Android 具有自定义适配器的 ListView 中的 SearchView
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时间：2020-08-20 07:07:45 来源:igfitidea点击:
SearchView In ListView having a custom Adapter
提问by AndroidMech
Guys I am in need of some help.I have been trying to implement a SearchView in my project.But my project contains a listview with a custom adapter attached to it..I have searched many sites but all have examples implemented using an arrayadapter..Lets say I have an Employee class and it contains name and age fields..How to I filter the employees using their Name only..
伙计们，我需要一些帮助。我一直在尝试在我的项目中实现 SearchView。但是我的项目包含一个带有自定义适配器的列表视图。我已经搜索了许多站点，但都有使用 arrayadapter 实现的示例。 .假设我有一个 Employee 类，它包含姓名和年龄字段..如何仅使用他们的姓名过滤员工..
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;
}
}
and this is my adapter class that extends BaseAdapter..
这是我扩展 BaseAdapter 的适配器类。
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;
}
}
Thanks in Advance..
提前致谢..
回答by Haresh Chhelana
Try this way,hope this will help you...
试试这个方法，希望这对你有帮助...
activity_main.xml
活动_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>
row.xml
行.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/txtName"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/txtAge"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"/>
</LinearLayout>
MainActivity.java
主活动.java
public class MainActivity extends Activity implements SearchView.OnQueryTextListener
{
private SearchView mSearchView;
private ListView mListView;
private ArrayList<Employee> employeeArrayList;
private EmployeeAdapter employeeAdapter;
@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);
employeeArrayList=new ArrayList<Employee>();
employeeArrayList.add(new Employee("ABC", 24));
employeeArrayList.add(new Employee("ACB", 24));
employeeArrayList.add(new Employee("BVF", 28));
employeeArrayList.add(new Employee("BRT", 28));
employeeArrayList.add(new Employee("ANM", 23));
employeeAdapter=new EmployeeAdapter(MainActivity.this, employeeArrayList);
mListView.setAdapter(employeeAdapter);
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)) {
mListView.clearTextFilter();
} else {
mListView.setFilterText(newText);
}
return true;
}
@Override
public boolean onQueryTextSubmit(String query)
{
return false;
}
}
EmployeeAdapter.java
员工适配器.java
public class EmployeeAdapter extends BaseAdapter implements Filterable {
public Context context;
public ArrayList<Employee> employeeArrayList;
public ArrayList<Employee> orig;
public EmployeeAdapter(Context context, ArrayList<Employee> employeeArrayList) {
super();
this.context = context;
this.employeeArrayList = employeeArrayList;
}
public class EmployeeHolder
{
TextView name;
TextView age;
}
public Filter getFilter() {
return new Filter() {
@Override
protected FilterResults performFiltering(CharSequence constraint) {
final FilterResults oReturn = new FilterResults();
final ArrayList<Employee> results = new ArrayList<Employee>();
if (orig == null)
orig = employeeArrayList;
if (constraint != null) {
if (orig != null && orig.size() > 0) {
for (final Employee g : orig) {
if (g.getName().toLowerCase()
.contains(constraint.toString()))
results.add(g);
}
}
oReturn.values = results;
}
return oReturn;
}
@SuppressWarnings("unchecked")
@Override
protected void publishResults(CharSequence constraint,
FilterResults results) {
employeeArrayList = (ArrayList<Employee>) results.values;
notifyDataSetChanged();
}
};
}
public void notifyDataSetChanged() {
super.notifyDataSetChanged();
}
@Override
public int getCount() {
return employeeArrayList.size();
}
@Override
public Object getItem(int position) {
return employeeArrayList.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
EmployeeHolder holder;
if(convertView==null)
{
convertView=LayoutInflater.from(context).inflate(R.layout.row, parent, false);
holder=new EmployeeHolder();
holder.name=(TextView) convertView.findViewById(R.id.txtName);
holder.age=(TextView) convertView.findViewById(R.id.txtAge);
convertView.setTag(holder);
}
else
{
holder=(EmployeeHolder) convertView.getTag();
}
holder.name.setText(employeeArrayList.get(position).getName());
holder.age.setText(String.valueOf(employeeArrayList.get(position).getAge()));
return convertView;
}
}
Employee.java
雇员.java
public class Employee {
private String name;
private int age;
public Employee(String name,int age){
this.name = name;
this.age = age;
}
public String getName(){
return name;
}
public int getAge(){
return age;
}
}
回答by user6017633
Good answer is there, but still there are some issues(wrong position when onclick, serchview text overlay) as mentioned in comment section, so you can also do this by following way
很好的答案是有，但仍然存在一些问题（onclick 时的错误位置，serchview 文本覆盖）如评论部分所述，因此您也可以通过以下方式执行此操作
Reference for more info : searchview listview android
更多信息参考：searchview listview android
I have tested it and don't find any issue so far, If you find any, please mention in comment section.
我已经测试过了，目前没有发现任何问题，如果您发现任何问题，请在评论部分提及。
Model class: MovieNames.java
模型类：MovieNames.java
public class MovieNames {
private String movieName;
public MovieNames(String movieName) {
this.movieName = movieName;
}
public String getAnimalName() {
return this.movieName;
}
}
2 : listview_item.xml file :
2：listview_item.xml 文件：
<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>
ListViewAdapter.java class adapter for listview :
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(); } }MainActivity.java class :
import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.AdapterView; import android.widget.ListView; import android.widget.SearchView; import android.widget.Toast; import java.util.ArrayList; public class MainActivity extends AppCompatActivity implements SearchView.OnQueryTextListener { // Declare Variables private ListView list; private ListViewAdapter adapter; private SearchView editsearch; private String[] moviewList; public static ArrayList<MovieNames> movieNamesArrayList = new ArrayList<MovieNames>(); @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // Generate sample data moviewList = new String[]{"Xmen", "Titanic", "Captain America", "Iron man", "Rocky", "Transporter", "Lord of the rings", "The jungle book", "Tarzan","Cars","Shreck"}; // Locate the ListView in listview_main.xml list = (ListView) findViewById(R.id.listview); movieNamesArrayList = new ArrayList<>(); for (int i = 0; i < moviewList.length; i++) { MovieNames movieNames = new MovieNames(moviewList[i]); // Binds all strings into an array movieNamesArrayList.add(movieNames); } // Pass results to ListViewAdapter Class adapter = new ListViewAdapter(this); // Binds the Adapter to the ListView list.setAdapter(adapter); // Locate the EditText in listview_main.xml editsearch = (SearchView) findViewById(R.id.search); editsearch.setOnQueryTextListener(this); list.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { Toast.makeText(MainActivity.this, movieNamesArrayList.get(position).getAnimalName(), Toast.LENGTH_SHORT).show(); } }); } @Override public boolean onQueryTextSubmit(String query) { return false; } @Override public boolean onQueryTextChange(String newText) { String text = newText; adapter.filter(text); return false; } }
列表视图的 ListViewAdapter.java 类适配器：
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(); } }MainActivity.java 类：
import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.AdapterView; import android.widget.ListView; import android.widget.SearchView; import android.widget.Toast; import java.util.ArrayList; public class MainActivity extends AppCompatActivity implements SearchView.OnQueryTextListener { // Declare Variables private ListView list; private ListViewAdapter adapter; private SearchView editsearch; private String[] moviewList; public static ArrayList<MovieNames> movieNamesArrayList = new ArrayList<MovieNames>(); @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // Generate sample data moviewList = new String[]{"Xmen", "Titanic", "Captain America", "Iron man", "Rocky", "Transporter", "Lord of the rings", "The jungle book", "Tarzan","Cars","Shreck"}; // Locate the ListView in listview_main.xml list = (ListView) findViewById(R.id.listview); movieNamesArrayList = new ArrayList<>(); for (int i = 0; i < moviewList.length; i++) { MovieNames movieNames = new MovieNames(moviewList[i]); // Binds all strings into an array movieNamesArrayList.add(movieNames); } // Pass results to ListViewAdapter Class adapter = new ListViewAdapter(this); // Binds the Adapter to the ListView list.setAdapter(adapter); // Locate the EditText in listview_main.xml editsearch = (SearchView) findViewById(R.id.search); editsearch.setOnQueryTextListener(this); list.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { Toast.makeText(MainActivity.this, movieNamesArrayList.get(position).getAnimalName(), Toast.LENGTH_SHORT).show(); } }); } @Override public boolean onQueryTextSubmit(String query) { return false; } @Override public boolean onQueryTextChange(String newText) { String text = newText; adapter.filter(text); return false; } }
回答by Keshav Gera
Source Code
源代码
https://drive.google.com/open?id=0BzBKpZ4nzNzUOFlxeHhuWmF0Q1U
https://drive.google.com/open?id=0BzBKpZ4nzNzUOFlxeHhuWmF0Q1U
package example.abhiandroid.searchviewexample;
import android.database.Cursor;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.ListView;
import android.widget.SearchView;
import java.util.ArrayList;
public class SearchViewActivity extends AppCompatActivity implements SearchView.OnQueryTextListener {
// Declare Variables
ListView list;
ListViewAdapter adapter;
public static SearchView editsearch;
String[] animalNameList;
ArrayList<AnimalNames> arraylist = new ArrayList<AnimalNames>();
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_search);
// Generate sample data
animalNameList = new String[]{"Lion", "Tiger", "Dog",
"Cat", "Tortoise", "Rat", "Elephant", "Fox",
"Cow","Donkey","Monkey"};
// Locate the ListView in listview_main.xml
list = (ListView) findViewById(R.id.listview);
for (int i = 0; i < animalNameList.length; i++) {
AnimalNames animalNames = new AnimalNames(animalNameList[i]);
// Binds all strings into an array
arraylist.add(animalNames);
}
// Pass results to ListViewAdapter Class
adapter = new ListViewAdapter(this, arraylist);
// Binds the Adapter to the ListView
list.setAdapter(adapter);
// Locate the EditText in listview_main.xml
editsearch = (SearchView) findViewById(R.id.search);
editsearch.setOnQueryTextListener(this);
editsearch.setOnSuggestionListener(new SearchView.OnSuggestionListener() {
@Override
public boolean onSuggestionSelect(int position) {
return true;
}
@Override
public boolean onSuggestionClick(int position) {
Cursor cursor= editsearch.getSuggestionsAdapter().getCursor();
cursor.moveToPosition(position);
String suggestion =cursor.getString(2);//2 is the index of col containing suggestion name.
editsearch.setQuery(suggestion,true);//setting suggestion
return true;
}
});
}
@Override
public boolean onQueryTextSubmit(String query) {
Log.e("keshav","query ->"+query);
return false;
}
@Override
public boolean onQueryTextChange(String newText) {
String text = newText;
Log.e("keshav","newText ->"+newText);
adapter.filter(text);
return false;
}
}
package example.abhiandroid.searchviewexample;
import android.content.Context;
import android.util.Log;
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.List;
import java.util.Locale;
public class ListViewAdapter extends BaseAdapter {
// Declare Variables
Context mContext;
LayoutInflater inflater;
private List<AnimalNames> animalNamesList = null;
private ArrayList<AnimalNames> arraylist;
public ListViewAdapter(Context context, List<AnimalNames> animalNamesList) {
mContext = context;
this.animalNamesList = animalNamesList;
inflater = LayoutInflater.from(mContext);
this.arraylist = new ArrayList<AnimalNames>();
this.arraylist.addAll(animalNamesList);
}
public class ViewHolder {
TextView name;
}
@Override
public int getCount() {
return animalNamesList.size();
}
@Override
public AnimalNames getItem(int position) {
return animalNamesList.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.search_list_view_item, null);
// Locate the TextViews in search_list_view_itemiew_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(animalNamesList.get(position).getAnimalName());
view.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.e("keshav","click list item ->"+animalNamesList.get(position).getAnimalName());
SearchViewActivity.editsearch.setQuery(animalNamesList.get(position).getAnimalName(), false);
Log.e("keshav","click size ->"+animalNamesList.size());
// TOdo size always 1 Important See cs Electric Project in Holostik
Log.e("keshav","click size ->"+animalNamesList.get(0).getAnimalName());
}
});
return view;
}
// Filter Class
public void filter(String charText) {
charText = charText.toLowerCase(Locale.getDefault());
animalNamesList.clear();
if (charText.length() == 0) {
animalNamesList.addAll(arraylist);
} else {
for (AnimalNames wp : arraylist) {
if (wp.getAnimalName().toLowerCase(Locale.getDefault()).contains(charText)) {
animalNamesList.add(wp);
}
}
}
notifyDataSetChanged();
}
}
package example.abhiandroid.searchviewexample;
public class AnimalNames
{
private String animalName;
public AnimalNames(String animalName) {
this.animalName = animalName;
}
public String getAnimalName() {
return this.animalName;
}
}
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<SearchView
android:id="@+id/search"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:iconifiedByDefault="false">
<requestFocus />
</SearchView>
<ListView
android:id="@+id/listview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_below="@+id/search" />
</RelativeLayout>
list item.xml
<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/nameLabel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Animal : " />
<TextView
android:id="@+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toRightOf="@+id/nameLabel" />
</RelativeLayout>
Happy Coding
快乐编码
回答by SWAPDROiD
Menu : menu_doctor_list.xml
菜单：menu_doctor_list.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="@+id/action_search"
android:icon="@drawable/ic_search_white_24dp"
app:showAsAction="always|collapseActionView"
app:actionViewClass="android.support.v7.widget.SearchView"
android:title="Search"/>
</menu>
Activity :
活动 ：
public class ListActivity extends AppActivity implements SearchView.OnQueryTextListener {
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater menuInflater = getMenuInflater();
menuInflater.inflate(R.menu.menu_doctor_list, menu);
MenuItem searchItem = menu.findItem(R.id.action_search);
SearchView searchView = (SearchView) searchItem.getActionView();
searchView.setQueryHint("Search Doctor by Name or Specialization");
searchView.setOnQueryTextListener(this);
searchView.setOnCloseListener(this);
searchView.setIconified(false);
return true;
}
@Override
public boolean onQueryTextSubmit(String query) {
System.out.println("query = " + query);
doctorListAdapter.getFilter().filter(query);
return true;
}
@Override
public boolean onQueryTextChange(String newText) {
System.out.println("query = " + newText);
doctorListAdapter.getFilter().filter(newText);
return true;
}
}
Adapter :
适配器 ：
public class ListAdapter extends RecyclerView.Adapter<ListAdapter.BindingHolder> implements Filterable {
private List<DoctorInfo> mOriginalValues; // Original Values
private List<DoctorInfo> mDisplayedValues; // Values to be displayed use this in onBindViewHolder()
public DoctorListAdapter(Context context, List<DoctorInfo> appointmentList) {
this.mOriginalValues = appointmentList;
this.mDisplayedValues = appointmentList;
}
@Override
public Filter getFilter() {
Filter filter = new Filter() {
@SuppressWarnings("unchecked")
@Override
protected void publishResults(CharSequence constraint, FilterResults results) {
mDisplayedValues = (ArrayList<DoctorInfo>) results.values; // has the filtered values
notifyDataSetChanged(); // notifies the data with new filtered values
}
@Override
protected FilterResults performFiltering(CharSequence constraint) {
FilterResults results = new FilterResults(); // Holds the results of a filtering operation in values
ArrayList<DoctorInfo> FilteredArrList = new ArrayList<DoctorInfo>();
if (mOriginalValues == null) {
mOriginalValues = new ArrayList<DoctorInfo>(mDisplayedValues); // saves the original data in mOriginalValues
}
/********
*
* If constraint(CharSequence that is received) is null returns the mOriginalValues(Original) values
* else does the Filtering and returns FilteredArrList(Filtered)
*
********/
if (constraint == null || constraint.length() == 0) {
// set the Original result to return
results.count = mOriginalValues.size();
results.values = mOriginalValues;
} else {
constraint = constraint.toString().toLowerCase();
for (int i = 0; i < mOriginalValues.size(); i++) {
String data = mOriginalValues.get(i).getFirstname() + " " + mOriginalValues.get(i).getLastname();
if (data.toLowerCase().startsWith(constraint.toString())) {
FilteredArrList.add(mOriginalValues.get(i));
}
}
// set the Filtered result to return
results.count = FilteredArrList.size();
results.values = FilteredArrList;
}
return results;
}
};
return filter;
}
}
