FlowOperators.kt

import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.flow.combine

@Suppress("UNCHECKED_CAST")
public fun <T1, T2, T3, T4, T5, T6, T7, R> combine(
    flow: Flow<T1>,
    flow2: Flow<T2>,
    flow3: Flow<T3>,
    flow4: Flow<T4>,
    flow5: Flow<T5>,
    flow6: Flow<T6>,
    flow7: Flow<T7>,
    transform: suspend (T1, T2, T3, T4, T5, T6, T7) -> R
): Flow<R> =
    combine(flow, flow2, flow3, flow4, flow5, flow6, flow7) { args: Array<*> ->
        transform(
            args[0] as T1,
            args[1] as T2,
            args[2] as T3,
            args[3] as T4,
            args[4] as T5,
            args[5] as T6,
            args[6] as T7,
        )
    }

@Suppress("UNCHECKED_CAST")
public fun <T1, T2, T3, T4, T5, T6, T7, T8, R> combine(
    flow: Flow<T1>,
    flow2: Flow<T2>,
    flow3: Flow<T3>,
    flow4: Flow<T4>,
    flow5: Flow<T5>,
    flow6: Flow<T6>,
    flow7: Flow<T7>,
    flow8: Flow<T8>,
    transform: suspend (T1, T2, T3, T4, T5, T6, T7, T8) -> R
): Flow<R> =
    combine(flow, flow2, flow3, flow4, flow5, flow6, flow7, flow8) { args: Array<*> ->
        transform(
            args[0] as T1,
            args[1] as T2,
            args[2] as T3,
            args[3] as T4,
            args[4] as T5,
            args[5] as T6,
            args[6] as T7,
            args[7] as T8,
        )
    }

FlowsDie.kts

import android.content.Intent
import android.os.Bundle
import androidx.activity.compose.setContent
import androidx.activity.viewModels
import androidx.appcompat.app.AppCompatActivity
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.lifecycle.ViewModel
import androidx.lifecycle.compose.collectAsStateWithLifecycle
import androidx.lifecycle.viewModelScope
import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.flow.MutableStateFlow
import kotlinx.coroutines.flow.SharingStarted
import kotlinx.coroutines.flow.combine
import kotlinx.coroutines.flow.flowOf
import kotlinx.coroutines.flow.stateIn

class MyViewModel : ViewModel() {
    private val flow1: MutableStateFlow<Any> = MutableStateFlow(Any())
    private val flow2: Flow<Any> = flowOf(Any())
    private val flow3: MutableStateFlow<Any> = MutableStateFlow(Any())
    // ... 14 more flows
    private val flow17: MutableStateFlow<Any> = MutableStateFlow(Any())

    val uiState =
        combine(
                flow1,
                flow2,
                flow3,
                // ... 14 more flows
                flow17,
            ) { f1, f2, f3, f17 ->
                UiState(f1, f2, f3, f17)
            }
            .stateIn(viewModelScope, SharingStarted.WhileSubscribed(), UiState())
}

class MyActivity : AppCompatActivity() {
    private val viewModel: MyViewModel by viewModels()

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            val uiState by viewModel.uiState.collectAsStateWithLifecycle()
            MyScreen(uiState)
        }
    }

    fun restartActivity() {
        val intent = Intent(this, MyActivity::class.java)
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK)
        startActivity(intent)
    }
}

data class UiState(
    val f1: Any = Any(),
    val f2: Any = Any(),
    val f3: Any = Any(),
    val f17: Any = Any(),
)

@Composable
fun MyScreen(uiState: UiState) {
    // ...
}