#import "YYViewController.h"
#import <CoreLocation/CoreLocation.h>

@interface YYViewController ()
@property(nonatomic,strong)CLGeocoder *geocoder;
#pragma mark-地理編碼
- (IBAction)geocode;
@property (weak, nonatomic) IBOutlet UITextField *addressField;
@property (weak, nonatomic) IBOutlet UILabel *longitudeLabel;
@property (weak, nonatomic) IBOutlet UILabel *latitudeLabel;
@property (weak, nonatomic) IBOutlet UILabel *detailAddressLabel;

#pragma mark-反地理編碼

- (IBAction)reverseGeocode;
@property (weak, nonatomic) IBOutlet UITextField *longitudeField;
@property (weak, nonatomic) IBOutlet UITextField *latitudeField;
@property (weak, nonatomic) IBOutlet UILabel *reverdeDetailAddressLabel;
@end

#pragma mark-懶加載
-(CLGeocoder *)geocoder
{
    if (_geocoder==nil) {
        _geocoder=[[CLGeocoder alloc]init];
    }
    return _geocoder;
}
- (void)viewDidLoad
{
    [super viewDidLoad];
}
/**
 *  地理編碼：地名—>經(jīng)緯度坐標
 */
- (IBAction)geocode {
    //1.獲得輸入的地址
    NSString *address=self.addressField.text;
    if (address.length==0) return;
   
    //2.開始地理編碼
    //說明：調(diào)用下面的方法開始編碼，不管編碼是成功還是失敗都會調(diào)用block中的方法
    [self.geocoder geocodeAddressString:address completionHandler:^(NSArray *placemarks, NSError *error) {
        //如果有錯誤信息，或者是數(shù)組中獲取的地名元素數(shù)量為0，那么說明沒有找到
        if (error || placemarks.count==0) {
            self.detailAddressLabel.text=@"你輸入的地址沒找到，可能在月球上";
        }else   //  編碼成功，找到了具體的位置信息
        {
            //打印查看找到的所有的位置信息
                /*
                    name:名稱
                    locality:城市
                    country:國家
                    postalCode:郵政編碼
                 */
            for (CLPlacemark *placemark in placemarks) {
                NSLog(@"name=%@ locality=%@ country=%@ postalCode=%@",placemark.name,placemark.locality,placemark.country,placemark.postalCode);
            }
           
            //取出獲取的地理信息數(shù)組中的第一個顯示在界面上
            CLPlacemark *firstPlacemark=[placemarks firstObject];
            //詳細地址名稱
            self.detailAddressLabel.text=firstPlacemark.name;
            //緯度
            CLLocationDegrees latitude=firstPlacemark.location.coordinate.latitude;
            //經(jīng)度
            CLLocationDegrees longitude=firstPlacemark.location.coordinate.longitude;
            self.latitudeLabel.text=[NSString stringWithFormat:@"%.2f",latitude];
            self.longitudeLabel.text=[NSString stringWithFormat:@"%.2f",longitude];
        }
    }];
}

/**
 *  反地理編碼：經(jīng)緯度坐標—>地名
 */
- (IBAction)reverseGeocode {
    //1.獲得輸入的經(jīng)緯度
    NSString *longtitudeText=self.longitudeField.text;
    NSString *latitudeText=self.latitudeField.text;
    if (longtitudeText.length==0||latitudeText.length==0) return;
   
    CLLocationDegrees latitude=[latitudeText doubleValue];
    CLLocationDegrees longitude=[longtitudeText doubleValue];
   
    CLLocation *location=[[CLLocation alloc]initWithLatitude:latitude longitude:longitude];
    //2.反地理編碼
    [self.geocoder reverseGeocodeLocation:location completionHandler:^(NSArray *placemarks, NSError *error) {
        if (error||placemarks.count==0) {
            self.reverdeDetailAddressLabel.text=@"你輸入的地址沒找到，可能在月球上";
        }else//編碼成功
        {
            //顯示最前面的地標信息
            CLPlacemark *firstPlacemark=[placemarks firstObject];
            self.reverdeDetailAddressLabel.text=firstPlacemark.name;
            //經(jīng)緯度
            CLLocationDegrees latitude=firstPlacemark.location.coordinate.latitude;
            CLLocationDegrees longitude=firstPlacemark.location.coordinate.longitude;
            self.latitudeField.text=[NSString stringWithFormat:@"%.2f",latitude];
            self.longitudeField.text=[NSString stringWithFormat:@"%.2f",longitude];
        }
    }];
}

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    [self.view endEditing:YES];
}
@end