Slow down ripple background fade in from press (f92f26fe) · Commits · e / os / android_frameworks_base

graphics/java/android/graphics/drawable/RippleBackground.java

+10 −9

Original line number	Diff line number	Diff line
		@@ -43,10 +43,12 @@ class RippleBackground {
		private static final float WAVE_OPACITY_DECAY_VELOCITY = 3.0f / GLOBAL_SPEED;
		private static final float WAVE_OUTER_OPACITY_EXIT_VELOCITY_MAX = 4.5f * GLOBAL_SPEED;
		private static final float WAVE_OUTER_OPACITY_EXIT_VELOCITY_MIN = 1.5f * GLOBAL_SPEED;
		private static final float WAVE_OUTER_OPACITY_ENTER_VELOCITY = 10.0f * GLOBAL_SPEED;
		private static final float WAVE_OUTER_SIZE_INFLUENCE_MAX = 200f;
		private static final float WAVE_OUTER_SIZE_INFLUENCE_MIN = 40f;

		private static final int ENTER_DURATION = 667;
		private static final int ENTER_DURATION_FAST = 100;

		// Hardware animators.
		private final ArrayList<RenderNodeAnimator> mRunningAnimations =
		new ArrayList<RenderNodeAnimator>();
		@@ -224,21 +226,20 @@ class RippleBackground {
		/**
		* Starts the enter animation.
		*/
		public void enter() {
		public void enter(boolean fast) {
		cancel();

		final int outerDuration = (int) (1000 * 1.0f / WAVE_OUTER_OPACITY_ENTER_VELOCITY);
		final ObjectAnimator outer = ObjectAnimator.ofFloat(this, "outerOpacity", 0, 1);
		outer.setAutoCancel(true);
		outer.setDuration(outerDuration);
		outer.setInterpolator(LINEAR_INTERPOLATOR);
		final ObjectAnimator opacity = ObjectAnimator.ofFloat(this, "outerOpacity", 0, 1);
		opacity.setAutoCancel(true);
		opacity.setDuration(fast ? ENTER_DURATION_FAST : ENTER_DURATION);
		opacity.setInterpolator(LINEAR_INTERPOLATOR);

		mAnimOuterOpacity = outer;
		mAnimOuterOpacity = opacity;

		// Enter animations always run on the UI thread, since it's unlikely
		// that anything interesting is happening until the user lifts their
		// finger.
		outer.start();
		opacity.start();
		}

		/**

graphics/java/android/graphics/drawable/RippleDrawable.java

+9 −6

Original line number	Diff line number	Diff line
		@@ -280,7 +280,7 @@ public class RippleDrawable extends LayerDrawable {
		}

		setRippleActive(enabled && pressed);
		setBackgroundActive(focused \|\| (enabled && pressed));
		setBackgroundActive(focused \|\| (enabled && pressed), focused);

		return changed;
		}
		@@ -296,11 +296,11 @@ public class RippleDrawable extends LayerDrawable {
		}
		}

		private void setBackgroundActive(boolean active) {
		private void setBackgroundActive(boolean active, boolean focused) {
		if (mBackgroundActive != active) {
		mBackgroundActive = active;
		if (active) {
		tryBackgroundEnter();
		tryBackgroundEnter(focused);
		} else {
		tryBackgroundExit();
		}
		@@ -333,8 +333,11 @@ public class RippleDrawable extends LayerDrawable {
		}

		if (mBackgroundActive) {
		tryBackgroundEnter();
		tryBackgroundEnter(false);
		}

		// Skip animations, just show the correct final states.
		jumpToCurrentState();
		}

		return changed;
		@@ -489,14 +492,14 @@ public class RippleDrawable extends LayerDrawable {
		/**
		* Creates an active hotspot at the specified location.
		*/
		private void tryBackgroundEnter() {
		private void tryBackgroundEnter(boolean focused) {
		if (mBackground == null) {
		mBackground = new RippleBackground(this, mHotspotBounds);
		}

		final int color = mState.mColor.getColorForState(getState(), Color.TRANSPARENT);
		mBackground.setup(mState.mMaxRadius, color, mDensity);
		mBackground.enter();
		mBackground.enter(focused);
		}

		private void tryBackgroundExit() {