Unifying and maintaining the text-alpha and text visibility property

Bug: 76228194
Change-Id: I70be5f9fd22c53864a9a0308f256baa7dc1f3ab7

src/com/android/launcher3/BubbleTextView.java

@@ -65,27 +65,6 @@ public class BubbleTextView extends TextView implements ItemInfoUpdateReceiver,
 
     private static final int[] STATE_PRESSED = new int[] {android.R.attr.state_pressed};
 
-    private final BaseDraggingActivity mActivity;
-    private Drawable mIcon;
-    private final boolean mCenterVertically;
-
-    private final CheckLongPressHelper mLongPressHelper;
-    private final StylusEventHelper mStylusEventHelper;
-    private final float mSlop;
-
-    private final boolean mLayoutHorizontal;
-    private final int mIconSize;
-    @ViewDebug.ExportedProperty(category = "launcher")
-    private int mTextColor;
-    private boolean mIsIconVisible = true;
-
-    private BadgeInfo mBadgeInfo;
-    private BadgeRenderer mBadgeRenderer;
-    private int mBadgeColor;
-    private float mBadgeScale;
-    private boolean mForceHideBadge;
-    private Point mTempSpaceForBadgeOffset = new Point();
-    private Rect mTempIconBounds = new Rect();
 
     private static final Property<BubbleTextView, Float> BADGE_SCALE_PROPERTY
             = new Property<BubbleTextView, Float>(Float.TYPE, "badgeScale") {
@@ -101,19 +80,45 @@ public class BubbleTextView extends TextView implements ItemInfoUpdateReceiver,
         }
     };
 
-    public static final Property<BubbleTextView, Integer> TEXT_ALPHA_PROPERTY
+    public static final Property<BubbleTextView, Float> TEXT_ALPHA_PROPERTY
-            = new Property<BubbleTextView, Integer>(Integer.class, "textAlpha") {
+            = new Property<BubbleTextView, Float>(Float.class, "textAlpha") {
         @Override
-        public Integer get(BubbleTextView bubbleTextView) {
+        public Float get(BubbleTextView bubbleTextView) {
-            return bubbleTextView.getTextAlpha();
+            return bubbleTextView.mTextAlpha;
         }
 
         @Override
-        public void set(BubbleTextView bubbleTextView, Integer alpha) {
+        public void set(BubbleTextView bubbleTextView, Float alpha) {
             bubbleTextView.setTextAlpha(alpha);
         }
     };
 
+    private final BaseDraggingActivity mActivity;
+    private Drawable mIcon;
+    private final boolean mCenterVertically;
+
+    private final CheckLongPressHelper mLongPressHelper;
+    private final StylusEventHelper mStylusEventHelper;
+    private final float mSlop;
+
+    private final boolean mLayoutHorizontal;
+    private final int mIconSize;
+
+    @ViewDebug.ExportedProperty(category = "launcher")
+    private boolean mIsIconVisible = true;
+    @ViewDebug.ExportedProperty(category = "launcher")
+    private int mTextColor;
+    @ViewDebug.ExportedProperty(category = "launcher")
+    private float mTextAlpha = 1;
+
+    private BadgeInfo mBadgeInfo;
+    private BadgeRenderer mBadgeRenderer;
+    private int mBadgeColor;
+    private float mBadgeScale;
+    private boolean mForceHideBadge;
+    private Point mTempSpaceForBadgeOffset = new Point();
+    private Rect mTempIconBounds = new Rect();
+
     @ViewDebug.ExportedProperty(category = "launcher")
     private boolean mStayPressed;
     @ViewDebug.ExportedProperty(category = "launcher")
@@ -166,7 +171,7 @@ public class BubbleTextView extends TextView implements ItemInfoUpdateReceiver,
 
         setEllipsize(TruncateAt.END);
         setAccessibilityDelegate(mActivity.getAccessibilityDelegate());
-
+        setTextAlpha(1f);
     }
 
     @Override
@@ -404,13 +409,17 @@ public class BubbleTextView extends TextView implements ItemInfoUpdateReceiver,
     @Override
     public void setTextColor(int color) {
         mTextColor = color;
-        super.setTextColor(color);
+        super.setTextColor(getModifiedColor());
     }
 
     @Override
     public void setTextColor(ColorStateList colors) {
         mTextColor = colors.getDefaultColor();
-        super.setTextColor(colors);
+        if (Float.compare(mTextAlpha, 1) == 0) {
+            super.setTextColor(colors);
+        } else {
+            super.setTextColor(getModifiedColor());
+        }
     }
 
     public boolean shouldTextBeVisible() {
@@ -421,19 +430,21 @@ public class BubbleTextView extends TextView implements ItemInfoUpdateReceiver,
     }
 
     public void setTextVisibility(boolean visible) {
-        if (visible) {
+        setTextAlpha(visible ? 1 : 0);
-            super.setTextColor(mTextColor);
+    }
-        } else {
+
-            setTextAlpha(0);
+    private void setTextAlpha(float alpha) {
+        mTextAlpha = alpha;
+        super.setTextColor(getModifiedColor());
+    }
+
+    private int getModifiedColor() {
+        if (mTextAlpha == 0) {
+            // Special case to prevent text shadows in high contrast mode
+            return Color.TRANSPARENT;
         }
-    }
+        return ColorUtils.setAlphaComponent(
-
+                mTextColor, Math.round(Color.alpha(mTextColor) * mTextAlpha));
-    public void setTextAlpha(int alpha) {
-        super.setTextColor(ColorUtils.setAlphaComponent(mTextColor, alpha));
-    }
-
-    private int getTextAlpha() {
-        return Color.alpha(getCurrentTextColor());
     }
 
     /**
@@ -441,8 +452,8 @@ public class BubbleTextView extends TextView implements ItemInfoUpdateReceiver,
      * @param fadeIn Whether the text should fade in or fade out.
      */
     public ObjectAnimator createTextAlphaAnimator(boolean fadeIn) {
-        int toAlpha = shouldTextBeVisible() && fadeIn ? Color.alpha(mTextColor) : 0;
+        float toAlpha = shouldTextBeVisible() && fadeIn ? 1 : 0;
-        return ObjectAnimator.ofInt(this, TEXT_ALPHA_PROPERTY, toAlpha);
+        return ObjectAnimator.ofFloat(this, TEXT_ALPHA_PROPERTY, toAlpha);
     }
 
     @Override

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

@@ -16,6 +16,7 @@
 
 package com.android.launcher3.folder;
 
+import static com.android.launcher3.BubbleTextView.TEXT_ALPHA_PROPERTY;
 import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
 import static com.android.launcher3.folder.ClippedFolderIconLayoutRule.MAX_NUM_ITEMS_IN_PREVIEW;
 
@@ -172,9 +173,8 @@ public class FolderAnimationManager {
         AnimatorSet a = LauncherAnimUtils.createAnimatorSet();
 
         // Initialize the Folder items' text.
-        PropertyResetListener colorResetListener = new PropertyResetListener<>(
+        PropertyResetListener colorResetListener =
-                BubbleTextView.TEXT_ALPHA_PROPERTY,
+                new PropertyResetListener<>(TEXT_ALPHA_PROPERTY, 1f);
-                Color.alpha(Themes.getAttrColor(mContext, android.R.attr.textColorSecondary)));
         for (BubbleTextView icon : mFolder.getItemsOnPage(mFolder.mContent.getCurrentPage())) {
             if (mIsOpening) {
                 icon.setTextVisibility(false);