Adding progress information for preload icons in content description

Bug: 24086091
Change-Id: Id8fb024973f4affd998627d30077e2764b07edc4
diff --git a/src/com/android/launcher3/BubbleTextView.java b/src/com/android/launcher3/BubbleTextView.java
index 0742b0e..a6a1f4e 100644
--- a/src/com/android/launcher3/BubbleTextView.java
+++ b/src/com/android/launcher3/BubbleTextView.java
@@ -40,6 +40,8 @@
 import com.android.launcher3.IconCache.IconLoadRequest;
 import com.android.launcher3.model.PackageItemInfo;
 
+import java.text.NumberFormat;
+
 /**
  * TextView that draws a bubble behind the text. We cannot use a LineBackgroundSpan
  * because we want to make the bubble taller than the text and TextView's clip is
@@ -440,6 +442,11 @@
                     ((info.hasStatusFlag(ShortcutInfo.FLAG_INSTALL_SESSION_ACTIVE) ?
                             info.getInstallProgress() : 0)) : 100;
 
+            setContentDescription(progressLevel > 0 ?
+                getContext().getString(R.string.app_downloading_title, info.title,
+                        NumberFormat.getPercentInstance().format(progressLevel * 0.01)) :
+                    getContext().getString(R.string.app_waiting_download_title, info.title));
+
             if (mIcon != null) {
                 final PreloadIconDrawable preloadDrawable;
                 if (mIcon instanceof PreloadIconDrawable) {