Offline maps about mapbox-xamarin-forms

[fleuverouge]

Hi @pepobit For now the offline function is only supported in iOS.
To download a map style:

var offlineService = DependencyService.Get<Naxam.Controls.Mapbox.Forms.IOfflineStorageService>();
var region = new OfflinePackRegion()
                {
                    StyleURL = "<your map style url here>",
                    MaximumZoomLevel = 14,
                    MinimumZoomLevel = 1,
                    Bounds = new CoordinateBounds()
                    {
                        NorthEast = new Position()
                        {
                            Lat = 55.800,
                            Long = 9.000
                        },
                        SouthWest = new Position()
                        {
                            Lat = 55.650,
                            Long = 8.700
                        }
                    }
                };
             offlineService.DownloadMap(region, new System.Collections.Generic.Dictionary<string, string>() {
                    {"name", "test"}
                });

To observe download progress:

offlineService.OfflinePackProgressChanged += (sender, e) => {
                var progress = e.OfflinePack.Progress;
                float percentage = 0;
                if (progress.CountOfResourcesExpected > 0)
                {
                    percentage = (float)progress.CountOfResourcesCompleted / progress.CountOfResourcesExpected;
                }
                System.Diagnostics.Debug.WriteLine($"Downloaded resources: {progress.CountOfResourcesCompleted} ({percentage * 100} %)");
                System.Diagnostics.Debug.WriteLine($"Downloaded tiles: {progress.CountOfTilesCompleted}");
                if (progress.CountOfResourcesExpected == progress.CountOfResourcesCompleted) {
                    System.Diagnostics.Debug.WriteLine("Download completed");
                }
            };

To get offline packs:

OfflinePack[] packs = await offlineService.GetPacks();

The first time you get packs, the packs' states may not be correct, since "The state and progress of an inactive or completed pack are computed lazily". So you'll need to call void RequestPackProgress(OfflinePack pack) to observe the packs' states.
For more information please read MapBox's documents about Offline maps and MGLOfflinePack

[tuyen-vuduc]

@pepobit I am going to close this issue due to no response from you. If you still get issue, plz reopen.

[swapnil591]

offline map not working in android