Question

我正在使用AutoCompleteTextView创建一个Deck Building应用程序，在我的一个用户报告它无法正常工作之前，一切似乎都没问题。

视图应根据提供的卡片名称列表自动完成，但似乎并未显示所有相关选项。

例如，视图中包含以下名称

＆＃34; Sweet Apple Acres的水浸＆＃34; ＆＃34;保存甜苹果英亩＆＃34; ＆＃34;甜苹果亩＆＃34; ＆＃34;甜蜜和善良＆＃34;

打字＆＃34; Sweet＆＃34;进入视图将显示所有这些值，但键入＆＃34; Sweet＆＃34; （带尾随空格）或＆＃34; Sweet A＆＃34;只返回结果＆＃34; Sweet Apple Acres＆＃34;和＆＃34; Sweet And Kind＆＃34;即使所有其他选项都有效。

如果文本字段中有空格，则似乎忽略任何不以给定文本开头的自动完成选项。有没有办法改变这个？我使用默认设置使用基本的AutoCompleteTextView。

AutoCompleteTextView autoText = (AutoCompleteTextView) view.findViewById(R.id.card_name);

        ArrayAdapter<String> adapter = new ArrayAdapter<String>(mContext, android.R.layout.simple_dropdown_item_1line, CardDatabase.CARD_NAMES);
        autoText.setAdapter(adapter);

Answer 1

您可以使用自定义适配器

public class CustomAdapter extends BaseAdapter implements Filterable {


private Context context;


private List<String> originalData;
private List<String> filteredData;

private ItemFilter mFilter = new ItemFilter();

public CustomAdapter(List<String> itemList, Context ctx) {

    originalData = new ArrayList<String>();
    filteredData = new ArrayList<String>();

    filteredData = itemList;
    originalData = itemList;

    context = ctx;
}

@Override
public int getCount() {
    return filteredData.size();
}

@Override
public Object getItem(int position) {
    return filteredData.get(position);
}

@Override
public long getItemId(int position) {
    return position;
}

@Override
public View getView(final int position, View convertView, ViewGroup parent) {

    if (convertView == null) {
        LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = inflater.inflate(android.R.layout.simple_dropdown_item_1line, null);
    }

    final TextView text = (TextView) convertView.findViewById(android.R.id.textView);

    text.setText(filteredData.get(position));

    return convertView;
}

public Filter getFilter() {
    return mFilter;
}

private class ItemFilter extends Filter {
    @Override
    protected FilterResults performFiltering(CharSequence constraint) {

        String filterString = constraint.toString().toLowerCase();

        Filter.FilterResults results = new FilterResults();

        final List<String> list = originalData;

        int count = list.size();
        final ArrayList<String> nlist = new ArrayList<String>(count);

        String filterableString;

        for (int i = 0; i < count; i++) {

            filterableString = list.get(i);

            if (filterableString.toLowerCase().startsWith(filterString)) {
                nlist.add(filterableString);
            }
        }

        results.values = nlist;
        results.count = nlist.size();

        return results;
    }

    @SuppressWarnings("unchecked")
    @Override
    protected void publishResults(CharSequence constraint, FilterResults results) {
        filteredData = (ArrayList<String>) results.values;
        notifyDataSetChanged();
    }

}

}

Answer 2

发布后我立刻得到了启示，并将我的问题重新写入谷歌并遇到了这个问题 AutoCompleteTextView doesn't show dropdown when I press space after typing a complete word

与此相关联 https://github.com/luksprog/DroidPlayground/blob/95d127a0fdd1c7c2520650081fadedb4d54ffe32/src/com/luksprog/dp/adapter/FilterWithSpaceAdapter.java

并解决了我的问题。

AutoCompleteTextView未显示所有相关建议

2 个答案: