diff options
Diffstat (limited to 'src/com/android/launcher3/DragView.java')
-rw-r--r-- | src/com/android/launcher3/DragView.java | 61 |
1 files changed, 55 insertions, 6 deletions
diff --git a/src/com/android/launcher3/DragView.java b/src/com/android/launcher3/DragView.java index b1a6266cc..a4b6704ac 100644 --- a/src/com/android/launcher3/DragView.java +++ b/src/com/android/launcher3/DragView.java @@ -16,22 +16,30 @@ package com.android.launcher3; +import android.animation.FloatArrayEvaluator; import android.animation.ValueAnimator; import android.animation.ValueAnimator.AnimatorUpdateListener; +import android.annotation.TargetApi; import android.content.res.Resources; import android.graphics.Bitmap; import android.graphics.Canvas; +import android.graphics.Color; +import android.graphics.ColorMatrix; +import android.graphics.ColorMatrixColorFilter; import android.graphics.Paint; import android.graphics.Point; -import android.graphics.PorterDuff; -import android.graphics.PorterDuffColorFilter; import android.graphics.Rect; +import android.os.Build; import android.view.View; import android.view.animation.DecelerateInterpolator; import com.android.launcher3.util.Thunk; +import java.util.Arrays; + public class DragView extends View { + public static int COLOR_CHANGE_DURATION = 200; + @Thunk static float sDragAlpha = 1f; private Bitmap mBitmap; @@ -54,6 +62,9 @@ public class DragView extends View { // size. This is ignored for non-icons. private float mIntrinsicIconScale = 1f; + private float[] mCurrentFilter; + private ValueAnimator mFilterAnimator; + /** * Construct the drag view. * <p> @@ -229,11 +240,50 @@ public class DragView extends View { mPaint = new Paint(Paint.FILTER_BITMAP_FLAG); } if (color != 0) { - mPaint.setColorFilter(new PorterDuffColorFilter(color, PorterDuff.Mode.SRC_ATOP)); + ColorMatrix m1 = new ColorMatrix(); + m1.setSaturation(0); + + ColorMatrix m2 = new ColorMatrix(); + m2.setScale(Color.red(color) / 255f, Color.green(color) / 255f, + Color.blue(color) / 255f, Color.alpha(color) / 255f); + m1.postConcat(m2); + + if (Utilities.isLmpOrAbove()) { + animateFilterTo(m1.getArray()); + } else { + mPaint.setColorFilter(new ColorMatrixColorFilter(m1)); + invalidate(); + } } else { - mPaint.setColorFilter(null); + if (!Utilities.isLmpOrAbove() || mCurrentFilter == null) { + mPaint.setColorFilter(null); + invalidate(); + } else { + animateFilterTo(new ColorMatrix().getArray()); + } } - invalidate(); + } + + @TargetApi(Build.VERSION_CODES.LOLLIPOP) + private void animateFilterTo(float[] targetFilter) { + float[] oldFilter = mCurrentFilter == null ? new ColorMatrix().getArray() : mCurrentFilter; + mCurrentFilter = Arrays.copyOf(oldFilter, oldFilter.length); + + if (mFilterAnimator != null) { + mFilterAnimator.cancel(); + } + mFilterAnimator = ValueAnimator.ofObject(new FloatArrayEvaluator(mCurrentFilter), + oldFilter, targetFilter); + mFilterAnimator.setDuration(COLOR_CHANGE_DURATION); + mFilterAnimator.addUpdateListener(new AnimatorUpdateListener() { + + @Override + public void onAnimationUpdate(ValueAnimator animation) { + mPaint.setColorFilter(new ColorMatrixColorFilter(mCurrentFilter)); + invalidate(); + } + }); + mFilterAnimator.start(); } public boolean hasDrawn() { @@ -301,4 +351,3 @@ public class DragView extends View { } } } - |