Flow: Lifecycle operators - devrath/KotlinAlchemy GitHub Wiki

What are lifecycle operators

These are the operators that are triggered only once during the lifecycle of a flow

Some lifecycle operators

• onStart -------> Triggered during the start of the flow
• onCompletion --> Triggered during the completion of flow

Code

        viewModelScope.launch {
            data.getData(context)
                .map { dataList ->
                    
                }.onStart {
                    // We indicate the UI will start loading
                }.catch { error ->
                    // Emit the error if the error is found
                }.onCompletion {
                    // This indicates flow is completed
                }.collect()
        }