Sunny Goyal
a2454ad2d8
> The shortcut container closes with an animation > When opening/closing the animation only the icon scales and not the title and drag handle > When dragging the icon, it starts from the original icon position and moves under the user finger. The container grows to follow the drag view. Bug: 28980830 Change-Id: Ic0353c30b682d1f018cbf4d62e8a6e8e7d7d4664
78 lines
2.7 KiB
Java
78 lines
2.7 KiB
Java
package com.android.launcher3.util;
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import android.animation.Animator;
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import android.animation.AnimatorListenerAdapter;
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import android.animation.ValueAnimator;
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import android.graphics.Outline;
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import android.graphics.Rect;
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import android.view.View;
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import android.view.ViewOutlineProvider;
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import com.android.launcher3.Utilities;
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/**
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* A {@link ViewOutlineProvider} that has helper functions to create reveal animations.
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* This class should be extended so that subclasses can define the reveal shape as the
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* animation progresses from 0 to 1.
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*/
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public abstract class RevealOutlineAnimation extends ViewOutlineProvider {
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protected Rect mOutline;
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protected float mOutlineRadius;
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public RevealOutlineAnimation() {
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mOutline = new Rect();
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}
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/** Returns whether elevation should be removed for the duration of the reveal animation. */
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abstract boolean shouldRemoveElevationDuringAnimation();
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/** Sets the progress, from 0 to 1, of the reveal animation. */
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abstract void setProgress(float progress);
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public ValueAnimator createRevealAnimator(final View revealView) {
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return createRevealAnimator(revealView, false);
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}
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public ValueAnimator createRevealAnimator(final View revealView, boolean isReversed) {
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ValueAnimator va =
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isReversed ? ValueAnimator.ofFloat(1f, 0f) : ValueAnimator.ofFloat(0f, 1f);
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final float elevation = revealView.getElevation();
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va.addListener(new AnimatorListenerAdapter() {
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public void onAnimationStart(Animator animation) {
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revealView.setOutlineProvider(RevealOutlineAnimation.this);
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revealView.setClipToOutline(true);
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if (shouldRemoveElevationDuringAnimation()) {
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revealView.setTranslationZ(-elevation);
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}
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}
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public void onAnimationEnd(Animator animation) {
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revealView.setOutlineProvider(ViewOutlineProvider.BACKGROUND);
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revealView.setClipToOutline(false);
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if (shouldRemoveElevationDuringAnimation()) {
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revealView.setTranslationZ(0);
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}
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}
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});
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va.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
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@Override
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public void onAnimationUpdate(ValueAnimator arg0) {
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float progress = (Float) arg0.getAnimatedValue();
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setProgress(progress);
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revealView.invalidateOutline();
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if (!Utilities.ATLEAST_LOLLIPOP_MR1) {
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revealView.invalidate();
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}
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}
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});
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return va;
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}
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@Override
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public void getOutline(View v, Outline outline) {
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outline.setRoundRect(mOutline, mOutlineRadius);
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}
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}
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