support for other db folders on android based on Nozbe#933

native/android/src/main/java/com/nozbe/watermelondb/WMDatabase.java

@@ -47,6 +47,21 @@ private static SQLiteDatabase createSQLiteDatabase(String name, Context context,
         if (name.equals(":memory:") || name.contains("mode=memory")) {
             context.getCacheDir().delete();
             path = new File(context.getCacheDir(), name).getPath();
+        }
+        else if (name.startsWith("/") || name.startsWith("file")) {
+                // Extracts the database name from the path
+                val dbName = name.substringAfterLast("/")
+                if(dbName.contains(".db")){
+                    // Extracts the real path where the *.db file will be created
+                    val directory = name.substringAfterLast("file://").substringBeforeLast("/")
+
+                    // Creates the directory
+                    val fileObj = File(directory, "databases")
+                    fileObj.mkdir()
+                    File("${directory}/databases", dbName).path
+                } else {
+                    throw IllegalArgumentException("Database name should contain '.db' as extension")
+                }
         } else {
             // On some systems there is some kind of lock on `/databases` folder ¯\_(ツ)_/¯
             path = context.getDatabasePath("" + name + ".db").getPath().replace("/databases", "");