相关疑难解决方法(0)

我正在开发应用程序,其中有列表和上面的编辑文本,我将在editText中键入内容的那一刻我应该得到结果匹配的类型word.bt我不能得到结果,Plz告诉我在哪里犯错误？以下是我的活动和适配器.

**活动**

public class ListFilterActivity extends ListActivity{

    ListView list;
    @Override
    protected void onCreate(Bundle savedInstanceState) {    
        super.onCreate(savedInstanceState);
        setContentView(R.layout.list_filter);   

        list = getListView();
        list.isTextFilterEnabled();

//      final ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
//                android.R.layout.simple_list_item_1, android.R.id.text1,
//                getModel());
        final CustomAdapter adapter = new CustomAdapter(ListFilterActivity.this, getModel());
        setListAdapter(adapter);
        EditText filterEditText = (EditText) findViewById(R.id.filterText);
        filterEditText.addTextChangedListener(new TextWatcher() {

            public void onTextChanged(CharSequence s, int start, int before,
                    int count) {
                adapter.getFilter().filter(s.toString());
            }

            public void beforeTextChanged(CharSequence s, int start, int count,
                    int after) {
            }

            public void afterTextChanged(Editable s) { …

在我Listview,我有文字和图像,他们存储在ArrayList.

我BaseAdapter用来显示列表.

我想filter在列表中使用基于输入的文本EditText,但是不起作用.

我的代码是:adv是EditText

  adv.addTextChangedListener(new TextWatcher() {

            @Override
            public void onTextChanged(CharSequence s, int arg1, int arg2, int arg3) {
                // TODO Auto-generated method stub
                viewadapter.getFilter().filter(s);

            }

            @Override
            public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
                    int arg3) {
                // TODO Auto-generated method stub

            }

            @Override
            public void afterTextChanged(Editable arg0) {
                // TODO Auto-generated method stub

            }
        });

而我的BaseAdapter工具Filterable,以便getFilter在该方法是:

@Override
        public Filter getFilter() {
            // …

我试图在基础适配器上实现一个getFilter()来过滤掉List上的搜索结果.有没有关于如何实现getFilter()的示例？

MainActivity.java

   final AppInfoAdapter adapter = new AppInfoAdapter(this, Utilities.getSystemFilteredApplication(this), getPackageManager());


        public void onTextChanged(CharSequence s, int start, int before,
                int count) {
           adapter.getFilter().filter(s); //Filter from my adapter
           adapter.notifyDataSetChanged(); //Update my view
        }

AppInfoAdapter.java

package com.example.permission;

import java.util.List;

import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.Filter;
import android.widget.Filterable;
import android.widget.ImageView;
import android.widget.TextView;

public class AppInfoAdapter extends BaseAdapter implements Filterable{
    private Context mContext;
    private List mListAppInfo;
    PackageManager mPackManager;

    public AppInfoAdapter(Context c, List list, …

我想实现getFilter()我的功能ListView,但每次我输入的东西EditText我ListView就会消失.

我的SetHelpRows档案:

public class SetHelpRows {
    String name;
    String id;

    public String getName () {
        return name;
    }

    public void setName (String name) {
        this.name = name;
    }

    public String getID () {
        return id;
    }

    public void setID (String id) {
        this.id = id;
    }

    public SetHelpRows(String name, String id) {
        super();
        this.name = name;
        this.id = id;
    }
}

我的SetHelpRowsCustomAdapter档案:

import java.util.ArrayList;

import android.app.Activity;
import android.content.Context; …