fix shorter-than-expected leave-behind view heights

Make leave-behind heights variable, dependent on the
ConversationItemView that originated it.
Make the background on a SwipeableCIV not a separate view, but a simple
background. Also simplify the conditions under which it occurs-- it just
appears whenever translateX is non-zero. This covers all swiping and
animating cases handily, without the need for extra listeners.

Remove an old workaround that gave ListView on 1-pane an opaque background-

- it was there to mask FolderListFragments that stuck around, but those
are relegated to the drawer now. This reduces list overdraw by one.

Bug: 8570880
Change-Id: I2e2ea875d4ab58b5048d41025b8a2c48a3d63536

1 files changed, 2 insertions, 7 deletions

diff --git a/proguard.flags b/proguard.flags
index 504a319c3..536213f5b 100644
--- a/proguard.flags
+++ b/proguard.flags
@@ -41,10 +41,6 @@
   *** setAnimatedHeight(...);
 }
 
--keepclasseswithmembers class com.android.mail.ui.LeaveBehindItem {
-  *** setAnimatedHeight(...);
-}
-
 -keepclasseswithmembers class com.android.mail.ui.ConversationViewFragment$MailJsBridge {
   public <methods>;
 }
@@ -63,10 +59,9 @@
 }
 
 -keepclasseswithmembers class com.android.mail.browse.ConversationItemView {
-  *** setAnimatedHeight(...);
-  *** setItemAlpha(...);
+  *** setAnimatedHeightFraction(...);
 }
 
 -keepclasseswithmembers class com.android.mail.ui.MailActivity {
   *** doNothingClickHandler(...);
-}
\ No newline at end of file
+}