When overview appears from motion pause, come up from bottom

- Add vertical offset calculations to RecentsView (in addition to
  the existing horizontal offset which has been renamed accordingly).
- LauncherState#getOverviewScaleAndOffset() now supports both
  horizontal and vertical offsets and is specified such that overview
  appears and disappears from the bottom of the screen rather than the
  side.
- Quick switch still uses horizontal offset to come from the side.
- No longer need to scroll to page 0 when translating offscreen.
- Update interpolators for overview to home transition.
- Align 2 button mode transition with 0 button mode.

Test: Visually checking all of these. As appropriate, repeat in 0, 2, 3
button modes, landscape/portrait/fake landscape, and 3P launcher
- Quick switch from home
- Home to overview
- Overview to home (swipe up)
- Overview to home (tap outside)
- Overview to home (back invocation)
- Quick switch from app
- Swipe up and hold from app
- Dismiss an app
- Empty recents
- Split select state to home
- Modal state to home

Bug: 185411781
Change-Id: Ic59b877ccc0050afd7cd478778e9eeb60e2e47f7

quickstep/src/com/android/quickstep/fallback/FallbackRecentsStateController.java

@@ -22,7 +22,8 @@ import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_TR
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_TRANSLATE_Y;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_SCRIM_FADE;
 import static com.android.launcher3.states.StateAnimationConfig.SKIP_OVERVIEW;
-import static com.android.quickstep.views.RecentsView.ADJACENT_PAGE_OFFSET;
+import static com.android.quickstep.views.RecentsView.ADJACENT_PAGE_HORIZONTAL_OFFSET;
+import static com.android.quickstep.views.RecentsView.ADJACENT_PAGE_VERTICAL_OFFSET;
 import static com.android.quickstep.views.RecentsView.FULLSCREEN_PROGRESS;
 import static com.android.quickstep.views.RecentsView.RECENTS_GRID_PROGRESS;
 import static com.android.quickstep.views.RecentsView.RECENTS_SCALE_PROPERTY;
@@ -86,8 +87,10 @@ public class FallbackRecentsStateController implements StateHandler<RecentsState
         float[] scaleAndOffset = state.getOverviewScaleAndOffset(mActivity);
         setter.setFloat(mRecentsView, RECENTS_SCALE_PROPERTY, scaleAndOffset[0],
                 config.getInterpolator(ANIM_OVERVIEW_SCALE, LINEAR));
-        setter.setFloat(mRecentsView, ADJACENT_PAGE_OFFSET, scaleAndOffset[1],
+        setter.setFloat(mRecentsView, ADJACENT_PAGE_HORIZONTAL_OFFSET, scaleAndOffset[1],
                 config.getInterpolator(ANIM_OVERVIEW_TRANSLATE_X, LINEAR));
+        setter.setFloat(mRecentsView, ADJACENT_PAGE_VERTICAL_OFFSET, scaleAndOffset[2],
+                config.getInterpolator(ANIM_OVERVIEW_TRANSLATE_Y, LINEAR));
         setter.setFloat(mRecentsView, TASK_SECONDARY_TRANSLATION, 0f,
                 config.getInterpolator(ANIM_OVERVIEW_TRANSLATE_Y, LINEAR));