Preloads the icon drawable for app open to reduce latency b/w swapping views.

For app close, we already load the icon as soon as we can.

Bug: 135130011
Change-Id: Ia2c45737cf24d1ab5911b222ae097d7a1f9d6a31

1 files changed, 5 insertions, 0 deletions

diff --git a/src/com/android/launcher3/touch/ItemClickHandler.java b/src/com/android/launcher3/touch/ItemClickHandler.java
index f858dc4c6..85f763d09 100644
--- a/src/com/android/launcher3/touch/ItemClickHandler.java
+++ b/src/com/android/launcher3/touch/ItemClickHandler.java
@@ -49,6 +49,7 @@ import com.android.launcher3.folder.Folder;
 import com.android.launcher3.folder.FolderIcon;
 import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.util.PackageManagerHelper;
+import com.android.launcher3.views.FloatingIconView;
 import com.android.launcher3.widget.PendingAppWidgetHostView;
 import com.android.launcher3.widget.WidgetAddFlowHandler;
 
@@ -259,6 +260,10 @@ public class ItemClickHandler {
                 intent.setPackage(null);
             }
         }
+        if (v != null && launcher.getAppTransitionManager().supportsAdaptiveIconAnimation()) {
+            // Preload the icon to reduce latency b/w swapping the floating view with the original.
+            FloatingIconView.fetchIcon(launcher, v, item, true /* isOpening */);
+        }
         launcher.startActivitySafely(v, intent, item, sourceContainer);
     }
 }