调用百度地图实现基本功能

0.使用百度地图,点击屏幕下设置标注,并显示出当前标注的地区地址

1.项目工程文件设置参考百度SDK

2.在百度地图显示页面

#pragma mark -懒加载
//地图
- (BMKMapView *)mapView
{
    if (!_mapView) {
        _mapView = [[BMKMapView alloc] initWithFrame:CGRectMake(0, -64, kWeight, kHeight)];

        self.displayParam = [[BMKLocationViewDisplayParam alloc]init];
        _displayParam.isRotateAngleValid = YES;//跟随态旋转角度是否生效
        _displayParam.isAccuracyCircleShow = NO;//精度圈是否显示
        //_displayParam.locationViewImgName= @"icon";//定位图标名称
        _displayParam.locationViewOffsetX = 0;//定位偏移量(经度)
        _displayParam.locationViewOffsetY = 0;//定位偏移量（纬度）
        [_mapView updateLocationViewWithParam:_displayParam];

    }
    return _mapView;
}

//地图搜索
- (BMKGeoCodeSearch *)geocodesearch
{
    if (!_geocodesearch) {
        _geocodesearch = [[BMKGeoCodeSearch alloc] init];
        _geocodesearch.delegate = self;
    }
    return _geocodesearch;
}

//地图标注
- (BMKPointAnnotation *)annotation
{
    if (!_annotation) {
        _annotation =[[BMKPointAnnotation alloc]init];
    }
    return _annotation;
}

- (void)viewWillAppear:(BOOL)animated
{
    [_mapView viewWillAppear];
    _mapView.delegate = self; // 此处记得不用的时候需要置nil，否则影响内存的释放
}
- (void)viewWillDisappear:(BOOL)animated
{
    [_mapView viewWillDisappear];
    _mapView.delegate = nil; // 不用时，置nil
}

#pragma mark -viewDidLoad
- (void)viewDidLoad {
    [super viewDidLoad];

    //添加地图View
    [self.view addSubview:self.mapView];
    //开启定位服务
    self.locService = [[BMKLocationService alloc] init];
    self.locService.delegate = self;
    //启动LocationService
    [self.locService startUserLocationService];

    //初始化地图显示位置 上海
    [self setUpLocal];

    //设定是否显示定位图层 及 定位精确度
    _mapView.showsUserLocation = YES;//显示定位图层
    _mapView.userTrackingMode = BMKUserTrackingModeNone;

    //添加位置显示框
    [self addLocationLabel];
    //添加确定按钮
    [self addDoneButton];
}


//初始化地图显示在上海
- (void)setUpLocal
{
    BMKCoordinateRegion region ;//表示范围的结构体
    CLLocationCoordinate2D coor;
    coor.latitude = 31.171321;
    coor.longitude = 121.411398;

    region.center = coor;//中心点
    region.span.latitudeDelta = 0.1;//经度范围（设置为0.1表示显示范围为0.2的纬度范围）
    region.span.longitudeDelta = 0.1;//纬度范围
    [_mapView setRegion:region animated:YES];

}




//添加位置显示框
- (void)addLocationLabel
{
    UILabel *locationLabel = [[UILabel alloc] init];
    locationLabel.backgroundColor = [UIColor whiteColor];
    locationLabel.text = @"寄件地址: ";
    locationLabel.frame = CGRectMake(20, 25, AppWeight-40, 30);
    locationLabel.numberOfLines = 0;
    locationLabel.font = [UIFont systemFontOfSize:12];
    //    把label放在最顶层
    [self.view insertSubview:locationLabel aboveSubview:self.mapView];
    self.locationLabel = locationLabel;
}

//添加确定按钮
- (void)addDoneButton
{
    UIButton *doneButton = [UIButton buttonWithType:UIButtonTypeCustom];
    self.doneButton = doneButton;

    doneButton.frame = CGRectMake(30, AppHeight - 120, AppWeight-60, 45);

    [doneButton setBackgroundColor:[UIColor orangeColor]];
    [doneButton setTitle:@"确  定" forState:UIControlStateNormal];
    [doneButton setTitle:@"确  定" forState:UIControlStateHighlighted];
    [doneButton addTarget:self action:@selector(doneButtonClick:) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:doneButton];
}

//完成按钮 把当前标注的地址传给上一个控制器的textField
- (void)doneButtonClick:(UIButton *)button
{
    NSString *str = self.locationLabel.text;
    str = [str substringFromIndex:6];
   if (_localStringBlock) {
        _localStringBlock(str);
    }
    [self.navigationController popViewControllerAnimated:YES];
}

# pragma mark -BMKMapViewDelegate
//点击屏幕 添加标注
- (void)mapView:(BMKMapView *)mapView onClickedMapBlank:(CLLocationCoordinate2D)coordinate
{
    //拿到点击的经纬度 然后添加标
        CLLocationCoordinate2D coor;
        coor.latitude = coordinate.latitude;
        coor.longitude = coordinate.longitude;
        self.annotation.coordinate = coor;
        [_mapView addAnnotation:self.annotation];

    [self.mapView setCenterCoordinate:coor animated:YES];

    ///反geo检索信息类
    BMKReverseGeoCodeOption *reverseGeocodeSearchOption = [[BMKReverseGeoCodeOption alloc] init];
    reverseGeocodeSearchOption.reverseGeoPoint = coor;

    BOOL flag = [self.geocodesearch reverseGeoCode:reverseGeocodeSearchOption];;
    if (flag) {
        NSLog(@"反地理编码成功");
    }else {
        NSLog(@"反地理编码失败");
    }
}

//根据anntation生成对应的view
- (BMKAnnotationView *)mapView:(BMKMapView *)mapView viewForAnnotation:(id)annotation
{
    NSString *AnnotationViewID = @"renameMark";
    BMKPinAnnotationView *annotationView = (BMKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:AnnotationViewID];
    if (annotationView == nil) {
        annotationView = [[BMKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:AnnotationViewID];
        annotationView.image = [UIImage imageNamed:@"地图-选中"];
    }
    return annotationView;
}

#pragma mark -BMKGeoCodeSearchDelegate
//根据 经纬度 获取 地区信息
- (void)onGetReverseGeoCodeResult:(BMKGeoCodeSearch *)searcher result:(BMKReverseGeoCodeResult *)result errorCode:(BMKSearchErrorCode)error
{
    if (error == BMK_SEARCH_NO_ERROR) {
//        NSLog(@"%@",result.address);
//        NSLog(@"%@",result.addressDetail);
        self.locationLabel.text = [NSString stringWithFormat:@"寄件地址: %@",result.address];
    }else {
        NSLog(@"未找到结果");
    }
}


/**
 * 当选中一个annotation views时，调用此接口
 * @param mapView 地图View
 * @param views 选中的annotation views
 */
//- (void)mapView:(BMKMapView *)mapView didSelectAnnotationView:(BMKAnnotationView *)view
//{
//    _shopCoor = view.annotation.coordinate;
//}
///**
// *  选中气泡调用方法
// *  @param mapView 地图
// *  @param view    annotation
// */
//- (void)mapView:(BMKMapView *)mapView annotationViewForBubble:(BMKAnnotationView *)view
//{
//    MyBMKPointAnnotation *tt = (MyBMKPointAnnotation *)view.annotation;
//    if (tt.shopID) {
//        BusinessIfonUVC *BusinessIfonVC = [[BusinessIfonUVC alloc]init];
//        BusinessIfonVC.shopId = tt.shopID;
//        [self.navigationController pushViewController:BusinessIfonVC animated:YES];
//    }
//}

#pragma mark -BMKLocationServiceDelegate
//处理方向变更信息
- (void)didUpdateUserHeading:(BMKUserLocation *)userLocation
{
//    NSLog(@"heading is %@",userLocation.heading);
    [_mapView updateLocationData:userLocation];
}

//处理位置坐标更新 (定位到位置是,把位置显示到地图正中间,只执行一次)
- (void)didUpdateBMKUserLocation:(BMKUserLocation *)userLocation
{
//    NSLog(@"didUpdateUserLocation lat %f,long %f",userLocation.location.coordinate.latitude,userLocation.location.coordinate.longitude);

    //在地图上更新到用户所在位置 (只执行一次)
    if (userLocation.location.coordinate.latitude != 0 || userLocation.location.coordinate.longitude != 0) {
        static dispatch_once_t onceToken;
        dispatch_once(&onceToken, ^{
            _mapView.centerCoordinate = userLocation.location.coordinate;

            CLLocationCoordinate2D coor;
            coor.latitude = userLocation.location.coordinate.latitude;
            coor.longitude = userLocation.location.coordinate.longitude;

            BMKReverseGeoCodeOption *reverseGeocodeSearchOption = [[BMKReverseGeoCodeOption alloc] init];
            reverseGeocodeSearchOption.reverseGeoPoint = coor;

            BOOL flag = [self.geocodesearch reverseGeoCode:reverseGeocodeSearchOption];;
            if (flag) {
                NSLog(@"反地理编码成功1111111");
            }else {
                NSLog(@"反地理编码失败1111111");
            }
        });
    }
    [_mapView updateLocationData:userLocation];
}

map.jpg