diff --git a/packages/SystemUI/src/com/android/systemui/ScreenDecorations.java b/packages/SystemUI/src/com/android/systemui/ScreenDecorations.java index b7bb4d9b787ff..305558fd9efab 100644 --- a/packages/SystemUI/src/com/android/systemui/ScreenDecorations.java +++ b/packages/SystemUI/src/com/android/systemui/ScreenDecorations.java @@ -25,6 +25,9 @@ import static android.view.WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_M import static com.android.systemui.tuner.TunablePadding.FLAG_END; import static com.android.systemui.tuner.TunablePadding.FLAG_START; +import android.animation.Animator; +import android.animation.AnimatorSet; +import android.animation.ObjectAnimator; import android.annotation.Dimension; import android.app.ActivityManager; import android.app.Fragment; @@ -49,6 +52,7 @@ import android.os.SystemProperties; import android.provider.Settings.Secure; import android.util.DisplayMetrics; import android.util.Log; +import android.util.MathUtils; import android.view.DisplayCutout; import android.view.DisplayInfo; import android.view.Gravity; @@ -60,12 +64,8 @@ import android.view.ViewGroup; import android.view.ViewGroup.LayoutParams; import android.view.ViewTreeObserver; import android.view.WindowManager; -import android.view.animation.Animation; -import android.view.animation.AnimationSet; -import android.view.animation.OvershootInterpolator; +import android.view.animation.Interpolator; import android.view.animation.PathInterpolator; -import android.view.animation.ScaleAnimation; -import android.view.animation.TranslateAnimation; import android.widget.FrameLayout; import android.widget.ImageView; @@ -176,29 +176,59 @@ public class ScreenDecorations extends SystemUI implements Tunable, } } + /** + * Returns an animator that animates the given view from start to end over durationMs. Start and + * end represent total animation progress: 0 is the start, 1 is the end, 1.1 would be an + * overshoot. + */ + Animator getHandleAnimator(View view, float start, float end, boolean isLeft, long durationMs, + Interpolator interpolator) { + // Note that lerp does allow overshoot, in cases where start and end are outside of [0,1]. + float scaleStart = MathUtils.lerp(2f, 1f, start); + float scaleEnd = MathUtils.lerp(2f, 1f, end); + Animator scaleX = ObjectAnimator.ofFloat(view, View.SCALE_X, scaleStart, scaleEnd); + Animator scaleY = ObjectAnimator.ofFloat(view, View.SCALE_Y, scaleStart, scaleEnd); + float translationStart = MathUtils.lerp(0.2f, 0f, start); + float translationEnd = MathUtils.lerp(0.2f, 0f, end); + int xDirection = isLeft ? -1 : 1; + Animator translateX = ObjectAnimator.ofFloat(view, View.TRANSLATION_X, + xDirection * translationStart * view.getWidth(), + xDirection * translationEnd * view.getWidth()); + Animator translateY = ObjectAnimator.ofFloat(view, View.TRANSLATION_Y, + translationStart * view.getHeight(), translationEnd * view.getHeight()); + + AnimatorSet set = new AnimatorSet(); + set.play(scaleX).with(scaleY); + set.play(scaleX).with(translateX); + set.play(scaleX).with(translateY); + set.setDuration(durationMs); + set.setInterpolator(interpolator); + return set; + } + private void fade(View view, boolean fadeIn, boolean isLeft) { if (fadeIn) { view.animate().cancel(); view.setAlpha(1f); view.setVisibility(View.VISIBLE); - AnimationSet anim = new AnimationSet(true); - anim.setDuration(900); - - Animation scaleAnimation = new ScaleAnimation(2f, 1f, 2f, 1f, - ScaleAnimation.RELATIVE_TO_SELF, 0.5f, ScaleAnimation.RELATIVE_TO_SELF, 0.5f); - anim.addAnimation(scaleAnimation); - anim.setInterpolator(new PathInterpolator(0.02f, 0.44f, 0.67f, 1.00f)); - - Animation translateAnimation = new TranslateAnimation( - TranslateAnimation.RELATIVE_TO_SELF, isLeft ? -0.2f : 0.2f, - TranslateAnimation.RELATIVE_TO_SELF, - 0f, - TranslateAnimation.RELATIVE_TO_SELF, 0.2f, TranslateAnimation.RELATIVE_TO_SELF, - 0f); - anim.addAnimation(translateAnimation); - anim.setInterpolator(new OvershootInterpolator()); - view.startAnimation(anim); + // A piecewise spring-like interpolation. + // End value in one animator call must match the start value in the next, otherwise + // there will be a discontinuity. + AnimatorSet anim = new AnimatorSet(); + Animator first = getHandleAnimator(view, 0, 1.1f, isLeft, 750, + new PathInterpolator(0, 0.45f, .67f, 1f)); + Interpolator secondInterpolator = new PathInterpolator(0.33f, 0, 0.67f, 1f); + Animator second = getHandleAnimator(view, 1.1f, 0.97f, isLeft, 400, + secondInterpolator); + Animator third = getHandleAnimator(view, 0.97f, 1.02f, isLeft, 400, + secondInterpolator); + Animator fourth = getHandleAnimator(view, 1.02f, 1f, isLeft, 400, + secondInterpolator); + anim.play(first).before(second); + anim.play(second).before(third); + anim.play(third).before(fourth); + anim.start(); } else { view.animate().cancel(); view.animate().setDuration(400).alpha(0f);