Android:ListView 制作搜索过滤器

5

有没有一种方法可以在使用BaseAdapter创建的自定义列表视图上创建搜索过滤器,而不是使用ArrayAdapter的方法,因为我只遇到了使用ArrayAdapters的方法。以下是我遇到的内容:使用Array Adapter创建过滤器


我应该在我的BaseAdapter中实现Filterable接口吗? - hassanadnan
你在使用什么,游标还是数组或其他东西? - pawelzieba
用什么类型的集合? - pawelzieba
@dziobas 列表集合 - hassanadnan
4个回答

2
如果你正在使用List集合,那么可以扩展ArrayAdapter——它是BaseAdapter的子类。
重写getView方法(在你的情况下,只需复制旧的getView代码并进行一些修改)。
重写你的集合中对象的toString方法,并设置:
listView.setTextFilterEnabled(true);

我现在正在做这件事情:class FriendsListAdapter extends BaseAdapter implements Filterable 请问覆盖 BaseAdapter 是什么意思? - hassanadnan
正如我所写,覆盖ArrayAdapter会更加简单:class FriendsListAdapter extends ArrayAdapter<Friend> - pawelzieba
在布局中为ListView添加android:textFilterEnabled="true",以启用文本过滤功能。 - pawelzieba

2
以下是使用base adapter创建列表视图的示例。
我搜索了很多,但没有得到令人满意的解决方案。因此,我想把它放在这里,希望将来能帮助其他人。
以下是 history_container.xml 的代码。
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent" android:layout_height="fill_parent"
    android:orientation="vertical">
    <EditText android:layout_width="fill_parent" android:layout_height="wrap_content" 
        android:id="@+id/filter_text" />
    <FrameLayout android:layout_width="fill_parent"
        android:layout_height="fill_parent" android:id="@+id/historyContainerLayout" />
</LinearLayout>

这是history_list_view.xml的代码。
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_height="wrap_content" android:gravity="left|center"
    android:layout_width="wrap_content" android:paddingBottom="5px"
    android:paddingTop="5px" android:paddingLeft="5px">
    <TextView android:text="@+id/historytext" android:id="@+id/historytext"
        android:layout_width="wrap_content" android:layout_height="wrap_content"
        android:layout_marginLeft="10px" android:textColor="#0099CC"/>
</LinearLayout>

这是 history_schedule.xml 的代码。
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="fill_parent"
    android:layout_height="fill_parent">
    <ScrollView android:id="@+id/scrollItemInfo"
        android:layout_width="fill_parent" android:layout_height="1000dip">
        <LinearLayout android:orientation="vertical"
            android:layout_width="fill_parent" android:layout_height="fill_parent">
                <ListView android:id="@+id/historylist" android:layout_height="1000dip"
                        android:layout_width="fill_parent"/>
        </LinearLayout>
    </ScrollView>
</LinearLayout>

抱歉,我无法将代码放在正确的格式中。似乎有些东西已经改变了,因为没有很好的标签了。但是为了用户方便,拥有选项卡也是一个好主意。也许是我的错,我不能以正确的格式发布。而且似乎我们不能发布xml文件内容。所以,请考虑设计布局。
活动代码是:
package com.testfilter;

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

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewStub;
import android.widget.BaseAdapter;
import android.widget.EditText;
import android.widget.FrameLayout;
import android.widget.ListView;
import android.widget.TextView;


public class TestFilterListView extends Activity {
    FrameLayout historyContainer;
    ViewStub viewStub;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.history_container);
        historyContainer = (FrameLayout) findViewById(R.id.historyContainerLayout);
        EditText filterEditText = (EditText) findViewById(R.id.filter_text);
        filterEditText.addTextChangedListener(new TextWatcher() {

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {

                historyContainer.removeAllViews();
                final List<String> tempHistoryList = new ArrayList<String>();
                tempHistoryList.addAll(historyList);
                for(String data : historyList) {
                    if(data.indexOf((s.toString())) == -1) {
                        tempHistoryList.remove(data);
                    }
                }
                viewStub = new ViewStub(TestFilterListView.this, R.layout.history_schedule);
                viewStub.setOnInflateListener(new ViewStub.OnInflateListener()
                {
                    public void onInflate(ViewStub stub, View inflated)
                    {

                        setUIElements(inflated, tempHistoryList);
                    }
                });
                historyContainer.addView(viewStub);
                viewStub.inflate();

            }

            @Override
            public void beforeTextChanged(CharSequence s, int start, int count,
                    int after) {
                // TODO Auto-generated method stub

            }

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

            }
        });

        setViewStub();
    }


    /********************************************************************************************************/
    private void setViewStub()
    {
        historyList.add("first");
        historyList.add("second");
        historyList.add("third");
        historyList.add("fourth");
        historyList.add("fifth");
        historyList.add("sixth");
        historyList.add("seventh");


        viewStub = new ViewStub(TestFilterListView.this, R.layout.history_schedule);
        viewStub.setOnInflateListener(new ViewStub.OnInflateListener()
        {
            public void onInflate(ViewStub stub, View inflated)
            {

                setUIElements(inflated, historyList);
            }
        });
        historyContainer.addView(viewStub);
        viewStub.inflate();
    }

    /********************************************************************************************************/
    final List<String> historyList = new ArrayList<String>();
    String displayName = "";
    ListView historyListView;
    private void setUIElements(View v, List<String> historyLists)
    {

        if (v != null)
        {
            historyScheduleData.clear();
            //historyList.clear();

            historyScheduleData.addAll(historyLists);
            historyListView = (ListView) findViewById(R.id.historylist);
            historyListView.setAdapter(new BeatListAdapter(this));

            registerForContextMenu(historyListView);


        }
    }

    /********************************************************************************************************/
    private static class BeatListAdapter extends BaseAdapter {
        private LayoutInflater mInflater;

        public BeatListAdapter(Context context) {
            mInflater = LayoutInflater.from(context);

        }

        public int getCount() {
            return historyScheduleData.size();
        }

        public Object getItem(int position) {
            return position;
        }

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

        public View getView(int position, View convertView, ViewGroup parent) {
            ViewHolder holder;
            if (convertView == null) {
                convertView = mInflater.inflate(R.layout.history_list_view, null);
                holder = new ViewHolder();
                holder.historyData = (TextView) convertView
                        .findViewById(R.id.historytext);

                convertView.setTag(holder);
            } else {
                holder = (ViewHolder) convertView.getTag();
            }

            holder.historyData.setText(historyScheduleData.get(position));

            return convertView;
        }

        static class ViewHolder {

            TextView historyData;
        }
    }

    private static final List<String> historyScheduleData = new ArrayList<String>();


}

这是我的博客链接,您可以在此查看:[link] http://androidsearchfilterlistview.blogspot.com/ - Shiv Prakash

0

这是一个例子。编辑并使用您所需的内容。

public class CustomListAdapter extends BaseAdapter {
private ArrayList<String> countryStringList;
private ArrayList<Integer> countryImageList;
private LayoutInflater mInFlater;
// private Bitmap mIcon1;
// private Bitmap mIcon2;
private int layoutID;
private Context context;
// private LayoutInflater mInflater;
public CustomListAdapter(Context context, int textViewResourceId,
        ArrayList<String> stringObjects, ArrayList<Integer> imgObjects) {
    super();
    this.context = context;
    countryStringList = stringObjects;
    countryImageList = imgObjects;
    layoutID = textViewResourceId;
    mInFlater = LayoutInflater.from(context);
}

@Override
public int getCount() {
    // TODO Auto-generated method stub
    // return countryStringList.size();
    return countryStringList.size();
}

@Override
public Object getItem(int position) {
    // TODO Auto-generated method stub
    return position;
}

@Override
public long getItemId(int position) {
    // TODO Auto-generated method stub
    return position;
}

@Override
public View getView(final int position, View convertView, ViewGroup parent) {
    // TODO Auto-generated method stub
    final ViewHolder holder;
    if (convertView == null) {

        convertView = mInFlater.inflate(layoutID, null);
        holder = new ViewHolder();
        holder.textCountryName = (TextView) convertView
                .findViewById(R.id.txtSelectedCountryName);
        holder.icon = (ImageView) convertView
                .findViewById(R.id.imgSelectedCountryImage);
        holder.textCountryPosition = (TextView) convertView
                .findViewById(R.id.txtSelectedCountryPosition);
        // holder.checkBoxListView=(CheckBox)convertView.findViewById(R.id.CheckBoxListView);
        holder.relativeLayoutList = (RelativeLayout) convertView
                .findViewById(R.id.relativeLayoutListItem);
        holder.checkBoxListView = (CheckBox) convertView
                .findViewById(R.id.checkBoxSelectedCountry);
        convertView.setTag(holder);
    } else {
        holder = (ViewHolder) convertView.getTag();
        // holder=(ViewHolder)convertView.findViewById(R.id.TextViewIcon1)
    }
    holder.checkBoxListView.setTag(position);
    holder.textCountryName.setText(countryStringList.get(position));
    holder.textCountryPosition.setText(position + 1 + "/"
            + countryStringList.size());
    holder.icon.setImageResource((countryImageList.get(position)));
    if (ListViewController.checkStatusList.get(position).equalsIgnoreCase("present")) {
        holder.checkBoxListView.setVisibility(View.VISIBLE);
    } else {
        holder.checkBoxListView.setVisibility(View.GONE);
    }
    /*
     * holder.checkBoxListView.setOnCheckedChangeListener(new
     * OnCheckedChangeListener(){
     * 
     * @Override public void onCheckedChanged(CompoundButton buttonView,
     * boolean isChecked) { // TODO Auto-generated method stub
     * 
     * ListActivityImplementation listActivityImplementation = new
     * ListActivityImplementation(); //show("Checkbox");
     * ListActivityImplementation.countryStringList.remove(position);
     * ListActivityImplementation.countryImageList.remove(position);
     * ListActivityImplementation.lv.invalidateViews();
     * 
     * //ListActivityImplementation.show("Checkbox"); }
     * 
     * }) ;
     */
    holder.textCountryName.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            holder.textCountryPosition.setText(position + 1 + "/"
                    + countryStringList.size() + "clicked");
        }

    });
    holder.checkBoxListView
            .setOnCheckedChangeListener(new android.widget.CompoundButton.OnCheckedChangeListener() {

                @Override
                public void onCheckedChanged(CompoundButton buttonView,
                        boolean isChecked) {
                    MathHelper.showToast(context, buttonView.getTag()
                            + " clicked");
                }
            });
    return convertView;
}
}
class ViewHolder {
TextView textCountryName;
ImageView icon;
TextView textCountryPosition;
RelativeLayout relativeLayoutList;
CheckBox checkBoxListView;

}


谢谢您提供的信息,但我想知道如何在Base Adapter中使用Filterable接口,以便可以过滤搜索我的列表视图。 - hassanadnan

0

ArrayAdapter 是 BaseAdapter 的子类。

这里有 ArrayAdapter 的源代码。看一下它。

这应该能解决你的问题。


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