ExpandHelper and ExpandHelperTest now use AndroidX / AnimatorTestRule

WMShell.FlingAnimationUtils now supports the AndroidX Animator

Bug: 291636627
Test: atest ExpandHelperTest
Change-Id: I7637eeeb5f5a6b11b71683bd3bbe1fad1ca186c3
diff --git a/libs/WindowManager/Shell/Android.bp b/libs/WindowManager/Shell/Android.bp
index 7159893..603272e 100644
--- a/libs/WindowManager/Shell/Android.bp
+++ b/libs/WindowManager/Shell/Android.bp
@@ -151,6 +151,7 @@
     ],
     static_libs: [
         "androidx.appcompat_appcompat",
+        "androidx.core_core-animation",
         "androidx.arch.core_core-runtime",
         "androidx-constraintlayout_constraintlayout",
         "androidx.dynamicanimation_dynamicanimation",
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/animation/FlingAnimationUtils.java b/libs/WindowManager/Shell/src/com/android/wm/shell/animation/FlingAnimationUtils.java
index 798250d..26edd7d 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/animation/FlingAnimationUtils.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/animation/FlingAnimationUtils.java
@@ -117,6 +117,20 @@
      * @param endValue  the end value of the animator
      * @param velocity  the current velocity of the motion
      */
+    public void apply(androidx.core.animation.Animator animator,
+            float currValue, float endValue, float velocity) {
+        apply(animator, currValue, endValue, velocity, Math.abs(endValue - currValue));
+    }
+
+    /**
+     * Applies the interpolator and length to the animator, such that the fling animation is
+     * consistent with the finger motion.
+     *
+     * @param animator  the animator to apply
+     * @param currValue the current value
+     * @param endValue  the end value of the animator
+     * @param velocity  the current velocity of the motion
+     */
     public void apply(ViewPropertyAnimator animator, float currValue, float endValue,
             float velocity) {
         apply(animator, currValue, endValue, velocity, Math.abs(endValue - currValue));
@@ -152,6 +166,24 @@
      * @param maxDistance the maximum distance for this interaction; the maximum animation length
      *                    gets multiplied by the ratio between the actual distance and this value
      */
+    public void apply(androidx.core.animation.Animator animator,
+            float currValue, float endValue, float velocity, float maxDistance) {
+        AnimatorProperties properties = getProperties(currValue, endValue, velocity, maxDistance);
+        animator.setDuration(properties.mDuration);
+        animator.setInterpolator(properties.getInterpolator());
+    }
+
+    /**
+     * Applies the interpolator and length to the animator, such that the fling animation is
+     * consistent with the finger motion.
+     *
+     * @param animator    the animator to apply
+     * @param currValue   the current value
+     * @param endValue    the end value of the animator
+     * @param velocity    the current velocity of the motion
+     * @param maxDistance the maximum distance for this interaction; the maximum animation length
+     *                    gets multiplied by the ratio between the actual distance and this value
+     */
     public void apply(ViewPropertyAnimator animator, float currValue, float endValue,
             float velocity, float maxDistance) {
         AnimatorProperties properties = getProperties(currValue, endValue, velocity,
@@ -367,6 +399,11 @@
     private static class AnimatorProperties {
         Interpolator mInterpolator;
         long mDuration;
+
+        /** Get an AndroidX interpolator wrapper of the current mInterpolator */
+        public androidx.core.animation.Interpolator getInterpolator() {
+            return mInterpolator::getInterpolation;
+        }
     }
 
     /** Builder for {@link #FlingAnimationUtils}. */
diff --git a/packages/SystemUI/src/com/android/systemui/ExpandHelper.java b/packages/SystemUI/src/com/android/systemui/ExpandHelper.java
index f00615b..7c377d2 100644
--- a/packages/SystemUI/src/com/android/systemui/ExpandHelper.java
+++ b/packages/SystemUI/src/com/android/systemui/ExpandHelper.java
@@ -19,9 +19,6 @@
 
 import static com.android.internal.jank.InteractionJankMonitor.CUJ_NOTIFICATION_SHADE_ROW_EXPAND;
 
-import android.animation.Animator;
-import android.animation.AnimatorListenerAdapter;
-import android.animation.ObjectAnimator;
 import android.content.Context;
 import android.util.FloatProperty;
 import android.util.Log;
@@ -34,6 +31,11 @@
 import android.view.View;
 import android.view.ViewConfiguration;
 
+import androidx.annotation.NonNull;
+import androidx.core.animation.Animator;
+import androidx.core.animation.AnimatorListenerAdapter;
+import androidx.core.animation.ObjectAnimator;
+
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.jank.InteractionJankMonitor;
 import com.android.systemui.statusbar.notification.row.ExpandableNotificationRow;
@@ -616,7 +618,7 @@
                 public boolean mCancelled;
 
                 @Override
-                public void onAnimationEnd(Animator animation) {
+                public void onAnimationEnd(@NonNull Animator animation) {
                     if (!mCancelled) {
                         mCallback.setUserExpandedChild(scaledView, expand);
                         if (!mExpanding) {
@@ -633,7 +635,7 @@
                 }
 
                 @Override
-                public void onAnimationCancel(Animator animation) {
+                public void onAnimationCancel(@NonNull Animator animation) {
                     mCancelled = true;
                 }
             });
diff --git a/packages/SystemUI/tests/src/com/android/systemui/ExpandHelperTest.java b/packages/SystemUI/tests/src/com/android/systemui/ExpandHelperTest.java
index 5867a40c..44a2b68 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/ExpandHelperTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/ExpandHelperTest.java
@@ -20,12 +20,13 @@
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
 
-import android.animation.ObjectAnimator;
 import android.content.Context;
 import android.testing.AndroidTestingRunner;
 import android.testing.TestableLooper;
 import android.testing.TestableLooper.RunWithLooper;
 
+import androidx.core.animation.AnimatorTestRule;
+import androidx.core.animation.ObjectAnimator;
 import androidx.test.annotation.UiThreadTest;
 import androidx.test.filters.SmallTest;
 
@@ -37,6 +38,7 @@
 import com.android.systemui.statusbar.notification.row.NotificationTestHelper;
 
 import org.junit.Before;
+import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
@@ -45,6 +47,9 @@
 @RunWithLooper
 public class ExpandHelperTest extends SysuiTestCase {
 
+    @Rule
+    public final AnimatorTestRule mAnimatorTestRule = new AnimatorTestRule();
+
     private final FakeFeatureFlags mFeatureFlags = new FakeFeatureFlags();
     private ExpandableNotificationRow mRow;
     private ExpandHelper mExpandHelper;