如何将搜索添加到列表视图android，按您的类型对项目进行排序

Posted 2023-04-15

【中文标题】如何将搜索添加到列表视图android，按您的类型对项目进行排序

【英文标题】：how to add search to a list view android, sort items as u type

【发布时间】：2012-01-29 03:34:09

【问题描述】：

我有一个带有搜索栏的列表视图，我想在编辑文本中键入文本时对项目进行排序。我一直在尝试做一整天，但无法完成，你们能帮我做吗？我会很感激你提前谢谢

【问题讨论】：

参考这个***.com/questions/1737009/…

【参考方案1】：

请参考此代码

package com.android.swfPlayer;

import java.util.ArrayList;

import android.app.Activity;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.Log;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.ListView;

public class SwfAndroidActivity extends Activity 
    /** Called when the activity is first created. */
    private EditText edtField;
    ListView l1;
    ArrayList<String> array = new ArrayList<String>();
    ArrayList<String> type_name_copy = new ArrayList<String>();
    String[] array1 =  "abd", "bcd", "cdg", "sada", "fs", "fsf", "fsf" ;

    @Override
    public void onCreate(Bundle savedInstanceState) 
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        array.add("abd");
        array.add("bcd");
        array.add("cdg");
        array.add("sada");
        array.add("abd");
        array.add("fs");
        array.add("fsf");
        array.add("afsf");

        l1 = (ListView) findViewById(R.id.listView1);
        edtField = (EditText) findViewById(R.id.editText1);
        listUpdate(array);

        edtField.addTextChangedListener(new TextWatcher() 
            @Override
            public void onTextChanged(CharSequence s, int start, int before,
                    int count) 
            

            @Override
            public void beforeTextChanged(CharSequence s, int start, int count,
                    int after) 
            

            @Override
            public void afterTextChanged(Editable theWatchedText) 
                ArrayList<String> type_name_filter = new ArrayList<String>();

                String text = theWatchedText.toString();

                for (int i = 0; i < array.size(); i++) 

                    if ((array.get(i).toLowerCase()).contains(text
                            .toLowerCase())) 
                        type_name_filter.add(array.get(i));

                    
                

                type_name_copy = type_name_filter;

                listUpdate(type_name_copy);
            
        );

    

    public void listUpdate(ArrayList<String> data) 
        l1.setAdapter(new ArrayAdapter<String>(this,
                android.R.layout.simple_list_item_1, data));

    

【讨论】：

这里你用一个静态数组来做这件事。如果没有那个我怎么办？文本改变了？

你只需要传递动态数组而不是静态数组

【参考方案2】：

你必须在 afterTextChanged 时使用 lv.setAdapter(this.adapter) 设置适配器。

@Override
public void afterTextChanged(Editable s) 
//adapeter should be member variable
           lv.setAdapter(this.adapter)

【讨论】：

感谢您的帮助..但这不起作用..我想在我们输入时进行过滤

你确定这条线吗？ adapter.getFilter().filter(s.toString().trim()) ;

是的，这就是我写的……我应该改变吗？当我开始输入时，列表消失了

您想在输入时还是输入后过滤列表？

@Override public void afterTextChanged(Editable s) //adapeter 应该是成员变量 lv.setAdapter(this.adapter)

【参考方案3】：

data = new ArrayList<Item>(10);
    data.add(new Item(100, "Sample Food1"));
    data.add(new Item(110, "Sample Food2"));
    data.add(new Item(120, "Sample Food3"));
    data.add(new Item(130, "Sample Food4"));
    data.add(new Item(140, "Sample Food5"));
    data.add(new Item(150, "Sample Food6"));
    data.add(new Item(160, "Sample Food7"));
    data.add(new Item(170, "Sample Food8"));
    data.add(new Item(180, "Sample Food9"));
    data.add(new Item(190, "Sample Food10"));
    data.add(new Item(200, "Sample Food11"));
    data.add(new Item(210, "Sample Food12"));
    Collections.sort(data, new Comparator<Item>()
        
            public int compare(Item i1, Item i2) 
            
                return i1.getCaption().compareTo(i2.getCaption());
            
        );
    adapter = new ItemListAdapter(this, data);

【参考方案4】：

Use combination of methods startsWith() and contains().


public void onTextChanged(CharSequence str, int start, int before,
                    int count) 



                array_sort.clear();
                for (int i = 0; i < myList.size(); i++) 


                        String tex_inlist = myList.get(i).getTitle()
                                .toLowerCase();

                        if (tex_inlist.startsWith(str)) 
                            array_sort.add(0,myList.get(i));//add to the begining of list

                        
                        else if(tex_inlist.contains(str))
                            array_sort.add(myList.get(i));//add to the end of list

                        

                



                RateArrayAdapter new_adapter = new RateArrayAdapter(
                        (Activity) context, array_sort);
                lvDetail.setAdapter(new_adapter);