相关疑难解决方法(0)

我想根据数据库值在 ListView 中显示一个图标。我按照这个答案来这样做。但结果什么也没有显示。这是我的row.xml中的内容：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="fill_parent"
     android:layout_height="wrap_content"
     android:orientation="horizontal">

    <ImageView
        android:id="@+id/movie_subscribed_icon"
        android:padding="3dip"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/star_off"/>

    <LinearLayout 
         android:layout_width="fill_parent"
         android:layout_height="wrap_content"
         android:orientation="vertical">

     <TextView android:id="@+id/movie_name"
     ...

这是代码：

    movies.setViewBinder(new SimpleCursorAdapter.ViewBinder() {

        @Override
        public boolean setViewValue(View view, Cursor cursor, int columnIndex) {
          int viewId = view.getId();
          switch(viewId) {
          case R.id.movie_name:
                  int readValue = cursor.getInt(cursor.getColumnIndexOrThrow(MoviesDbAdapter.KEY_READ));
                  if (readValue == 1) { // viewed movie item
                      TextView movieName = (TextView) view;
                      movieName.setTextColor(Color.GRAY);
                  }
                  break;
          case R.id.movie_subscribed_icon:
              int subscribedValue = cursor.getInt(cursor.getColumnIndexOrThrow(MoviesDbAdapter.KEY_READ));
                  if (subscribedValue > 0) { // …