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最近在做一个天气应用,需要用户选择所在城市。考虑到城市信息一般不会发生大的变化,所以从网上找到了中国城市信息的xml文件,下面是利用一个tableview实现地区选择的代码,比较简单,就不解释了。AddressViewController.h文件
// // AddressViewController.h // AddressDemo // // Created by worthy.zhang on 15/5/29. // Copyright (c) 2015年 worthy.zhang. All rights reserved. // #import <UIKit/UIKit.h> #define kDisplayProvince 0 #define kDisplayCity 1 #define kDisplayArea 2 @interface AddressViewController : UIViewController<UITableViewDelegate,UITableViewDataSource> @property(nonatomic,strong)UITableView *tableView; @property(nonatomic,assign)int displayType; @property(nonatomic,strong)NSArray *provinces; @property(nonatomic,strong)NSArray *citys; @property(nonatomic,strong)NSArray *areas; @property(nonatomic,strong)NSString *selectedProvince;//选中的省 @property(nonatomic,strong)NSString *selectedCity;//选中的市 @property(nonatomic,strong)NSString *selectedArea;//选中的区 @end AddressViewController.m文件 // // AddressViewController.m // AddressDemo // // Created by worthy.zhang on 15/5/29. // Copyright (c) 2015年 worthy.zhang. All rights reserved. // #import "AddressViewController.h" @interface AddressViewController () @property(nonatomic,strong)NSIndexPath *selectedIndexPath;//当前选中的NSIndexPath @end @implementation AddressViewController -(void)viewDidLoad{ [self configureData]; [self configureViews]; } -(void)configureData{ if (self.displayType == kDisplayProvince) { //从文件读取地址字典 NSString *addressPath = [[NSBundle mainBundle] pathForResource:@"address" ofType:@"plist"]; NSMutableDictionary *dict = [[NSMutableDictionary alloc]initWithContentsOfFile:addressPath]; self.provinces = [dict objectForKey:@"address"]; } } -(void)configureViews{ if (self.displayType == kDisplayProvince) { //只在选择省份页面显示取消按钮 self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc]initWithTitle:@"取消" style:UIBarButtonItemStylePlain target:self action:@selector(cancel)]; } if (self.displayType == kDisplayArea) {//只在选择区域页面显示确定按钮 self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc]initWithTitle:@"确定" style:UIBarButtonItemStylePlain target:self action:@selector(submit)]; } CGRect frame = [self.view bounds]; self.tableView = [[UITableView alloc]initWithFrame:frame]; self.tableView.delegate = self; self.tableView.dataSource = self; [self.view addSubview:self.tableView]; } -(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{ if (self.displayType == kDisplayProvince) { return self.provinces.count; }else if (self.displayType == kDisplayCity){ return self.citys.count; }else{ return self.areas.count; } } -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{ static NSString* ID = @"cityCell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:ID]; if (!cell) { cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:ID]; if (self.displayType == kDisplayArea) { cell.accessoryType = UITableViewCellAccessoryNone; }else{ cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; } } if (self.displayType == kDisplayProvince) { NSDictionary *province = self.provinces[indexPath.row]; NSString *provinceName = [province objectForKey:@"name"]; cell.textLabel.text= provinceName; }else if (self.displayType == kDisplayCity){ NSDictionary *city = self.citys[indexPath.row]; NSString *cityName = [city objectForKey:@"name"]; cell.textLabel.text= cityName; }else{ cell.textLabel.text= self.areas[indexPath.row]; cell.imageView.image = [UIImage imageNamed:@"unchecked"]; } return cell; } -(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{ if (self.displayType == kDisplayProvince) { NSDictionary *province = self.provinces[indexPath.row]; NSArray *citys = [province objectForKey:@"sub"]; self.selectedProvince = [province objectForKey:@"name"]; //构建下一级视图控制器 AddressViewController *cityVC = [[AddressViewController alloc]init]; cityVC.displayType = kDisplayCity;//显示模式为城市 cityVC.citys = citys; cityVC.selectedProvince = self.selectedProvince; [self.navigationController pushViewController:cityVC animated:YES]; }else if (self.displayType == kDisplayCity){ NSDictionary *city = self.citys[indexPath.row]; self.selectedCity = [city objectForKey:@"name"]; NSArray *areas = [city objectForKey:@"sub"]; //构建下一级视图控制器 AddressViewController *areaVC = [[AddressViewController alloc]init]; areaVC.displayType = kDisplayArea;//显示模式为区域 areaVC.areas = areas; areaVC.selectedCity = self.selectedCity; areaVC.selectedProvince = self.selectedProvince; [self.navigationController pushViewController:areaVC animated:YES]; } else{ //取消上一次选定状态 UITableViewCell *oldCell = [tableView cellForRowAtIndexPath:self.selectedIndexPath]; oldCell.imageView.image = [UIImage imageNamed:@"unchecked"]; //勾选当前选定状态 UITableViewCell *newCell = [tableView cellForRowAtIndexPath:indexPath]; newCell.imageView.image = [UIImage imageNamed:@"checked"]; //保存 self.selectedArea = self.areas[indexPath.row]; self.selectedIndexPath = indexPath; } } -(void)submit{ NSString *msg = [NSString stringWithFormat:@"%@-%@-%@",self.selectedProvince,self.selectedCity,self.selectedArea]; UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"选择地址" message:msg delegate:nil cancelButtonTitle:@"取消" otherButtonTitles:nil, nil]; [alert show]; } -(void)cancel{ [self dismissViewControllerAnimated:YES completion:nil]; } @end
效果图如下:
Demo地址:
https://github.com/WorthyZhang/AddressDemo
省市区plist数据下载地址:
http://download.csdn.net/detail/worthyzhang/8751317