SearchView en ListView con un adaptador personalizado

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 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(); 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(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 emp_list; LayoutInflater linf=null; EmployeeHolder holder=null; public EmployeeAdapter(Context ctx, ArrayList 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..

Pruébalo de esta manera, espero que esto te ayude …

activity_main.xml

     

row.xml

 < ?xml version="1.0" encoding="utf-8"?>     

MainActivity.java

 public class MainActivity extends Activity implements SearchView.OnQueryTextListener { private SearchView mSearchView; private ListView mListView; private ArrayList 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(); 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 employeeArrayList; public ArrayList orig; public EmployeeAdapter(Context context, ArrayList 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 results = new ArrayList(); 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) 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; } } 

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:

    
  1. 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 arraylist; public ListViewAdapter(Context context ) { mContext = context; inflater = LayoutInflater.from(mContext); this.arraylist = new ArrayList(); 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(); } } 
  2. 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 movieNamesArrayList = new ArrayList(); @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; } } 

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 arraylist = new ArrayList(); @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 animalNamesList = null; private ArrayList arraylist; public ListViewAdapter(Context context, List animalNamesList) { mContext = context; this.animalNamesList = animalNamesList; inflater = LayoutInflater.from(mContext); this.arraylist = new ArrayList(); 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; } }       list item.xml     

Happy Coding

Menú: menu_doctor_list.xml

 < ?xml version="1.0" encoding="utf-8"?>    

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 implements Filterable { private List mOriginalValues; // Original Values private List mDisplayedValues; // Values to be displayed use this in onBindViewHolder() public DoctorListAdapter(Context context, List 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) 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 FilteredArrList = new ArrayList(); if (mOriginalValues == null) { mOriginalValues = new ArrayList(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; } }