Add animation files.

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

+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shareInterpolator="false">
+    <translate
+        android:duration="@android:integer/config_mediumAnimTime"
+        android:fromXDelta="-100%"
+        android:fromYDelta="0%"
+        android:toXDelta="0%"
+        android:toYDelta="0%" />
+</set>
\ No newline at end of file

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

+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shareInterpolator="false">
+    <translate
+        android:duration="@android:integer/config_mediumAnimTime"
+        android:fromXDelta="100%"
+        android:fromYDelta="0%"
+        android:toXDelta="0%"
+        android:toYDelta="0%" />
+</set>
\ No newline at end of file

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

+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shareInterpolator="false">
+    <translate
+        android:duration="@android:integer/config_mediumAnimTime"
+        android:fromXDelta="0%"
+        android:fromYDelta="0%"
+        android:toXDelta="-100%"
+        android:toYDelta="0%" />
+</set>
\ No newline at end of file

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

+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shareInterpolator="false">
+    <translate
+        android:duration="@android:integer/config_mediumAnimTime"
+        android:fromXDelta="0%"
+        android:fromYDelta="0%"
+        android:toXDelta="100%"
+        android:toYDelta="0%" />
+</set>
\ No newline at end of file