app地图调用系统地图

import "ViewController.h"

import <CoreLocation/CoreLocation.h>

import <MapKit/MapKit.h>

import "MKMapAnnotation.h"

@interface ViewController ()<MKMapViewDelegate, UITextFieldDelegate>

@property (weak, nonatomic) IBOutlet UIView *mapBackView;
@property (weak, nonatomic) IBOutlet UITextField *destinationTextField;
@property (weak, nonatomic) IBOutlet UIButton *showButton;
@property (weak, nonatomic) IBOutlet UIButton *jumpButton;
@property (weak, nonatomic) IBOutlet UILabel *errorMessageLabel;

@property (nonatomic, strong) CLGeocoder * geocoder;
@property (nonatomic, strong) MKMapView * mapView;
@property (nonatomic, strong) CLPlacemark * clDestinationPlacemark;
@property (nonatomic, strong) MKMapAnnotation * annotation;

@end

@implementation ViewController

(void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.

[self.showButton addTarget:self action:@selector(handleShow:) forControlEvents:UIControlEventTouchUpInside];
[self.jumpButton addTarget:self action:@selector(handleJump:) forControlEvents:UIControlEventTouchUpInside];

self.destinationTextField.delegate = self;

self.geocoder = [[CLGeocoder alloc] init];

self.mapView = [[MKMapView alloc] initWithFrame:self.mapBackView.bounds];
self.mapView.showsUserLocation = NO;
self.mapView.mapType = MKMapTypeStandard;
/**
- MKMapTypeStandard 标准地图
- MKMapTypeSatellite 卫星地图
- MKMapTypeHybrid 具有街道信息的卫星地图模式
  */
  self.mapView.delegate = self;
  [self.mapBackView addSubview:self.mapView];
  }
(void)addMapViewRegion
{
MKCoordinateSpan theSpan;
// 地图的范围越小越精确
theSpan.latitudeDelta = 0.01;
theSpan.longitudeDelta = 0.01;
MKCoordinateRegion theRegion;
theRegion.center = _clDestinationPlacemark.location.coordinate;
theRegion.span = theSpan;
[self.mapView setRegion:theRegion];

_annotation = [[MKMapAnnotation alloc] init];
_annotation.title = @"首都图书馆";
_annotation.subtitle = @"你输入的地址没找到，可能在月球上";
_annotation.coordinate = theRegion.center;
[self.mapView addAnnotation:_annotation];
}

pragma mark - 添加大头针 -

(MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation
{
MKPinAnnotationView * pinView = nil;
static NSString * defaultPinID = @"com.companylocation.pin";
pinView = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:defaultPinID];
if (pinView == nil) {
pinView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:defaultPinID];
}
pinView.pinColor = MKPinAnnotationColorRed;
pinView.canShowCallout = YES;
pinView.animatesDrop = YES;
return pinView;
}
(void)handleShow:(UIButton *)sender
{
[self.destinationTextField resignFirstResponder];
[self getDestinationCordinateWithName:self.destinationTextField.text withActionType:1];
}
(void)handleJump:(UIButton *)sender
{
if (!_clDestinationPlacemark) {
[self getDestinationCordinateWithName:self.destinationTextField.text withActionType:2];
} else {
MKPlacemark * destinationPlaceMark = [[MKPlacemark alloc] initWithPlacemark:_clDestinationPlacemark];
[self jumpToMapWithDestinationCordinate:destinationPlaceMark];
}
}

(void)getDestinationCordinateWithName:(NSString *)destinationName withActionType:(NSInteger)actionType
{
// 1、get destination address
NSString * address = destinationName;
if (address.length != 0) {

  // 2、begin geocode
  // geocode with method below, the method in block will be called no matter success or fail
  [self.geocoder geocodeAddressString:address completionHandler:^(NSArray *placemarks, NSError *error) {
      
      // 如果有错误信息，或者是数组中获取的地名元素数量为0，说明没有找到
      if (error || placemarks.count == 0) {
          
          self.errorMessageLabel.text = @"你输入的地址没找到，可能在月球上";
          
      } else {
          // 编码成功，找到了具体的位置信息
          // 打印查看找到的所有的位置信息
          /**
           *  name: 名称
           *  locality: 城市
           *  country: 国家
           *  postalCode: 邮政编码
           */
          _clDestinationPlacemark = [placemarks firstObject];
          if (actionType == 2) {
              
              MKPlacemark * destinationPlaceMark = [[MKPlacemark alloc] initWithPlacemark:_clDestinationPlacemark];
              [self jumpToMapWithDestinationCordinate:destinationPlaceMark];
              
          } else if (actionType == 1) {
              
              [self addMapViewRegion];
          }
      }
  }];

}
}

(void)jumpToMapWithDestinationCordinate:(MKPlacemark *)destinationPlacemark
{
MKMapItem * currentLocation = [MKMapItem mapItemForCurrentLocation];
MKMapItem * toLocation = [[MKMapItem alloc] initWithPlacemark:destinationPlacemark];
toLocation.name = self.destinationTextField.text;
[MKMapItem openMapsWithItems:[NSArray arrayWithObjects:currentLocation, toLocation, nil] launchOptions:[NSDictionary dictionaryWithObjects:[NSArray arrayWithObjects:MKLaunchOptionsDirectionsModeDriving, [NSNumber numberWithBool:YES], nil] forKeys:[NSArray arrayWithObjects:MKLaunchOptionsDirectionsModeKey, MKLaunchOptionsShowsTrafficKey, nil]]];
}
(BOOL)textFieldShouldReturn:(UITextField *)textField
{
[self.destinationTextField resignFirstResponder];
return YES;
}
(void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}