AutoCompleteTextView未完成括号内的单词

Question

我已经实现AutoCompleteTextView如下:

MainActivity.java

...
    public static String[] myData=new String[]{"Africa (AF)","America (AFM)","Apple (AMP)"};
    text=(AutoCompleteTextView)v.findViewById(R.id.first_state);
    ArrayAdapter adapter = new ArrayAdapter(getActivity(),R.layout.autocompletetextview_row,R.id.textViewItem,myData);

    text.setAdapter(adapter);
    text.setThreshold(1);
    text.setOnItemClickListener(new OnItemClickListener() {
        public void onItemClick(AdapterView<?> parent, View view, int position, long rowId) {

            selected_station = (String)parent.getItemAtPosition(position);
            //TODO Do something with the selected text
        }
    });

布局AutoCompleteTextView:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#FFFFFF"
    android:padding="10dp" >
    <TextView
        android:id="@+id/textViewItem"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:text="Item name here..."
        android:textColor="#000000"
        android:textSize="20sp" />
 </RelativeLayout>

当我输入类似"af .."时,它显示非洲(AF)选择但不是美国(AFM).

数据只是一个示例数据.这不是我AutoCompleteTextView只用于3件物品.

编辑:当我删除括号时,它正常工作.但我需要保留括号以供进一步使用.

Answer 1

在默认的实施过滤器用于ArrayAdapter在搜索词的开头(用空格隔开),我的意思是它使用startsWith.你将需要实现ArrayFilter它使用contains与一起startsWith.

您的问题将通过以下步骤解决:

• ArrayAdapter.java从这里下载文件
• 将该文件添加到项目中(例如,您可以通过重命名文件来重构CustomArrayAdapter.java).

• 在该文件中,您将找到一个私有类ArrayFilter.然后,添加valueText.contains(prefixString)并words[k].contains(prefixString)如下所示:

              if (valueText.startsWith(prefixString) || valueText.contains(prefixString)) {
                  newValues.add(value);
              } else {
                  final String[] words = valueText.split(" ");
                  final int wordCount = words.length;
                  // Start at index 0, in case valueText starts with space(s)
                  for (int k = 0; k < wordCount; k++) {
                      if (words[k].startsWith(prefixString) || words[k].contains(prefixString)) {
                          newValues.add(value);
                          break;
                      }
                  }
              }
  

• 使用ArrayAdapter为您定制的AutoCompleteTextView

这是结果截图:

希望这可以帮助!

Answer 2

@BNK提供的答案是正确的.但是,我想提供一个类似的解决方案,它不需要整个ArrayAdapter类文件.相反,我们将只扩展该类并覆盖其仅有的两种方法:getView()和getFilter().因此,定义您的自动完成类:

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Filter;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.List;

public class AutoSuggestAdapter extends ArrayAdapter
{
    private Context      context;
    private int          resource;
    private List<String> items;
    private List<String> tempItems;
    private List<String> suggestions;

    public AutoSuggestAdapter(Context context, int resource, List<String> items)
    {
        super(context, resource, 0, items);

        this.context = context;
        this.resource = resource;
        this.items = items;
        tempItems = new ArrayList<String>(items);
        suggestions = new ArrayList<String>();
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent)
    {
        View view = convertView;
        if (convertView == null)
        {
            LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            view = inflater.inflate(resource, parent, false);
        }

        String item = items.get(position);

        if (item != null && view instanceof TextView)
        {
            ((TextView) view).setText(item);
        }

        return view;
    }

    @Override
    public Filter getFilter()
    {
        return nameFilter;
    }

    Filter nameFilter = new Filter()
    {
        @Override
        public CharSequence convertResultToString(Object resultValue)
        {
            String str = (String) resultValue;
            return str;
        }

        @Override
        protected FilterResults performFiltering(CharSequence constraint)
        {
            if (constraint != null)
            {
                suggestions.clear();
                for (String names : tempItems)
                {
                    if (names.toLowerCase().contains(constraint.toString().toLowerCase()))
                    {
                        suggestions.add(names);
                    }
                }
                FilterResults filterResults = new FilterResults();
                filterResults.values = suggestions;
                filterResults.count = suggestions.size();
                return filterResults;
            }
            else
            {
                return new FilterResults();
            }
        }

        @Override
        protected void publishResults(CharSequence constraint, FilterResults results)
        {
            List<String> filterList = (ArrayList<String>) results.values;
            if (results != null && results.count > 0)
            {
                clear();
                for (String item : filterList)
                {
                    add(item);
                    notifyDataSetChanged();
                }
            }
        }
    };
}

以XML格式定义自动完整视图,例如:

       <AutoCompleteTextView
        android:id="@+id/autoComplete"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:hint="Enter some text ..."/>

并使用它:

    AutoCompleteTextView autoComplete = (AutoCompleteTextView) findViewById(R.id.autoComplete);

    List <String> stringList = new ArrayList<String>();
    stringList.add("Black");
    stringList.add("White");
    stringList.add("Yellow");
    stringList.add("Green");
    stringList.add("Blue");
    stringList.add("Brown");
    stringList.add("Orange");
    stringList.add("Pink");
    stringList.add("Violet");
    stringList.add("Cyan");
    stringList.add("LightBlue");

    AutoSuggestAdapter adapter = new AutoSuggestAdapter(this, android.R.layout.simple_list_item_1, stringList);

    autoComplete.setAdapter(adapter);

    // specify the minimum type of characters before drop-down list is shown
    autoComplete.setThreshold(1);