Completely replaced progress bar inclusion with fragment

.idea/misc.xml

@@ -25,7 +25,7 @@
       </value>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

app/src/main/java/com/paktalin/vocabularynotebook/ui/LogInActivity.kt

@@ -5,14 +5,10 @@ import android.content.Intent
 import android.support.v7.app.AppCompatActivity
 import android.os.Bundle
 import android.util.Log
-import android.view.View
 
 import com.google.firebase.auth.FirebaseAuth
+import com.paktalin.vocabularynotebook.*
 import kotlinx.android.synthetic.main.activity_log_in.*
-import com.paktalin.vocabularynotebook.R
-import com.paktalin.vocabularynotebook.UserManager
-import com.paktalin.vocabularynotebook.fieldsNotEmpty
-import com.paktalin.vocabularynotebook.shortToast
 
 class LogInActivity : AppCompatActivity() {
     private var mAuth: FirebaseAuth? = null
@@ -78,9 +74,9 @@ class LogInActivity : AppCompatActivity() {
         startActivity(userActivityIntent)
     }
 
-    private fun showProgressBar() { progress.visibility = View.VISIBLE }
+    private fun showProgressBar() { addProgressBar(supportFragmentManager, R.id.container_login) }
 
-    private fun hideProgressBar() { progress.visibility = View.GONE }
+    private fun hideProgressBar() { removeProgressBar(supportFragmentManager) }
 
     @SuppressLint("SetTextI18n")
     private fun createRandomUser() {

app/src/main/java/com/paktalin/vocabularynotebook/ui/MainActivity.kt

@@ -104,7 +104,7 @@ class MainActivity : AppCompatActivity() {
     }
 
     fun addProgressBar() {
-        addProgressBar(supportFragmentManager, R.id.frameLayout)
+        addProgressBar(supportFragmentManager, R.id.container_main)
     }
 
     fun removeProgressBar() {

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

 <?xml version="1.0" encoding="utf-8"?>
 <android.support.constraint.ConstraintLayout
+    android:id="@+id/container_login"
     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"
@@ -7,11 +8,6 @@
     android:layout_height="match_parent"
     tools:context=".ui.LogInActivity">
 
-    <include
-        android:id="@+id/progress"
-        layout="@layout/progress"
-        android:visibility="gone"/>
-
     <EditText
         android:id="@+id/etEmail"
         android:layout_width="wrap_content"

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

@@ -9,17 +9,11 @@
     android:background="#66330E">
 
     <FrameLayout
-        android:id="@+id/frameLayout"
+        android:id="@+id/container_main"
         android:layout_width="match_parent"
         android:layout_height="match_parent">
 
         <include layout="@layout/notebook_sheet" />
-
-        <include
-            android:id="@+id/progress"
-            layout="@layout/progress"
-            android:visibility="gone" />
-
     </FrameLayout>
 
     <android.support.design.widget.NavigationView

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

@@ -6,7 +6,7 @@
     android:layout_height="match_parent">
 
     <FrameLayout
-        android:id="@+id/frameLayout"
+        android:id="@+id/container_main"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_marginEnd="@dimen/small_margin"
@@ -42,7 +42,7 @@
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/frameLayout"
+        app:layout_constraintTop_toBottomOf="@+id/container_main"
         app:layout_constraintVertical_bias="0.0">
 
         <LinearLayout

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

-<?xml version="1.0" encoding="utf-8"?>
-<FrameLayout
-    xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
-    android:layout_height="match_parent">
-
-    <ProgressBar
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="center"/>
-
-</FrameLayout>
\ No newline at end of file