根据中国天气网,自动定位获得当地天气(数据是JSON的)---不过这个接口貌似不更新了

#import <UIKit/UIKit.h>#import <CoreLocation/CoreLocation.h>@interface DNWCustomWeatherView : UIView <CLLocationManagerDelegate>@property (nonatomic,retain,readonly) UIImageView * weatherImage;  //  天气图像@property (nonatomic,retain,readonly) UILabel * temperatureLabel;  //  当地温度@property (nonatomic,retain,readonly) UILabel * loactionNameLabel; //  当地名称@property (nonatomic,retain) CLLocationManager * locationManage;@property (nonatomic,retain) NSMutableArray * allCityWeatherIDArray;  //  存储所有城市的名字和天气ID,里面的对象是字典@property (nonatomic,copy) NSString * weatherInterFace;  //  天气接口@end

#define WeatherPublic @"http://m.weather.com.cn/data/"#import "DNWCustomWeatherView.h"#import <AddressBook/AddressBook.h>     // 导入对应库#import <CoreLocation/CoreLocation.h>   // 导入对应库#import "HMTMyCustomNetRequest.h"@interface DNWCustomWeatherView (){        HMTMyCustomNetRequest * _request;}@end@implementation DNWCustomWeatherView- (void)dealloc{        RELEASE_SAFELY(_request);    RELEASE_SAFELY(_locationManage);    RELEASE_SAFELY(_allCityWeatherIDArray);    RELEASE_SAFELY(_weatherInterFace);    [super dealloc];    }- (id)initWithFrame:(CGRect)frame{    self = [super initWithFrame:frame];    if (self) {        // Initialization code                [self createCustomWeaterView];            }    return self;}- (void)createCustomWeaterView{#pragma mark - 天气图像    _weatherImage = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 40, 42)];    _weatherImage.backgroundColor = [UIColor blackColor];    _weatherImage.userInteractionEnabled = YES;    [self addSubview:_weatherImage];    [_weatherImage release];    #pragma mark - 天气温度    _temperatureLabel = [[UILabel alloc] initWithFrame:CGRectMake(40, 0, 40, 22)];    _temperatureLabel.textAlignment = NSTextAlignmentCenter;    _temperatureLabel.font = [UIFont systemFontOfSize:7.0];    [self addSubview:_temperatureLabel];    [_temperatureLabel release];#pragma mark - 地方名称    _loactionNameLabel = [[UILabel alloc] initWithFrame:CGRectMake(40, 22, 40, 20)];    _loactionNameLabel.textAlignment = NSTextAlignmentCenter;    _loactionNameLabel.font = [UIFont systemFontOfSize:10.0];    [self addSubview:_loactionNameLabel];    [_loactionNameLabel release];    #pragma mark - 地图GPS定位    [self createGPSMap];#pragma mark - 获得所有城市天气ID数组的方法    [self getAllCityWeatherIDArray];            }- (void)getAllCityWeatherIDArray{    self.allCityWeatherIDArray = [NSMutableArray array];        // 从应用程序里面提取JSON数据    NSData * idData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"cities" ofType:@"json"]];    NSDictionary * dic = [NSJSONSerialization JSONObjectWithData:idData options:NSJSONReadingMutableContainers error:nil];    NSArray * allArray = [dic objectForKey:@"城市代码"];    for (int i = 0; i < [allArray count]; i++) {                // 获得所有省的数据字典        NSDictionary * provinceDic = [allArray objectAtIndex:i];                // 获得省对应市的数组信息        NSArray * cityArray = [provinceDic objectForKey:@"市"];        for (int j = 0; j < [cityArray count]; j++) {                        // 获得全国各地市级的名称和天气请求ID            NSDictionary * cityAndIdDic = [cityArray objectAtIndex:j];            [self.allCityWeatherIDArray addObject:cityAndIdDic];                    }            }    }#pragma mark - 获得天气情况- (void)getWeatherInterFaceWithCityName:(NSString *)city{    // 获得请求天气的接口    NSString * cityFitJson = [city substringWithRange:NSMakeRange(0,2)];    for (int i = 0; i < [_allCityWeatherIDArray count]; i++) {                NSDictionary * cityDic = [_allCityWeatherIDArray objectAtIndex:i];                NSString * weatherCity = [cityDic objectForKey:@"市名"];        if ([cityFitJson isEqualToString:weatherCity]) {                        NSString * cityId = [cityDic objectForKey:@"编码"];            NSString * cityIdWithHtml = [cityId stringByAppendingString:@".html"];            self.weatherInterFace = [WeatherPublic stringByAppendingString:cityIdWithHtml];        }            }        // 用获得的接口进行网络请求     _request = [[HMTMyCustomNetRequest alloc] init];    [_request requestForGETWithUrl:_weatherInterFace];    [_request setFinishLoadBlock:^(NSData * data){            NSDictionary * dic = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];        NSDictionary * weatherinfoDic = [dic objectForKey:@"weatherinfo"];                _temperatureLabel.text = [weatherinfoDic objectForKey:@"temp1"];            }];    }- (void)createGPSMap{        // 初始化位置服务    self.locationManage = [[CLLocationManager alloc]init];        // 要求CLLocationManager对象返回全部信息    _locationManage.distanceFilter = kCLDistanceFilterNone;        // 设置定位精度    _locationManage.desiredAccuracy = kCLLocationAccuracyBest;        // 设置代理    _locationManage.delegate = self;        // 开始定位    [_locationManage startUpdatingLocation];        [_locationManage release];    }- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations{        CLLocation * newLocation = [locations lastObject];    // 停止实时定位    [_locationManage stopUpdatingLocation];            // -----------------------位置反编码------------------------    CLGeocoder * geocoder = [[CLGeocoder alloc]init];    [geocoder reverseGeocodeLocation:newLocation completionHandler:^(NSArray *placemarks, NSError *error) {                for (CLPlacemark * place in placemarks) {            NSLog(@"name = %@",place.name);                                    // 位置名            NSLog(@"thoroughfare = %@",place.thoroughfare);                    // 街道            NSLog(@"subAdministrativeArea = %@",place.subAdministrativeArea);  // 子街道            NSLog(@"locality = %@",place.locality);                            // 市            NSLog(@"subLocality = %@",place.subLocality);                      // 区            NSLog(@"country = %@",place.country);// 国家            NSArray *allKeys = place.addressDictionary.allKeys;            for (NSString *key in allKeys)            {                NSLog(@"key = %@, value = %@",key, place.addressDictionary[key]);            }#pragma mark - 使用系统定义的字符串直接查询,记得导入AddressBook框架            NSLog(@"kABPersonAddressCityKey = %@", (NSString *)kABPersonAddressCityKey);            NSLog(@"city = %@", place.addressDictionary[(NSString *)kABPersonAddressCityKey]);            NSString * city = place.locality;            NSString * state = place.addressDictionary[(NSString *)kABPersonAddressStateKey];            NSLog(@"state = %@",state);            if(city == nil)            {                city = place.addressDictionary[(NSString *)kABPersonAddressStateKey];            }            _loactionNameLabel.text = [city substringWithRange:NSMakeRange(0,2)];            //  获得所在地后,传入城市名            [self getWeatherInterFaceWithCityName:city];        }            }];    }@end