Hive: Weird bug with TypeAdapter

[bernaferrari]

I don't know what is going on. I made a minimal reproducible sample modifying the counter sample: counter.zip

I/flutter (24325): HiveError: There is already a TypeAdapter for typeId 35.

It loads fine, then refreshes (probably because put has occurred) and things get weird. Why is that happening?

[leisim]

Your sample works fine for me. What device are you testing on? Maybe try to execute flutter clean.

[bernaferrari]

Well, that's certainly weird. I tried flutter clean without success.
Currently Android Emulator API 29. Just make sure to wait a few seconds (like 3~5 seconds) after opening it.

[bernaferrari]

Hey, could you reproduce it? I'm locked because of it.

[leisim]

I think I know the problem. When you do a hot reload, your _openBox() is called a second time and fails because the TypeAdapter has already been registered.

This should work:
```dart
var initialized = false;
Future _openBox() async {
if (!initialized) {
initialized = true;
if (!isBrowser) {
var dir = await getApplicationDocumentsDirectory();
Hive.init(dir.path);
}
Hive.registerAdapter(ColorAdapter(), 35);
}

return await Hive.openBox('myBox');
}

[bernaferrari]

Nope. When I press run it gives this.

When I hot-restart it works. Really weird.

[leisim]

counter.zip

This works fine for me...

[bernaferrari]

I think I know the issue!

I think the Hive database got somehow corrupted. I needed to reinstall my app, now it is working fine. Thanks!