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我正在尝试对 Android 进行列表视图搜索。我发现很多教程都是这样做的,搜索栏放在顶部,如果你在框中输入,结果就会被过滤掉。

在我的应用程序中,我想在过滤完成后单击给定项目,我已经实现了 setOnItemClickListener。问题是,在过滤了我要打开的每个类的位置后,会打开不正确的页面。我无法找到解决方案....

这是java代码:

package com.equations.search;

import java.util.ArrayList;
import java.util.HashMap;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.view.WindowManager;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;

public class EquationsSearch extends Activity {
// List view
private ListView lv;

// Listview Adapter
ArrayAdapter<String> adapter;

// Search EditText
EditText inputSearch;

// ArrayList for Listview
ArrayList<HashMap<String, String>> productList;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.equations_search);

    // Listview Data
    final String products[] = { "Dell Inspiron", "HTC One X",
            "HTC Wildfire S", "HTC Sense", "HTC Sensation XE" };

    lv = (ListView) findViewById(R.id.list_view);
    inputSearch = (EditText) findViewById(R.id.inputSearch);

    // Adding items to listview
    adapter = new ArrayAdapter<String>(this,
            R.layout.equations_search_list, R.id.product_name, products);
    lv.setAdapter(adapter);

    /**
     * Enabling Search Filter
     * */

    inputSearch.addTextChangedListener(new TextWatcher() {

        public void onTextChanged(CharSequence cs, int arg1, int arg2,
                int arg3) {
            // When user changed the Text
            EquationsSearch.this.adapter.getFilter().filter(cs);
        }

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

        }

        public void afterTextChange(Editable arg0) {
            // TODO Auto-generated method stub

        }

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

        }
    });
    lv.setOnItemClickListener(new OnItemClickListener() {
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            // if(position == 1)
            String openClass = products[position];
            if (openClass.equals("HTC Wildfire S")) {
                // code specific to first list item
                Intent myIntent = new Intent(view.getContext(), A6262.class);
                startActivityForResult(myIntent, 0);
            }
        }
    });

}
}

这是xml equations_search.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >

<!-- Editext for Search -->
<EditText android:id="@+id/inputSearch"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:hint="Search products.."
    android:inputType="textVisiblePassword"/>

<!-- List View -->
<ListView
    android:id="@+id/list_view"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content" />

</LinearLayout>

和 equations_search_list.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >

<!-- Single ListItem -->

<!-- Product Name -->
<TextView android:id="@+id/product_name"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:padding="10dip"
    android:textSize="16dip"
    android:textStyle="bold"/>    

</LinearLayout>

先感谢您。

4

2 回答 2

4

而不是products[position],使用adapter.getItem(position). 当ListView不在过滤器模式下时,这两件事将是相同的。但是,在过滤模式下,getItem()会考虑过滤。

于 2013-02-24T22:08:50.243 回答
1

由于过滤,ListAdapter 将改变它当前显示的项目的相对位置。您应该始终使用getItem(position)来检索正确的项目。

于 2013-02-24T22:09:16.617 回答