Extract fragmentBase class

app/src/main/java/me/zobrist/tichucounter/fragments/FragmentBase.kt

@@ -0,0 +1,32 @@
+package me.zobrist.tichucounter.fragments
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.viewbinding.ViewBinding
+
+abstract class FragmentBase<VB : ViewBinding> : Fragment() {
+
+    private var _binding: VB? = null
+    abstract val bindingInflater: (LayoutInflater, ViewGroup?, Boolean) -> VB
+
+    // This property is only valid between onCreateView and
+    // onDestroyView.
+    protected val binding get() = _binding!!
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        _binding = bindingInflater.invoke(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+        _binding = null
+    }
+}

app/src/main/java/me/zobrist/tichucounter/fragments/HistoryList.kt

@@ -4,38 +4,16 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import androidx.fragment.app.Fragment
 import androidx.fragment.app.activityViewModels
 import me.zobrist.tichucounter.databinding.FragmentHistoryListBinding
 
-class HistoryList : Fragment() {
+class HistoryList : FragmentBase<FragmentHistoryListBinding>() {
 
-    private var _binding: FragmentHistoryListBinding? = null
+    override val bindingInflater: (LayoutInflater, ViewGroup?, Boolean) -> FragmentHistoryListBinding
-
+        get() = FragmentHistoryListBinding::inflate
-    // This property is only valid between onCreateView and
-    // onDestroyView.
-    private val binding get() = _binding!!
-
-    companion object {
-        fun newInstance() = HistoryList()
-    }
 
     private val viewModel: HistoryListViewModel by activityViewModels()
 
-    override fun onCreateView(
-        inflater: LayoutInflater,
-        container: ViewGroup?,
-        savedInstanceState: Bundle?
-    ): View {
-        _binding = FragmentHistoryListBinding.inflate(inflater, container, false)
-        return binding.root
-    }
-
-    override fun onDestroyView() {
-        super.onDestroyView()
-        _binding = null
-    }
-
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onActivityCreated(savedInstanceState)
 

app/src/main/java/me/zobrist/tichucounter/fragments/Keyboard.kt

@@ -8,39 +8,18 @@ import android.view.View
 import android.view.ViewGroup
 import android.view.inputmethod.InputMethodManager
 import android.widget.EditText
-import androidx.fragment.app.Fragment
 import androidx.fragment.app.activityViewModels
 import me.zobrist.tichucounter.databinding.FragmentKeyboardBinding
 
-class Keyboard : Fragment() {
+class Keyboard : FragmentBase<FragmentKeyboardBinding>() {
 
-    private var _binding: FragmentKeyboardBinding? = null
+    override val bindingInflater: (LayoutInflater, ViewGroup?, Boolean) -> FragmentKeyboardBinding
+        get() = FragmentKeyboardBinding::inflate
 
-    // This property is only valid between onCreateView and
-    // onDestroyView.
-    private val binding get() = _binding!!
     private var unhandledNegation: Boolean = false
 
-    companion object {
-        fun newInstance() = Keyboard()
-    }
-
     private val viewModel: KeyboardViewModel by activityViewModels()
 
-    override fun onCreateView(
-        inflater: LayoutInflater,
-        container: ViewGroup?,
-        savedInstanceState: Bundle?
-    ): View? {
-        _binding = FragmentKeyboardBinding.inflate(inflater, container, false)
-        return binding.root
-    }
-
-    override fun onDestroyView() {
-        super.onDestroyView()
-        _binding = null
-    }
-
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onActivityCreated(savedInstanceState)
 

app/src/main/java/me/zobrist/tichucounter/fragments/TeamNames.kt

@@ -4,38 +4,16 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import androidx.fragment.app.Fragment
 import androidx.fragment.app.activityViewModels
 import me.zobrist.tichucounter.databinding.FragmentTeamNamesBinding
 
-class TeamNames : Fragment() {
+class TeamNames : FragmentBase<FragmentTeamNamesBinding>() {
 
-    private var _binding: FragmentTeamNamesBinding? = null
+    override val bindingInflater: (LayoutInflater, ViewGroup?, Boolean) -> FragmentTeamNamesBinding
-
+        get() = FragmentTeamNamesBinding::inflate
-    // This property is only valid between onCreateView and
-    // onDestroyView.
-    private val binding get() = _binding!!
-
-    companion object {
-        fun newInstance() = TeamNames()
-    }
 
     private val viewModel: TeamNamesViewModel by activityViewModels()
 
-    override fun onCreateView(
-        inflater: LayoutInflater,
-        container: ViewGroup?,
-        savedInstanceState: Bundle?
-    ): View? {
-        _binding = FragmentTeamNamesBinding.inflate(inflater, container, false)
-        return binding.root
-    }
-
-    override fun onDestroyView() {
-        super.onDestroyView()
-        _binding = null
-    }
-
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onActivityCreated(savedInstanceState)
 

app/src/main/java/me/zobrist/tichucounter/fragments/TeamScores.kt

@@ -4,38 +4,16 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import androidx.fragment.app.Fragment
 import androidx.fragment.app.activityViewModels
 import me.zobrist.tichucounter.databinding.FragmentTeamScoresBinding
 
-class TeamScores : Fragment() {
+class TeamScores : FragmentBase<FragmentTeamScoresBinding>() {
 
-    private var _binding: FragmentTeamScoresBinding? = null
+    override val bindingInflater: (LayoutInflater, ViewGroup?, Boolean) -> FragmentTeamScoresBinding
-
+        get() = FragmentTeamScoresBinding::inflate
-    // This property is only valid between onCreateView and
-    // onDestroyView.
-    private val binding get() = _binding!!
-
-    companion object {
-        fun newInstance() = TeamScores()
-    }
 
     private val viewModel: TeamScoresViewModel by activityViewModels()
 
-    override fun onCreateView(
-        inflater: LayoutInflater,
-        container: ViewGroup?,
-        savedInstanceState: Bundle?
-    ): View? {
-        _binding = FragmentTeamScoresBinding.inflate(inflater, container, false)
-        return binding.root
-    }
-
-    override fun onDestroyView() {
-        super.onDestroyView()
-        _binding = null
-    }
-
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onActivityCreated(savedInstanceState)