feat:ActivityにFragmentをAttach

app/src/main/kotlin/com/syousa1982/todo4android/presentation/MainActivity.kt

@@ -2,12 +2,22 @@ package com.syousa1982.todo4android.presentation
 
 import android.os.Bundle
 import androidx.appcompat.app.AppCompatActivity
+import androidx.databinding.DataBindingUtil
 import com.syousa1982.todo4android.R
+import com.syousa1982.todo4android.databinding.ActivityMainBinding
+import com.syousa1982.todo4android.presentation.top.TopFragment
 
 class MainActivity : AppCompatActivity() {
 
+    private val binding by lazy {
+        DataBindingUtil.setContentView<ActivityMainBinding>(this, R.layout.activity_main)
+    }
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_main)
+        val fragmentManager = supportFragmentManager
+        val frammentTransaction = fragmentManager.beginTransaction()
+        frammentTransaction.replace(binding.container.id, TopFragment.newInstance())
+        frammentTransaction.commit()
     }
 }

app/src/main/kotlin/com/syousa1982/todo4android/presentation/top/TopFragment.kt

@@ -0,0 +1,27 @@
+package com.syousa1982.todo4android.presentation.top
+
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import com.syousa1982.todo4android.R
+
+/**
+ * A simple [Fragment] subclass.
+ *
+ */
+class TopFragment : Fragment() {
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        // Inflate the layout for this fragment
+        return inflater.inflate(R.layout.fragment_top, container, false)
+    }
+
+
+    companion object {
+
+        fun newInstance() = TopFragment()
+    }
+}

app/src/main/res/layout/activity_main.xml

@@ -1,10 +1,28 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout
-        xmlns:android="http://schemas.android.com/apk/res/android"
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
         xmlns:tools="http://schemas.android.com/tools"
         xmlns:app="http://schemas.android.com/apk/res-auto"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
         tools:context="com.syousa1982.todo4android.presentation.MainActivity">
+    <androidx.coordinatorlayout.widget.CoordinatorLayout
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
 
-</androidx.constraintlayout.widget.ConstraintLayout>
+        <com.google.android.material.appbar.AppBarLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content">
+
+            <androidx.appcompat.widget.Toolbar
+                    android:id="@+id/toolbar"
+                    style="@style/AppToolbar"/>
+
+        </com.google.android.material.appbar.AppBarLayout>
+
+        <FrameLayout
+                android:id="@+id/container"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:orientation="vertical"
+                app:layout_behavior="@string/appbar_scrolling_view_behavior"/>
+    </androidx.coordinatorlayout.widget.CoordinatorLayout>
+
+</layout>

app/src/main/res/layout/fragment_top.xml

@@ -0,0 +1,15 @@
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    tools:context="com.syousa1982.todo4android.presentation.top.TopFragment">
+
+    <FrameLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+        <!-- TODO: Update blank fragment layout -->
+        <TextView
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:text="@string/hello_blank_fragment" />
+    </FrameLayout>
+
+</layout>