Polish app open scrim animation.

We used to hide the scrim animation immediately, now we fade it out along with
the rest of the draglayer.

Also uses staggered workspace animation when resuming launcher from other
means ie. back gesture -> home

Bug: 145242991
Change-Id: Ib2161746f79ae5eaceac02d1416aa9bd7ecfeac4
diff --git a/quickstep/src/com/android/launcher3/QuickstepAppTransitionManagerImpl.java b/quickstep/src/com/android/launcher3/QuickstepAppTransitionManagerImpl.java
index a366f08..c93a4ba 100644
--- a/quickstep/src/com/android/launcher3/QuickstepAppTransitionManagerImpl.java
+++ b/quickstep/src/com/android/launcher3/QuickstepAppTransitionManagerImpl.java
@@ -69,7 +69,6 @@
 
 import com.android.launcher3.DeviceProfile.OnDeviceProfileChangeListener;
 import com.android.launcher3.allapps.AllAppsTransitionController;
-import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.dragndrop.DragLayer;
 import com.android.launcher3.shortcuts.DeepShortcutView;
@@ -387,18 +386,35 @@
             alpha.setInterpolator(LINEAR);
             launcherAnimator.play(alpha);
 
-            mDragLayer.setTranslationY(trans[0]);
-            ObjectAnimator transY = ObjectAnimator.ofFloat(mDragLayer, View.TRANSLATION_Y, trans);
-            transY.setInterpolator(AGGRESSIVE_EASE);
-            transY.setDuration(CONTENT_TRANSLATION_DURATION);
-            launcherAnimator.play(transY);
+            Workspace workspace = mLauncher.getWorkspace();
+            View currentPage = ((CellLayout) workspace.getChildAt(workspace.getCurrentPage()))
+                    .getShortcutsAndWidgets();
+            View hotseat = mLauncher.getHotseat();
+            View qsb = mLauncher.findViewById(R.id.search_container_all_apps);
 
-            mDragLayer.getScrim().hideSysUiScrim(true);
+            currentPage.setLayerType(View.LAYER_TYPE_HARDWARE, null);
+            hotseat.setLayerType(View.LAYER_TYPE_HARDWARE, null);
+            qsb.setLayerType(View.LAYER_TYPE_HARDWARE, null);
+
+            launcherAnimator.play(ObjectAnimator.ofFloat(currentPage, View.TRANSLATION_Y, trans));
+            launcherAnimator.play(ObjectAnimator.ofFloat(hotseat, View.TRANSLATION_Y, trans));
+            launcherAnimator.play(ObjectAnimator.ofFloat(qsb, View.TRANSLATION_Y, trans));
+
             // Pause page indicator animations as they lead to layer trashing.
             mLauncher.getWorkspace().getPageIndicator().pauseAnimations();
-            mDragLayer.setLayerType(View.LAYER_TYPE_HARDWARE, null);
 
-            endListener = this::resetContentView;
+            endListener = () -> {
+                currentPage.setTranslationY(0);
+                hotseat.setTranslationY(0);
+                qsb.setTranslationY(0);
+
+                currentPage.setLayerType(View.LAYER_TYPE_NONE, null);
+                hotseat.setLayerType(View.LAYER_TYPE_NONE, null);
+                qsb.setLayerType(View.LAYER_TYPE_NONE, null);
+
+                mDragLayerAlpha.setValue(1f);
+                mLauncher.getWorkspace().getPageIndicator().skipAnimationsToEnd();
+            };
         }
         return new Pair<>(launcherAnimator, endListener);
     }
@@ -760,62 +776,6 @@
         return closingAnimator;
     }
 
-    /**
-     * Creates an animator that modifies Launcher as a result from 
-     * {@link #createWallpaperOpenRunner}.
-     */
-    private void createLauncherResumeAnimation(AnimatorSet anim) {
-        if (mLauncher.isInState(LauncherState.ALL_APPS)) {
-            Pair<AnimatorSet, Runnable> contentAnimator =
-                    getLauncherContentAnimator(false /* isAppOpening */,
-                            new float[] {-mContentTransY, 0});
-            contentAnimator.first.setStartDelay(LAUNCHER_RESUME_START_DELAY);
-            anim.play(contentAnimator.first);
-            anim.addListener(new AnimatorListenerAdapter() {
-                @Override
-                public void onAnimationEnd(Animator animation) {
-                    contentAnimator.second.run();
-                }
-            });
-        } else {
-            AnimatorSet workspaceAnimator = new AnimatorSet();
-
-            mDragLayer.setTranslationY(-mWorkspaceTransY);;
-            workspaceAnimator.play(ObjectAnimator.ofFloat(mDragLayer, View.TRANSLATION_Y,
-                    -mWorkspaceTransY, 0));
-
-            mDragLayerAlpha.setValue(0);
-            workspaceAnimator.play(ObjectAnimator.ofFloat(
-                    mDragLayerAlpha, MultiValueAlpha.VALUE, 0, 1f));
-
-            workspaceAnimator.setStartDelay(LAUNCHER_RESUME_START_DELAY);
-            workspaceAnimator.setDuration(333);
-            workspaceAnimator.setInterpolator(Interpolators.DEACCEL_1_7);
-
-            mDragLayer.getScrim().hideSysUiScrim(true);
-
-            // Pause page indicator animations as they lead to layer trashing.
-            mLauncher.getWorkspace().getPageIndicator().pauseAnimations();
-            mDragLayer.setLayerType(View.LAYER_TYPE_HARDWARE, null);
-
-            workspaceAnimator.addListener(new AnimatorListenerAdapter() {
-                @Override
-                public void onAnimationEnd(Animator animation) {
-                    resetContentView();
-                }
-            });
-            anim.play(workspaceAnimator);
-        }
-    }
-
-    private void resetContentView() {
-        mLauncher.getWorkspace().getPageIndicator().skipAnimationsToEnd();
-        mDragLayerAlpha.setValue(1f);
-        mDragLayer.setLayerType(View.LAYER_TYPE_NONE, null);
-        mDragLayer.setTranslationY(0f);
-        mDragLayer.getScrim().hideSysUiScrim(false);
-    }
-
     private boolean hasControlRemoteAppTransitionPermission() {
         return mLauncher.checkSelfPermission(CONTROL_REMOTE_APP_TRANSITION_PERMISSION)
                 == PackageManager.PERMISSION_GRANTED;
@@ -888,15 +848,25 @@
                     // Only register the content animation for cancellation when state changes
                     mLauncher.getStateManager().setCurrentAnimation(anim);
 
-                    if (mFromUnlock) {
+                    if (mLauncher.isInState(LauncherState.ALL_APPS)) {
+                        Pair<AnimatorSet, Runnable> contentAnimator =
+                                getLauncherContentAnimator(false /* isAppOpening */,
+                                        new float[] {-mContentTransY, 0});
+                        contentAnimator.first.setStartDelay(LAUNCHER_RESUME_START_DELAY);
+                        anim.play(contentAnimator.first);
+                        anim.addListener(new AnimatorListenerAdapter() {
+                            @Override
+                            public void onAnimationEnd(Animator animation) {
+                                contentAnimator.second.run();
+                            }
+                        });
+                    } else {
                         float velocityDpPerS = DynamicResource.provider(mLauncher)
                                 .getDimension(R.dimen.unlock_staggered_velocity_dp_per_s);
                         float velocityPxPerS = TypedValue.applyDimension(COMPLEX_UNIT_DIP,
                                 velocityDpPerS, mLauncher.getResources().getDisplayMetrics());
                         anim.play(new StaggeredWorkspaceAnim(mLauncher, velocityPxPerS, false)
                                 .getAnimators());
-                    } else {
-                        createLauncherResumeAnimation(anim);
                     }
                 }
             }
diff --git a/src/com/android/launcher3/graphics/WorkspaceAndHotseatScrim.java b/src/com/android/launcher3/graphics/WorkspaceAndHotseatScrim.java
index 2c7f891..b289c0b 100644
--- a/src/com/android/launcher3/graphics/WorkspaceAndHotseatScrim.java
+++ b/src/com/android/launcher3/graphics/WorkspaceAndHotseatScrim.java
@@ -236,14 +236,6 @@
         }
     }
 
-    public void hideSysUiScrim(boolean hideSysUiScrim) {
-        mHideSysUiScrim = hideSysUiScrim || (mTopScrim == null);
-        if (!hideSysUiScrim) {
-            mAnimateScrimOnNextDraw = true;
-        }
-        invalidate();
-    }
-
     private void setSysUiProgress(float progress) {
         if (progress != mSysUiProgress) {
             mSysUiProgress = progress;