commit 34659d2153b3b6c2feb0ad59bd7d55af1c5506fb
author TreeHugger Robot <treehugger-gerrit@google.com> Tue Apr 30 21:27:23 2019 +0000
committer Android (Google) Code Review <android-gerrit@google.com> Tue Apr 30 21:27:23 2019 +0000
tree 1f71e8658eab41eaaf263e5256ce5249a20cb37d
parent 6380f51960070631946ded8464d14b04db90b8b7
parent 8f6d41ee53a2b2bf9122cab52333933fdb3b5ae2

Merge "Fade task items when swiping out" into ub-launcher3-qt-dev

go/quickstep/res/layout/icon_recents_root_view.xml

diff --git a/go/quickstep/res/layout/icon_recents_root_view.xml b/go/quickstep/res/layout/icon_recents_root_view.xml
index b64b7fd..595a380 100644
--- a/go/quickstep/res/layout/icon_recents_root_view.xml
+++ b/go/quickstep/res/layout/icon_recents_root_view.xml
@@ -18,14 +18,16 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:orientation="vertical">
+    android:orientation="vertical"
+    android:clipChildren="false">
     <androidx.recyclerview.widget.RecyclerView
         android:id="@+id/recent_task_recycler_view"
         android:layout_width="@dimen/recents_list_width"
         android:layout_height="match_parent"
         android:layout_gravity="center_horizontal"
         android:scrollbars="none"
-        android:clipToPadding="false"/>
+        android:clipToPadding="false"
+        android:clipChildren="false"/>
     <TextView
         android:id="@+id/recent_task_empty_view"
         android:layout_width="match_parent"

go/quickstep/src/com/android/quickstep/TaskSwipeCallback.java

diff --git a/go/quickstep/src/com/android/quickstep/TaskSwipeCallback.java b/go/quickstep/src/com/android/quickstep/TaskSwipeCallback.java
index 19951bb..7686543 100644
--- a/go/quickstep/src/com/android/quickstep/TaskSwipeCallback.java
+++ b/go/quickstep/src/com/android/quickstep/TaskSwipeCallback.java
@@ -19,6 +19,8 @@
 
 import static com.android.quickstep.TaskAdapter.ITEM_TYPE_CLEAR_ALL;
 
+import android.graphics.Canvas;
+
 import androidx.annotation.NonNull;
 import androidx.recyclerview.widget.ItemTouchHelper;
 import androidx.recyclerview.widget.RecyclerView;
@@ -50,6 +52,18 @@
     }
 
     @Override
+    public void onChildDraw(@NonNull Canvas c, @NonNull RecyclerView recyclerView,
+            @NonNull ViewHolder viewHolder, float dX, float dY, int actionState,
+            boolean isCurrentlyActive) {
+        if (actionState == ItemTouchHelper.ACTION_STATE_SWIPE) {
+            float alpha = 1.0f - dX / (float) viewHolder.itemView.getWidth();
+            viewHolder.itemView.setAlpha(alpha);
+        }
+        super.onChildDraw(c, recyclerView, viewHolder, dX, dY,
+                    actionState, isCurrentlyActive);
+    }
+
+    @Override
     public int getSwipeDirs(@NonNull RecyclerView recyclerView,
             @NonNull ViewHolder viewHolder) {
         if (viewHolder.getItemViewType() == ITEM_TYPE_CLEAR_ALL) {