Add springs for recents dismiss animations.

Bug: 111698021
Change-Id: If518ba5946ea6fada67f549f2f29e1ab1c89969d

6 files changed, 79 insertions, 31 deletions

diff --git a/quickstep/src/com/android/launcher3/uioverrides/TaskViewTouchController.java b/quickstep/src/com/android/launcher3/uioverrides/TaskViewTouchController.java
index 50af4a1d6..fb1828b07 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/TaskViewTouchController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/TaskViewTouchController.java
@@ -18,6 +18,7 @@ package com.android.launcher3.uioverrides;
 import static com.android.launcher3.AbstractFloatingView.TYPE_ACCESSIBLE;
 import static com.android.launcher3.Utilities.SINGLE_FRAME_MS;
 import static com.android.launcher3.anim.Interpolators.scrollInterpolatorForVelocity;
+import static com.android.launcher3.config.FeatureFlags.QUICKSTEP_SPRINGS;
 import static com.android.launcher3.config.FeatureFlags.ENABLE_QUICKSTEP_LIVE_TILE;
 
 import android.animation.Animator;
@@ -281,6 +282,9 @@ public abstract class TaskViewTouchController<T extends BaseDraggingActivity>
                 }
             });
         }
+        if (QUICKSTEP_SPRINGS.get()) {
+            mCurrentAnimation.dispatchOnStartWithVelocity(goingToEnd ? 1f : 0f, velocity);
+        }
         anim.start();
     }
 
diff --git a/quickstep/src/com/android/quickstep/ActivityControlHelper.java b/quickstep/src/com/android/quickstep/ActivityControlHelper.java
index d6a7f2175..fbb361811 100644
--- a/quickstep/src/com/android/quickstep/ActivityControlHelper.java
+++ b/quickstep/src/com/android/quickstep/ActivityControlHelper.java
@@ -23,7 +23,8 @@ import static com.android.launcher3.LauncherState.BACKGROUND_APP;
 import static com.android.launcher3.LauncherState.FAST_OVERVIEW;
 import static com.android.launcher3.LauncherState.NORMAL;
 import static com.android.launcher3.LauncherState.OVERVIEW;
-import static com.android.launcher3.allapps.AllAppsTransitionController.ALL_APPS_PROGRESS_SPRING;
+import static com.android.launcher3.allapps.AllAppsTransitionController.SPRING_DAMPING_RATIO;
+import static com.android.launcher3.allapps.AllAppsTransitionController.SPRING_STIFFNESS;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.launcher3.states.RotationHelper.REQUEST_LOCK;
 import static com.android.quickstep.TouchConsumer.INTERACTION_NORMAL;
@@ -394,9 +395,9 @@ public interface ActivityControlHelper<T extends BaseDraggingActivity> {
         }
 
         private Animator createShelfAnim(Launcher activity, float ... progressValues) {
-            Animator shiftAnim = new SpringObjectAnimator(activity.getAllAppsController(),
-                    ALL_APPS_PROGRESS_SPRING, "allAppsSpringFromACH",
-                    activity.getAllAppsController().getShiftRange(), progressValues);
+            Animator shiftAnim = new SpringObjectAnimator<>(activity.getAllAppsController(),
+                    "allAppsSpringFromACH", activity.getAllAppsController().getShiftRange(),
+                    SPRING_DAMPING_RATIO, SPRING_STIFFNESS, progressValues);
             shiftAnim.setInterpolator(LINEAR);
             return shiftAnim;
         }
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index 923da7b5c..c6f293d2b 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -22,6 +22,7 @@ import static com.android.launcher3.anim.Interpolators.ACCEL;
 import static com.android.launcher3.anim.Interpolators.ACCEL_2;
 import static com.android.launcher3.anim.Interpolators.FAST_OUT_SLOW_IN;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
+import static com.android.launcher3.config.FeatureFlags.QUICKSTEP_SPRINGS;
 import static com.android.launcher3.config.FeatureFlags.ENABLE_QUICKSTEP_LIVE_TILE;
 import static com.android.launcher3.uioverrides.TaskViewTouchController.SUCCESS_TRANSITION_PROGRESS;
 import static com.android.quickstep.util.ClipAnimationHelper.TransformParams;
@@ -66,16 +67,19 @@ import android.view.accessibility.AccessibilityNodeInfo;
 import android.widget.ListView;
 
 import androidx.annotation.Nullable;
+import androidx.dynamicanimation.animation.SpringForce;
 
 import com.android.launcher3.BaseActivity;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Insettable;
 import com.android.launcher3.InvariantDeviceProfile;
+import com.android.launcher3.LauncherAnimUtils.ViewProgressProperty;
 import com.android.launcher3.PagedView;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.AnimatorPlaybackController;
 import com.android.launcher3.anim.PropertyListBuilder;
+import com.android.launcher3.anim.SpringObjectAnimator;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Direction;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;
@@ -113,6 +117,10 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
 
     private static final String TAG = RecentsView.class.getSimpleName();
 
+    public static final float SPRING_MIN_VISIBLE_CHANGE = 0.001f;
+    public static final float SPRING_DAMPING_RATIO = SpringForce.DAMPING_RATIO_MEDIUM_BOUNCY;
+    public static final float SPRING_STIFFNESS = SpringForce.STIFFNESS_LOW;
+
     public static final FloatProperty<RecentsView> CONTENT_ALPHA =
             new FloatProperty<RecentsView>("contentAlpha") {
                 @Override
@@ -941,8 +949,15 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
 
     private void addDismissedTaskAnimations(View taskView, AnimatorSet anim, long duration) {
         addAnim(ObjectAnimator.ofFloat(taskView, ALPHA, 0), duration, ACCEL_2, anim);
-        addAnim(ObjectAnimator.ofFloat(taskView, TRANSLATION_Y, -taskView.getHeight()),
-                duration, LINEAR, anim);
+        if (QUICKSTEP_SPRINGS.get() && taskView instanceof TaskView)
+            addAnim(new SpringObjectAnimator<>(new ViewProgressProperty(taskView,
+                            View.TRANSLATION_Y), "taskViewTransY", SPRING_MIN_VISIBLE_CHANGE,
+                            SPRING_DAMPING_RATIO, SPRING_STIFFNESS, 0, -taskView.getHeight()),
+                    duration, LINEAR, anim);
+        else {
+            addAnim(ObjectAnimator.ofFloat(taskView, TRANSLATION_Y, -taskView.getHeight()),
+                    duration, LINEAR, anim);
+        }
     }
 
     private void removeTask(Task task, int index, PendingAnimation.OnEndListener onEndListener,
@@ -1012,8 +1027,16 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
                 }
                 int scrollDiff = newScroll[i] - oldScroll[i] + offset;
                 if (scrollDiff != 0) {
-                    addAnim(ObjectAnimator.ofFloat(child, TRANSLATION_X, scrollDiff),
-                            duration, ACCEL, anim);
+                    if (QUICKSTEP_SPRINGS.get() && child instanceof TaskView) {
+                        addAnim(new SpringObjectAnimator<>(
+                                new ViewProgressProperty(child, View.TRANSLATION_X),
+                                "taskViewTransX", SPRING_MIN_VISIBLE_CHANGE, SPRING_DAMPING_RATIO,
+                                SPRING_STIFFNESS, 0, scrollDiff), duration, ACCEL, anim);
+                    } else {
+                        addAnim(ObjectAnimator.ofFloat(child, TRANSLATION_X, scrollDiff), duration,
+                                ACCEL, anim);
+                    }
+
                     needsCurveUpdates = true;
                 }
             }
@@ -1094,7 +1117,7 @@ public abstract class RecentsView<T extends BaseActivity> extends PagedView impl
         return pendingAnimation;
     }
 
-    private static void addAnim(ObjectAnimator anim, long duration,
+    private static void addAnim(Animator anim, long duration,
             TimeInterpolator interpolator, AnimatorSet set) {
         anim.setDuration(duration).setInterpolator(interpolator);
         set.play(anim);
diff --git a/src/com/android/launcher3/LauncherAnimUtils.java b/src/com/android/launcher3/LauncherAnimUtils.java
index aad344976..04f2b5276 100644
--- a/src/com/android/launcher3/LauncherAnimUtils.java
+++ b/src/com/android/launcher3/LauncherAnimUtils.java
@@ -91,4 +91,24 @@ public class LauncherAnimUtils {
                     lp.height = height;
                 }
             };
+
+    public static class ViewProgressProperty implements ProgressInterface {
+        View mView;
+        Property<View, Float> mProperty;
+
+        public ViewProgressProperty(View view, Property<View, Float> property) {
+            mView = view;
+            mProperty = property;
+        }
+
+        @Override
+        public void setProgress(float progress) {
+            mProperty.set(mView, progress);
+        }
+
+        @Override
+        public float getProgress() {
+            return mProperty.get(mView);
+        }
+    }
 }
diff --git a/src/com/android/launcher3/allapps/AllAppsTransitionController.java b/src/com/android/launcher3/allapps/AllAppsTransitionController.java
index e8e93febb..bcb5eec61 100644
--- a/src/com/android/launcher3/allapps/AllAppsTransitionController.java
+++ b/src/com/android/launcher3/allapps/AllAppsTransitionController.java
@@ -47,6 +47,9 @@ import androidx.dynamicanimation.animation.FloatPropertyCompat;
 public class AllAppsTransitionController implements StateHandler, OnDeviceProfileChangeListener,
         ProgressInterface {
 
+    public static final float SPRING_DAMPING_RATIO = 0.9f;
+    public static final float SPRING_STIFFNESS = 600f;
+
     public static final Property<AllAppsTransitionController, Float> ALL_APPS_PROGRESS =
             new Property<AllAppsTransitionController, Float>(Float.class, "allAppsProgress") {
 
@@ -61,19 +64,6 @@ public class AllAppsTransitionController implements StateHandler, OnDeviceProfil
         }
     };
 
-    public static final FloatPropertyCompat<AllAppsTransitionController> ALL_APPS_PROGRESS_SPRING
-            = new FloatPropertyCompat<AllAppsTransitionController>("allAppsProgressSpring") {
-        @Override
-        public float getValue(AllAppsTransitionController controller) {
-            return controller.mProgress;
-        }
-
-        @Override
-        public void setValue(AllAppsTransitionController controller, float progress) {
-            controller.setProgress(progress);
-        }
-    };
-
     private AllAppsContainerView mAppsView;
     private ScrimView mScrimView;
 
@@ -191,8 +181,8 @@ public class AllAppsTransitionController implements StateHandler, OnDeviceProfil
         Interpolator interpolator = config.userControlled ? LINEAR : toState == OVERVIEW
                 ? builder.getInterpolator(ANIM_OVERVIEW_SCALE, FAST_OUT_SLOW_IN)
                 : FAST_OUT_SLOW_IN;
-        Animator anim = new SpringObjectAnimator<>(this, ALL_APPS_PROGRESS_SPRING,
-                "allAppsSpringFromAATC", 1f / mShiftRange, mProgress, targetProgress);
+        Animator anim = new SpringObjectAnimator<>(this, "allAppsSpringFromAATC", 1f / mShiftRange,
+                SPRING_DAMPING_RATIO, SPRING_STIFFNESS, mProgress, targetProgress);
         anim.setDuration(config.duration);
         anim.setInterpolator(builder.getInterpolator(ANIM_VERTICAL_PROGRESS, interpolator));
         anim.addListener(getProgressAnimatorListener());
diff --git a/src/com/android/launcher3/anim/SpringObjectAnimator.java b/src/com/android/launcher3/anim/SpringObjectAnimator.java
index e4aec107d..4f45c051b 100644
--- a/src/com/android/launcher3/anim/SpringObjectAnimator.java
+++ b/src/com/android/launcher3/anim/SpringObjectAnimator.java
@@ -55,17 +55,27 @@ public class SpringObjectAnimator<T extends ProgressInterface> extends ValueAnim
     private boolean mAnimatorEnded = false;
     private boolean mEnded = false;
 
-    private static final float SPRING_DAMPING_RATIO = 0.9f;
-    private static final float SPRING_STIFFNESS = 600f;
+    private static final FloatPropertyCompat<ProgressInterface> sFloatProperty =
+            new FloatPropertyCompat<ProgressInterface>("springObjectAnimator") {
+        @Override
+        public float getValue(ProgressInterface object) {
+            return object.getProgress();
+        }
+
+        @Override
+        public void setValue(ProgressInterface object, float progress) {
+            object.setProgress(progress);
+        }
+    };
 
-    public SpringObjectAnimator(T object, FloatPropertyCompat<T> floatProperty,
-            String name, float minimumVisibleChange, float... values) {
+    public SpringObjectAnimator(T object, String name, float minimumVisibleChange, float damping,
+            float stiffness, float... values) {
         mObject = object;
-        mSpring = new SpringAnimation(object, floatProperty);
+        mSpring = new SpringAnimation(object, sFloatProperty);
         mSpring.setMinimumVisibleChange(minimumVisibleChange);
         mSpring.setSpring(new SpringForce(0)
-                .setDampingRatio(SPRING_DAMPING_RATIO)
-                .setStiffness(SPRING_STIFFNESS));
+                .setDampingRatio(damping)
+                .setStiffness(stiffness));
         mSpring.setStartVelocity(0.01f);
         mProperty = new SpringProperty<T>(name, mSpring);
         mObjectAnimator = ObjectAnimator.ofFloat(object, mProperty, values);