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SearchView en ListView con un adaptador personalizado

Question

Chicos, estoy necesitando algo de ayuda. He estado tratando de implementar una SearchView en mi proyecto. Pero mi proyecto contiene una vista de lista con un adaptador personalizado adjunto. He buscado muchos sitios, pero todos tienen ejemplos implementados usando un arrayadapter. .Dijimos que tengo una clase de empleado y contiene campos de nombre y edad ... Cómo puedo filtrar a los empleados usando solo su nombre.

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;
}
}

y esta es mi clase de adaptador que extiende 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;
}
}

Gracias por adelantado..

Answer 1

La buena respuesta está ahí, pero todavía hay algunos problemas (posición incorrecta al hacer clic en el botón, superposición de texto de serchview) como se menciona en la sección de comentarios, por lo que también puede hacer esto de manera siguiente.

Referencia para obtener más información: searchview listview android

Lo he probado y no encuentro ningún problema hasta el momento. Si encuentra alguno, mencione en la sección de comentarios.

Clase de modelo: MovieNames.java

public class MovieNames {
private String movieName;
public MovieNames(String movieName) {
this.movieName = movieName;
}
public String getAnimalName() {
return this.movieName;
}
}

2: archivo listview_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/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</RelativeLayout>

3. Adaptador de clase ListViewAdapter.java para 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();
   }
   }

4. Clase MainActivity.java:

    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;
   }
   }

Answer 2

Pruébalo de esta manera, espero que esto te ayude ...

activity_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

<?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

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

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;
}
}

Empleado.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;
}
}

Answer 3

Código fuente

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

Answer 4

Menú: 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>

Actividad :

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;
}
}

Adaptador:

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;
}
}