iOS - 高德地圖將地圖的多點連線

@property (nonatomic, strong) MAPolyline *commonPoly;

#pragma mark -- 將地圖的點連線
- (void)createBrokenLine
{
    [self.mapView removeOverlay:_commonPoly];
    CLLocationCoordinate2D commonPolyLineCoords[self.taskList.count];
    for (int i =0; i < self.taskList.count; i ++) {
        SDHomeNewTaskModel *model = self.taskList[i];
        commonPolyLineCoords[i].longitude = model.lng;
        commonPolyLineCoords[i].latitude = model.lat;
    }
    //構造折線對象
     _commonPoly = [MAPolyline polylineWithCoordinates:commonPolyLineCoords count:self.taskList.count];
    //在地圖上添加折線對象
    [self.mapView addOverlay:_commonPoly];
}
- (MAOverlayRenderer *)mapView:(MAMapView *)mapView rendererForOverlay:(id <MAOverlay>)overlay
{
    if ([overlay isKindOfClass:[MAPolyline class]])
    {
        MAPolylineRenderer *polylineRenderer = [[MAPolylineRenderer alloc] initWithPolyline:overlay];
        
        polylineRenderer.lineWidth    = 8.f;
        polylineRenderer.strokeColor  = [UIColor colorWithRed:0 green:1 blue:0 alpha:0.6];
        polylineRenderer.lineJoinType = kMALineJoinRound;
        polylineRenderer.lineCapType  = kMALineCapRound;
        
        return polylineRenderer;
    }
    return nil;
}
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