UI10_3个tableView的省市区联动

#import <UIKit/UIKit.h>

@interface AppDelegate : UIResponder <UIApplicationDelegate>

@property (strong, nonatomic) UIWindow *window;

@end

#import "AppDelegate.h"
#import "RootViewController.h"

@interface AppDelegate ()

@end

@implementation AppDelegate
- (void)dealloc
{
[_window release];
[super dealloc];
}

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];

[_window release];
RootViewController *rootVC = [[RootViewController alloc] init];
UINavigationController *naVC = [[UINavigationController alloc] initWithRootViewController:rootVC];
self.window.rootViewController = naVC;
[rootVC release];
[naVC release];

return YES;
}

#import <UIKit/UIKit.h>

@interface RootViewController : UIViewController

@end

#import "RootViewController.h"
#define WIDTH self.view.frame.size.width
#define HEIGHT self.view.frame.size.height

@interface RootViewController ()<UITableViewDataSource, UITableViewDelegate>
@property(nonatomic, retain)NSMutableArray *provinceArr;
@property(nonatomic, retain)NSMutableArray *cityArr;
@property(nonatomic, retain)NSMutableArray *zoneArr;
@property(nonatomic, retain)UITableView *provinceTableView;
@property(nonatomic, retain)UITableView *cityTableView;
@property(nonatomic, retain)UITableView *zoneTableView;

@end

@implementation RootViewController
- (void)dealloc
{

[_provinceArr release];
[_cityArr release];
[_zoneArr release];
[_provinceTableView release];
[_cityTableView release];
[_zoneTableView release];
[super dealloc];
}
- (instancetype)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
[self createData];
}
return self;
}
- (void)createData {
NSString *path = @"/Users/dllo/Desktop/青山流云/UI/UI10/UI10_3个tableView省市区联动/UI10_3个tableView省市区联动/area(省市区版).txt";
NSString *str = [NSString stringWithContentsOfFile:path encoding:NSUTF8StringEncoding error:nil];
NSArray *strArr = [str componentsSeparatedByString:@"\n"];
self.provinceArr = [NSMutableArray array];

for (NSString *temp in strArr) {
if (![temp hasPrefix:@"  "]) {
NSMutableDictionary *proDic = [NSMutableDictionary dictionary];
[proDic setObject:temp forKey:@"proName"];
NSMutableArray *cityArr = [NSMutableArray array];
[proDic setObject:cityArr forKey:@"cityName"];
[self.provinceArr 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:@"zoneName"];

NSMutableDictionary *proDic = self.provinceArr.lastObject;
NSMutableArray *cityArr = proDic[@"cityName"];
[cityArr addObject:cityDic];
} else {
NSMutableDictionary *proDic = self.provinceArr.lastObject;
NSMutableArray *cityArr = proDic[@"cityName"];
NSMutableDictionary *cityDic = cityArr.lastObject;
NSMutableArray *zoneArr = cityDic[@"zoneName"];
[zoneArr addObject:temp];
}

}
}
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
//  automaticallyAdjustsScrollViewInsets会把第一个滚动视图的坐标起始位置设置成(0, 64), 但是它不会管后面的滚动视图, 所以想要保存半透明效果需要把这个属性设置成NO, 然后坐标起始位置都加64
//  或者把导航栏设置成不透明, 坐标系就稳定了
self.automaticallyAdjustsScrollViewInsets = NO;
//    self.navigationController.navigationBar.translucent = NO;

self.provinceTableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 64, WIDTH / 3, HEIGHT - 64) style:UITableViewStylePlain];
[self.view addSubview:self.provinceTableView];
[self.provinceTableView release];
self.provinceTableView.dataSource = self;
self.provinceTableView.delegate = self;

self.cityTableView = [[UITableView alloc] initWithFrame:CGRectMake(WIDTH / 3, 64, WIDTH / 3, HEIGHT - 64) style:UITableViewStylePlain];
[self.view addSubview:self.cityTableView];
[self.cityTableView release];
self.cityTableView.dataSource = self;
self.cityTableView.delegate = self;

self.zoneTableView = [[UITableView alloc] initWithFrame:CGRectMake(WIDTH / 3 * 2, 64, WIDTH / 3, HEIGHT - 64) style:UITableViewStylePlain];
[self.view addSubview:self.zoneTableView];
[self.zoneTableView release];
self.zoneTableView.dataSource = self;
self.zoneTableView.delegate = self;

}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
//  点击省出现市
if (tableView == self.provinceTableView) {
//  再次选择省时, 区消失
//        用[self.zoneArr removeAllObjects];有bug, 再次访问时, 变成了空,,改变了数据源
self.zoneArr = nil;
[self.zoneTableView reloadData];
//  把省对应的市数组给属性赋值
self.cityArr = self.provinceArr[indexPath.row] [@"cityName"];
[self.cityTableView reloadData];
} else if (tableView == self.cityTableView) {
self.zoneArr = self.cityArr[indexPath.row][@"zoneName"];
[self.zoneTableView reloadData];
}
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *Reuse = @"Reuse";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:Reuse];
if (!cell) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:Reuse];
}
if (tableView == self.provinceTableView) {
cell.textLabel.text = self.provinceArr[indexPath.row][@"proName"];
} else if (tableView == self.cityTableView) {
cell.textLabel.text = self.cityArr[indexPath.row][@"cityName"];
} else {
cell.textLabel.text = self.zoneArr[indexPath.row];
}
return cell;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
if (tableView == self.provinceTableView) {
return self.provinceArr.count;
} else if (tableView == self.cityTableView){
return self.cityArr.count;
} else {
return self.zoneArr.count;
}

}