Fix the import order that should've been addressed in the previous PR

demo-playground/src/main/java/com/google/android/flexbox/FlexItemAdapter.kt

@@ -16,10 +16,10 @@
 
 package com.google.android.flexbox
 
-import androidx.appcompat.app.AppCompatActivity
-import androidx.recyclerview.widget.RecyclerView
 import android.view.LayoutInflater
 import android.view.ViewGroup
+import androidx.appcompat.app.AppCompatActivity
+import androidx.recyclerview.widget.RecyclerView
 import com.google.android.apps.flexbox.R
 
 /**

demo-playground/src/main/java/com/google/android/flexbox/FlexItemChangedListenerImplRecyclerView.kt

@@ -16,8 +16,8 @@
 
 package com.google.android.flexbox
 
-import androidx.recyclerview.widget.RecyclerView
 import android.view.ViewGroup
+import androidx.recyclerview.widget.RecyclerView
 
 /**
  * Implementation for the [FlexItemChangedListener].

demo-playground/src/main/java/com/google/android/flexbox/FlexItemClickListener.kt

@@ -16,8 +16,8 @@
 
 package com.google.android.flexbox
 
-import androidx.appcompat.app.AppCompatActivity
 import android.view.View
+import androidx.appcompat.app.AppCompatActivity
 
 /**
  * Implementation of the [android.view.View.OnClickListener] when a flex item is clicked in

demo-playground/src/main/java/com/google/android/flexbox/FlexItemEditFragment.kt

@@ -19,8 +19,6 @@ package com.google.android.flexbox
 import android.content.Context
 import android.os.Build
 import android.os.Bundle
-import com.google.android.material.textfield.TextInputLayout
-import androidx.fragment.app.DialogFragment
 import android.text.Editable
 import android.text.TextWatcher
 import android.view.KeyEvent
@@ -30,8 +28,10 @@ import android.view.ViewGroup
 import android.view.inputmethod.EditorInfo
 import android.view.inputmethod.InputMethodManager
 import android.widget.*
+import androidx.fragment.app.DialogFragment
 import com.google.android.apps.flexbox.R
 import com.google.android.flexbox.validators.*
+import com.google.android.material.textfield.TextInputLayout
 
 /**
  * DialogFragment that changes the properties for a flex item.

demo-playground/src/main/java/com/google/android/flexbox/FlexItemViewHolder.kt

@@ -16,10 +16,10 @@
 
 package com.google.android.flexbox
 
-import androidx.recyclerview.widget.RecyclerView
 import android.view.Gravity
 import android.view.View
 import android.widget.TextView
+import androidx.recyclerview.widget.RecyclerView
 import com.google.android.apps.flexbox.R
 
 /**

demo-playground/src/main/java/com/google/android/flexbox/FlexboxLayoutFragment.kt

@@ -18,14 +18,14 @@ package com.google.android.flexbox
 
 import android.content.Context
 import android.os.Bundle
-import com.google.android.material.floatingactionbutton.FloatingActionButton
-import androidx.fragment.app.Fragment
 import android.view.Gravity
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.TextView
+import androidx.fragment.app.Fragment
 import com.google.android.apps.flexbox.R
+import com.google.android.material.floatingactionbutton.FloatingActionButton
 import java.util.*
 
 /**

demo-playground/src/main/java/com/google/android/flexbox/FragmentHelper.kt

@@ -17,15 +17,15 @@
 package com.google.android.flexbox
 
 import android.content.SharedPreferences
-import com.google.android.material.navigation.NavigationView
-import androidx.preference.PreferenceManager
 import android.view.Menu
 import android.view.View
 import android.widget.AdapterView
 import android.widget.ArrayAdapter
 import android.widget.Spinner
 import android.widget.Toast
+import androidx.preference.PreferenceManager
 import com.google.android.apps.flexbox.R
+import com.google.android.material.navigation.NavigationView
 
 /**
  * Helper class that has the common logic for initializing the Fragment for the play ground demo

demo-playground/src/main/java/com/google/android/flexbox/MainActivity.kt

@@ -18,16 +18,16 @@ package com.google.android.flexbox
 
 import android.content.Intent
 import android.os.Bundle
-import com.google.android.material.navigation.NavigationView
-import androidx.fragment.app.FragmentManager
-import androidx.drawerlayout.widget.DrawerLayout
-import androidx.appcompat.app.ActionBarDrawerToggle
-import androidx.appcompat.app.AppCompatActivity
-import androidx.appcompat.widget.Toolbar
 import android.view.Menu
 import android.view.MenuItem
 import android.widget.RadioGroup
+import androidx.appcompat.app.ActionBarDrawerToggle
+import androidx.appcompat.app.AppCompatActivity
+import androidx.appcompat.widget.Toolbar
+import androidx.drawerlayout.widget.DrawerLayout
+import androidx.fragment.app.FragmentManager
 import com.google.android.apps.flexbox.R
+import com.google.android.material.navigation.NavigationView
 
 class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelectedListener {
 

demo-playground/src/main/java/com/google/android/flexbox/RecyclerViewFragment.kt

@@ -17,13 +17,13 @@
 package com.google.android.flexbox
 
 import android.os.Bundle
-import com.google.android.material.floatingactionbutton.FloatingActionButton
-import androidx.fragment.app.Fragment
-import androidx.recyclerview.widget.RecyclerView
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.recyclerview.widget.RecyclerView
 import com.google.android.apps.flexbox.R
+import com.google.android.material.floatingactionbutton.FloatingActionButton
 
 /**
  * Fragment that contains the [RecyclerView] and the [FlexboxLayoutManager] as its

demo-playground/src/main/java/com/google/android/flexbox/SettingsActivity.kt

@@ -17,11 +17,11 @@
 package com.google.android.flexbox
 
 import android.os.Bundle
+import android.widget.Toast
 import androidx.fragment.app.FragmentActivity
 import androidx.preference.EditTextPreference
 import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
-import android.widget.Toast
 import com.google.android.apps.flexbox.R
 import com.google.android.flexbox.validators.DimensionInputValidator
 import com.google.android.flexbox.validators.FlexBasisPercentInputValidator