#import "ViewController.h"
#import <CoreLocation/CoreLocation.h>
@interface ViewController ()
@property (weak, nonatomic) IBOutlet UITextField *addressTF;
@property (weak, nonatomic) IBOutlet UITextField *jingDu;
@property (weak, nonatomic) IBOutlet UITextField *weiDu;
@property (weak, nonatomic) IBOutlet UITextView *myTextView;
@property (nonatomic,strong) CLGeocoder *geocoder;
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    // 創建地址解析器
    self.geocoder = [[CLGeocoder alloc] init];
}

- (IBAction)openParsingButton:(id)sender {
    // 獲取用戶輸入的地址字符串
    NSString* addr = self.addressTF.text;
    if(addr != nil && addr.length > 0)
    {
        [self.geocoder geocodeAddressString:addr completionHandler: ^(NSArray *placemarks, NSError *error)
        {
            // 如果解析結果的集合元素的個數大于1，表明解析得到了經度、緯度信息
            if (placemarks.count > 0)
            {
                // 只處理第一個解析結果，實際項目中可使用列表讓用戶選擇
                CLPlacemark* placemark = placemarks[0];
                CLLocation* location = placemark.location;
                self.myTextView.text = [NSString stringWithFormat:@"%@的緯度為：%g，經度為：%g" , addr ,location.coordinate.latitude,location.coordinate.longitude];
            }
            // 沒有得到解析結果。
            else
            {
                // 使用UIAlertView提醒用戶
                [[[UIAlertView alloc] initWithTitle:@"提醒" message:@"您輸入的地址無法解析" delegate:nil cancelButtonTitle:@"確定" otherButtonTitles: nil]show];
            }
        }];
    }
}
- (IBAction)theParsingButton:(id)sender {
    //經度
    NSString* longitudeStr = self.weiDu.text;
    //緯度
    NSString* latitudeStr = self.jingDu.text;
    if(longitudeStr != nil && longitudeStr.length > 0&& latitudeStr != nil && latitudeStr.length > 0)
    {
        // 將用戶輸入的經度、緯度封裝成CLLocation對象
        CLLocation* location = [[CLLocation alloc]initWithLatitude:[latitudeStr floatValue]longitude:[longitudeStr floatValue]];
        [self.geocoder reverseGeocodeLocation:location completionHandler:^(NSArray *placemarks, NSError *error)
        {
            // 如果解析結果的集合元素的個數大于1，表明解析得到了經度、緯度信息
            if (placemarks.count > 0)
            {
                // 只處理第一個解析結果，實際項目可使用列表讓用戶選擇
                CLPlacemark* placemark = placemarks[0];
                // 獲取詳細地址信息
                NSArray* addrArray = [placemark.addressDictionary objectForKey:@"FormattedAddressLines"];
                // 將詳細地址拼接成一個字符串
                NSMutableString* addr = [[NSMutableString alloc] init];
                for(int i = 0 ; i < addrArray.count ; i ++)
                {
                    [addr appendString:addrArray[i]];
                }
                self.myTextView.text = [NSString stringWithFormat: @"經度：%g，緯度：%g的地址為：%@" ,location.coordinate.longitude ,location.coordinate.latitude , addr];
            }
            // 沒有得到解析結果。
            else
            {
                // 使用UIAlertView提醒用戶
                [[[UIAlertView alloc] initWithTitle:@"提醒" message:@"您輸入的地址無法解析" delegate:nil cancelButtonTitle:@"確定" otherButtonTitles: nil]
                 show];
            }
        }];
    }
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}


@end