Release 0.4.8 with Android file imports

Platforms/Android/MainActivity.cs

@@ -1,10 +1,75 @@
-using Android.App;
+using Android.App;
+using Android.Content;
 using Android.Content.PM;
+using Android.Database;
 using Android.OS;
+using Android.Provider;
+using LMEMappeCatastaliApp.Services;
 
 namespace LMEMappeCatastaliApp;
 
-[Activity(Theme = "@style/Maui.SplashTheme", MainLauncher = true, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation | ConfigChanges.UiMode | ConfigChanges.ScreenLayout | ConfigChanges.SmallestScreenSize | ConfigChanges.Density)]
+[Activity(Theme = "@style/Maui.SplashTheme", MainLauncher = true, LaunchMode = LaunchMode.SingleTop, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation | ConfigChanges.UiMode | ConfigChanges.ScreenLayout | ConfigChanges.SmallestScreenSize | ConfigChanges.Density)]
+[IntentFilter([Intent.ActionView], Categories = [Intent.CategoryDefault, Intent.CategoryBrowsable], DataMimeType = "application/json")]
+[IntentFilter([Intent.ActionView], Categories = [Intent.CategoryDefault, Intent.CategoryBrowsable], DataMimeType = "application/geo+json")]
+[IntentFilter([Intent.ActionView], Categories = [Intent.CategoryDefault, Intent.CategoryBrowsable], DataMimeType = "application/geojson")]
+[IntentFilter([Intent.ActionView], Categories = [Intent.CategoryDefault, Intent.CategoryBrowsable], DataMimeType = "application/vnd.google-earth.kml+xml")]
+[IntentFilter([Intent.ActionView], Categories = [Intent.CategoryDefault, Intent.CategoryBrowsable], DataMimeType = "application/vnd.google-earth.kmz")]
+[IntentFilter([Intent.ActionView], Categories = [Intent.CategoryDefault, Intent.CategoryBrowsable], DataMimeType = "application/xml")]
+[IntentFilter([Intent.ActionView], Categories = [Intent.CategoryDefault, Intent.CategoryBrowsable], DataMimeType = "text/xml")]
+[IntentFilter([Intent.ActionView], Categories = [Intent.CategoryDefault, Intent.CategoryBrowsable], DataMimeType = "application/zip")]
+[IntentFilter([Intent.ActionView], Categories = [Intent.CategoryDefault, Intent.CategoryBrowsable], DataMimeType = "application/x-zip-compressed")]
+[IntentFilter([Intent.ActionView], Categories = [Intent.CategoryDefault, Intent.CategoryBrowsable], DataMimeType = "application/octet-stream")]
 public class MainActivity : MauiAppCompatActivity
 {
+    protected override void OnCreate(Bundle? savedInstanceState)
+    {
+        base.OnCreate(savedInstanceState);
+        QueueViewedFile(Intent);
+    }
+
+    protected override void OnNewIntent(Intent? intent)
+    {
+        base.OnNewIntent(intent);
+        Intent = intent;
+        QueueViewedFile(intent);
+    }
+
+    private void QueueViewedFile(Intent? intent)
+    {
+        if (intent?.Action == Android.Content.Intent.ActionView && intent.Data is not null)
+        {
+            _ = CopyViewedFileAsync(intent);
+        }
+    }
+
+    private async Task CopyViewedFileAsync(Intent intent)
+    {
+        try
+        {
+            var uri = intent.Data!;
+            var fileName = ReadDisplayName(uri) ?? $"file-{Guid.NewGuid():N}";
+            fileName = string.Concat(fileName.Select(character => Path.GetInvalidFileNameChars().Contains(character) ? '_' : character));
+            var directory = Path.Combine(FileSystem.CacheDirectory, "Incoming");
+            Directory.CreateDirectory(directory);
+            var path = Path.Combine(directory, $"{Guid.NewGuid():N}-{fileName}");
+            await using var input = ContentResolver!.OpenInputStream(uri)
+                ?? throw new IOException("Impossibile leggere il file selezionato.");
+            await using var output = File.Create(path);
+            await input.CopyToAsync(output);
+            IncomingFileService.Shared.Enqueue(new IncomingFile(path, fileName, intent.Type));
+        }
+        catch (Exception error)
+        {
+            System.Diagnostics.Debug.WriteLine($"Apertura file LME non riuscita: {error}");
+        }
+    }
+
+    private string? ReadDisplayName(Android.Net.Uri uri)
+    {
+        if (uri.Scheme == ContentResolver.SchemeFile) return Path.GetFileName(uri.Path);
+        using ICursor? cursor = ContentResolver?.Query(uri, [IOpenableColumns.DisplayName], null, null, null);
+        if (cursor is null || !cursor.MoveToFirst()) return null;
+        var index = cursor.GetColumnIndex(IOpenableColumns.DisplayName);
+        return index >= 0 ? cursor.GetString(index) : null;
+    }
 }