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我的代碼就像下面的例子。 它應該只調用一次newView(),但我不知道爲什麼它被一次又一次地調用?CursorAdapter中的newView()被再次調用
public class TimeListAdapter extends CursorAdapter {
private static class ViewHolder {
int nameIndex;
int timeIndex;
TextView name;
TextView time;
}
public TimeListAdapter(Context context, Cursor c, int flags) {
super(context, c, flags);
}
@Override
public void bindView(View view, Context context, Cursor cursor) {
ViewHolder holder = (ViewHolder) view.getTag();
holder.name.setText(cursor.getString(holder.nameIndex));
holder.time.setText(cursor.getString(holder.timeIndex));
}
@Override
public View newView(Context context, Cursor cursor, ViewGroup
p parent) {
View view = LayoutInflater.from(context).inflate
p (R.layout.time_row, null);
ViewHolder holder = new ViewHolder();
holder.name = (TextView) view.findViewById(R.id.task_name);
holder.time = (TextView) view.findViewById(R.id.task_time);
holder.nameIndex = cursor.getColumnIndexOrThrow
p (TaskProvider.Task.NAME);
holder.timeIndex = cursor.getColumnIndexOrThrow
p (TaskProvider.Task.DATE);
view.setTag(holder);
return view;
}
}
舉例來說,我必須要顯示項目,NewView的()方法應該被調用一次就可以重用視圖(請糾正我,如果我錯了)。
但是這裏至少需要7次。我做錯了什麼?其他東西根本上錯誤重新使用CursorAdapter的ListView?