Refactoring fast scroller.

- Fixing issue with fast scroller not fitting name width.
- Refactoring fast scrolling/scroll bar code out of base recycler view
- Adding animations to fast scroller to match design
- Smooth scrolling when jumping between app rows
- Fixing issue with fast scroller jumping when you first pick it up
- Fixing issue with wrong background paddings being used

Bug: 21874346
Bug: 22031923
Change-Id: I9f011b1f375751f437604b900e95a2942d3f4601

1 files changed, 19 insertions, 0 deletions

diff --git a/src/com/android/launcher3/Utilities.java b/src/com/android/launcher3/Utilities.java
index 3b06c2093..af118d7f6 100644
--- a/src/com/android/launcher3/Utilities.java
+++ b/src/com/android/launcher3/Utilities.java
@@ -637,6 +637,25 @@ public final class Utilities {
         return -fm.top + fm.bottom;
     }
 
+    /**
+     * Convenience println with multiple args.
+     */
+    public static void println(String key, Object... args) {
+        StringBuilder b = new StringBuilder();
+        b.append(key);
+        b.append(": ");
+        boolean isFirstArgument = true;
+        for (Object arg : args) {
+            if (isFirstArgument) {
+                isFirstArgument = false;
+            } else {
+                b.append(", ");
+            }
+            b.append(arg);
+        }
+        System.out.println(b.toString());
+    }
+
     @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
     public static boolean isRtl(Resources res) {
         return (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) &&