AutoCompleteTextView 没有完成括号内的单词 [英] AutoCompleteTextView not completing words inside parentheses

问题描述

我已经实现了 AutoCompleteTextView 如下:

MainActivity.java

<代码>...public static String[] myData=new String[]{"Africa (AF)","America (AFM)","Apple (AMP)"};text=(AutoCompleteTextView)v.findViewById(R.id.first_state);ArrayAdapter 适配器 = new ArrayAdapter(getActivity(),R.layout.autocompletetextview_row,R.id.textViewItem,myData);text.setAdapter(适配器)；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 对选中的文本做一些事情}});

在AutoCompleteTextView的布局中:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="fill_parent"android:layout_height="fill_parent"机器人:背景=#FFFFFF"android:padding="10dp" ><文本视图android:id="@+id/textViewItem"android:layout_width="match_parent"android:layout_height="wrap_content"android:layout_alignParentTop="true"android:text="这里的项目名称..."android:textColor="#000000"android:textSize="20sp"/></RelativeLayout>

当我输入af.."时，它显示我Africa (AF)选择但不是America (AFM).

数据只是示例数据.并不是我将 AutoCompleteTextView 仅用于 3 个项目.

当我删除括号时，它可以正常工作.但我需要保留括号以供进一步使用.

解决方案

ArrayAdapter 的 filter 的默认实现正在搜索开头单词(用空格分隔)，我的意思是它使用 startsWith.您需要实现一个 ArrayFilter，它使用 contains 和 startsWith.

您的问题将通过以下步骤解决:

• 从

  希望这有帮助！

  I have implemented AutoCompleteTextView as follows:

  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
          }
      });
  

  In layout of 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>
  

  When I type like "af..", it shows me Africa (AF) to select but not America (AFM).

  The data is just an example data. it's not that I am using AutoCompleteTextView for just 3 items.

  EDIT: when I remove the parentheses, it works properly. But I need to keep the parentheses for further use.

  解决方案

  The default implementation of the filter for ArrayAdapter is searching the beginning of words (separated by space), I mean it uses startsWith. You will need to implement an ArrayFilter which uses contains together with startsWith.

  Your issue will be solved by the following steps:

  • Download the ArrayAdapter.java file from here
  • Add that file into the project (you can refactor by renaming file to CustomArrayAdapter.java, for example).

  • In the file, you will find a private class ArrayFilter. Then, add valueText.contains(prefixString) and words[k].contains(prefixString) as the following:

                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;
                        }
                    }
                }
    

  • Use that customized ArrayAdapter for your AutoCompleteTextView

  And here is the result screenshot:

  Hope this helps!

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