Merge "Fix launcher flicker when unlocking on seascape." into sc-dev
diff --git a/src/com/android/launcher3/DeviceProfile.java b/src/com/android/launcher3/DeviceProfile.java
index 12ce9f3..f681d75 100644
--- a/src/com/android/launcher3/DeviceProfile.java
+++ b/src/com/android/launcher3/DeviceProfile.java
@@ -607,8 +607,9 @@
      */
     public boolean updateIsSeascape(Context context) {
         if (isVerticalBarLayout()) {
-            boolean isSeascape = DisplayController.getDefaultDisplay(context).getInfo().rotation
-                    == Surface.ROTATION_270;
+            // Check an up-to-date info.
+            boolean isSeascape = DisplayController.getDefaultDisplay(context)
+                    .createInfoForContext(context).rotation == Surface.ROTATION_270;
             if (mIsSeascape != isSeascape) {
                 mIsSeascape = isSeascape;
                 return true;
diff --git a/src/com/android/launcher3/util/DisplayController.java b/src/com/android/launcher3/util/DisplayController.java
index 355c949..3b7bcc2 100644
--- a/src/com/android/launcher3/util/DisplayController.java
+++ b/src/com/android/launcher3/util/DisplayController.java
@@ -31,6 +31,8 @@
 
 import androidx.annotation.VisibleForTesting;
 
+import com.android.launcher3.Utilities;
+
 import java.util.ArrayList;
 
 /**
@@ -179,23 +181,35 @@
             return mInfo;
         }
 
+        /** Creates and up-to-date DisplayController.Info for the given context. */
+        public Info createInfoForContext(Context context) {
+            Display display = Utilities.ATLEAST_R
+                    ? context.getDisplay()
+                    : context
+                        .getSystemService(DisplayManager.class)
+                        .getDisplay(mId);
+            return display == null
+                    ? new Info(context)
+                    : new Info(context, display);
+        }
+
         protected void handleOnChange() {
             Info oldInfo = mInfo;
-            Info info = new Info(mDisplayContext);
+            Info newInfo = createInfoForContext(mDisplayContext);
 
             int change = 0;
-            if (info.hasDifferentSize(oldInfo)) {
+            if (newInfo.hasDifferentSize(oldInfo)) {
                 change |= CHANGE_SIZE;
             }
-            if (oldInfo.rotation != info.rotation) {
+            if (newInfo.rotation != oldInfo.rotation) {
                 change |= CHANGE_ROTATION;
             }
-            if (info.singleFrameMs != oldInfo.singleFrameMs) {
+            if (newInfo.singleFrameMs != oldInfo.singleFrameMs) {
                 change |= CHANGE_FRAME_DELAY;
             }
 
             if (change != 0) {
-                mInfo = info;
+                mInfo = newInfo;
                 final int flags = change;
                 MAIN_EXECUTOR.execute(() -> notifyChange(flags));
             }