iOS調(diào)用百度地圖踩坑（一）

1.閱讀百度地圖官方文檔
2.配置調(diào)用百度地圖的環(huán)境
3.實現(xiàn)地圖的調(diào)用
4.下面的代碼主要實現(xiàn)了傳入省市，能定位到選擇的省市區(qū)域 ，可設置蒙版，然后點擊地圖上的一個建筑物能拿到點擊的地理位置。
5.得到的就是選擇的地址。

NSString *address = [NSString stringWithFormat:@"%@%@",self.addressText,self.addressText1];

代碼

//    百度地圖
    // 要使用百度地圖，請先啟動BaiduMapManager
    _mapManager = [[BMKMapManager alloc]init];
    // 如果要關注網(wǎng)絡及授權(quán)驗證事件，請設定     generalDelegate參數(shù)
    BOOL ret = [_mapManager start:BaiduAppKey  generalDelegate:nil];
    if (!ret) {
        NSLog(@"manager start failed!");
    }

@interface LogingMapViewController ()<BMKMapViewDelegate,BMKLocationServiceDelegate,BMKDistrictSearchDelegate,BMKGeoCodeSearchDelegate>
{
    BMKLocationService * _locService;
}

@property (nonatomic,strong)NSString *cityText;//傳入地圖的省
@property (nonatomic,strong)NSString *provinceText;//傳入地圖的市

@property (nonatomic, strong) BMKMapView *mapView; // 地圖
@property (nonatomic, strong) BMKLocationService *locService; // 位置
@property (nonatomic, strong) BMKDistrictSearch  *districtSearch; // 檢索
@property (nonatomic, strong) BMKPointAnnotation *pointAnnotation;
@property (nonatomic, strong) BMKReverseGeoCodeOption *reGeo;
@property (nonatomic, strong) BMKGeoCodeSearch *searchAddress;


-(void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    [_mapView viewWillAppear];
    _mapView.delegate = self;
    _districtSearch.delegate = self; // 此處記得不用的時候需要置nil，否則影響內(nèi)存的釋放
}

-(void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];
    [_mapView viewWillDisappear];
    _mapView.delegate = nil;
    _districtSearch.delegate = nil; // 不用時，置nil
}


#pragma mark ****************百度地圖相關****************```
- (void)setupMapView
{
    /* 地圖 */
    _mapView = [[BMKMapView alloc]initWithFrame:CGRectMake(20 *kScale, 230 *kScale, 710 *kScale, 784 *kScale)];
    [self.view addSubview:_mapView];
    //    _mapView.mapType = BMKMapTypeNone;
    _mapView.showMapScaleBar = YES;//顯示比例尺
    _mapView.zoomLevel=17;//地圖顯示的級別
    
    /* 檢索 */
    //適配ios7
    if( ([[[UIDevice currentDevice] systemVersion] doubleValue]>=7.0)) {
        //        self.edgesForExtendedLayout=UIRectEdgeNone;
        self.navigationController.navigationBar.translucent = NO;
    }
    
    _districtSearch = [[BMKDistrictSearch alloc] init];
    
    /* 位置 */
    _locService = [[BMKLocationService alloc]init];
    _locService.delegate = self;
    _searchAddress = [[BMKGeoCodeSearch alloc] init];
    _searchAddress.delegate = self;
}

/**
 *用戶位置更新后，會調(diào)用此函數(shù)
 *@param userLocation 新的用戶位置
 */
- (void)didUpdateBMKUserLocation:(BMKUserLocation *)userLocation{
    
    BMKCoordinateRegion region;
    
    region.center.latitude  = userLocation.location.coordinate.latitude;
    region.center.longitude = userLocation.location.coordinate.longitude;
    region.span.latitudeDelta = 0;
    region.span.longitudeDelta = 0;
    
    JMLog(@"當前的坐標是:%f,%f",userLocation.location.coordinate.latitude,userLocation.location.coordinate.longitude);
    
    [_mapView updateLocationData:userLocation];
    [_locService stopUserLocationService];//取消定位  這個一定要寫，不然無法移動定位了
    _mapView.centerCoordinate = userLocation.location.coordinate;
    JMLog(@" _mapView.centerCoordinate------%f-----%f", _mapView.centerCoordinate.latitude, _mapView.centerCoordinate.longitude);
    if (_messageView == nil && _locationView == nil) {
    
    }
    
}

/** ==================================標注======================================== **/

/**
 *點中底圖空白處會回調(diào)此接口
 *@param mapView 地圖View
 *@param coordinate 空白處坐標點的經(jīng)緯度
 */
-(void)mapView:(BMKMapView *)mapView onClickedMapBlank:(CLLocationCoordinate2D)coordinate
{
    NSLog(@"onClickedMapBlank-latitude==%f,longitude==%f",coordinate.latitude,coordinate.longitude);
    NSString* showmeg = [NSString stringWithFormat:@"您點擊了地圖空白處(blank click).\r\n當前經(jīng)度:%f,當前緯度:%f,\r\nZoomLevel=%d;RotateAngle=%d;OverlookAngle=%d", coordinate.longitude,coordinate.latitude,(int)_mapView.zoomLevel,_mapView.rotation,_mapView.overlooking];
    
    // 點擊之前刪除所有標注
    NSArray * arrAnimation = [[NSArray alloc] initWithArray:_mapView.annotations];
    [_mapView removeAnnotations:arrAnimation];
    // 取消編輯
//    [_cityTF resignFirstResponder];
//    [_provinceTF resignFirstResponder];
    
    // 添加標注
    [self addPointAnnotation:coordinate];
}

/**
 * 點擊地圖上面建筑物標記事件,有建筑物的位置點擊事件
 */
-(void)mapView:(BMKMapView *)mapView onClickedMapPoi:(BMKMapPoi *)mapPoi
{
    self.addressText1 = mapPoi.text;
    JMLog(@"點擊onClickedMapPoi---%@",mapPoi.text);

    CLLocationCoordinate2D coordinate = mapPoi.pt;
    // 點擊之前刪除所有標注
    NSArray * arrAnimation = [[NSArray alloc] initWithArray:_mapView.annotations];
    [_mapView removeAnnotations:arrAnimation];
    //添加標注
    [self addPointAnnotation:coordinate];
}

#pragma mark 添加標注
-(void)addPointAnnotation:(CLLocationCoordinate2D)coordinate
{
    // 添加一個PointAnnotation
    _pointAnnotation = [[BMKPointAnnotation alloc]init];
    CLLocationCoordinate2D coor;
    coor.latitude = coordinate.latitude;
    coor.longitude = coordinate.longitude;
    _pointAnnotation.coordinate = coor;
    _pointAnnotation.title = @"地址:";
    [_mapView addAnnotation:_pointAnnotation];
    
    ///反geo檢索信息類
    _reGeo = [[BMKReverseGeoCodeOption alloc]init];
    _reGeo.reverseGeoPoint = coor;
    [_searchAddress reverseGeoCode:_reGeo];
    BOOL flag = [_searchAddress reverseGeoCode:_reGeo];
    if (!flag) {
        NSLog(@"search failed!");
    }
}


/** ==================================檢索======================================== **/
#pragma mark ************點擊檢索***************
- (void)clickdistrictSearch
{
    [self.view endEditing:YES];
    
    BMKDistrictSearchOption *option = [[BMKDistrictSearchOption alloc] init];
//    傳入檢索條件 省市text
    option.city = _provinceText;
    option.district = _cityText;
    BOOL flag = [_districtSearch districtSearch:option];
    if (flag) {
        NSLog(@"district檢索發(fā)送成功");
    } else {
        NSLog(@"district檢索發(fā)送失敗");
    }
}

/**
 *返回行政區(qū)域搜索結(jié)果
 *@param searcher 搜索對象
 *@param result 搜索結(jié)BMKDistrictSearch果
 *@param error 錯誤號，@see BMKSearchErrorCode
 */
- (void)onGetDistrictResult:(BMKDistrictSearch *)searcher result:(BMKDistrictResult *)result errorCode:(BMKSearchErrorCode)error {
    NSLog(@"onGetDistrictResult error: %d", error);
    NSArray *overlayArray = [NSArray arrayWithArray:_mapView.overlays];
    [_mapView removeOverlays:overlayArray];
    if (error == BMK_SEARCH_NO_ERROR) {
        NSLog(@"\nname:%@\ncode:%d\ncenter latlon:%lf,%lf", result.name, (int)result.code, result.center.latitude, result.center.longitude);
        
        BOOL flag = YES;
        for (NSString *path in result.paths) {
            BMKPolygon* polygon = [self transferPathStringToPolygon:path];
            if (polygon) {
                [_mapView addOverlay:polygon]; // 添加overlay
                if (flag) {
                    [self mapViewFitPolygon:polygon];
                    flag = NO;
                }
            }
        }
    }
}
#pragma mark - ***********設置選中地的蒙版*********** 可注釋掉
//- (BMKOverlayView*)mapView:(BMKMapView *)map viewForOverlay:(id<BMKOverlay>)overlay
//{
//    if ([overlay isKindOfClass:[BMKPolygon class]]) {
//        BMKPolygonView *polygonView = [[BMKPolygonView alloc] initWithOverlay:overlay];
//        polygonView.strokeColor = [UIColor colorWithRed:1 green:0 blue:0 alpha:0.6];
//        polygonView.fillColor = [UIColor colorWithRed:1 green:1 blue:0 alpha:0.4];
//        polygonView.lineWidth = 1;
//        polygonView.lineDash = YES;
//        return polygonView;
//    }
//    return nil;
//}

//根據(jù)polygone設置地圖范圍
- (void)mapViewFitPolygon:(BMKPolygon *) polygon {
    CGFloat leftTopX, leftTopY, rightBottomX, rightBottomY;
    if (polygon.pointCount < 1) {
        return;
    }
    BMKMapPoint pt = polygon.points[0];
    // 左上角頂點
    leftTopX = pt.x;
    leftTopY = pt.y;
    // 右下角頂點
    rightBottomX = pt.x;
    rightBottomY = pt.y;
    for (int i = 1; i < polygon.pointCount; i++) {
        BMKMapPoint pt = polygon.points[i];
        leftTopX = pt.x < leftTopX ? pt.x : leftTopX;
        leftTopY = pt.y < leftTopY ? pt.y : leftTopY;
        rightBottomX = pt.x > rightBottomX ? pt.x : rightBottomX;
        rightBottomY = pt.y > rightBottomY ? pt.y : rightBottomY;
    }
    BMKMapRect rect;
    rect.origin = BMKMapPointMake(leftTopX, leftTopY);
    rect.size = BMKMapSizeMake(rightBottomX - leftTopX, rightBottomY - leftTopY);
    UIEdgeInsets padding = UIEdgeInsetsMake(30, 0, 100, 0);
    BMKMapRect fitRect = [_mapView mapRectThatFits:rect edgePadding:padding];
    [_mapView setVisibleMapRect:fitRect];
}
- (BMKPolygon*)transferPathStringToPolygon:(NSString*) path {
    if (path == nil || path.length < 1) {
        return nil;
    }
    NSArray *pts = [path componentsSeparatedByString:@";"];
    if (pts == nil || pts.count < 1) {
        return nil;
    }
    BMKMapPoint *points = new BMKMapPoint[pts.count];
    NSInteger index = 0;
    for (NSString *ptStr in pts) {
        if (ptStr && [ptStr rangeOfString:@","].location != NSNotFound) {
            NSRange range = [ptStr rangeOfString:@","];
            NSString *xStr = [ptStr substringWithRange:NSMakeRange(0, range.location)];
            NSString *yStr = [ptStr substringWithRange:NSMakeRange(range.location + range.length, ptStr.length - range.location - range.length)];
            if (xStr && xStr.length > 0 && [xStr respondsToSelector:@selector(doubleValue)]
                && yStr && yStr.length > 0 && [yStr respondsToSelector:@selector(doubleValue)]) {
                points[index] = BMKMapPointMake(xStr.doubleValue, yStr.doubleValue);
                index++;
            }
        }
    }
    BMKPolygon *polygon = nil;
    if (index > 0) {
        polygon = [BMKPolygon polygonWithPoints:points count:index];
    }
    delete [] points;
    return polygon;
}



/** ==================================街道======================================== **/

#pragma mark 根據(jù)經(jīng)緯度返回點擊的位置的名稱
-(void)onGetReverseGeoCodeResult:(BMKGeoCodeSearch *)searcher result:(BMKReverseGeoCodeResult *)result errorCode:(BMKSearchErrorCode)error
{
//    得到點擊的位置
    JMLog(@"%@",result.address);
    self.addressText = result.address;
    _pointAnnotation.subtitle = result.address;
    
    //    UIAlertController * alert = [UIAlertController alertControllerWithTitle:result.address message:nil preferredStyle:UIAlertControllerStyleAlert];
    //    UIAlertAction * action = [UIAlertAction actionWithTitle:@"確定" style:UIAlertActionStyleCancel handler:nil];
    //    [alert addAction:action];
    //    [self presentViewController:alert animated:YES completion:nil];
}

#pragma mark 店家annotation彈出的泡泡時，調(diào)用
-(void)mapView:(BMKMapView *)mapView annotationViewForBubble:(BMKAnnotationView *)view
{
    NSLog(@"點擊泡泡");
}
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