Support to Automatic load posts on connectivity.

nhubbard · Mar 21, 2020 · 4d4cf88 · 4d4cf88
1 parent 540fd67
commit 4d4cf88
Show file tree

Hide file tree

Showing 4 changed files with 11 additions and 2 deletions.
diff --git a/apk/Foodium.apk b/apk/Foodium.apk
diff --git a/app/src/main/java/dev/shreyaspatil/foodium/database/PostsRepository.kt b/app/src/main/java/dev/shreyaspatil/foodium/database/PostsRepository.kt
@@ -56,8 +56,13 @@ class PostsRepository @Inject constructor(
 
         // Retrieve posts from persistence storage and emit
         emitAll(fetchFromDatabase().map {
+            if (!it.isNullOrEmpty()) {
                 // Posts retrieved. Emit Success state
-            State.success<List<Post>>(it)
+                State.success<List<Post>>(it)
+            } else {
+                // No posts found in persistence storage.
+                State.error<List<Post>>("Can't get latest posts!")
+            }
         })
     }.flowOn(Dispatchers.IO)
 

diff --git a/app/src/main/java/dev/shreyaspatil/foodium/ui/activity/MainActivity.kt b/app/src/main/java/dev/shreyaspatil/foodium/ui/activity/MainActivity.kt
@@ -55,6 +55,7 @@ class MainActivity : BaseActivity<MainViewModel, ActivityMainBinding>() {
                     showLoading(false)
                 }
             }
+            println("STATE CHANGED = $state")
         })
 
         mViewBinding.swipeRefreshLayout.setOnRefreshListener {
@@ -93,8 +94,10 @@ class MainActivity : BaseActivity<MainViewModel, ActivityMainBinding>() {
                         .setListener(null)
                 }
             } else {
-                if (mViewModel.postsLiveData.value is Error) {
+                println("CURRENT STATE = ${mViewModel.postsLiveData.value}")
+                if (mViewModel.postsLiveData.value is State.Error) {
                     getPosts()
+                    println("CURRENT STATE: GETTING POSTS CALLED")
                 }
                 mViewBinding.textViewNetworkStatus.text = getString(R.string.text_connectivity)
                 mViewBinding.networkStatusLayout.apply {

diff --git a/app/src/main/java/dev/shreyaspatil/foodium/ui/viewmodel/MainViewModel.kt b/app/src/main/java/dev/shreyaspatil/foodium/ui/viewmodel/MainViewModel.kt
@@ -24,6 +24,7 @@ class MainViewModel @Inject constructor(private val postsRepository: PostsReposi
         get() = _postsLiveData
 
     fun getPosts() {
+        println("CURRENT STATE: IN VM")
         viewModelScope.launch {
             postsRepository.getAllPosts().collect {
                 _postsLiveData.value = it