commit b73e5917123b0d5b3f5ad4b9a69053833ce0c4dd
author Jon Miranda <jonmiranda@google.com> Tue Jun 15 18:07:26 2021 -0700
committer Jonathan Miranda <jonmiranda@google.com> Wed Jun 16 18:13:23 2021 +0000
tree 75e765accaa46aa5b1179e207dc2940afa4777ab
parent 1560f401aeeb50c3962cb243d430ff6c8025fc97

Add ENABLE_SCRIM_FOR_APP_LAUNCH feature flag.

Bug: 191088291
Test: manual
Change-Id: Ia144c72e0fe1292ed856a37ee714a1cda50083d5

quickstep/src/com/android/launcher3/QuickstepTransitionManager.java

diff --git a/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java b/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
index 65df237..31cf51c 100644
--- a/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
+++ b/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
@@ -34,6 +34,7 @@
 import static com.android.launcher3.anim.Interpolators.DEACCEL_1_7;
 import static com.android.launcher3.anim.Interpolators.EXAGGERATED_EASE;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
+import static com.android.launcher3.config.FeatureFlags.ENABLE_SCRIM_FOR_APP_LAUNCH;
 import static com.android.launcher3.config.FeatureFlags.KEYGUARD_ANIMATION;
 import static com.android.launcher3.config.FeatureFlags.SEPARATE_RECENTS_ACTIVITY;
 import static com.android.launcher3.dragndrop.DragLayer.ALPHA_INDEX_TRANSITIONS;
@@ -508,20 +509,23 @@
                 launcherAnimator.play(scaleAnim);
             });
 
-            int scrimColor = Themes.getAttrColor(mLauncher, R.attr.overviewScrimColor);
-            int scrimColorTrans = ColorUtils.setAlphaComponent(scrimColor, 0);
-            int[] colors = isAppOpening
-                    ? new int[] {scrimColorTrans, scrimColor}
-                    : new int[] {scrimColor, scrimColorTrans};
-            ScrimView scrimView = mLauncher.getScrimView();
-            if (scrimView.getBackground() instanceof ColorDrawable) {
-                scrimView.setBackgroundColor(colors[0]);
+            final boolean scrimEnabled = ENABLE_SCRIM_FOR_APP_LAUNCH.get();
+            if (scrimEnabled) {
+                int scrimColor = Themes.getAttrColor(mLauncher, R.attr.overviewScrimColor);
+                int scrimColorTrans = ColorUtils.setAlphaComponent(scrimColor, 0);
+                int[] colors = isAppOpening
+                        ? new int[]{scrimColorTrans, scrimColor}
+                        : new int[]{scrimColor, scrimColorTrans};
+                ScrimView scrimView = mLauncher.getScrimView();
+                if (scrimView.getBackground() instanceof ColorDrawable) {
+                    scrimView.setBackgroundColor(colors[0]);
 
-                ObjectAnimator scrim = ObjectAnimator.ofArgb(scrimView, VIEW_BACKGROUND_COLOR,
-                        colors);
-                scrim.setDuration(CONTENT_SCRIM_DURATION);
-                scrim.setInterpolator(DEACCEL_1_5);
-                launcherAnimator.play(scrim);
+                    ObjectAnimator scrim = ObjectAnimator.ofArgb(scrimView, VIEW_BACKGROUND_COLOR,
+                            colors);
+                    scrim.setDuration(CONTENT_SCRIM_DURATION);
+                    scrim.setInterpolator(DEACCEL_1_5);
+                    launcherAnimator.play(scrim);
+                }
             }
 
             // Pause page indicator animations as they lead to layer trashing.
@@ -532,7 +536,9 @@
                     SCALE_PROPERTY.set(view, 1f);
                     view.setLayerType(View.LAYER_TYPE_NONE, null);
                 });
-                scrimView.setBackgroundColor(Color.TRANSPARENT);
+                if (scrimEnabled) {
+                    mLauncher.getScrimView().setBackgroundColor(Color.TRANSPARENT);
+                }
                 mLauncher.getWorkspace().getPageIndicator().skipAnimationsToEnd();
             };
         }

src/com/android/launcher3/config/FeatureFlags.java

diff --git a/src/com/android/launcher3/config/FeatureFlags.java b/src/com/android/launcher3/config/FeatureFlags.java
index 0e710b7..65b4c3b 100644
--- a/src/com/android/launcher3/config/FeatureFlags.java
+++ b/src/com/android/launcher3/config/FeatureFlags.java
@@ -220,6 +220,10 @@
             "ENABLE_TWO_PANEL_HOME", false,
             "Uses two panel on home screen. Only applicable on large screen devices.");
 
+    public static final BooleanFlag ENABLE_SCRIM_FOR_APP_LAUNCH = getDebugFlag(
+            "ENABLE_SCRIM_FOR_APP_LAUNCH", false,
+            "Enables scrim during app launch animation.");
+
     public static final BooleanFlag ENABLE_SPLIT_SELECT = getDebugFlag(
             "ENABLE_SPLIT_SELECT", false, "Uses new split screen selection overview UI");