Fixes to all apps pull up work

b/28917826

- 2+ workspace page also slides up
- pull up touch interaction doesn't trigger only when yslop > xslop
- animation duration should be set independently when all apps button is used.
- workspace state is correctly set (drag and drop from the trays work)
- after lock screen, hotseat is positioned correctly
- Remove initial jump when sliding up
- Improved tuning on sliding
- Alpha value set differently on backbround and content of all apps

Still not fixed:
- Landscape
- Search edit text box styling
- All apps scroll bar

Change-Id: I817094b0f1ada5052ee604539459f556a99cadf1

src/com/android/launcher3/allapps/AllAppsContainerView.java

@@ -18,6 +18,7 @@ package com.android.launcher3.allapps;
 import android.annotation.SuppressLint;
 import android.content.Context;
 import android.content.res.Resources;
+import android.graphics.Color;
 import android.graphics.Point;
 import android.graphics.Rect;
 import android.support.v7.widget.LinearLayoutManager;
@@ -450,6 +451,7 @@ public class AllAppsContainerView extends BaseContainerView implements DragSourc
             mSearchInput.setLayoutParams(llp);
 
             lp.height = height;
+            mSearchContainer.setBackground(null);
         }
         mSearchContainer.setLayoutParams(lp);
     }