Improve transition back to creation fragment.

app/src/main/java/org/thoughtcrime/securesms/mediasend/v2/text/TextStoryPostCreationFragment.kt

@@ -5,6 +5,7 @@ import android.view.View
 import androidx.appcompat.widget.AppCompatImageView
 import androidx.constraintlayout.widget.ConstraintLayout
 import androidx.core.view.drawToBitmap
+import androidx.core.view.postDelayed
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.viewModels
 import androidx.navigation.fragment.findNavController
@@ -120,6 +121,8 @@ class TextStoryPostCreationFragment : Fragment(R.layout.stories_text_post_creati
   }
 
   override fun onTextStoryPostTextEntryDismissed() {
-    storyTextPostView.showPostContent()
+    storyTextPostView.postDelayed(resources.getInteger(R.integer.text_entry_exit_duration).toLong()) {
+      storyTextPostView.showPostContent()
+    }
   }
 }

app/src/main/java/org/thoughtcrime/securesms/mediasend/v2/text/TextStoryPostTextEntryFragment.kt

@@ -66,6 +66,8 @@ class TextStoryPostTextEntryFragment : KeyboardEntryDialogFragment(
   private var allCapsFilter = InputFilter.AllCaps()
 
   override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+    requireDialog().window?.attributes?.windowAnimations = R.style.TextSecure_Animation_TextStoryPostEntryDialog
+
     initializeViews(view)
     initializeInput()
     initializeAlignmentButton()

app/src/main/res/anim/text_entry_enter.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android"
+    android:duration="200"
+    android:interpolator="@android:anim/accelerate_decelerate_interpolator">
+
+    <translate
+        android:fromYDelta="9%p"
+        android:toYDelta="0"/>
+
+    <alpha
+        android:fromAlpha="0.0"
+        android:toAlpha="1.0"/>
+
+</set>

app/src/main/res/anim/text_entry_exit.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:duration="@integer/text_entry_exit_duration"
+    android:interpolator="@android:anim/accelerate_interpolator">
+
+    <translate
+        android:fromYDelta="0"
+        android:toYDelta="9%p"/>
+
+</set>

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

@@ -17,6 +17,8 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_gravity="start|center_vertical"
+        android:layout_marginStart="20dp"
+        android:layout_marginEnd="20dp"
         android:focusable="false"
         android:gravity="center"
         android:paddingHorizontal="12dp"

app/src/main/res/values/integers.xml

@@ -7,4 +7,6 @@
 
     <integer name="segmentedprogressbar_default_segments_count">4</integer>
     <integer name="segmentedprogressbar_default_time_per_segment_ms">5000</integer>
+
+    <integer name="text_entry_exit_duration">150</integer>
 </resources>

app/src/main/res/values/styles.xml

@@ -50,6 +50,10 @@
         <item name="android:windowExitAnimation">@anim/slide_to_bottom</item>
     </style>
 
+    <style name="TextSecure.Animation.TextStoryPostEntryDialog" parent="Animation.AppCompat.Dialog">
+        <item name="android:windowEnterAnimation">@anim/text_entry_enter</item>
+        <item name="android:windowExitAnimation">@anim/text_entry_exit</item>
+    </style>
 
     <!-- ActionBar styles -->
     <style name="TextSecure.DarkActionBar"