diff options
Diffstat (limited to 'src/com/android/launcher3/util/UiThreadCircularReveal.java')
-rw-r--r-- | src/com/android/launcher3/util/UiThreadCircularReveal.java | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/com/android/launcher3/util/UiThreadCircularReveal.java b/src/com/android/launcher3/util/UiThreadCircularReveal.java new file mode 100644 index 000000000..c7324fb1b --- /dev/null +++ b/src/com/android/launcher3/util/UiThreadCircularReveal.java @@ -0,0 +1,55 @@ +package com.android.launcher3.util; + +import android.animation.Animator; +import android.animation.AnimatorListenerAdapter; +import android.animation.ValueAnimator; +import android.animation.ValueAnimator.AnimatorUpdateListener; +import android.annotation.TargetApi; +import android.os.Build; +import android.view.View; +import android.view.ViewOutlineProvider; + +import com.android.launcher3.Utilities; + +@TargetApi(Build.VERSION_CODES.LOLLIPOP) +public class UiThreadCircularReveal { + + public static ValueAnimator createCircularReveal(View v, int x, int y, float r0, float r1) { + ValueAnimator va = ValueAnimator.ofFloat(0f, 1f); + + final View revealView = v; + final RevealOutlineProvider outlineProvider = new RevealOutlineProvider(x, y, r0, r1); + final ViewOutlineProvider originalProvider = revealView.getOutlineProvider(); + final float elevation = v.getElevation(); + + va.addListener(new AnimatorListenerAdapter() { + public void onAnimationStart(Animator animation) { + revealView.setOutlineProvider(outlineProvider); + revealView.setClipToOutline(true); + revealView.setTranslationZ(-elevation); + } + + public void onAnimationEnd(Animator animation) { + revealView.setOutlineProvider(originalProvider); + revealView.setClipToOutline(false); + revealView.setTranslationZ(0); + } + + }); + + va.addUpdateListener(new AnimatorUpdateListener() { + @Override + public void onAnimationUpdate(ValueAnimator arg0) { + float progress = arg0.getAnimatedFraction(); + outlineProvider.setProgress(progress); + if (Utilities.isLmpMR1OrAbove()) { + revealView.invalidateOutline(); + } else { + // On L, a bug requires calling a full view invalidate. + revealView.invalidate(); + } + } + }); + return va; + } +} |