State flow is a special-purpose, high-performance, and efficient implementation of SharedFlow for the narrow, but widely

Author : bwmdjdml
Publish Date : 2021-01-07 05:21:59


State flow is a special-purpose, high-performance, and efficient implementation of SharedFlow for the narrow, but widely

1. It ignores (conflates) repeated values and this is non-configurable. Sometimes you need to not ignore repeated values, e.g.: a connection attempt that stores the attempt result in a flow, and needs to retry after each failure.

If you have practical need to work with GeoFire, I have developed a library, geofire-ktx, that allows for readily converting a GeoQuery object to a Flow . It also supports fetching DataSnapshot located in other DatabaseReference root with the same child key as the GeoFire root, as this is a common use-case with GeoQuery. It also supports fetching this data as an instance of a class instead of a DataSnapshot . This is done through Flow transformations. The library source code completes the examples given in this article.

2. Also, it requires an initial value. Because SharedFlow does not have .value, it does not need to be instantiated with an initial value — collectors will just suspend until the first value appears, and no one will try to access .value before any value arrives. If you don’t have an initial value for StateFlow you’ll have to make the StateFlow type nullable T? and use null as the initial value (or declare a sealed class for a default no-value value).

Fast forward to 4 years later and here I am, in a 3-year relationship with someone I feel so much love for, who loves every single part of me and who contributes to my personal growth in every possible way. I couldn’t be more grateful for our connection and for having him by my side.

Both support the SharingStarted ( Eagerly, Lazily or WhileSubscribed()) configuration. I commonly use SharingStarted.WhileSubscribed() and destroy/recreate all my collectors on Activity onStart() / onStop(), so data source upstream collection will stop when the user is not actively using the app (this is akin to removing/re-adding listeners on LiveData onActive() / onInactive())

If you have practical need to work with GeoFire, I have developed a library, geofire-ktx, that allows for readily converting a GeoQuery object to a Flow . It also supports fetching DataSnapshot located in other DatabaseReference root with the same child key as the GeoFire root, as this is a common use-case with GeoQuery. It also supports fetching this data as an instance of a class instead of a DataSnapshot . This is done through Flow transformations. The library source code completes the examples given in this article.

// MutableStateFlow(initialValue) is a shared flow with the following parameters: val shared = MutableSharedFlow( replay = 1, onBufferOverflow = BufferOverflow.DROP_OLDEST ) shared.tryEmit(initialValue) // emit the initial value val state = shared.distinctUntilChanged() // get StateFlow-like behavior

I accepted the fact that my negative view of relationships was just the result of my previous relationship experiences, and I realized that love didn’t have to be painful and that it was possible for me to change.

The only reason I was able to find a secure relationship was because I gradually healed (well, I am still healing) my emotional wounds and changed my attachment style to secure.

I was the typical commitment-phobe who viewed relationships as hard work, and who’d disappear whenever things started to get serious. My independence and freedom were above everything else.

3. Also, you might want to tweak the replay value. SharedFlow can replay the last n values for new subscribers. StateFlow has a fixed replay value of 1 — it only shares the current state value.

Although I recognize that the main reason why I viewed relationships the way I did was because I was still in pain from past experiences, I also think our society spreads some very toxic notions regarding intimate relationships.

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t: We create job opportunities for top people, including those from underrepresented backgrounds who don’t have equal access to opportunities, with things like diverse slates (Rooney rule) on senior hires, and casting a wide net to find top talent.

In that example, if billingClientStatus were a MutableStateFlow instead of a MutableSharedFlow, when its value is already SERVICE_DISCONNECTED and we try to set it to the same (connection retry failed), it would ignore the update, and consequently, it would not try to reconnect again.

State flow always has an initial value, replays one most recent value to new subscribers, does not buffer any more values, but keeps the last emitted one, and does not support resetReplayCache. A state flow behaves identically to a shared flow when it is created with the following parameters and the distinctUntilChanged operator is applied to it:



Category : general

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