Merge "Create a private flag to control shouldOptimizeMeasure" into tm-qpr-dev

core/java/android/view/ViewRootImpl.java

@@ -73,6 +73,7 @@ import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_FIT_INSETS_CO
 import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_DECOR_VIEW_VISIBILITY;
 import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_INSET_PARENT_FRAME_BY_IME;
 import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_LAYOUT_SIZE_EXTENDED_BY_CUTOUT;
+import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_OPTIMIZE_MEASURE;
 import static android.view.WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE;
 import static android.view.WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST;
 import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_STARTING;
@@ -2766,7 +2767,7 @@ public final class ViewRootImpl implements ViewParent,
      * TODO(b/260382739): Apply this to all windows.
      */
     private static boolean shouldOptimizeMeasure(final WindowManager.LayoutParams lp) {
-        return lp.type == TYPE_NOTIFICATION_SHADE;
+        return (lp.privateFlags & PRIVATE_FLAG_OPTIMIZE_MEASURE) != 0;
     }
 
     private Rect getWindowBoundsInsetSystemBars() {

core/java/android/view/WindowManager.java

@@ -2579,6 +2579,15 @@ public interface WindowManager extends ViewManager {
          * {@hide} */
         public static final int PRIVATE_FLAG_SYSTEM_ERROR = 0x00000100;
 
+        /**
+         * Flag to indicate that the view hierarchy of the window can only be measured when
+         * necessary. If a window size can be known by the LayoutParams, we can use the size to
+         * relayout window, and we don't have to measure the view hierarchy before laying out the
+         * views. This reduces the chances to perform measure.
+         * {@hide}
+         */
+        public static final int PRIVATE_FLAG_OPTIMIZE_MEASURE = 0x00000200;
+
         /**
          * Flag that prevents the wallpaper behind the current window from receiving touch events.
          *
@@ -2781,6 +2790,7 @@ public interface WindowManager extends ViewManager {
                 PRIVATE_FLAG_NO_MOVE_ANIMATION,
                 PRIVATE_FLAG_COMPATIBLE_WINDOW,
                 PRIVATE_FLAG_SYSTEM_ERROR,
+                PRIVATE_FLAG_OPTIMIZE_MEASURE,
                 PRIVATE_FLAG_DISABLE_WALLPAPER_TOUCH_EVENTS,
                 PRIVATE_FLAG_FORCE_SHOW_STATUS_BAR,
                 PRIVATE_FLAG_LAYOUT_SIZE_EXTENDED_BY_CUTOUT,
@@ -2840,6 +2850,10 @@ public interface WindowManager extends ViewManager {
                         mask = PRIVATE_FLAG_SYSTEM_ERROR,
                         equals = PRIVATE_FLAG_SYSTEM_ERROR,
                         name = "SYSTEM_ERROR"),
+                @ViewDebug.FlagToString(
+                        mask = PRIVATE_FLAG_OPTIMIZE_MEASURE,
+                        equals = PRIVATE_FLAG_OPTIMIZE_MEASURE,
+                        name = "OPTIMIZE_MEASURE"),
                 @ViewDebug.FlagToString(
                         mask = PRIVATE_FLAG_DISABLE_WALLPAPER_TOUCH_EVENTS,
                         equals = PRIVATE_FLAG_DISABLE_WALLPAPER_TOUCH_EVENTS,

packages/SystemUI/src/com/android/systemui/shade/NotificationShadeWindowControllerImpl.java

@@ -19,6 +19,7 @@ package com.android.systemui.shade;
 import static android.view.WindowInsetsController.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE;
 import static android.view.WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_ALWAYS;
 import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_BEHAVIOR_CONTROLLED;
+import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_OPTIMIZE_MEASURE;
 
 import static com.android.systemui.DejankUtils.whitelistIpcs;
 import static com.android.systemui.statusbar.NotificationRemoteInputManager.ENABLE_REMOTE_INPUT;
@@ -251,6 +252,7 @@ public class NotificationShadeWindowControllerImpl implements NotificationShadeW
         mLp.setTitle("NotificationShade");
         mLp.packageName = mContext.getPackageName();
         mLp.layoutInDisplayCutoutMode = LAYOUT_IN_DISPLAY_CUTOUT_MODE_ALWAYS;
+        mLp.privateFlags |= PRIVATE_FLAG_OPTIMIZE_MEASURE;
 
         // We use BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE here, however, there is special logic in
         // window manager which disables the transient show behavior.