android - 使用bindview后如何获取 View 对象？

Question

我有一个带有加载程序的自定义游标适配器。我想在加载数据并使用 bindview 创建 View 后在 onLoadFinished() 中获取 View 对象，这样我就可以更改 EditText View 的属性(例如可见性)。但是 bindview 不返回对 View 对象的引用。

我可以只使用..

TextView myView = (TextView)this.findViewById(R.id.recipe_instructions);

在

public void onLoadFinished(Loader<Cursor> cursorLoader, Cursor cursor) {
    dataAdapter.swapCursor(cursor);
    dataAdapter.bindView(findViewById(R.id.recipe_name), this, cursor);
    dataAdapter.bindView(findViewById(R.id.recipe_instructions), this, cursor);

    TextView myView = (TextView)this.findViewById(R.id.recipe_instructions);
}

在这种情况下，我只是为每个 ID 创建 1 个 View ，但如果我创建了很多呢？我将如何获得对 View 对象的引用，以便我可以特别更改 1 的属性？

Answer 1

您的光标适配器必须像:

public class TodoCursorAdapter extends CursorAdapter {
  public TodoCursorAdapter(Context context, Cursor cursor) {
  super(context, cursor, 0);
  }
// The newView method is used to inflate a new view and return it, 
// you don't bind any data to the view at this point. 
  @Override
  public View newView(Context context, Cursor cursor, ViewGroup parent) {
return LayoutInflater.from(context).inflate(R.layout.item_todo, parent, false);
}
// The bindView method is used to bind all data to a given view
// such as setting the text on a TextView. 
@Override
public void bindView(View view, Context context, Cursor cursor) {
  // Find fields to populate in inflated template
  TextView tvBody = (TextView) view.findViewById(R.id.tvBody);
  TextView tvPriority = (TextView) view.findViewById(R.id.tvPriority);
  // Extract properties from cursor
  String body = cursor.getString(cursor.getColumnIndexOrThrow("body"));
  int priority = cursor.getInt(cursor.getColumnIndexOrThrow("priority"));
  // Populate fields with extracted properties
  tvBody.setText(body);
  tvPriority.setText(String.valueOf(priority));
}
}

使用此链接:Populating-a-ListView-with-a-CursorAdapter