半透明对话框显示为透明

Question

我有一个我希望半透明的对话框实际上是完全透明的。

    Dialog dialog = new Dialog(this, android.R.style.Theme_Translucent);
    dialog.setContentView(R.layout.scores);
    ListView lvw = (ListView)dialog.getWindow().findViewById(R.id.lvwScores);



    LayoutInflater inflater = this.getLayoutInflater();
    View footerView = inflater.inflate(R.layout.playerscorestotals, null);

            ((TextView) footerView.findViewById(R.id.tvwPlayer1Total)).setText(String.valueOf(totalsCursor.getInt(totalsCursor.getColumnIndex("player1Total"))));
            ((TextView) footerView.findViewById(R.id.tvwPlayer2Total)).setText(String.valueOf(totalsCursor.getInt(totalsCursor.getColumnIndex("player2Total"))));
            ((TextView) footerView.findViewById(R.id.tvwPlayer3Total)).setText(String.valueOf(totalsCursor.getInt(totalsCursor.getColumnIndex("player3Total"))));
            lvw.addFooterView(footerView);

            ((TextView) dialog.findViewById(R.id.tvwPlayer1Name)).setText(players[1].playerName);
            ((TextView) dialog.findViewById(R.id.tvwPlayer2Name)).setText(players[2].playerName);
            ((TextView) dialog.findViewById(R.id.tvwPlayer3Name)).setText(players[3].playerName);

            lvw.setAdapter(new SimpleCursorAdapter(this, R.layout.playerscoresrow, scoresCursor, 
                    new String[] {"_id","player0Score","player1Score",
                                  "player2Score","player3Score"}, 
                    new int[]    {R.id.tvwGameNumber,R.id.tvwPlayer0Score,    R.id.tvwPlayer1Score, 
                                  R.id.tvwPlayer2Score,       R.id.tvwPlayer3Score }
            ));

scores.xml：

 <?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent" android:layout_height="wrap_content">
<TextView   android:id="@+id/tvwGameOver" android:layout_weight="1" android:gravity="center"
            android:textSize="25sp" android:visibility="gone"
            android:layout_width="fill_parent" android:layout_height="wrap_content"/>
<LinearLayout 
  android:id="@+id/lloPlayerNames" xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent" android:layout_height="wrap_content" 
  android:orientation="horizontal" android:footerDividersEnabled="true"
  android:headerDividersEnabled="true" android:layout_below="@id/tvwGameOver">
  <TextView
    android:id="@+id/tvwGameNumberHeader" android:layout_weight="1" android:gravity="right"
    android:text="@string/scores_GameNumber" android:textSize="12sp"
    android:layout_width="fill_parent" android:layout_height="wrap_content"
    android:layout_marginRight="13sp"/>
  <TextView
    android:id="@+id/tvwPlayer0Name" android:layout_weight="1" android:gravity="right"
    android:textSize="12sp"
    android:layout_width="fill_parent" android:layout_height="wrap_content"
    android:layout_marginRight="13sp"/>
  <TextView
    android:id="@+id/tvwPlayer1Name" android:layout_weight="1" android:gravity="right"
     android:textSize="12sp"
    android:layout_width="fill_parent" android:layout_height="wrap_content"
    android:layout_marginRight="13sp"/>
  <TextView     
    android:id="@+id/tvwPlayer2Name" android:layout_weight="1" android:gravity="right"
     android:textSize="12sp"
    android:layout_width="fill_parent" android:layout_height="wrap_content"
    android:layout_marginRight="13sp"/>
  <TextView     
    android:id="@+id/tvwPlayer3Name" android:layout_weight="1" android:gravity="right"
    android:textSize="12sp"
    android:layout_width="fill_parent" android:layout_height="wrap_content"
    android:layout_marginRight="13sp"/>
</LinearLayout>


  <ListView
   android:id="@+id/lvwScores" android:layout_below="@id/lloPlayerNames"
   android:layout_width="fill_parent" android:layout_height="wrap_content"  
   android:divider="#FFFFFF" android:dividerHeight="1dip"
   android:footerDividersEnabled="true" android:headerDividersEnabled ="true"/>

<Button android:id="@+id/btnOK"
  android:layout_height="wrap_content" android:layout_width="120dip" 
  android:layout_weight="1"
  android:text="OK" android:layout_centerHorizontal="true" 

  android:layout_alignParentBottom="true" 

   />
</RelativeLayout>

playerscorestotals.xml：

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal">
  <TextView android:id="@+id/tvwTotalHeader" android:layout_weight="1" android:gravity="left" android:text="Total:" 
    android:layout_width="fill_parent" android:layout_height="wrap_content" />
  <TextView android:id="@+id/tvwPlayer0Total" android:layout_weight="1" android:gravity="right"
    android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginRight="12sp"/>
  <TextView android:id="@+id/tvwPlayer1Total" android:layout_weight="1" android:gravity="right"
    android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginRight="12sp"/>
  <TextView android:id="@+id/tvwPlayer2Total" android:layout_weight="1" android:gravity="right"
    android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginRight="12sp"/>
  <TextView android:id="@+id/tvwPlayer3Total" android:layout_weight="1" android:gravity="right"
    android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginRight="12sp"/>
</LinearLayout>

playerscoresrow.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal">
  <TextView android:id="@+id/tvwGameNumber" android:layout_weight="1" android:gravity="center_horizontal"
    android:layout_width="fill_parent" android:layout_height="wrap_content"/>
  <TextView android:id="@+id/tvwPlayer0Score" android:layout_weight="1" android:gravity="right"
    android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginRight="12sp"/>
  <TextView android:id="@+id/tvwPlayer1Score" android:layout_weight="1" android:gravity="right"
    android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginRight="12sp"/>
  <TextView android:id="@+id/tvwPlayer2Score" android:layout_weight="1" android:gravity="right"
    android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginRight="12sp"/>
  <TextView android:id="@+id/tvwPlayer3Score" android:layout_weight="1" android:gravity="right"
    android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginRight="12sp"/>
</LinearLayout>