Adjust interpolators when swiping from overview to all apps

- All apps content fades in quickly so that icons are opaque by the time
  they are on screen
- Recents fades out late so that we don't see it as translucent while
  the transition is continuing (the translucent icon top of tranclucent
  task view looks bad, for instance)
- Fix colored scrim that appears over recents - was using 0 to 1 instead
  of 255

Bug: 79867407
Change-Id: I4f50423157f7870c8d0708f586a72e3e5a7b6559

src/com/android/launcher3/touch/AbstractStateChangeTouchController.java

@@ -341,7 +341,7 @@ public abstract class AbstractStateChangeTouchController
 
     private AnimatorSet createAtomicAnimForState(LauncherState fromState, LauncherState targetState,
             long duration) {
-        AnimatorSetBuilder builder = new AnimatorSetBuilder();
+        AnimatorSetBuilder builder = getAnimatorSetBuilderForStates(fromState, targetState);
         mLauncher.getStateManager().prepareForAtomicAnimation(fromState, targetState, builder);
         AnimationConfig config = new AnimationConfig();
         config.animComponents = ATOMIC_COMPONENT;
@@ -352,6 +352,11 @@ public abstract class AbstractStateChangeTouchController
         return builder.build();
     }
 
+    protected AnimatorSetBuilder getAnimatorSetBuilderForStates(LauncherState fromState,
+            LauncherState toState) {
+        return new AnimatorSetBuilder();
+    }
+
     @Override
     public void onDragEnd(float velocity, boolean fling) {
         final int logAction = fling ? Touch.FLING : Touch.SWIPE;