commit 43a161579600c2f7cbce8d96e2474f97983f7d15
author Zak Cohen <zakcohen@google.com> Tue Feb 25 14:29:37 2020 -0800
committer Zak Cohen <zakcohen@google.com> Tue Feb 25 15:09:12 2020 -0800
tree 16f8f948ba0c52201d714096a1a967785356c09f
parent d71c3b185de62a50b730bbf389d48ead9ccc6315

Hide apps view in transitions if none of its parts are visible.

Check where the all apps view has any pieces visible, if not hide it.

Test: local
Change-Id: I1d9b957b6c10dfbe4beaa56c4fee920844699a6c

src/com/android/launcher3/LauncherState.java

diff --git a/src/com/android/launcher3/LauncherState.java b/src/com/android/launcher3/LauncherState.java
index 16be391..36440c9 100644
--- a/src/com/android/launcher3/LauncherState.java
+++ b/src/com/android/launcher3/LauncherState.java
@@ -74,6 +74,10 @@
     public static final int VERTICAL_SWIPE_INDICATOR = 1 << 5;
     public static final int RECENTS_CLEAR_ALL_BUTTON = 1 << 6;
 
+    /** Mask of all the items that are contained in the apps view. */
+    public static final int APPS_VIEW_ITEM_MASK =
+            HOTSEAT_SEARCH_BOX | ALL_APPS_HEADER | ALL_APPS_HEADER_EXTRA | ALL_APPS_CONTENT;
+
     protected static final int FLAG_MULTI_PAGE = 1 << 0;
     protected static final int FLAG_DISABLE_ACCESSIBILITY = 1 << 1;
     protected static final int FLAG_DISABLE_RESTORE = 1 << 2;

src/com/android/launcher3/allapps/AllAppsTransitionController.java

diff --git a/src/com/android/launcher3/allapps/AllAppsTransitionController.java b/src/com/android/launcher3/allapps/AllAppsTransitionController.java
index 6aa3efc..e49ff30 100644
--- a/src/com/android/launcher3/allapps/AllAppsTransitionController.java
+++ b/src/com/android/launcher3/allapps/AllAppsTransitionController.java
@@ -2,6 +2,7 @@
 
 import static com.android.launcher3.LauncherState.ALL_APPS_CONTENT;
 import static com.android.launcher3.LauncherState.ALL_APPS_HEADER_EXTRA;
+import static com.android.launcher3.LauncherState.APPS_VIEW_ITEM_MASK;
 import static com.android.launcher3.LauncherState.OVERVIEW;
 import static com.android.launcher3.LauncherState.VERTICAL_SWIPE_INDICATOR;
 import static com.android.launcher3.anim.AnimatorSetBuilder.ANIM_ALL_APPS_FADE;
@@ -203,6 +204,8 @@
         boolean hasHeaderExtra = (visibleElements & ALL_APPS_HEADER_EXTRA) != 0;
         boolean hasAllAppsContent = (visibleElements & ALL_APPS_CONTENT) != 0;
 
+        boolean hasAnyVisibleItem = (visibleElements & APPS_VIEW_ITEM_MASK) != 0;
+
         Interpolator allAppsFade = builder.getInterpolator(ANIM_ALL_APPS_FADE, LINEAR);
         Interpolator headerFade = builder.getInterpolator(ANIM_ALL_APPS_HEADER_FADE, allAppsFade);
         setter.setViewAlpha(mAppsView.getContentView(), hasAllAppsContent ? 1 : 0, allAppsFade);
@@ -213,6 +216,8 @@
 
         setter.setInt(mScrimView, ScrimView.DRAG_HANDLE_ALPHA,
                 (visibleElements & VERTICAL_SWIPE_INDICATOR) != 0 ? 255 : 0, allAppsFade);
+
+        setter.setViewAlpha(mAppsView, hasAnyVisibleItem ? 1 : 0, allAppsFade);
     }
 
     public AnimatorListenerAdapter getProgressAnimatorListener() {