get metadata crashes

[LucaCoduriV]

I'm attempting to retrieve metadata for all players. However, I've encountered instances where a player doesn't possess any metadata, rendering the plugin ineffective. Is there a method to verify its existence?

Here is the error message:

[ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: type 'Null' is not a
 subtype of type 'DBusUint32' in type cast
#0      new Metadata.fromMap (package:mpris/mpris.dart:238:41)
#1      MPRISPlayer.getMetadata (package:mpris/mpris.dart:130:16)
<asynchronous suspension>

dart-mpris/lib/mpris.dart

Lines 230 to 253 in 503ac62

	factory Metadata.fromMap(Map<String, DBusValue> map) => Metadata(
	(map['mpris:trackid'] as DBusString).value,
	(map['xesam:title'] as DBusString).value,
	((map['xesam:artist'] as DBusArray).children)
	.map((e) => (e as DBusString).value)
	.toList(),
	map['xesam:trackNumber'] is DBusInt32
	? (map['xesam:trackNumber'] as DBusInt32).value
	: (map['xesam:trackNumber'] as DBusUint32).value,
	(map['xesam:url'] as DBusString).value,
	Duration(
	microseconds: map['mpris:length'] is DBusUint64
	? (map['mpris:length'] as DBusUint64).value
	: (map['mpris:length'] as DBusInt64).value,
	),
	(map['mpris:artUrl'] as DBusString).value,
	(map['xesam:album'] as DBusString).value,
	((map['xesam:albumArtist'] as DBusArray).children)
	.map((e) => (e as DBusString).value)
	.toList(),
	map['xesam:discNumber'] is DBusInt32
	? (map['xesam:discNumber'] as DBusInt32).value
	: (map['xesam:discNumber'] as DBusUint32).value,
	);

I'll try to fix it by myself and will make a pull request.

[LucaCoduriV]

Upon reviewing various forks of your repository, I came across the following one: https://github.com/FlafyDev/dart-mpris. It appears to address the issue I encountered. I recommend incorporating these changes into your main repository by merging them.

[provokateurin]

Can you open a pull request for it? I don't understand why people make the effort to fork a repo and upload a fix but then don't upstream it 🤷‍♀️

[LucaCoduriV]

Yep it's weird..
But here is my pull request #5