iOS使用高德的正确姿势（二）

高德-1.png

本文主要实现如图功能

• 配置就不用多说，看使用高德正确姿势（一）

直奔主题

1.实现基础定位在地图上显示

//添加头文件
#import <MAMapKit/MAMapKit.h>
#import <AMapFoundationKit/AMapFoundationKit.h>
#import <AMapLocationKit/AMapLocationKit.h>
//搜索基础类
#import <AMapSearchKit/AMapSearchKit.h>

---

//viewDidLoad
 ///初始化地图
   _mapView = [[MAMapView alloc] initWithFrame:self.view.bounds];
 ///把地图添加至view
    [self.view addSubview:_mapView];
    
    ///如果您需要进入地图就显示定位小蓝点，则需要下面两行代码
    _mapView.showsUserLocation = YES;
    _mapView.userTrackingMode = MAUserTrackingModeFollow;
    //设置地图缩放比例，即显示区域
    [_mapView setZoomLevel:15.1 animated:YES];
    _mapView.delegate = self;
    //设置定位精度
    _mapView.desiredAccuracy = kCLLocationAccuracyBest;
    //设置定位距离
    _mapView.distanceFilter = 5.0f;

2.实现点击小蓝点显示当前位置的具体地址

2.1 //初始化_search 用于逆编码

    self.search =[[AMapSearchAPI alloc] init];
    self.search.delegate=self;
 //把中心点设成自己的坐标
    _mapView.centerCoordinate = self.currentLocation.coordinate;

2.1实现代理

#pragma mark 定位更新回调
-(void)mapView:(MAMapView *)mapView didUpdateUserLocation:(MAUserLocation *)userLocation
updatingLocation:(BOOL)updatingLocation
{
    if(updatingLocation)
    {
        self.currentLocation = [userLocation.location copy];
        
        [_mapView setCenterCoordinate:CLLocationCoordinate2DMake(userLocation.location.coordinate.latitude, userLocation.location.coordinate.longitude) animated:YES];
        
    }
    
    
}
-(void)setCurrentLocation:(CLLocation *)currentLocation{
    
    if (!_currentLocation) {
        _currentLocation = currentLocation;
        _mapView.centerCoordinate = currentLocation.coordinate;
        [self reGeoCoding];
    }
}
#pragma mark 逆地理编码,经纬度编码成地址
-(void)reGeoCoding{
    if (_currentLocation) {
        AMapReGeocodeSearchRequest *request =[[AMapReGeocodeSearchRequest alloc] init];
        request.location =[AMapGeoPoint locationWithLatitude:_currentLocation.coordinate.latitude longitude:_currentLocation.coordinate.longitude];
        [_search AMapReGoecodeSearch:request];
    }
}
#pragma mark 搜索请求发起后的回调,用于标记自己当前的位置
/**失败回调*/
-(void)AMapSearchRequest:(id)request didFailWithError:(NSError *)error{
    
    NSLog(@"request: %@------error:  %@",request,error);
}
//*成功回调
-(void)onReGeocodeSearchDone:(AMapReGeocodeSearchRequest *)request response:(AMapReGeocodeSearchResponse *)response{
    //我们把编码后的地理位置，显示到 大头针的标题和子标题上
    NSString *title =response.regeocode.addressComponent.city;
    NSLog(@"%@",title);
    if (title.length == 0) {
        title = response.regeocode.addressComponent.province;
    }
    //    NSLog(@"=====%@",request.location);
    if (request.location.latitude == _currentLocation.coordinate.latitude&&request.location.longitude == _currentLocation.coordinate.longitude) {
        _mapView.userLocation.title = title;
        _mapView.userLocation.subtitle = response.regeocode.formattedAddress;
    }else{
        self.anomationPoint.title = title;
        self.anomationPoint.subtitle = response.regeocode.formattedAddress;
    }
}