iOS集成高德地图SDK

前言:关于这次集成高德地图,打算分几个内容定位 POI检索 导航 线路规划,现在只是简单地实现了前两个功能,先记录一下吧。
至于集成SDK的过程很简单,需要注意的只是Info.plist中的添加两个字段
Privacy - Location When In Use Usage Description 定位权限(使用时定位)
Allow Arbitrary Loads

  • 定位

(1)添加大头针
先导入头文件
#import #import #import
懒加载创建mapView

    if (_mapView == nil) {
        _mapView = [[MAMapView alloc]initWithFrame:self.view.bounds];
        //设置进入地图的缩放比例
        [_mapView setZoomLevel:17.5 animated:YES];
        //地图跟着位置移动
        [_mapView setUserTrackingMode: MAUserTrackingModeFollow animated:NO];
        ///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;
        //如果不写这句话,就不会显示蓝色圆圈,也不会自动定位,这个貌似无法更改大小
        _mapView.userTrackingMode = MAUserTrackingModeFollow;
        _mapView.delegate = self;
    }
    return _mapView;
}

创建大头针重要的一点是要实现-(MAAnnotationView *)mapView:(MAMapView *)mapView viewForAnnotation:(id)annotation代理方法
此时我们并没有给大头针加上经纬度和标题,看很多demo都是直接赋值,并没有根据当前用户的位置设置大头针,经过我不断地踩坑,解决了这个问题。
要获取当前用户的位置及位置的title和subTitle,要实现中的两个代理方法:
// 用户地址发生更新后执行- (void)mapView:(MAMapView *)mapView didUpdateUserLocation:(MAUserLocation *)userLocation updatingLocation:(BOOL)updatingLocation(这个方法用于获取当前用户的经纬度)
// 反编码回调函数- (void)onReGeocodeSearchDone:(AMapReGeocodeSearchRequest *)request response:(AMapReGeocodeSearchResponse *)response(这个方法用于获取当前位置的title和subTitle)
此时我们就可以使用大头针的类MAPointAnnotation,创建一个全局对象,在代理方法中对其设置

- (void)mapView:(MAMapView *)mapView didUpdateUserLocation:(MAUserLocation *)userLocation updatingLocation:(BOOL)updatingLocation {
    //将用户地址传入参数currentLocation
    currentLocation = [userLocation.location copy];
    //获得当前地理编码后,进行反编码,获得当前定位点的信息
    [self reGeoAction];
    
}
//地理反编码函数
-(void)reGeoAction {
    if (currentLocation) {
        //生成一个地理反编码的搜索
        AMapReGeocodeSearchRequest *request = [[AMapReGeocodeSearchRequest alloc] init];
        
        request.location = [AMapGeoPoint locationWithLatitude:currentLocation.coordinate.latitude longitude:currentLocation.coordinate.longitude];
        [self.searchAPI AMapReGoecodeSearch:request];
    }
}
// 反编码回调函数
- (void)onReGeocodeSearchDone:(AMapReGeocodeSearchRequest *)request response:(AMapReGeocodeSearchResponse *)response {
    //将搜索结果传给用户定位点,这样点击气泡就可以显示出详细信息
    NSString *title = response.regeocode.addressComponent.city;
    if (title.length ==0) {
        title = response.regeocode.addressComponent.province;
    }
    self.mapView.userLocation.title = title;
    self.mapView.userLocation.subtitle = response.regeocode.formattedAddress;
    [self.mapView selectedAnnotations];
    self.mapView.centerCoordinate = CLLocationCoordinate2DMake(currentLocation.coordinate.latitude, currentLocation.coordinate.longitude);
    pointAnnotation.coordinate = CLLocationCoordinate2DMake(currentLocation.coordinate.latitude, currentLocation.coordinate.longitude);
    pointAnnotation.title = title;
    pointAnnotation.subtitle = response.regeocode.formattedAddress;

}


//添加大头针
-(MAAnnotationView *)mapView:(MAMapView *)mapView viewForAnnotation:(id)annotation{
    
    if ([annotation isKindOfClass:[MAPointAnnotation class]])
    {
        static NSString *pointReuseIndentifier = @"pointReuseIndentifier";
        MAPinAnnotationView *annotationView = (MAPinAnnotationView*)[mapView dequeueReusableAnnotationViewWithIdentifier:pointReuseIndentifier];
        if (annotationView == nil)
        {
            annotationView = [[MAPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:pointReuseIndentifier];
        }
        annotationView.canShowCallout= YES; //设置气泡可以弹出,默认为NO
        annotationView.animatesDrop = YES;  //设置标注动画显示,默认为NO
        annotationView.draggable = YES;     //设置标注可以拖动,默认为NO
        annotationView.pinColor = MAPinAnnotationColorPurple;
        return annotationView;
    }
    return nil;
}

效果图(最好用真机测试,模拟器不准确):

iOS集成高德地图SDK_第1张图片
定位大头针

(2)添加覆盖圆

- (void)onReGeocodeSearchDone:(AMapReGeocodeSearchRequest *)request response:(AMapReGeocodeSearchResponse *)response {
 
    MACircle *circle = [MACircle circleWithCenterCoordinate:currentLocation.coordinate radius:1000];
    [self.mapView addOverlay:circle];
}
//添加覆盖的圆圈的代理方法
-(MAOverlayRenderer *)mapView:(MAMapView *)mapView rendererForOverlay:(id )overlay{
    
    if ([overlay isKindOfClass:[MACircle class]])
    {
        MACircleRenderer *circleView = [[MACircleRenderer alloc] initWithCircle:overlay];
        circleView.lineWidth = 5.f;
        circleView.strokeColor = [UIColor colorWithRed:0.6 green:0.6 blue:0.6 alpha:0.8];
        circleView.fillColor = [UIColor colorWithRed:1.0 green:0.8 blue:0.0 alpha:0.8];
        return circleView;
    }
    return nil;
}
  • POI周边检索

    自定义一个搜索框,将搜索框中的字符串作为POI检索的关键字,然后将搜索到的信息展示出来,实现过程很简单,先上一张效果图:
    POI检索效果图:

    )
    效果图直接去github上看吧,不知道为什么上传不了动图了.
    Demo地址

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