Merge "Fading out keyguard only content instead of occluding them with the scrim" into sc-dev

packages/SystemUI/res/layout/status_bar_expanded.xml

@@ -64,18 +64,6 @@
         android:clipToPadding="false"
         android:clipChildren="false">
 
-        <com.android.systemui.scrim.ScrimView
-            android:id="@+id/scrim_notifications"
-            android:layout_width="0dp"
-            android:layout_height="0dp"
-            android:importantForAccessibility="no"
-            systemui:ignoreRightInset="true"
-            systemui:layout_constraintStart_toStartOf="parent"
-            systemui:layout_constraintEnd_toEndOf="parent"
-            systemui:layout_constraintTop_toTopOf="parent"
-            systemui:layout_constraintBottom_toBottomOf="parent"
-        />
-
         <include
             layout="@layout/keyguard_status_view"
             android:visibility="gone"/>

packages/SystemUI/res/layout/super_notification_shade.xml

@@ -51,6 +51,14 @@
         sysui:ignoreRightInset="true"
         />
 
+    <com.android.systemui.scrim.ScrimView
+        android:id="@+id/scrim_notifications"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:importantForAccessibility="no"
+        sysui:ignoreRightInset="true"
+        />
+
     <com.android.systemui.statusbar.LightRevealScrim
             android:id="@+id/light_reveal_scrim"
             android:layout_width="match_parent"

packages/SystemUI/src/com/android/keyguard/LockIconView.java

@@ -87,6 +87,11 @@ public class LockIconView extends ImageView {
         updateSensorRect(h, w);
     }
 
+    @Override
+    public boolean hasOverlappingRendering() {
+        return false;
+    }
+
     float getLocationTop() {
         return mLockIconCenter.y - mRadius;
     }

packages/SystemUI/src/com/android/keyguard/LockIconViewController.java

@@ -451,4 +451,11 @@ public class LockIconViewController extends ViewController<LockIconView> impleme
 
     private final AccessibilityManager.TouchExplorationStateChangeListener
             mTouchExplorationStateChangeListener = enabled -> updateClickListener();
+
+    /**
+     * Set the alpha of this view.
+     */
+    public void setAlpha(float alpha) {
+        mView.setAlpha(alpha);
+    }
 }

packages/SystemUI/src/com/android/systemui/statusbar/LockscreenShadeTransitionController.kt

@@ -287,6 +287,8 @@ class LockscreenShadeTransitionController @Inject constructor(
                     // TODO: appear media also in split shade
                     val mediaAmount = if (useSplitShade) 0f else field
                     mediaHierarchyManager.setTransitionToFullShadeAmount(mediaAmount)
+                    // Fade out all content only visible on the lockscreen
+                    notificationPanelController.setKeyguardOnlyContentAlpha(1.0f - scrimProgress)
                 }
             }
         }

packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelViewController.java

@@ -577,6 +577,11 @@ public class NotificationPanelViewController extends PanelViewController {
      */
     private ValueAnimator mQsClippingAnimation = null;
     private final Rect mKeyguardStatusAreaClipBounds = new Rect();
+
+    /**
+     * The alpha of the views which only show on the keyguard but not in shade / shade locked
+     */
+    private float mKeyguardOnlyContentAlpha = 1.0f;
     private int mOldLayoutDirection;
     private NotificationShelfController mNotificationShelfController;
     private int mScrimCornerRadius;
@@ -1412,12 +1417,13 @@ public class NotificationPanelViewController extends PanelViewController {
     }
 
     private void updateClock() {
-        mKeyguardStatusViewController.setAlpha(mClockPositionResult.clockAlpha);
+        float alpha = mClockPositionResult.clockAlpha * mKeyguardOnlyContentAlpha;
+        mKeyguardStatusViewController.setAlpha(alpha);
         if (mKeyguardQsUserSwitchController != null) {
-            mKeyguardQsUserSwitchController.setAlpha(mClockPositionResult.clockAlpha);
+            mKeyguardQsUserSwitchController.setAlpha(alpha);
         }
         if (mKeyguardUserSwitcherController != null) {
-            mKeyguardUserSwitcherController.setAlpha(mClockPositionResult.clockAlpha);
+            mKeyguardUserSwitcherController.setAlpha(alpha);
         }
     }
 
@@ -2024,6 +2030,7 @@ public class NotificationPanelViewController extends PanelViewController {
     private void maybeAnimateBottomAreaAlpha() {
         mBottomAreaShadeAlphaAnimator.cancel();
         if (mBarState == StatusBarState.SHADE_LOCKED) {
+            mBottomAreaShadeAlphaAnimator.setFloatValues(mBottomAreaShadeAlpha, 0.0f);
             mBottomAreaShadeAlphaAnimator.start();
         } else {
             mBottomAreaShadeAlpha = 1f;
@@ -2439,6 +2446,20 @@ public class NotificationPanelViewController extends PanelViewController {
         updateQsExpansion();
     }
 
+    /**
+     * Set the alpha of the keyguard elements which only show on the lockscreen, but not in
+     * shade locked / shade. This is used when dragging down to the full shade.
+     */
+    public void setKeyguardOnlyContentAlpha(float keyguardAlpha) {
+        mKeyguardOnlyContentAlpha = Interpolators.ALPHA_IN.getInterpolation(keyguardAlpha);
+        if (mBarState == KEYGUARD) {
+            // If the animator is running, it's already fading out the content and this is a reset
+            mBottomAreaShadeAlpha = mKeyguardOnlyContentAlpha;
+            updateKeyguardBottomAreaAlpha();
+        }
+        updateClock();
+    }
+
     private void trackMovement(MotionEvent event) {
         if (mQsVelocityTracker != null) mQsVelocityTracker.addMovement(event);
     }
@@ -2897,6 +2918,7 @@ public class NotificationPanelViewController extends PanelViewController {
         if (ambientIndicationContainer != null) {
             ambientIndicationContainer.setAlpha(alpha);
         }
+        mLockIconViewController.setAlpha(alpha);
     }
 
     /**