Overshoot when flinging up from an app

- Use OvershootInterpolator based on velocity (consistent with swiping up
  from home)
- Scale down recents as well, to be consistent with adjacent pages scaling
  up when you launch a task

Bug: 109709720
Change-Id: Ie47309058ccf673a4b86c40c843c415beb2d8dc7

src/com/android/launcher3/Utilities.java

@@ -272,6 +272,24 @@ public final class Utilities {
         return scale;
     }
 
+    /**
+     * Maps t from one range to another range.
+     * @param t The value to map.
+     * @param fromMin The lower bound of the range that t is being mapped from.
+     * @param fromMax The upper bound of the range that t is being mapped from.
+     * @param toMin The lower bound of the range that t is being mapped to.
+     * @param toMax The upper bound of the range that t is being mapped to.
+     * @return The mapped value of t.
+     */
+    public static float mapToRange(float t, float fromMin, float fromMax, float toMin, float toMax) {
+        if (fromMin == fromMax || toMin == toMax) {
+            Log.e(TAG, "mapToRange: range has 0 length");
+            return toMin;
+        }
+        float progress = Math.abs(t - fromMin) / Math.abs(fromMax - fromMin);
+        return mapRange(progress, toMin, toMax);
+    }
+
     public static float mapRange(float value, float min, float max) {
         return min + (value * (max - min));
     }
@@ -462,6 +480,13 @@ public final class Utilities {
         return Math.max(lowerBound, Math.min(value, upperBound));
     }
 
+    /**
+     * @see #boundToRange(int, int, int).
+     */
+    public static long boundToRange(long value, long lowerBound, long upperBound) {
+        return Math.max(lowerBound, Math.min(value, upperBound));
+    }
+
     /**
      * Wraps a message with a TTS span, so that a different message is spoken than
      * what is getting displayed.