Instant Search Feature With Flow Kotlin Android Studio
Instant Search Feature Implementation With Flow and Kotlin Android Studio.
In this video we are going to implement the instant search feature using Kotlin Flow operators in Android applications. We will also learn about all the operators used to implement this feature.
The following are the things of Kotlin Flow that we will be using to implement this search feature:
StateFlow:
Debounce Operator
Filter Operator
DistinctUntilChanged Operator
FlatMapLatest Operator
Flow is an asynchronous data stream(which generally comes from a task) that emits values to the collector and gets completed with or without an exception.
The major components of Flow are as below:
Flow Builder
Operator
Collector
Flow Builder
It is used for performing task and emit result.
Operator
The operator helps in transforming the data from one format to another.
Collector
The collector collects the items emitted using the Flow Builder which are transformed by the operators.
Types of flow builders
There are 4 types of flow builders:
flowOf(): It is used to create flow from a given set of items.
asFlow(): It is an extension function that helps to convert type into flows.
flow{}: This is what we have used in the Hello World example of Flow.
channelFlow{}: This builder creates flow with the elements using send provided by the builder itself.