Makes spring variable dynamic resources so that they can be changed via plugin

Bug: 147302669
Change-Id: Ia4e74ff46a4d8338a56ea75ed826b69102c42d93

src/com/android/launcher3/util/OverScroller.java

@@ -26,11 +26,13 @@ import android.view.ViewConfiguration;
 import android.view.animation.AnimationUtils;
 import android.view.animation.Interpolator;
 
-import androidx.dynamicanimation.animation.DynamicAnimation;
 import androidx.dynamicanimation.animation.FloatPropertyCompat;
 import androidx.dynamicanimation.animation.SpringAnimation;
 import androidx.dynamicanimation.animation.SpringForce;
 
+import com.android.launcher3.R;
+import com.android.systemui.plugins.ResourceProvider;
+
 /**
  * Based on {@link android.widget.OverScroller} supporting only 1-d scrolling and with more
  * customization options.
@@ -425,6 +427,7 @@ public class OverScroller {
         // Current state of the animation.
         private int mState = SPLINE;
 
+        private Context mContext;
         private SpringAnimation mSpring;
 
         // Constant gravity value, used in the deceleration phase.
@@ -500,6 +503,7 @@ public class OverScroller {
         }
 
         SplineOverScroller(Context context) {
+            mContext = context;
             mFinished = true;
             final float ppi = context.getResources().getDisplayMetrics().density * 160.0f;
             mPhysicalCoeff = SensorManager.GRAVITY_EARTH // g (m/s^2)
@@ -560,9 +564,12 @@ public class OverScroller {
                 }
                 mSpring = new SpringAnimation(this, SPRING_PROPERTY);
 
+                ResourceProvider rp = DynamicResource.provider(mContext);
+                float stiffness = rp.getFloat(R.dimen.horizontal_spring_stiffness);
+                float damping = rp.getFloat(R.dimen.horizontal_spring_damping_ratio);
                 mSpring.setSpring(new SpringForce(mFinal)
-                        .setStiffness(SpringForce.STIFFNESS_LOW)
-                        .setDampingRatio(SpringForce.DAMPING_RATIO_LOW_BOUNCY));
+                        .setStiffness(stiffness)
+                        .setDampingRatio(damping));
                 mSpring.setStartVelocity(velocity);
                 mSpring.animateToFinalPosition(mFinal);
                 mSpring.addEndListener((animation, canceled, value, velocity1) -> {