首先，需要通過系統(tǒng)方法獲取當(dāng)前經(jīng)緯度
引入頭文件 #import <coreLocation/CoreLocation.h>
創(chuàng)建manager對(duì)象，用來獲取當(dāng)前位置
@property (strong, nonatomic)CLLocationManager *locationManager;
然后，寫一個(gè)實(shí)例方法，來統(tǒng)一獲取定位、溫度
#pragma mark --定位&溫度
- (void)locationAndTemperature{
// 初始化位置管理器
if (![CLLocationManager locationServicesEnabled])
{
//定位未開啟，溫度無法顯示 （筆者并未完善，讀者此處可以根據(jù)需求進(jìn)行修改）
}
else
{
_locationManager = [[CLLocationManager alloc] init];
_locationManager.delegate = self;
[self.locationManager requestWhenInUseAuthorization];
[_locationManager startUpdatingLocation];
}
}
開始系統(tǒng)定位以后，系統(tǒng)會(huì)以非常高的頻率執(zhí)行更新定位方法
- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray*)locations{
此處的locations 就是當(dāng)前定位的數(shù)組，里面存的是CLLocation 類型的位置信息 包含經(jīng)緯度
此時(shí)，筆者使用的是與蘋果系統(tǒng)相同的天氣API，需要通過城市名獲取當(dāng)前天氣信息的JSON文件，因此，此時(shí)可以通過系統(tǒng)的反向地理編碼獲取當(dāng)前經(jīng)緯度所在的城市。
// 獲取當(dāng)前所在的城市名
CLGeocoder *geocoder = [[CLGeocoder alloc] init];
for (CLLocation *loca in _locations) {
[geocoder reverseGeocodeLocation:loca completionHandler:^(NSArray *array, NSError *error){
if (array.count > 0)
{
CLPlacemark *placemark = [array objectAtIndex:0];
NSString *city = placemark.locality;
NSString *city1 = [city stringByReplacingCharactersInRange:NSMakeRange(city.length-1,1) withString:@""];
//更改為英文 并調(diào)用天氣api進(jìn)行查詢 （此處調(diào)用的類方法實(shí)現(xiàn)，在此方法下方）同時(shí)，
[self transform:city1]用來將中文的城市名轉(zhuǎn)換為英文
[WeatherService getTemperatureWithCityName:[self transform:city1] completion:^(NSError *error, id responseObject) {
if (responseObject != nil) {
[self.temperatureButton setTitle:[NSString stringWithFormat:@"%@℃",responseObject] forState:UIControlStateNormal];
;
[_locationManager stopUpdatingLocation];
}
LOG("溫度%@",responseObject);
}];
}
else if (error == nil && [array count] == 0)
{
LOG("無數(shù)據(jù)返回");
}
else if (error != nil)
{
LOG("錯(cuò)誤：%@", error);
}
}];
}
}
--此處是將中文轉(zhuǎn)換為英文的方法
//將中文轉(zhuǎn)換為拼音
- (NSString *)transform:(NSString *)chinese
{
if (chinese != nil) {
NSMutableString *pinyin = [chinese mutableCopy];
CFStringTransform((__bridge CFMutableStringRef)pinyin, NULL, kCFStringTransformMandarinLatin, NO);
CFStringTransform((__bridge CFMutableStringRef)pinyin, NULL, kCFStringTransformStripCombiningMarks, NO);
return [[pinyin uppercaseString] stringByReplacingOccurrencesOfString:@" " withString:@""];
}
return nil;
}
-- 此處是筆者單獨(dú)封裝的Weather類，用來請(qǐng)求數(shù)據(jù)
+ (AFHTTPRequestOperation *)getTemperatureWithCityName:(NSString *)cityName completion:(SCServiceCompletion)completion{
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.responseSerializer = [AFHTTPResponseSerializer serializer];
__block NSString *temperature = @"";
AFHTTPRequestOperation * DataTask = [manager GET:[NSString stringWithFormat:@"http://api.wunderground.com/api/你的API參數(shù)/conditions/q/CA/%@.json",cityName] parameters:nil success:^(AFHTTPRequestOperation * _Nonnull operation, id? _Nonnull responseObject) {
NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableLeaves error:nil];
NSDictionary *dic1 = [dic objectForKey:@"current_observation"];
temperature = [dic1 objectForKey:@"feelslike_c"];
//? ? ? ? dispatch_queue_t queue = dispatch_queue_create("WEATHER", DISPATCH_QUEUE_CONCURRENT);
dispatch_async(dispatch_get_main_queue(), ^{
dispatch_async(dispatch_get_main_queue(), ^{
if (completion) {
completion(nil, temperature);
}
});
});
} failure:^(AFHTTPRequestOperation * _Nullable operation, NSError * _Nonnull error) {
}];
return DataTask;
}
此時(shí)，即可獲取到手機(jī)定位所在地的體感溫度
API鏈接地址 ： http://api.wunderground.com/weather/api/d/docs?d=data/index
筆者QQ 268081059 如有不妥之處，歡迎指出
本文作者原創(chuàng)，如需轉(zhuǎn)載，請(qǐng)注明出處。
