Observe auth statuses as LiveData, not Flow

app/src/main/java/gq/kirmanak/mealient/MainActivity.kt

@@ -5,11 +5,9 @@ import android.view.Menu
 import android.view.MenuItem
 import androidx.activity.viewModels
 import androidx.appcompat.app.AppCompatActivity
-import androidx.lifecycle.lifecycleScope
 import dagger.hilt.android.AndroidEntryPoint
 import gq.kirmanak.mealient.databinding.MainActivityBinding
 import gq.kirmanak.mealient.ui.auth.AuthenticationViewModel
-import kotlinx.coroutines.flow.collectLatest
 import timber.log.Timber
 
 @AndroidEntryPoint
@@ -29,10 +27,8 @@ class MainActivity : AppCompatActivity() {
 
     private fun listenToAuthStatuses() {
         Timber.v("listenToAuthStatuses() called")
-        lifecycleScope.launchWhenCreated {
+        authViewModel.authenticationStatuses().observe(this) {
-            authViewModel.authenticationStatuses().collectLatest {
+            changeAuthStatus(it)
-                changeAuthStatus(it)
-            }
         }
     }
 

app/src/main/java/gq/kirmanak/mealient/ui/auth/AuthenticationFragment.kt

@@ -12,7 +12,6 @@ import androidx.navigation.fragment.findNavController
 import com.google.android.material.textfield.TextInputLayout
 import dagger.hilt.android.AndroidEntryPoint
 import gq.kirmanak.mealient.databinding.FragmentAuthenticationBinding
-import kotlinx.coroutines.flow.collectLatest
 import timber.log.Timber
 
 @AndroidEntryPoint
@@ -30,11 +29,9 @@ class AuthenticationFragment : Fragment() {
 
     private fun listenToAuthenticationStatuses() {
         Timber.d("listenToAuthenticationStatuses() called")
-        lifecycleScope.launchWhenCreated {
+        viewModel.authenticationStatuses().observe(this) {
-            viewModel.authenticationStatuses().collectLatest {
+            Timber.d("listenToAuthenticationStatuses: new status = $it")
-                Timber.d("listenToAuthenticationStatuses: new status = $it")
+            if (it) navigateToRecipes()
-                if (it) navigateToRecipes()
-            }
         }
     }
 

app/src/main/java/gq/kirmanak/mealient/ui/auth/AuthenticationViewModel.kt

@@ -1,11 +1,12 @@
 package gq.kirmanak.mealient.ui.auth
 
+import androidx.lifecycle.LiveData
 import androidx.lifecycle.ViewModel
+import androidx.lifecycle.asLiveData
 import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
 import gq.kirmanak.mealient.data.auth.AuthRepo
 import gq.kirmanak.mealient.data.recipes.RecipeRepo
-import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.launch
 import timber.log.Timber
 import javax.inject.Inject
@@ -24,9 +25,9 @@ class AuthenticationViewModel @Inject constructor(
         authRepo.authenticate(username, password, baseUrl)
     }
 
-    fun authenticationStatuses(): Flow<Boolean> {
+    fun authenticationStatuses(): LiveData<Boolean> {
         Timber.v("authenticationStatuses() called")
-        return authRepo.authenticationStatuses()
+        return authRepo.authenticationStatuses().asLiveData()
     }
 
     fun logout() {

app/src/main/java/gq/kirmanak/mealient/ui/recipes/RecipesFragment.kt

@@ -16,7 +16,6 @@ import gq.kirmanak.mealient.ui.SwipeRefreshLayoutHelper.listenToRefreshRequests
 import gq.kirmanak.mealient.ui.auth.AuthenticationViewModel
 import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.flow.collect
-import kotlinx.coroutines.flow.collectLatest
 import timber.log.Timber
 
 @ExperimentalCoroutinesApi
@@ -56,11 +55,9 @@ class RecipesFragment : Fragment() {
 
     private fun listenToAuthStatuses() {
         Timber.v("listenToAuthStatuses() called")
-        lifecycleScope.launchWhenCreated {
+        authViewModel.authenticationStatuses().observe(this) {
-            authViewModel.authenticationStatuses().collectLatest {
+            Timber.v("listenToAuthStatuses: new auth status = $it")
-                Timber.v("listenToAuthStatuses: new auth status = $it")
+            if (!it) navigateToAuthFragment()
-                if (!it) navigateToAuthFragment()
-            }
         }
     }
 

app/src/main/java/gq/kirmanak/mealient/ui/recipes/info/RecipeInfoFragment.kt

@@ -6,14 +6,12 @@ import android.view.View
 import android.view.ViewGroup
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.viewModels
-import androidx.lifecycle.lifecycleScope
 import androidx.navigation.fragment.findNavController
 import androidx.navigation.fragment.navArgs
 import androidx.recyclerview.widget.LinearLayoutManager
 import dagger.hilt.android.AndroidEntryPoint
 import gq.kirmanak.mealient.databinding.FragmentRecipeInfoBinding
 import gq.kirmanak.mealient.ui.auth.AuthenticationViewModel
-import kotlinx.coroutines.flow.collectLatest
 import timber.log.Timber
 
 @AndroidEntryPoint
@@ -59,11 +57,9 @@ class RecipeInfoFragment : Fragment() {
 
     private fun listenToAuthStatuses() {
         Timber.v("listenToAuthStatuses() called")
-        lifecycleScope.launchWhenCreated {
+        authViewModel.authenticationStatuses().observe(this) {
-            authViewModel.authenticationStatuses().collectLatest {
+            Timber.v("listenToAuthStatuses: new auth status = $it")
-                Timber.v("listenToAuthStatuses: new auth status = $it")
+            if (!it) navigateToAuthFragment()
-                if (!it) navigateToAuthFragment()
-            }
         }
     }