Adds new motion animation for U popups am: 6259084496 am: 2010ea7b27

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/21338099

Change-Id: I1516ae6ba070c2736971b333fedfb0220f3c0bdb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

1 files changed, 106 insertions, 3 deletions

diff --git a/src/com/android/launcher3/popup/ArrowPopup.java b/src/com/android/launcher3/popup/ArrowPopup.java
index c23ea8aa4f..a0f21dc297 100644
--- a/src/com/android/launcher3/popup/ArrowPopup.java
+++ b/src/com/android/launcher3/popup/ArrowPopup.java
@@ -20,6 +20,8 @@ import static androidx.core.content.ContextCompat.getColorStateList;
 
 import static com.android.launcher3.anim.Interpolators.ACCELERATED_EASE;
 import static com.android.launcher3.anim.Interpolators.DECELERATED_EASE;
+import static com.android.launcher3.anim.Interpolators.EMPHASIZED_ACCELERATE;
+import static com.android.launcher3.anim.Interpolators.EMPHASIZED_DECELERATE;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.launcher3.config.FeatureFlags.ENABLE_MATERIAL_U_POPUP;
 
@@ -37,11 +39,13 @@ import android.graphics.drawable.Drawable;
 import android.graphics.drawable.GradientDrawable;
 import android.util.AttributeSet;
 import android.util.Pair;
+import android.util.Property;
 import android.view.Gravity;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.animation.Interpolator;
+import android.view.animation.PathInterpolator;
 import android.widget.FrameLayout;
 
 import androidx.annotation.Nullable;
@@ -81,6 +85,19 @@ public abstract class ArrowPopup<T extends Context & ActivityContext>
     protected int CLOSE_CHILD_FADE_START_DELAY = 0;
     protected int CLOSE_CHILD_FADE_DURATION = 140;
 
+    private static final int OPEN_DURATION_U = 200;
+    private static final int OPEN_FADE_START_DELAY_U = 0;
+    private static final int OPEN_FADE_DURATION_U = 83;
+    private static final int OPEN_CHILD_FADE_START_DELAY_U = 0;
+    private static final int OPEN_CHILD_FADE_DURATION_U = 83;
+    private static final int OPEN_OVERSHOOT_DURATION_U = 200;
+
+    private static final int CLOSE_DURATION_U  = 233;
+    private static final int CLOSE_FADE_START_DELAY_U = 150;
+    private static final int CLOSE_FADE_DURATION_U = 83;
+    private static final int CLOSE_CHILD_FADE_START_DELAY_U = 150;
+    private static final int CLOSE_CHILD_FADE_DURATION_U = 83;
+
     protected final Rect mTempRect = new Rect();
 
     protected final LayoutInflater mInflater;
@@ -104,6 +121,7 @@ public abstract class ArrowPopup<T extends Context & ActivityContext>
     protected AnimatorSet mOpenCloseAnimator;
     protected boolean mDeferContainerRemoval;
     protected boolean shouldScaleArrow = false;
+    protected boolean mIsArrowRotated = false;
 
     private final GradientDrawable mRoundedTop;
     private final GradientDrawable mRoundedBottom;
@@ -591,10 +609,24 @@ public abstract class ArrowPopup<T extends Context & ActivityContext>
 
     protected void animateOpen() {
         setVisibility(View.VISIBLE);
+        mOpenCloseAnimator = ENABLE_MATERIAL_U_POPUP.get()
+                ? getMaterialUOpenCloseAnimator(
+                        true,
+                        OPEN_DURATION_U,
+                        OPEN_FADE_START_DELAY_U,
+                        OPEN_FADE_DURATION_U,
+                        OPEN_CHILD_FADE_START_DELAY_U,
+                        OPEN_CHILD_FADE_DURATION_U,
+                        EMPHASIZED_DECELERATE)
+                : getOpenCloseAnimator(
+                        true,
+                        OPEN_DURATION,
+                        OPEN_FADE_START_DELAY,
+                        OPEN_FADE_DURATION,
+                        OPEN_CHILD_FADE_START_DELAY,
+                        OPEN_CHILD_FADE_DURATION,
+                        DECELERATED_EASE);
 
-        mOpenCloseAnimator = getOpenCloseAnimator(true, OPEN_DURATION, OPEN_FADE_START_DELAY,
-                OPEN_FADE_DURATION, OPEN_CHILD_FADE_START_DELAY, OPEN_CHILD_FADE_DURATION,
-                DECELERATED_EASE);
         onCreateOpenAnimation(mOpenCloseAnimator);
         mOpenCloseAnimator.addListener(new AnimatorListenerAdapter() {
             @Override
@@ -680,6 +712,24 @@ public abstract class ArrowPopup<T extends Context & ActivityContext>
         mOpenCloseAnimator = getOpenCloseAnimator(false, CLOSE_DURATION, CLOSE_FADE_START_DELAY,
                 CLOSE_FADE_DURATION, CLOSE_CHILD_FADE_START_DELAY, CLOSE_CHILD_FADE_DURATION,
                 ACCELERATED_EASE);
+
+        mOpenCloseAnimator = ENABLE_MATERIAL_U_POPUP.get()
+                ? getMaterialUOpenCloseAnimator(
+                        false,
+                        CLOSE_DURATION_U,
+                        CLOSE_FADE_START_DELAY_U,
+                        CLOSE_FADE_DURATION_U,
+                        CLOSE_CHILD_FADE_START_DELAY_U,
+                        CLOSE_CHILD_FADE_DURATION_U,
+                        EMPHASIZED_ACCELERATE)
+                : getOpenCloseAnimator(false,
+                        CLOSE_DURATION,
+                        CLOSE_FADE_START_DELAY,
+                        CLOSE_FADE_DURATION,
+                        CLOSE_CHILD_FADE_START_DELAY,
+                        CLOSE_CHILD_FADE_DURATION,
+                        ACCELERATED_EASE);
+
         onCreateCloseAnimation(mOpenCloseAnimator);
         mOpenCloseAnimator.addListener(new AnimatorListenerAdapter() {
             @Override
@@ -695,6 +745,59 @@ public abstract class ArrowPopup<T extends Context & ActivityContext>
         mOpenCloseAnimator.start();
     }
 
+    protected AnimatorSet getMaterialUOpenCloseAnimator(boolean isOpening, int scaleDuration,
+            int fadeStartDelay, int fadeDuration, int childFadeStartDelay, int childFadeDuration,
+            Interpolator interpolator) {
+
+        int arrowCenter = mArrowOffsetHorizontal + mArrowWidth / 2;
+        if (mIsArrowRotated) {
+            setPivotX(mIsLeftAligned ? 0f : getMeasuredWidth());
+            setPivotY(arrowCenter);
+        } else {
+            setPivotX(mIsLeftAligned ? arrowCenter : getMeasuredWidth() - arrowCenter);
+            setPivotY(mIsAboveIcon ? getMeasuredHeight() : 0f);
+        }
+
+        float[] alphaValues = isOpening ? new float[] {0, 1} : new float[] {1, 0};
+        float[] scaleValues = isOpening ? new float[] {0.5f, 1.02f} : new float[] {1f, 0.5f};
+        Animator alpha = getAnimatorOfFloat(this, View.ALPHA, fadeDuration, fadeStartDelay,
+                LINEAR, alphaValues);
+        Animator arrowAlpha = getAnimatorOfFloat(mArrow, View.ALPHA, fadeDuration, fadeStartDelay,
+                LINEAR, alphaValues);
+        Animator scaleY = getAnimatorOfFloat(this, View.SCALE_Y, scaleDuration, 0, interpolator,
+                scaleValues);
+        Animator scaleX = getAnimatorOfFloat(this, View.SCALE_X, scaleDuration, 0, interpolator,
+                scaleValues);
+
+        final AnimatorSet animatorSet = new AnimatorSet();
+        if (isOpening) {
+            float[] scaleValuesOvershoot = new float[] {1.02f, 1f};
+            PathInterpolator overshootInterpolator = new PathInterpolator(0.3f, 0, 0.33f, 1f);
+            Animator overshootY = getAnimatorOfFloat(this, View.SCALE_Y,
+                    OPEN_OVERSHOOT_DURATION_U, scaleDuration, overshootInterpolator,
+                    scaleValuesOvershoot);
+            Animator overshootX = getAnimatorOfFloat(this, View.SCALE_X,
+                    OPEN_OVERSHOOT_DURATION_U, scaleDuration, overshootInterpolator,
+                    scaleValuesOvershoot);
+
+            animatorSet.playTogether(alpha, arrowAlpha, scaleY, scaleX, overshootX, overshootY);
+        } else {
+            animatorSet.playTogether(alpha, arrowAlpha, scaleY, scaleX);
+        }
+
+        fadeInChildViews(this, alphaValues, childFadeStartDelay, childFadeDuration, animatorSet);
+        return animatorSet;
+    }
+
+    private Animator getAnimatorOfFloat(View view, Property<View, Float> property,
+            int duration, int startDelay, Interpolator interpolator,  float... values) {
+        Animator animator = ObjectAnimator.ofFloat(view, property, values);
+        animator.setDuration(duration);
+        animator.setInterpolator(interpolator);
+        animator.setStartDelay(startDelay);
+        return animator;
+    }
+
     /**
      * Called when creating the open transition allowing subclass can add additional animations.
      */