- (void)presentCurrentRouteCourse {

    if (self.routeArray.count <= 0) {
        return;
    }

    [self.naviRoute removeFromMapView];  //清空地图上已有的路线

    AMapGeoPoint *startPoint = [AMapGeoPoint locationWithLatitude:self.startAnnotation.coordinate.latitude longitude:self.startAnnotation.coordinate.longitude]; //起点

    AMapGeoPoint *endPoint = [AMapGeoPoint locationWithLatitude:self.destinationAnnotation.coordinate.latitude longitude:self.destinationAnnotation.coordinate.longitude];  //终点

    //根据已经规划的换乘方案，起点，终点，生成显示方案
    self.naviRoute = [MANaviRoute naviRouteForTransit:self.route.transits[self.currentRouteIndex] startPoint:startPoint endPoint:endPoint];

    [self.naviRoute addToMapView:self.mapView];  //显示到地图上

    UIEdgeInsets edgePaddingRect = UIEdgeInsetsMake(RoutePlanningPaddingEdge, RoutePlanningPaddingEdge, RoutePlanningPaddingEdge, RoutePlanningPaddingEdge);

    //缩放地图使其适应polylines的展示
    [self.mapView setVisibleMapRect:[CommonUtility mapRectForOverlays:self.naviRoute.routePolylines] edgePadding:edgePaddingRect animated:YES];
}

//地图上覆盖物的渲染，可以设置路径线路的宽度，颜色等
- (MAOverlayRenderer *)mapView:(MAMapView *)mapView rendererForOverlay:(id<MAOverlay>)overlay {
    //虚线，如需要步行的
    if ([overlay isKindOfClass:[LineDashPolyline class]]) {
        MAPolylineRenderer *polylineRenderer = [[MAPolylineRenderer alloc] initWithPolyline:((LineDashPolyline *)overlay).polyline];
        polylineRenderer.lineWidth = 6;
        polylineRenderer.lineDash = YES;
        polylineRenderer.strokeColor = [UIColor redColor];
        
        return polylineRenderer;
    }
    
    //路径为单一颜色，比如公交线路目前为blueColor
    if ([overlay isKindOfClass:[MANaviPolyline class]]) {
        MANaviPolyline *naviPolyline = (MANaviPolyline *)overlay;
        MAPolylineRenderer *polylineRenderer = [[MAPolylineRenderer alloc] initWithPolyline:naviPolyline.polyline];
        
        polylineRenderer.lineWidth = 6;
        
        if (naviPolyline.type == MANaviAnnotationTypeWalking){
            polylineRenderer.strokeColor = self.naviRoute.walkingColor;
        }else if (naviPolyline.type == MANaviAnnotationTypeRailway){
            polylineRenderer.strokeColor = self.naviRoute.railwayColor;
        }else{
            polylineRenderer.strokeColor = self.naviRoute.routeColor;
        }
        
        return polylineRenderer;
    }
    
    //showTraffic为YES时，需要带实时路况，路径为多颜色渐变，多用于驾车路线规划，公交路线规划为单一颜色
    if ([overlay isKindOfClass:[MAMultiPolyline class]]) {
        MAMultiColoredPolylineRenderer * polylineRenderer = [[MAMultiColoredPolylineRenderer alloc] initWithMultiPolyline:overlay];
        
        polylineRenderer.lineWidth = 6;
        polylineRenderer.strokeColors = [self.naviRoute.multiPolylineColors copy];
        
        return polylineRenderer;
    }
    
    return nil;
}

//地图上的起始点，终点，拐点的标注，可以自定义图标展示等
- (MAAnnotationView *)mapView:(MAMapView *)mapView viewForAnnotation:(id<MAAnnotation>)annotation {
    if ([annotation isKindOfClass:[MAPointAnnotation class]]) {
        
        //标注的view的初始化和复用
        static NSString *routePlanningCellIdentifier = @"RoutePlanningCellIdentifier";
        
        MAAnnotationView *poiAnnotationView = (MAAnnotationView*)[self.mapView dequeueReusableAnnotationViewWithIdentifier:routePlanningCellIdentifier];
        
        if (poiAnnotationView == nil) {
            poiAnnotationView = [[MAAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:routePlanningCellIdentifier];
        }
        
        poiAnnotationView.canShowCallout = YES;
        poiAnnotationView.image = nil;
        
        //拐点的图标标注
        if ([annotation isKindOfClass:[MANaviAnnotation class]]) {
            switch (((MANaviAnnotation*)annotation).type) {
                case MANaviAnnotationTypeRailway:
                    poiAnnotationView.image = [UIImage imageNamed:@"railway_station"];
                    break;
                    
                case MANaviAnnotationTypeBus:
                    poiAnnotationView.image = [UIImage imageNamed:@"bus"];
                    break;
                    
                case MANaviAnnotationTypeDrive:
                    poiAnnotationView.image = [UIImage imageNamed:@"car"];
                    break;
                    
                case MANaviAnnotationTypeWalking:
                    poiAnnotationView.image = [UIImage imageNamed:@"man"];
                    break;
                    
                default:
                    break;
            }
        }else{
            //起点，终点的图标标注
            if ([[annotation title] isEqualToString:(NSString*)RoutePlanningViewControllerStartTitle]) {
                poiAnnotationView.image = [UIImage imageNamed:@"startPoint"];  //起点
            } else if ([[annotation title] isEqualToString:(NSString*)RoutePlanningViewControllerDestinationTitle]) {
                poiAnnotationView.image = [UIImage imageNamed:@"endPoint"];  //终点
            }
            
        }
        
        return poiAnnotationView;
    }
    
    return nil;
}

//根据transit的具体字段，显示信息
- (void)setUpViewsWithData {

    NSInteger hours = self.transit.duration / 3600;
    NSInteger minutes = (NSInteger)(self.transit.duration / 60) % 60;
    self.timeInfoLabel.text = [NSString stringWithFormat:@"%u小时%u分钟（%u公里）",(unsigned)hours,(unsigned)minutes,(unsigned)self.transit.distance / 1000];
    self.taxiCostInfoLabel.text = [NSString stringWithFormat:@"打车约%.0f元",self.route.taxiCost];

    self.routeDetailDataArray = @[].mutableCopy;
    [self.routeDetailDataArray addObject:@{RoutePathDetailStepInfoImageName : @"start",RoutePathDetailStepInfoText : @"开始出发"}]; // 图片的名字，具体步骤的文字信息

    for (AMapSegment *segment in self.transit.segments) {
        AMapRailway *railway = segment.railway; //火车
        AMapBusLine *busline = [segment.buslines firstObject];  // 地铁或者公交线路
        AMapWalking *walking = segment.walking;  //搭乘地铁或者公交前的步行信息

        if (walking.distance) {
            NSString *walkInfo = [NSString stringWithFormat:@"步行%u米",(unsigned)walking.distance];
            [self.routeDetailDataArray addObject:@{RoutePathDetailStepInfoImageName : @"walkRoute",RoutePathDetailStepInfoText : walkInfo}];
        }

        if (busline.name) {
            NSString *busImageName = @"busRoute";
            if ([busline.type isEqualToString:@"地铁线路"]) { //区分公交和地铁
                busImageName = @"underGround";
            }

            //viaBusStops途径的公交车站的数组，如需具体站名，可解析。
            NSString *busInfoText = [NSString stringWithFormat:@"乘坐%@，在 %@ 上车，途经 %u 站，在 %@ 下车",busline.name,busline.departureStop.name,(unsigned)(busline.viaBusStops.count + 1),busline.arrivalStop.name];
            [self.routeDetailDataArray addObject:@{RoutePathDetailStepInfoImageName : busImageName,RoutePathDetailStepInfoText : busInfoText}];

        } else if (railway.uid) {
            [self.routeDetailDataArray addObject:@{RoutePathDetailStepInfoImageName : @"railwayRoute",RoutePathDetailStepInfoText : railway.name}];
        }
    }

    [self.routeDetailDataArray addObject:@{RoutePathDetailStepInfoImageName : @"end",RoutePathDetailStepInfoText : @"抵达终点"}];

}