Android ListView中具有自定义适配器的SearchView
伙计们,我需要一些帮助。我一直在尝试在我的项目中实现一个SearchView。但是我的项目包含一个带有自定义适配器的listview。我搜索了很多网站,但都有使用arrayadapter实现的示例。假设我有一个Employee类,它包含名称和年龄字段。如何筛选仅使用其姓名的员工Android ListView中具有自定义适配器的SearchView,android,android-listview,baseadapter,searchview,Android,Android Listview,Baseadapter,Searchview,伙计们,我需要一些帮助。我一直在尝试在我的项目中实现一个SearchView。但是我的项目包含一个带有自定义适配器的listview。我搜索了很多网站,但都有使用arrayadapter实现的示例。假设我有一个Employee类,它包含名称和年龄字段。如何筛选仅使用其姓名的员工 public class MainActivity extends Activity implements SearchView.OnQueryTextListener { SearchView mSearchView;
public class MainActivity extends Activity implements SearchView.OnQueryTextListener
{
SearchView mSearchView;
ListView mListView;
//String mStrings[]= {"abc","def","efg","ghi","ijk","apple","agxhsdgc","abbbcc"};
ArrayList<Employee> emp_list=null;
EmployeeAdapter emp_adapter=null;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mSearchView=(SearchView) findViewById(R.id.searchView1);
mListView=(ListView) findViewById(R.id.listView1);
emp_list=new ArrayList<Employee>();
emp_list.add(new Employee("ABC", 24));
emp_list.add(new Employee("ACB", 24));
emp_list.add(new Employee("BVF", 28));
emp_list.add(new Employee("BRT", 28));
emp_list.add(new Employee("ANM", 23));
emp_adapter=new EmployeeAdapter(MainActivity.this, emp_list);
mListView.setAdapter(emp_adapter);
// mListView.setAdapter(new ArrayAdapter<String>(this,
// android.R.layout.simple_list_item_1,
// mStrings));
mListView.setTextFilterEnabled(true);
setupSearchView();
}
private void setupSearchView()
{
mSearchView.setIconifiedByDefault(false);
mSearchView.setOnQueryTextListener(this);
mSearchView.setSubmitButtonEnabled(true);
mSearchView.setQueryHint("Search Here");
}
@Override
public boolean onQueryTextChange(String newText)
{
if (TextUtils.isEmpty(newText.toString())) {
mListView.clearTextFilter();
} else {
mListView.setFilterText(newText.toString());
}
return true;
}
@Override
public boolean onQueryTextSubmit(String query)
{
return false;
}
}
<SearchView
android:id="@+id/searchView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<ListView
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"/>
</LinearLayout>
公共类MainActivity扩展活动实现SearchView.OnQueryTextListener
{
搜索视图;
列表视图;
//字符串mStrings[]={“abc”、“def”、“efg”、“ghi”、“ijk”、“apple”、“agxhsdgc”、“abbbcc”};
ArrayList emp_list=null;
EmployeeAdapter emp_adapter=null;
@凌驾
创建时受保护的void(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mSearchView=(SearchView)findViewById(R.id.searchView1);
mListView=(ListView)findViewById(R.id.listView1);
emp_list=new ArrayList();
emp_列表添加(新员工(“ABC”,24));
emp_列表添加(新员工(“ACB”,24));
emp_列表添加(新员工(“BVF”,28));
emp_列表添加(新员工(“BRT”,28));
emp_列表添加(新员工(“ANM”,23));
emp_adapter=新员工适配器(MainActivity.this,emp_列表);
setAdapter(emp_适配器);
//mListView.setAdapter(新阵列适配器(此,
//android.R.layout.simple\u list\u item\u 1,
//mStrings);
mListView.setTextFilterEnabled(true);
setupSearchView();
}
私有void setupSearchView()
{
mSearchView.setIconifiedByDefault(false);
mSearchView.setOnQueryTextListener(此);
mSearchView.setSubmitButtonEnabled(true);
mSearchView.setQueryHint(“在此处搜索”);
}
@凌驾
公共布尔onQueryTextChange(字符串newText)
{
if(TextUtils.isEmpty(newText.toString())){
mListView.clearTextFilter();
}否则{
mListView.setFilterText(newText.toString());
}
返回true;
}
@凌驾
公共布尔值onQueryTextSubmit(字符串查询)
{
返回false;
}
}
这是我的适配器类,它扩展了BaseAdapter
public class EmployeeAdapter extends BaseAdapter {
Context ctx;
ArrayList<Employee> emp_list;
LayoutInflater linf=null;
EmployeeHolder holder=null;
public EmployeeAdapter(Context ctx, ArrayList<Employee> emp_list) {
super();
this.ctx = ctx;
this.emp_list = emp_list;
linf=(LayoutInflater) ctx.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public class EmployeeHolder
{
TextView name;
TextView age;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return emp_list.size();
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return emp_list.get(position);
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
if(convertView==null)
{
convertView=linf.inflate(R.layout.row, parent, false);
holder=new EmployeeHolder();
holder.name=(TextView) convertView.findViewById(R.id.name);
holder.age=(TextView) convertView.findViewById(R.id.age);
convertView.setTag(holder);
}
else
{
holder=(EmployeeHolder) convertView.getTag();
}
Employee e=(Employee) getItem(position);
holder.name.setText(e.getName());
holder.age.setText(String.valueOf(e.getAge()));
return convertView;
}
}
<SearchView
android:id="@+id/searchView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<ListView
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"/>
</LinearLayout>
公共类EmployeeAdapter扩展了BaseAdapter{
上下文ctx;
ArrayList emp_列表;
LAYOUTINER linf=null;
EmployeeHolder=null;
公共雇员适配器(上下文ctx、阵列列表emp_列表){
超级();
this.ctx=ctx;
this.emp_list=emp_list;
linf=(LayoutInflater)ctx.getSystemService(Context.LAYOUT\u充气机\u服务);
}
公营雇员
{
文本视图名称;
文本视图年龄;
}
@凌驾
public int getCount(){
//TODO自动生成的方法存根
返回emp_list.size();
}
@凌驾
公共对象getItem(int位置){
//TODO自动生成的方法存根
返回emp_list.get(位置);
}
@凌驾
公共长getItemId(int位置){
//TODO自动生成的方法存根
返回位置;
}
@凌驾
公共视图getView(int位置、视图转换视图、视图组父视图){
//TODO自动生成的方法存根
if(convertView==null)
{
convertView=线性充气(R.layout.row,父级,false);
holder=新员工holder();
holder.name=(TextView)convertView.findViewById(R.id.name);
holder.age=(TextView)convertView.findViewById(R.id.age);
convertView.setTag(支架);
}
其他的
{
holder=(EmployeeHolder)convertView.getTag();
}
员工e=(员工)获取项目(职位);
holder.name.setText(e.getName());
holder.age.setText(String.valueOf(e.getAge());
返回视图;
}
}
提前谢谢。试试这个方法,希望这能帮助你
<SearchView
android:id="@+id/searchView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<ListView
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"/>
</LinearLayout>
活动\u main.xml
<SearchView
android:id="@+id/searchView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<ListView
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"/>
</LinearLayout>
很好的答案是存在的,但仍然存在一些问题(onclick时位置错误,serchview文本覆盖),如注释部分所述,所以您也可以通过以下方式来实现
<SearchView
android:id="@+id/searchView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<ListView
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"/>
</LinearLayout>
有关更多信息,请参阅:
<SearchView
android:id="@+id/searchView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<ListView
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"/>
</LinearLayout>
我已经测试了它,到目前为止没有发现任何问题,如果您发现任何问题,请在评论部分提及
<SearchView
android:id="@+id/searchView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<ListView
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"/>
</LinearLayout>
模型类:MovieNames.java
<SearchView
android:id="@+id/searchView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<ListView
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"/>
</LinearLayout>
public class MovieNames {
private String movieName;
public MovieNames(String movieName) {
this.movieName = movieName;
}
public String getAnimalName() {
return this.movieName;
}
}
2:listview_item.xml文件:
<SearchView
android:id="@+id/searchView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<ListView
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"/>
</LinearLayout>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="10dp">
<TextView
android:id="@+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</RelativeLayout>
<SearchView
android:id="@+id/searchView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<ListView
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"/>
</LinearLayout>
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.Locale;
public class ListViewAdapter extends BaseAdapter {
// Declare Variables
Context mContext;
LayoutInflater inflater;
private ArrayList<MovieNames> arraylist;
public ListViewAdapter(Context context ) {
mContext = context;
inflater = LayoutInflater.from(mContext);
this.arraylist = new ArrayList<MovieNames>();
this.arraylist.addAll(MainActivity.movieNamesArrayList);
}
public class ViewHolder {
TextView name;
}
@Override
public int getCount() {
return MainActivity.movieNamesArrayList.size();
}
@Override
public MovieNames getItem(int position) {
return MainActivity.movieNamesArrayList.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
public View getView(final int position, View view, ViewGroup parent) {
final ViewHolder holder;
if (view == null) {
holder = new ViewHolder();
view = inflater.inflate(R.layout.listview_item, null);
// Locate the TextViews in listview_item.xml
holder.name = (TextView) view.findViewById(R.id.name);
view.setTag(holder);
} else {
holder = (ViewHolder) view.getTag();
}
// Set the results into TextViews
holder.name.setText(MainActivity.movieNamesArrayList.get(position).getAnimalName());
return view;
}
// Filter Class
public void filter(String charText) {
charText = charText.toLowerCase(Locale.getDefault());
MainActivity.movieNamesArrayList.clear();
if (charText.length() == 0) {
MainActivity.movieNamesArrayList.addAll(arraylist);
} else {
for (MovieNames wp : arraylist) {
if (wp.getAnimalName().toLowerCase(Locale.getDefault()).contains(charText)) {
MainActivity.movieNamesArrayList.add(wp);
}
}
}
notifyDataSetChanged();
}
}
导入android.content.Context;
导入android.view.LayoutInflater;
导入android.view.view;
导入android.view.ViewGroup;
导入android.widget.BaseAdapter;
导入android.widget.TextView;
导入java.util.ArrayList;
导入java.util.Locale;
公共类ListViewAdapter扩展了BaseAdapter{
//声明变量
语境;
充气机;
私有ArrayList ArrayList;
公共ListViewAdapter(上下文){
mContext=上下文;
充气器=从(mContext)开始的充气器;
this.arraylist=新的arraylist();
this.arraylist.addAll(MainActivity.movieNamesArrayList);
}
公共类视图持有者{
文本视图名称;
}
@凌驾
public int getCount(){
返回MainActivity.movieNamesArrayList.size();
}
@凌驾
公共MovieNames getItem(内部位置){
返回MainActivity.movieNamesArrayList.get(位置);
}
@凌驾
公共长getItemId(int位置){
返回位置;
}
公共视图getView(最终整数位置、视图视图、视图组父视图){
最终持票人;
如果(视图==null){
holder=新的ViewHolder();
视图=充气机。充气(R.layout.listview_项,空);
//在listview_item.xml中找到文本视图
holder.name=(TextView)view.findViewById(R.id.name);
视图.设置标签(支架);
}否则{
holder=(ViewHolder)view.getTag();