change runnable to coroutine job, and fix fragment compose memory leak (#152)

app/src/main/kotlin/com/hippo/ehviewer/ui/scene/FavoritesScene.kt

@@ -33,7 +33,6 @@ import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.currentRecomposeScope
 import androidx.compose.runtime.getValue
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.platform.ComposeView
 import androidx.compose.ui.res.stringResource
 import androidx.core.content.ContextCompat
 import androidx.core.os.bundleOf
@@ -94,6 +93,7 @@ import java.time.ZoneOffset
 import java.time.format.DateTimeFormatter
 import java.util.Locale
 import kotlinx.coroutines.Job
+import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.collectLatest
 import kotlinx.coroutines.launch
 import moe.tarsin.coroutines.runSuspendCatching
@@ -153,15 +153,7 @@ class FavoritesScene : SearchBarScene() {
     private val binding get() = _binding!!
     private var mAdapter: GalleryAdapter? = null
     private val tracker get() = mAdapter!!.tracker!!
-    private val showNormalFabsRunnable = Runnable {
-        updateJumpFab() // index: 0, 2
-        binding.fabLayout.run {
-            setSecondaryFabVisibilityAt(1, true)
-            for (i in 3..6) {
-                setSecondaryFabVisibilityAt(i, false)
-            }
-        }
-    }
+    private var showNormalFabsJob: Job? = null
 
     private val dialogState = DialogState()
 
@@ -233,7 +225,7 @@ class FavoritesScene : SearchBarScene() {
         savedInstanceState: Bundle?,
     ): View {
         _binding = SceneFavoritesBinding.inflate(inflater, container!!)
-        container.addView(ComposeView(inflater.context).apply { setMD3Content { dialogState.Intercept() } })
+        container.addView(ComposeWithViewLifecycle().apply { setMD3Content { dialogState.Intercept() } })
         setOnApplySearch {
             if (!tracker.isInCustomChoice) {
                 switchFav(urlBuilder.favCat, it)
@@ -444,9 +436,10 @@ class FavoritesScene : SearchBarScene() {
         binding.recyclerView.stopScroll()
         mAdapter = null
         _binding = null
+        showNormalFabsJob = null
     }
 
-    override fun onCreateDrawerView(inflater: LayoutInflater) = ComposeView(inflater.context).apply {
+    override fun onCreateDrawerView(inflater: LayoutInflater) = ComposeWithViewLifecycle().apply {
         setMD3Content {
             val localFavCount by vm.localFavCount.collectAsState(0)
             ElevatedCard {
@@ -522,12 +515,20 @@ class FavoritesScene : SearchBarScene() {
 
     private fun showNormalFab() {
         // Delay showing normal fab to avoid mutation
-        SimpleHandler.removeCallbacks(showNormalFabsRunnable)
-        SimpleHandler.postDelayed(showNormalFabsRunnable, 300)
+        showNormalFabsJob = viewLifecycleOwner.lifecycleScope.launch {
+            delay(300)
+            updateJumpFab() // index: 0, 2
+            binding.fabLayout.run {
+                setSecondaryFabVisibilityAt(1, true)
+                for (i in 3..6) {
+                    setSecondaryFabVisibilityAt(i, false)
+                }
+            }
+        }
     }
 
     private fun showSelectionFab() {
-        SimpleHandler.removeCallbacks(showNormalFabsRunnable)
+        showNormalFabsJob?.cancel()
         binding.fabLayout.run {
             for (i in 0..2) {
                 setSecondaryFabVisibilityAt(i, false)