ios百度地图开发之路径规划

效果图如下:

#import <MapKit/MapKit.h>
#import <BaiduMapAPI_Map/BMKMapView.h>
#import <BaiduMapAPI_Location/BMKLocationService.h>
#import <BaiduMapAPI_Search/BMKSearchComponent.h>
#import <BaiduMapAPI_Map/BMKPolylineView.h>
#import <BaiduMapAPI_Utils/BMKGeometry.h>
#import "HXRouteViewController.h"

#define MYBUNDLE_NAME @ "mapapi.bundle"
#define MYBUNDLE_PATH [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent: MYBUNDLE_NAME]
#define MYBUNDLE [NSBundle bundleWithPath: MYBUNDLE_PATH]

/** * 路线的标注 */
@interface RouteAnnotation : BMKPointAnnotation
{
    int _type; ///<0:起点 1：终点 2：公交 3：地铁 4:驾乘 5:途经点
    int _degree;
}

@property (nonatomic) int type;
@property (nonatomic) int degree;
@end

@implementation RouteAnnotation

@synthesize type = _type;
@synthesize degree = _degree;
@end

@interface HXRouteViewController ()<BMKMapViewDelegate, BMKRouteSearchDelegate>{
    BMKMapView *_mapView;
    NSString *_cityName;
    BMKRouteSearch *_routesearch;
}

/** * 返回按钮 */
//@property (nonatomic , weak)UIButton *preBtn;

/** * 存放标注数组 */
@property(nonatomic , strong) NSMutableArray *annotations;

/** * 用户当前位置 */
@property(nonatomic , strong) BMKUserLocation *userLocation;

@property(nonatomic , strong) HXAnnotation *anno;

@end

@implementation HXRouteViewController

- (NSString*)getMyBundlePath1:(NSString *)filename
{

    NSBundle * libBundle = MYBUNDLE ;
    if ( libBundle && filename ){
        NSString * s=[[libBundle resourcePath ] stringByAppendingPathComponent:filename];
        return s;
    }
    return nil ;
}

- (void)viewDidLoad
{
    [super viewDidLoad];

    UIView *statusView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, SCREENW, 20)];
    statusView.backgroundColor = [UIColor colorWithR:46 G:139 B:84 alpha:1.];
    [self.view addSubview:statusView];

    _routesearch = [[BMKRouteSearch alloc] init];
    _routesearch.delegate = self;

    //初始化BMKMapView并设置代理
    _mapView = [[BMKMapView alloc] initWithFrame:CGRectMake(0, 20, SCREENW, SCREENH - 140)];
    [self.view addSubview:_mapView];
    _mapView.delegate = self;

    _mapView.buildingsEnabled = YES;
    _mapView.overlookEnabled = YES;
    _mapView.showMapScaleBar = YES;
    _mapView.overlooking = -45;

    //设置导航按钮
    [self setupNavButton];
    //驾车路线
    [self showDriveSearch];
}

#pragma mark ActionSheet
- (void)actionSheet:(FMActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex{
    if (buttonIndex == 0) {
        //打开系统自带的地图
        [self openIOSMapNav];
    } else if (buttonIndex == 1) {
        //打开百度地图客户端导航
        [self opsenBaiduMap];
    }
}

#pragma mark 打开系统自带的地图
-(void)openIOSMapNav{
    CLLocationCoordinate2D endCoor = CLLocationCoordinate2DMake([self.mendDetail.dimensions doubleValue], [self.mendDetail.longitude doubleValue]);
    MKMapItem *currentLocation = [MKMapItem mapItemForCurrentLocation];
    MKMapItem *toLocation = [[MKMapItem alloc] initWithPlacemark:[[MKPlacemark alloc] initWithCoordinate:endCoor addressDictionary:nil]];
    toLocation.name = self.mendDetail.shopName;
    [MKMapItem openMapsWithItems:@[currentLocation, toLocation] launchOptions:@{MKLaunchOptionsDirectionsModeKey: MKLaunchOptionsDirectionsModeDriving,MKLaunchOptionsShowsTrafficKey: [NSNumber numberWithBool:YES]}];
}

#pragma mark 打开百度地图客户端
-(void)opsenBaiduMap{
    double latitude =self.coordinate.latitude;
    double longitude =self.coordinate.longitude;
    NSString *urlString = [NSString stringWithFormat:@"baidumap://map/direction?origin=%f,%f&destination=%@,%@&mode=driving&region=北京",latitude,longitude,self.mendDetail.dimensions,self.mendDetail.longitude];
    urlString = [urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
    NSURL *mapUrl = [NSURL URLWithString:urlString];
    if ([[UIApplication sharedApplication] canOpenURL:mapUrl]) {
        [[UIApplication sharedApplication] openURL:mapUrl];
    } else {
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示" message:@"您的手机没有安装百度地图" delegate:nil cancelButtonTitle:nil otherButtonTitles:@"确定", nil];
        [alert show];
    }

}

#pragma mark -显示大头针
- (BMKAnnotationView *)mapView:(BMKMapView *)mapView viewForAnnotation:(id <BMKAnnotation>)annotation{

    if (![annotation isKindOfClass:[RouteAnnotation class]]) return nil;
    return [self getRouteAnnotationView:mapView viewForAnnotation:(RouteAnnotation *)annotation];
}

#pragma mark 获取路线的标注，显示到地图
- (BMKAnnotationView*)getRouteAnnotationView:(BMKMapView *)mapview viewForAnnotation:(RouteAnnotation*)routeAnnotation{

    BMKAnnotationView *view = nil;
    switch (routeAnnotation.type) {
        case 0:
        {
            view = [mapview dequeueReusableAnnotationViewWithIdentifier:@"start_node"];
            if (view == nil) {
                view = [[BMKAnnotationView alloc] initWithAnnotation:routeAnnotation reuseIdentifier:@"start_node"];
                view.image = [UIImage imageWithContentsOfFile:[self getMyBundlePath1:@"images/icon_nav_start"]];
                view.centerOffset = CGPointMake(0, -(view.frame.size.height * 0.5));
                view.canShowCallout = true;
            }
            view.annotation = routeAnnotation;
        }
            break;
        case 1:
        {
            view = [mapview dequeueReusableAnnotationViewWithIdentifier:@"end_node"];
            if (view == nil) {
                view = [[BMKAnnotationView alloc] initWithAnnotation:routeAnnotation reuseIdentifier:@"end_node"];
                view.image = [UIImage imageWithContentsOfFile:[self getMyBundlePath1:@"images/icon_nav_end"]];
                view.centerOffset = CGPointMake(0, -(view.frame.size.height * 0.5));
                view.canShowCallout = true;
            }
            view.annotation =routeAnnotation;
        }
            break;
        case 4:
        {
            view = [mapview dequeueReusableAnnotationViewWithIdentifier:@"route_node"];
            if (view == nil) {
                view = [[BMKAnnotationView alloc] initWithAnnotation:routeAnnotation reuseIdentifier:@"route_node"];
                view.canShowCallout = true;
            } else {
                [view setNeedsDisplay];
            }
            UIImage *image = [UIImage imageWithContentsOfFile:[self getMyBundlePath1:@"images/icon_direction"]];
            view.image = [image imageRotatedByDegrees:routeAnnotation.degree];
            view.annotation = routeAnnotation;
        }
            break;
        default:
            break;
    }
    return view;
}

#pragma mark 显示驾车按钮
-(void)showDriveSearch{
    //线路检索节点信息
    BMKPlanNode *start = [[BMKPlanNode alloc] init];
    start.pt = self.coordinate;
    start.cityName = @"北京市";
    BMKPlanNode *end = [[BMKPlanNode alloc] init];
    CLLocationCoordinate2D endCoordinate = CLLocationCoordinate2DMake([self.mendDetail.dimensions doubleValue], [self.mendDetail.longitude doubleValue]);
    end.pt = endCoordinate;
    end.cityName = @"北京市";
    BMKDrivingRoutePlanOption *drivingRouteSearchOption = [[BMKDrivingRoutePlanOption alloc] init];
    drivingRouteSearchOption.from = start;
    drivingRouteSearchOption.to = end;
    BOOL flag = [_routesearch drivingSearch:drivingRouteSearchOption];
    if (flag) {
    }
}

#pragma mark 返回驾乘搜索结果
- (void)onGetDrivingRouteResult:(BMKRouteSearch*)searcher result:(BMKDrivingRouteResult*)result errorCode:(BMKSearchErrorCode)error
{
    NSArray* array = [NSArray arrayWithArray:_mapView.annotations];
    [_mapView removeAnnotations:array];
    array = [NSArray arrayWithArray:_mapView.overlays];
    [_mapView removeOverlays:array];
    if (error == BMK_SEARCH_NO_ERROR) {
        //表示一条驾车路线
        BMKDrivingRouteLine* plan = (BMKDrivingRouteLine*)[result.routes objectAtIndex:0];
        // 计算路线方案中的路段数目
        int size = (int)[plan.steps count];
        int planPointCounts = 0;
        for (int i = 0; i < size; i++) {
            //表示驾车路线中的一个路段
            BMKDrivingStep* transitStep = [plan.steps objectAtIndex:i];
            if(i==0){
                RouteAnnotation* item = [[RouteAnnotation alloc]init];
                item.coordinate = plan.starting.location;
                item.title = @"起点";
                item.type = 0;
                [_mapView addAnnotation:item]; // 添加起点标注

            }else if(i==size-1){
                RouteAnnotation* item = [[RouteAnnotation alloc]init];
                item.coordinate = plan.terminal.location;
                item.title = @"终点";
                item.type = 1;
                [_mapView addAnnotation:item]; // 添加终点标注
            }
            //添加annotation节点
            RouteAnnotation* item = [[RouteAnnotation alloc]init];
            item.coordinate = transitStep.entrace.location;
            item.title = transitStep.entraceInstruction;
            item.degree = transitStep.direction * 30;
            item.type = 4;
            [_mapView addAnnotation:item];

            //轨迹点总数累计
            planPointCounts += transitStep.pointsCount;
        }
        // 添加途经点
        if (plan.wayPoints) {
            for (BMKPlanNode* tempNode in plan.wayPoints) {
                RouteAnnotation* item = [[RouteAnnotation alloc]init];
                item.coordinate = tempNode.pt;
                item.type = 5;
                item.title = tempNode.name;
                [_mapView addAnnotation:item];
            }
        }
        //轨迹点
        BMKMapPoint * temppoints = new BMKMapPoint[planPointCounts];
        int i = 0;
        for (int j = 0; j < size; j++) {
            BMKDrivingStep* transitStep = [plan.steps objectAtIndex:j];
            int k=0;
            for(k=0;k<transitStep.pointsCount;k++) {
                temppoints[i].x = transitStep.points[k].x;
                temppoints[i].y = transitStep.points[k].y;
                i++;
            }

        }
        // 通过points构建BMKPolyline
        BMKPolyline* polyLine = [BMKPolyline polylineWithPoints:temppoints count:planPointCounts];
        [_mapView addOverlay:polyLine]; // 添加路线overlay
        delete []temppoints;
        [self mapViewFitPolyLine:polyLine];
    }
}

#pragma mark 根据overlay生成对应的View
-(BMKOverlayView *)mapView:(BMKMapView *)mapView viewForOverlay:(id<BMKOverlay>)overlay{
    if ([overlay isKindOfClass:[BMKPolyline class]]) {
        BMKPolylineView* polylineView = [[BMKPolylineView alloc] initWithOverlay:overlay];
        polylineView.fillColor = [[UIColor cyanColor] colorWithAlphaComponent:1];
        polylineView.strokeColor = [[UIColor blueColor] colorWithAlphaComponent:0.7];
        polylineView.lineWidth = 3.0;
        return polylineView;
    }
    return nil;
}

#pragma mark 根据polyline设置地图范围
- (void)mapViewFitPolyLine:(BMKPolyline *) polyLine {
    CGFloat ltX, ltY, rbX, rbY;

    if (polyLine.pointCount < 1) return;
    BMKMapPoint pt = polyLine.points[0];
    ltX = pt.x, ltY = pt.y;
    rbX = pt.x, rbY = pt.y;

    for (int i = 0; i < polyLine.pointCount; i++) {
        BMKMapPoint pt = polyLine.points[i];
        if (pt.x < ltX) {
            ltX = pt.x;
        }
        if (pt.x > rbX) {
            rbX = pt.x;
        }
        if (pt.y > ltY) {
            ltY = pt.y;
        }
        if (pt.y < rbY) {
            rbY = pt.y;
        }
    }
    BMKMapRect rect;
    rect.origin = BMKMapPointMake(ltX , ltY);
    rect.size = BMKMapSizeMake(rbX - ltX, rbY - ltY);
    [_mapView setVisibleMapRect:rect];
    _mapView.zoomLevel = _mapView.zoomLevel - 0.3;
}

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


@end