/* 使用高德地图API，请注册Key，注册地址：http://lbs.amap.com/console/key */

const static NSString *APIKey = @"";

initMapView

- (void)initMapView
{
    // 配置用户Key
    [MAMapServices sharedServices].apiKey = APIKey;
    
    _maMapView = [[MAMapView alloc] initWithFrame:CGRectMake(0, 0, CGRectGetWidth(self.view.bounds), CGRectGetHeight(self.view.bounds))];
    
    _maMapView.delegate = self;
    // 设置指南针和比例尺的位置
    _maMapView.compassOrigin = CGPointMake(_maMapView.compassOrigin.x, 21);
    _maMapView.scaleOrigin = CGPointMake(_maMapView.scaleOrigin.x, 21);

    // 开启定位
    // 取得定位权限,有两个方法,取决于你的定位使用情况
    // 一个是requestAlwaysAuthorization,一个是requestWhenInUseAuthorization
    // iOS8对定位进行了一些修改，其中包括定位授权的方法,CLLocationManager增加了下面的两个方法
    // 在Info.plist文件中添加如下配置：
    // NSLocationAlwaysUsageDescription Always
    // NSLocationWhenInUseUsageDescription InUse
    _maMapView.showsUserLocation = YES;
    
    // 设置跟随定位模式,将定位点设置成地图中心点
    _maMapView.userTrackingMode = MAUserTrackingModeFollow;
    
    [self.view addSubview:_maMapView];
}

初始化 AMapSearchAPI

// 初始化 AMapSearchAPI
- (void)initSearch
{
    // 初始化检索对象
    // 初始化之前请设置 AMapSearchServices 中的APIKey,否则将无法正常使用搜索服务.
    [AMapSearchServices sharedServices].apiKey = APIKey;
    _search = [[AMapSearchAPI alloc] init];
    _search.delegate = self;
}

逆地理编码

// 逆地理编码
- (void)reGeoAction
{
    if (_currentLocation)
    {
        AMapReGeocodeSearchRequest *request = [[AMapReGeocodeSearchRequest alloc] init];
        
        // 构造AMapReGeocodeSearchRequest对象,配置查询参数（中心点坐标）
        request.location = [AMapGeoPoint locationWithLatitude:_currentLocation.coordinate.latitude longitude:_currentLocation.coordinate.longitude];
        
        // 进行逆地理编码查询
        [_search AMapReGoecodeSearch:request];
    }
}

要实时获得用户的经纬度:则需要添加下面这个代理方法
定位回调

// 定位回调
- (void)mapView:(MAMapView *)mapView didUpdateUserLocation:(MAUserLocation *)userLocation updatingLocation:(BOOL)updatingLocation
{
    NSLog(@"userLocation:%@",userLocation.location);
    _currentLocation = [userLocation.location copy];
}

定位回调发起逆地理编码

- (void)mapView:(MAMapView *)mapView didUpdateUserLocation:(MAUserLocation *)userLocation updatingLocation:(BOOL)updatingLocation
{
    if (updatingLocation)
    {
        _currentLocation = [userLocation.location copy];
        
        lat = [NSString stringWithFormat:@"%f",_currentLocation.coordinate.latitude];
        lon = [NSString stringWithFormat:@"%f",_currentLocation.coordinate.longitude];

        // 发起逆地理编码
        [self reGeoAction];
        _maMapView.showsUserLocation = NO;
    }
}

逆地理编码查询回调函数

// 逆地理编码查询回调函数
- (void)onReGeocodeSearchDone:(AMapReGeocodeSearchRequest *)request response:(AMapReGeocodeSearchResponse *)response;
{
//    NSLog(@"response :%@",response);
    if (response.regeocode != nil)
    {
        NSString *title = response.regeocode.addressComponent.city;
        if (title.length == 0)
        {
            title = response.regeocode.addressComponent.province;
        }
        
        // 给定位标注的title和subtitle赋值,在气泡中显示定位点的地址信息
        _maMapView.userLocation.title = title;
        _maMapView.userLocation.subtitle = response.regeocode.formattedAddress;
    }
}

- (void)onReGeocodeSearchDone:(AMapReGeocodeSearchRequest *)request response:(AMapReGeocodeSearchResponse *)response;
{
    if (response.regeocode != nil)
    {
        NSString *title = response.regeocode.addressComponent.city;
        if (title.length == 0)
        {
            title = response.regeocode.addressComponent.province;
        }
        
        name = response.regeocode.formattedAddress;
        
        NSString *result = [NSString stringWithFormat:@"当前位置：%@",name];
        
        self.resultLocation.text = result;

        // 添加大头针,根据给定经纬度进行定位并添加标注
        MAPointAnnotation *reGeocodeAnnotation = [[MAPointAnnotation alloc] init];
        [reGeocodeAnnotation setCoordinate:_currentLocation.coordinate];
        reGeocodeAnnotation.title = title;
        reGeocodeAnnotation.subtitle = name;
        
        // 添加标注
        [_maMapView addAnnotation:reGeocodeAnnotation];
        // 标注是否有动画效果
        [_maMapView selectAnnotation:reGeocodeAnnotation animated:YES];
        
    }

}

显示Annotation,每在MapView中加入一个Annotation,就会调用此方法

// 显示Annotation,每在MapView中加入一个Annotation,就会调用此方法
- (MAAnnotationView *)mapView:(MAMapView *)mapView viewForAnnotation:(id<MAAnnotation>)annotation
{
    if ([annotation isKindOfClass:[MAPointAnnotation class]])
    {
        // 内存优化后写法,重用机制
        static NSString *pointReuseIndetifier = @"pointReuseIndetifier";
        
        MAPinAnnotationView *annotationView = (MAPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:pointReuseIndetifier];
        // 判断是否存在
        if (annotationView == nil)
        {
            annotationView = [[MAPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:pointReuseIndetifier];
        }
        // 显示注释的标题和子标题
        annotationView.canShowCallout   = YES;
        // 设置大头针动画
        annotationView.animatesDrop     = YES;
        // 是否支持拖动
        annotationView.draggable        = NO;
        // 设置大头针颜色
        annotationView.pinColor         = MAPinAnnotationColorPurple;
        
        return annotationView;
    }
    
    return nil;
}

搜索失败回调方法

// 搜索失败回调方法
- (void)AMapSearchRequest:(id)request didFailWithError:(NSError *)error;
{
    NSLog(@"request :%@,error :%@",request,error);
}

点击Annotation回调

// 点击Annoation回调
- (void)mapView:(MAMapView *)mapView didSelectAnnotationView:(MAAnnotationView *)view
{
    // 若点击的是定位标注,则执行逆地理编码
    if ([view.annotation isKindOfClass:[MAUserLocation class]])
    {
        [self reGeoAction];
    }
}

修改定位状态

- (void)initControls
{
    _locationButton = [UIButton buttonWithType:UIButtonTypeCustom];
    _locationButton.frame = CGRectMake(20, CGRectGetHeight(_maMapView.bounds) - 80, 40, 40);
    _locationButton.autoresizingMask = UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleTopMargin;
    _locationButton.backgroundColor = [UIColor whiteColor];
    _locationButton.layer.cornerRadius = 5;
    
    [_locationButton addTarget:self action:@selector(locateAction) forControlEvents:UIControlEventTouchUpInside];
    
    [_locationButton setImage:[UIImage imageNamed:@"localion_no"] forState:UIControlStateNormal];
    [_maMapView addSubview:_locationButton];
}

- (void)locateAction
{
    if (_maMapView.userTrackingMode != MAUserTrackingModeFollow)
    {
        [_maMapView setUserTrackingMode:MAUserTrackingModeFollow animated:YES];
    }
}

- (void)mapView:(MAMapView *)mapView didChangeUserTrackingMode:(MAUserTrackingMode)mode animated:(BOOL)animated
{
    // 修改定位按钮状态
    if (mode == MAUserTrackingModeNone)
    {
        [_locationButton setImage:[UIImage imageNamed:@"location_no"] forState:UIControlStateNormal];
    }
    else
    {
        [_locationButton setImage:[UIImage imageNamed:@"location_yes"] forState:UIControlStateNormal];
    }
}

在工程中导入

#import <MAMapKit/MAMapKit.h>
#import <AMapSearchKit/AMapSearchKit.h>

@interface CheckinViewController ()<MAMapViewDelegate,AMapSearchDelegate>
{
    MAMapView *_maMapView;
    AMapSearchAPI *_search;
    
    CLLocation *_currentLocation;
    
    NSString *lat;
    NSString *lon;
    NSString *name;
}