Fix talkback doesn't speak subtext info

In the original design, we only set title description for
view holder, this is wrong. It causes talkback can't
speak subtext info.

Currently, we set the title content description in the title
view directly, so talkback can say the title and subtext now
when talkback focus on an app view.

Test: Talkback speaks full information for an app entry
Fix: 177873163
Change-Id: I94996d596a85cc2813ed1b10cdd4ed2bee62f4a9

src/com/android/settings/applications/manageapplications/ApplicationViewHolder.java

@@ -19,6 +19,7 @@ package com.android.settings.applications.manageapplications;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
 import android.graphics.drawable.Drawable;
+import android.text.TextUtils;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -37,9 +38,8 @@ import com.android.settingslib.applications.ApplicationsState.AppEntry;
 
 public class ApplicationViewHolder extends RecyclerView.ViewHolder {
 
-    private final TextView mAppName;
-    private final ImageView mAppIcon;
-
+    @VisibleForTesting
+    final TextView mAppName;
     @VisibleForTesting
     final TextView mSummary;
     @VisibleForTesting
@@ -49,6 +49,8 @@ public class ApplicationViewHolder extends RecyclerView.ViewHolder {
     @VisibleForTesting
     final Switch mSwitch;
 
+    private final ImageView mAppIcon;
+
     ApplicationViewHolder(View itemView) {
         super(itemView);
         mAppName = itemView.findViewById(android.R.id.title);
@@ -95,11 +97,16 @@ public class ApplicationViewHolder extends RecyclerView.ViewHolder {
         itemView.setEnabled(isEnabled);
     }
 
-    void setTitle(CharSequence title) {
+    void setTitle(CharSequence title, CharSequence contentDescription) {
         if (title == null) {
             return;
         }
         mAppName.setText(title);
+
+        if (TextUtils.isEmpty(contentDescription)) {
+            return;
+        }
+        mAppName.setContentDescription(contentDescription);
     }
 
     void setIcon(int drawableRes) {

src/com/android/settings/applications/manageapplications/ManageApplications.java

@@ -1422,9 +1422,8 @@ public class ManageApplications extends InstrumentedFragment
             // Bind the data efficiently with the holder
             final ApplicationsState.AppEntry entry = mEntries.get(position);
             synchronized (entry) {
-                holder.setTitle(entry.label);
                 mState.ensureLabelDescription(entry);
-                holder.itemView.setContentDescription(entry.labelDescription);
+                holder.setTitle(entry.label, entry.labelDescription);
                 mState.ensureIcon(entry);
                 holder.setIcon(entry.icon);
                 updateSummary(holder, entry);

tests/robotests/src/com/android/settings/applications/manageapplications/ApplicationViewHolderTest.java

@@ -69,6 +69,22 @@ public class ApplicationViewHolderTest {
         assertThat(mHolder.mSummary.getText()).isEqualTo(mContext.getText(R.string.disabled));
     }
 
+    @Test
+    public void setTitle_titleIsNotEmptyAndContentIsNotEmpty_shouldSetTitleAndContentDescription() {
+        mHolder.setTitle("title", "content");
+
+        assertThat(mHolder.mAppName).isEqualTo("title");
+        assertThat(mHolder.mAppName.getContentDescription()).isEqualTo("content");
+    }
+
+    @Test
+    public void setTitle_titleIsNotEmptyButContentIsEmpty_shouldSetTitle() {
+        mHolder.setTitle("title", "");
+
+        assertThat(mHolder.mAppName).isEqualTo("title");
+        assertThat(mHolder.mAppName.getContentDescription()).isEqualTo("title");
+    }
+
     @Test
     public void updateSize() {
         final String invalidStr = "invalid";