Anyone here using Jetpack DataStore? When my fragm...

# android

[Florian]

Anyone here using Jetpack DataStore? When my fragment starts I want to load a value once. Right now I'm doing it like this, but it looks a bit awkward. Is this the correct approach? (this is inside onCreateOptionsMenu)

[Manuel Wrage]

You can also use first() instead of take(1)

[Florian]

thank you

[Florian]

However, I don't understand how this method works. Why do I have to return a boolean?

[gildor]

Use overload without lambda
first() is a suspend function which awaits first value from flow and return it

First with lambda is a way to filter values, so first value will be returned when dlpredicate returned true

[gildor]

isChecked = preferencesFlow.first().hideCompleted

[Florian]

thank you very much, that's awesome

[Florian]

works perfectly, thank you

[Florian]

and it looks less ugly

[Florian]

the only downside of this is that this crashes if the Flow is empty

[Florian]

I don't know if my Flow can be empty

[Florian]

it's from the Android Jetpack DataStore

[Florian]

i have to pass a default value when I read from DataStore, so I assume it will always have a value?

[gildor]

But isn't datastire always have value?

[gildor]

Or I may be wrong, you can use operator to return default value

[Florian]

I assume it always has a value

[Florian]

when I uninstall the app it has one on first start