Fixed a bug where lists would crash if a second page was loaded.

app/src/main/java/com/github/apognu/otter/fragments/AlbumsGridFragment.kt

@@ -13,7 +13,6 @@ import com.github.apognu.otter.adapters.AlbumsGridAdapter
 import com.github.apognu.otter.repositories.AlbumsRepository
 import com.github.apognu.otter.utils.Album
 import com.github.apognu.otter.utils.AppContext
-import com.github.apognu.otter.utils.onViewPager
 import kotlinx.android.synthetic.main.fragment_albums_grid.*
 
 class AlbumsGridFragment : FunkwhaleFragment<Album, AlbumsGridAdapter>() {
@@ -31,14 +30,12 @@ class AlbumsGridFragment : FunkwhaleFragment<Album, AlbumsGridAdapter>() {
   inner class OnAlbumClickListener : AlbumsGridAdapter.OnAlbumClickListener {
     override fun onClick(view: View?, album: Album) {
       (context as? MainActivity)?.let { activity ->
-        onViewPager {
-          exitTransition = Fade().apply {
-            duration = AppContext.TRANSITION_DURATION
-            interpolator = AccelerateDecelerateInterpolator()
+        exitTransition = Fade().apply {
+          duration = AppContext.TRANSITION_DURATION
+          interpolator = AccelerateDecelerateInterpolator()
 
-            view?.let {
-              addTarget(it)
-            }
+          view?.let {
+            addTarget(it)
           }
         }
 

app/src/main/java/com/github/apognu/otter/fragments/FunkwhaleFragment.kt

@@ -10,6 +10,7 @@ import androidx.recyclerview.widget.RecyclerView
 import com.github.apognu.otter.repositories.HttpUpstream
 import com.github.apognu.otter.repositories.Repository
 import com.github.apognu.otter.utils.Cache
+import com.github.apognu.otter.utils.log
 import com.github.apognu.otter.utils.untilNetwork
 import com.google.gson.Gson
 import kotlinx.android.synthetic.main.fragment_artists.*
@@ -52,7 +53,11 @@ abstract class FunkwhaleFragment<D : Any, A : FunkwhaleAdapter<D, *>> : Fragment
       }
     }
 
-    fetch()
+    fetch(Repository.Origin.Cache.origin)
+
+    if (adapter.data.isEmpty()) {
+      fetch(Repository.Origin.Network.origin)
+    }
   }
 
   override fun onResume() {
@@ -65,10 +70,12 @@ abstract class FunkwhaleFragment<D : Any, A : FunkwhaleAdapter<D, *>> : Fragment
 
   open fun onDataFetched(data: List<D>) {}
 
-  private fun fetch(upstreams: Int = (Repository.Origin.Network.origin and Repository.Origin.Cache.origin), size: Int = 0) {
+  private fun fetch(upstreams: Int = Repository.Origin.Network.origin, size: Int = 0) {
     var first = size == 0
 
-    swiper?.isRefreshing = true
+    if (upstreams == Repository.Origin.Network.origin) {
+      swiper?.isRefreshing = true
+    }
 
     repository.fetch(upstreams, size).untilNetwork(IO) { data, isCache, hasMore ->
       GlobalScope.launch(Main) {
@@ -80,8 +87,6 @@ abstract class FunkwhaleFragment<D : Any, A : FunkwhaleAdapter<D, *>> : Fragment
         }
 
         if (first && data.isNotEmpty()) {
-          first = false
-
           adapter.data.clear()
         }