【代码笔记】iOS-点击城市中的tableView跳转到旅游景点的tableView，下面会有“显示”更多。

一，效果图。

二，工程图。

三，代码。

RootViewController.h

#import <UIKit/UIKit.h>

@interface RootViewController : UIViewController
<UITableViewDelegate,UITableViewDataSource>
{
    UITableView * _tableView;
    NSMutableArray * provinceArray;
}

@end

RootViewController.m

#import "RootViewController.h"
//详细页面
#import "DetailViewController.h"

@interface RootViewController ()

@end

@implementation RootViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

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

     provinceArray = [[NSMutableArray alloc] initWithObjects:@"北京", @"上海", @"云南",@"四川",@"海南", @"江苏", @"香港", @"澳门", @"西藏", nil];

    _tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, 320, 380) style:UITableViewStyleGrouped];
    _tableView.delegate = self;
    _tableView.dataSource = self;
    [self.view addSubview:_tableView];
}
#pragma -mark -UITableViewDelegate
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell* cell = [tableView dequeueReusableCellWithIdentifier:@"ID"];
    if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:@"ID"] ;
    }
    cell.textLabel.text = [provinceArray objectAtIndex:indexPath.row];
    cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;

    return cell;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return 9;
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
    return 60;
}

//点击进入下一页
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

    DetailViewController* svc = [[DetailViewController alloc] init];
    svc.title = [NSString stringWithFormat:@"%@",[provinceArray objectAtIndex:indexPath.row]];
    [self.navigationController pushViewController:svc animated:NO];
}

- (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

DetailViewController.h

#import <UIKit/UIKit.h>

@interface DetailViewController : UIViewController
<UITableViewDelegate,UITableViewDataSource>
{
    UITableView* _tableView;
    NSArray* provinceArr;
    NSArray* cityArray;
    NSString* cityName;
    NSMutableArray* ditailName;
    NSString* ditialPlaceName;
    NSDictionary *dicForPlist;

}
@end

DetailViewController.m

#import "DetailViewController.h"

static int rowNumber;

@interface DetailViewController ()

@end

@implementation DetailViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

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

    //传过来的城市名字
    cityName = self.title;
    //tableView显示行数
    rowNumber = 20;

    //tableView
    _tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, 320, 460 ) style:UITableViewStyleGrouped];
    _tableView.delegate = self;
    _tableView.dataSource = self;
    [self.view addSubview:_tableView];

    NSMutableArray* cityComparearr = [[NSMutableArray alloc] init];
    ditailName = [[NSMutableArray alloc] init];

    //城市的plist文件
    dicForPlist = [NSDictionary dictionaryWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"cityName" ofType:@"plist"]];
   //北京所有数据
    provinceArr = [dicForPlist objectForKey:cityName];

    for (int j = 0; j < [provinceArr count]; j++) {//遍历省的所有数据

        cityArray = [provinceArr objectAtIndex:j];//取出每一个小数组

        for (int i = 0; i < [cityArray count]; i++) {//遍历小数组

            NSString* strstr = [cityArray objectAtIndex:i]; //得到小数组内容

            if ([strstr isEqualToString:cityName] && j + 1 < [provinceArr count]) {

                cityComparearr = [provinceArr objectAtIndex:j + 1];

                if (![[cityArray objectAtIndex:i + 1] isEqualToString:[cityComparearr objectAtIndex:i + 1]]) {

                    [ditailName addObject:[cityArray objectAtIndex:i + 1]];

                } else {

                }
            }

            if ([strstr isEqualToString:cityName] && j + 1 == [provinceArr count]){
                NSLog(@"last one?");
            }

        }
    }

}
#pragma -mark -UITableViewDelegate

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    UITableViewCell* cell = [tableView dequeueReusableCellWithIdentifier:@"ID"];
    if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:@"ID"];
    }

    if (indexPath.section == 0) {
        cell.textLabel.text = [ditailName objectAtIndex:indexPath.row];
    }

    if (indexPath.section == 1) {
        cell.textLabel.text = @"显示更多";
        cell.textLabel.textAlignment = NSTextAlignmentCenter;
    }

    return cell;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    if (section == 0) {
        if (rowNumber > [ditailName count]) {//显示到最多的时候
            return [ditailName count];
        }
        return rowNumber;
    } else
        return 1;
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return 2;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    if (indexPath.section == 1) {
        rowNumber += 20;
        [tableView reloadData];
    } else {
        NSLog(@"---跳转到另外一个页面----");
    }
}

- (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