多个TableView的练习

效果图:

左边图片的代码:

//
//  SecViewController.m
//  UI__多个TableView练习
//
//  Created by dllo on 16/3/17.
//  Copyright © 2016年 dllo. All rights reserved.
//

#import "SecViewController.h"

@interface SecViewController ()
<
    UITableViewDataSource,
    UITableViewDelegate
>
@property (nonatomic, retain) UITableView *tableView;
@property (nonatomic, retain) NSMutableArray *proArr;
@property (nonatomic, retain) NSMutableArray *cityArr;
@end

@implementation SecViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.

    [self createData];
    [self createView];

}
// 加载界面函数
- (void)createView {

    self.tableView = [[UITableView alloc] initWithFrame:self.view.frame style:UITableViewStylePlain];
    [self.view addSubview:self.tableView];
    [_tableView release];
    self.tableView.delegate = self;
    self.tableView.dataSource = self;
    [self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:NSStringFromClass([UITableViewCell class])];

}
// 返回区(省)的个数
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {

    return self.proArr.count;
}
//  返回各个section的省名
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
    return self.proArr[section][@"proName"];
}
// 返回每个section的row的数量
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    NSDictionary *proDic = self.proArr[section];
    NSArray *cityArr = proDic[@"cityArr"];
    return  cityArr.count;
}
// 将市名显示在row当中
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:NSStringFromClass([UITableViewCell class]) forIndexPath:indexPath];
    NSDictionary *proDic = self.proArr[indexPath.section];//indepath.section返回indexpath的section
    NSArray *cityArr = proDic[@"cityArr"];
    cell.textLabel.text = cityArr[indexPath.row][@"cityName"];
    return cell;
}
// 一个返回UIView的对section条进行增加控件的方法
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section {
    UIView *view = [[UIView alloc] initWithFrame:CGRectMake(, , self.view.frame.size.width, )];
    view.backgroundColor = [UIColor cyanColor];
    //写"更多"的按钮
    UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(, , , )];
    //写有省名的标签
    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(, , , )];
    [label setText:self.proArr[section][@"proName"]];
   // label.backgroundColor = [UIColor whiteColor];
    [view addSubview:label];
    [label release];
    //button.backgroundColor = [UIColor whiteColor];
    [view addSubview:button];
    [button setTitle:@"更多" forState:];
    [button release];
    return view;
}// 加载数据
- (void)createData {
    //
    NSString *path = [[NSBundle mainBundle] pathForResource:@"area副" ofType:@"txt"];
    // 根据路径产生相应的字符串
    NSString *str = [NSString stringWithContentsOfFile:path encoding:NSUTF8StringEncoding error:nil];
    // 对字符串逐行进行切割
    NSArray *strArr = [str componentsSeparatedByString:@"\n"];
    self.proArr = [NSMutableArray array];
    // 将数据解析成JSON数据
    for (NSString *temp in strArr) {
        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];
        }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{
            NSMutableDictionary *proDic = [self.proArr lastObject];
            NSMutableArray *cityArr = proDic[@"cityArr"];
            NSMutableDictionary *cityDic = [cityArr lastObject];
            NSMutableArray *zoneArr = cityDic[@"zoneArr"];
            [zoneArr addObject:temp];
        }
    }
    NSLog(@"%@", self.proArr);

}
// 显示侧边省名第一个汉字的方法(索引)
- (NSArray<NSString *> *)sectionIndexTitlesForTableView:(UITableView *)tableView {
    NSMutableArray *array = [NSMutableArray array];
    //将字符串进行截取放到数组中
    for (int i  = ; i < ; i++) {
    NSString *string = self.proArr[i][@"proName"];
    [array addObject:[string substringToIndex:]];
    }
    //第二种方法 : 对数组进行遍历然后放到数组中
//    for (NSDictionary *dict in self.proArr) {
//       [array addObject:[dict[@"proName"] substringToIndex:1]];
//    }
     return array;
}
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end

右边图片的代码:

//
//  RootViewController.m
//  UI__多个TableView练习
//
//  Created by dllo on 16/3/17.
//  Copyright © 2016年 dllo. All rights reserved.
//

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

@implementation RootViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    //下面是三个tableView的初始化和代理设置
    self.proTableView = [[UITableView alloc] initWithFrame:CGRectMake(, , WIDTH / , HEIGHT)];
    self.proTableView.backgroundColor = [UIColor blueColor];
    [self.view addSubview:self.proTableView];
    [_proTableView release];

    self.cityTableView = [[UITableView alloc] initWithFrame:CGRectMake(WIDTH / , , WIDTH / , HEIGHT - )];
    self.cityTableView.backgroundColor = [UIColor cyanColor];
    [self.view addSubview:self.cityTableView ];
    [_cityTableView release];

    self.zoneTableView = [[UITableView alloc] initWithFrame:CGRectMake(WIDTH /  * , , WIDTH / , HEIGHT - )];
    self.zoneTableView.backgroundColor = [UIColor redColor];
    [self.view addSubview:self.zoneTableView];
    [_zoneTableView release];
    [self.proTableView registerClass:[UITableViewCell class] forCellReuseIdentifier:NSStringFromClass([UITableViewCell class])];
    [self.cityTableView registerClass:[UITableViewCell class] forCellReuseIdentifier:NSStringFromClass([UITableViewCell class])];
    [self.zoneTableView registerClass:[UITableViewCell class] forCellReuseIdentifier:NSStringFromClass([UITableViewCell class])];

    self.proTableView.delegate = self;
    self.proTableView.dataSource = self;

    self.cityTableView.dataSource = self;
    self.cityTableView.delegate = self;

    self.zoneTableView.delegate = self;
    self.zoneTableView.dataSource = self;

    NSString *path = [[NSBundle mainBundle] pathForResource:@"area副" ofType:@"txt"];
    // 根据路径产生相应的字符串
    NSString *str = [NSString stringWithContentsOfFile:path encoding:NSUTF8StringEncoding error:nil];
    // 对字符串逐行进行切割
    NSArray *strArr = [str componentsSeparatedByString:@"\n"];
    self.proArr = [NSMutableArray array];
    //对数据进行解析成Json数据
    for (NSString *temp in strArr) {
        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];
        }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{
            NSMutableDictionary *proDic = [self.proArr lastObject];
            NSMutableArray *cityArr = proDic[@"cityArr"];
            NSMutableDictionary *cityDic = [cityArr lastObject];
            NSMutableArray *zoneArr = cityDic[@"zoneArr"];
            [zoneArr addObject:temp];
        }
    }
    NSLog(@"%@", self.proArr);
}

- (void)dealloc {
    [_zoneTableView release];
    [_cityTableView release];
    [_proArr release];
    [_proTableView release];
    [super dealloc];

}

// 返回第section个区的row的个数
- (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;
    }

}
// TableView的cell的加载方法
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    if (tableView == self.proTableView) {//当tableView是省时
    UITableViewCell *cell = [self.proTableView dequeueReusableCellWithIdentifier:NSStringFromClass([UITableViewCell class]) forIndexPath:indexPath];
    cell.textLabel.text = self.proArr[indexPath.row][@"proName"];
    return cell;
    } else if (tableView == self.cityTableView) {//当tableView是市时
        UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:NSStringFromClass([UITableViewCell class]) forIndexPath:indexPath];
        cell.textLabel.text = self.cityArr[indexPath.row][@"cityName"];
        return cell;
    } else {//当tableView是区名时
        UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:NSStringFromClass([UITableViewCell class]) forIndexPath:indexPath];
        cell.textLabel.text = self.zoneArr[indexPath.row];
        return cell;
    }

}
//TableView的点击方法
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    if (tableView == self.proTableView) {//当点击省名时
        self.cityArr = self.proArr[indexPath.row][@"cityArr"];
        [self.cityTableView reloadData];
    } else if (tableView == self.cityTableView) {//点击市名时
        self.zoneArr = self.cityArr[indexPath.row][@"zoneArr"];
        [self.zoneTableView reloadData];
    }
}
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end