Smoother folder animation tweaks.

1. Start preview item animations later opening
2. Finish item animations sooner when closing
3. 1 & 2 allow the preview items to move as part of
   the Folder and allows for a smoother animation
4. Remove setCurrentPlayTime as it is O API.

Bug: 36522198
Bug: 35064148
Change-Id: If63d4d032078ff4e28b72a09e35da3a71f1d0e27
diff --git a/res/interpolator/folder_preview_item_closing_interpolator.xml b/res/interpolator/folder_preview_item_closing_interpolator.xml
index 1d77081..d8ddb0c 100644
--- a/res/interpolator/folder_preview_item_closing_interpolator.xml
+++ b/res/interpolator/folder_preview_item_closing_interpolator.xml
@@ -18,7 +18,7 @@
 -->
 
 <pathInterpolator xmlns:android="http://schemas.android.com/apk/res/android"
-    android:controlX1="1"
+    android:controlX1="0.5"
     android:controlY1="0"
     android:controlX2="1"
     android:controlY2="0"/>
diff --git a/res/values/config.xml b/res/values/config.xml
index 745bce3..4c19dec 100644
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -58,6 +58,7 @@
     <integer name="config_folderExpandDuration">120</integer>
     <integer name="config_materialFolderExpandDuration">200</integer>
     <integer name="config_materialFolderExpandStagger">60</integer>
+    <integer name="config_folderDelay">30</integer>
 
     <!-- The distance at which the animation should take the max duration -->
     <integer name="config_dropAnimMaxDist">800</integer>