];
        return cell;
    }
    
}

运行结果如下图:

1.gif