Hide FAB if fully scrolled to bottom

Author: bubelov

app/src/androidTest/kotlin/entry/EntryFragmentTest.kt

@@ -0,0 +1,23 @@
+package entry
+
+import androidx.fragment.app.testing.launchFragmentInContainer
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import co.appreactor.news.R
+import entries.EntriesFragmentDirections
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(AndroidJUnit4::class)
+class EntryFragmentTest {
+
+    @Test
+    fun resumesWithoutCrashes() {
+        val directions =
+            EntriesFragmentDirections.actionEntriesFragmentToEntryFragment("")
+
+        launchFragmentInContainer<EntryFragment>(
+            themeResId = R.style.Theme_Material3_DynamicColors_DayNight,
+            fragmentArgs = directions.arguments,
+        )
+    }
+}

app/src/main/kotlin/entry/EntryFragment.kt

@@ -66,6 +66,14 @@ class EntryFragment : AppFragment() {
 
                 model.state.collectLatest { setState(it ?: return@collectLatest) }
             }
+
+            scrollView.setOnScrollChangeListener { _, _, _, _, _ ->
+                if (scrollView.canScrollVertically(1)) {
+                    fab.show()
+                } else {
+                    fab.hide()
+                }
+            }
         }
     }