DO NOT MERGE Set the cap at alpha to 80% of the total available.

No matter how much the user drags, the alpha like the height
should not get greater than a max and that max is 80% of what
is available in the image.

Change-Id: I57d181d6ea685461a44ed3ee29f83a675bc07fbc
diff --git a/core/java/android/widget/EdgeGlow.java b/core/java/android/widget/EdgeGlow.java
index 8d14462..c1a389a 100644
--- a/core/java/android/widget/EdgeGlow.java
+++ b/core/java/android/widget/EdgeGlow.java
@@ -38,7 +38,7 @@
     // Time it will take for a pulled glow to decay to partial strength before release
     private static final int PULL_DECAY_TIME = 10000;
 
-    private static final float MAX_ALPHA = 1.f;
+    private static final float MAX_ALPHA = 0.8f;
     private static final float HELD_EDGE_ALPHA = 0.7f;
     private static final float HELD_EDGE_SCALE_Y = 0.5f;
     private static final float HELD_GLOW_ALPHA = 0.5f;