commit e4f0b2ee23ff5f672a61b9d23d552e6b38134dc8
author Jon Miranda <jonmiranda@google.com> Mon May 01 22:05:16 2017 +0000
committer android-build-merger <android-build-merger@google.com> Mon May 01 22:05:16 2017 +0000
tree 8ea739e1b7ccb128442bf7e52f643e1abaeaf813
parent 5500d54ea727fb3d644a87d1e589e8013b148c78
parent bdb5424fae0efb7bd2c4d148dffac5aa9ee7fc90

Fade in the FolderIcon stroke after Folder animates closed.
am: bdb5424fae

Change-Id: Id150f61ab5ab77c039d92b036c0abe5c9f692d5b

src/com/android/launcher3/folder/Folder.java

diff --git a/src/com/android/launcher3/folder/Folder.java b/src/com/android/launcher3/folder/Folder.java
index cc769e4..c6bf3a1 100644
--- a/src/com/android/launcher3/folder/Folder.java
+++ b/src/com/android/launcher3/folder/Folder.java
@@ -787,6 +787,7 @@
         if (mFolderIcon != null) {
             mFolderIcon.setVisibility(View.VISIBLE);
             if (wasAnimated) {
+                mFolderIcon.mBackground.animateBackgroundStroke();
                 mFolderIcon.requestFocus();
             }
         }

src/com/android/launcher3/folder/FolderIcon.java

diff --git a/src/com/android/launcher3/folder/FolderIcon.java b/src/com/android/launcher3/folder/FolderIcon.java
index 47db70c..6e3db0b 100644
--- a/src/com/android/launcher3/folder/FolderIcon.java
+++ b/src/com/android/launcher3/folder/FolderIcon.java
@@ -547,6 +547,7 @@
         private float mScale = 1f;
         private float mColorMultiplier = 1f;
         private float mStrokeWidth;
+        private int mStrokeAlpha = MAX_BG_OPACITY;
         private View mInvalidateDelegate;
 
         public int previewSize;
@@ -572,6 +573,21 @@
         private static final int SHADOW_OPACITY = 40;
 
         ValueAnimator mScaleAnimator;
+        ObjectAnimator mStrokeAlphaAnimator;
+
+        private static final Property<PreviewBackground, Integer> STROKE_ALPHA =
+                new Property<PreviewBackground, Integer>(Integer.class, "strokeAlpha") {
+                    @Override
+                    public Integer get(PreviewBackground previewBackground) {
+                        return previewBackground.mStrokeAlpha;
+                    }
+
+                    @Override
+                    public void set(PreviewBackground previewBackground, Integer alpha) {
+                        previewBackground.mStrokeAlpha = alpha;
+                        previewBackground.invalidate();
+                    }
+                };
 
         public void setup(DisplayMetrics dm, DeviceProfile grid, View invalidateDelegate,
                    int availableSpace, int topPadding) {
@@ -681,8 +697,24 @@
             canvas.restoreToCount(saveCount);
         }
 
+        public void animateBackgroundStroke() {
+            if (mStrokeAlphaAnimator != null) {
+                mStrokeAlphaAnimator.cancel();
+            }
+            mStrokeAlphaAnimator = ObjectAnimator
+                    .ofArgb(this, STROKE_ALPHA, MAX_BG_OPACITY / 2, MAX_BG_OPACITY)
+                    .setDuration(100);
+            mStrokeAlphaAnimator.addListener(new AnimatorListenerAdapter() {
+                @Override
+                public void onAnimationEnd(Animator animation) {
+                    mStrokeAlphaAnimator = null;
+                }
+            });
+            mStrokeAlphaAnimator.start();
+        }
+
         public void drawBackgroundStroke(Canvas canvas) {
-            mPaint.setColor(Color.argb(255, BG_INTENSITY, BG_INTENSITY, BG_INTENSITY));
+            mPaint.setColor(Color.argb(mStrokeAlpha, BG_INTENSITY, BG_INTENSITY, BG_INTENSITY));
             mPaint.setStyle(Paint.Style.STROKE);
             mPaint.setStrokeWidth(mStrokeWidth);
             drawCircle(canvas, 1 /* deltaRadius */);