Fix: Memory Leak by ViewBinding

src/main/kotlin/com/looker/droidify/screen/EditRepositoryFragment.kt

@@ -43,7 +43,8 @@ import kotlin.math.min
 
 class EditRepositoryFragment() : ScreenFragment() {
 
-    private lateinit var editRepositoryBinding: EditRepositoryBinding
+    private var _editRepositoryBinding: EditRepositoryBinding? = null
+    private val editRepositoryBinding get() = _editRepositoryBinding!!
 
     companion object {
         private const val EXTRA_REPOSITORY_ID = "repositoryId"
@@ -86,7 +87,7 @@ class EditRepositoryFragment() : ScreenFragment() {
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
 
-        editRepositoryBinding = EditRepositoryBinding.inflate(layoutInflater)
+        _editRepositoryBinding = EditRepositoryBinding.inflate(layoutInflater)
 
         syncConnection.bind(requireContext())
 
@@ -259,6 +260,7 @@ class EditRepositoryFragment() : ScreenFragment() {
         syncConnection.unbind(requireContext())
         checkDisposable?.dispose()
         checkDisposable = null
+        _editRepositoryBinding = null
     }
 
     private var addressError = false

src/main/kotlin/com/looker/droidify/screen/RepositoryFragment.kt

@@ -11,7 +11,6 @@ import android.view.ViewGroup
 import androidx.appcompat.widget.LinearLayoutCompat
 import androidx.core.widget.NestedScrollView
 import androidx.lifecycle.lifecycleScope
-import com.google.android.material.textview.MaterialTextView
 import com.looker.droidify.R
 import com.looker.droidify.database.Database
 import com.looker.droidify.databinding.TitleTextItemBinding
@@ -19,7 +18,6 @@ import com.looker.droidify.service.Connection
 import com.looker.droidify.service.SyncService
 import com.looker.droidify.utility.Utils
 import com.looker.droidify.utility.extension.resources.getColorFromAttr
-import com.looker.droidify.utility.extension.resources.inflate
 import com.looker.droidify.utility.extension.resources.sizeScaled
 import io.reactivex.rxjava3.disposables.Disposable
 import kotlinx.coroutines.Dispatchers
@@ -28,7 +26,7 @@ import java.util.*
 
 class RepositoryFragment() : ScreenFragment() {
 
-    private lateinit var titleBinding: TitleTextItemBinding
+    private var titleBinding: TitleTextItemBinding? = null
 
     companion object {
         private const val EXTRA_REPOSITORY_ID = "repositoryId"
@@ -98,6 +96,7 @@ class RepositoryFragment() : ScreenFragment() {
         super.onDestroyView()
 
         layout = null
+        titleBinding = null
         syncConnection.unbind(requireContext())
         repositoryDisposable?.dispose()
         repositoryDisposable = null
@@ -164,10 +163,11 @@ class RepositoryFragment() : ScreenFragment() {
 
     private fun LinearLayoutCompat.addTitleText(titleResId: Int, text: CharSequence) {
         if (text.isNotEmpty()) {
-            val layout = inflate(R.layout.title_text_item)
-            val titleView = layout.findViewById<MaterialTextView>(R.id.title)!!
+            val binding = TitleTextItemBinding.inflate(layoutInflater)
+            val layout = binding.root
+            val titleView = binding.title
+            val textView = binding.text
             titleView.setText(titleResId)
-            val textView = layout.findViewById<MaterialTextView>(R.id.text)!!
             textView.text = text
             addView(layout)
         }

src/main/kotlin/com/looker/droidify/screen/ScreenFragment.kt

@@ -10,7 +10,8 @@ import com.google.android.material.appbar.CollapsingToolbarLayout
 import com.looker.droidify.databinding.FragmentBinding
 
 open class ScreenFragment : BaseFragment() {
-    lateinit var fragmentBinding: FragmentBinding
+    private var _fragmentBinding: FragmentBinding? = null
+    val fragmentBinding get() = _fragmentBinding!!
 
     lateinit var toolbar: Toolbar
     lateinit var collapsingToolbar: CollapsingToolbarLayout
@@ -18,17 +19,22 @@ open class ScreenFragment : BaseFragment() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        fragmentBinding = FragmentBinding.inflate(layoutInflater)
+        _fragmentBinding = FragmentBinding.inflate(layoutInflater)
     }
 
     override fun onCreateView(
         inflater: LayoutInflater,
         container: ViewGroup?,
-        savedInstanceState: Bundle?
+        savedInstanceState: Bundle?,
     ): View? {
         this.toolbar = fragmentBinding.toolbar
         this.collapsingToolbar = fragmentBinding.collapsingToolbar
         this.appBar = fragmentBinding.appbarLayout
         return fragmentBinding.root
     }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+        _fragmentBinding = null
+    }
 }

src/main/kotlin/com/looker/droidify/screen/SettingsFragment.kt

@@ -32,7 +32,7 @@ import kotlinx.coroutines.flow.collect
 
 class SettingsFragment : ScreenFragment() {
 
-    private lateinit var preferenceBinding: PreferenceItemBinding
+    private var preferenceBinding: PreferenceItemBinding? = null
     private val preferences = mutableMapOf<Preferences.Key<*>, Preference<*>>()
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
@@ -173,6 +173,7 @@ class SettingsFragment : ScreenFragment() {
     override fun onDestroyView() {
         super.onDestroyView()
         preferences.clear()
+        preferenceBinding = null
     }
 
     private fun updatePreference(key: Preferences.Key<*>?) {

src/main/kotlin/com/looker/droidify/screen/TabsFragment.kt

@@ -39,7 +39,8 @@ import kotlin.math.*
 
 class TabsFragment : ScreenFragment() {
 
-    private lateinit var tabsBinding: TabsToolbarBinding
+    private var _tabsBinding: TabsToolbarBinding? = null
+    private val tabsBinding get() = _tabsBinding!!
 
     companion object {
         private const val STATE_SEARCH_FOCUSED = "searchFocused"
@@ -103,7 +104,7 @@ class TabsFragment : ScreenFragment() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        tabsBinding = TabsToolbarBinding.inflate(layoutInflater)
+        _tabsBinding = TabsToolbarBinding.inflate(layoutInflater)
     }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
@@ -312,6 +313,8 @@ class TabsFragment : ScreenFragment() {
         repositoriesDisposable = null
         sectionsAnimator?.cancel()
         sectionsAnimator = null
+
+        _tabsBinding = null
     }
 
     override fun onSaveInstanceState(outState: Bundle) {