public void setupSearchableWithButton() {
    // Set background color of the search view
    ((ViewGroup)m_SearchView.findViewById(android.support.v7.appcompat.R.id.search_mag_icon).
            getParent()).setBackgroundColor(Color.parseColor("#ffffff"));
    // Set default custom search of the search view button icon and look of the custom search view
    this.setDefaultSearchIcon(); this.setupIconifiedByDefault();
    // Set default search hint displayed in the search view's edit text view
    m_SearchView.setQueryHint("TYPE HERE...");
    // Set default query text and remove focus from the search view
    m_SearchView.setQuery("", false); getRootView().requestFocus();
    // Instantinate the search view object and set default action button click event listener
    m_SearchView.findViewById(android.support.v7.appcompat.R.id.search_mag_icon).
            setOnClickListener(new SearchableViewListener());
    // Instantinate the search view object
    ViewGroup llSearchView = ((ViewGroup)m_SearchView.findViewById(
            android.support.v7.appcompat.R.id.search_mag_icon).getParent());
    // Instantinate object of the text editable inside the search view
    EditText searchEditText = llSearchView.findViewById(
            android.support.v7.appcompat.R.id.search_src_text);
    // Remove the search view text editable default selection
    searchEditText.setSelected(false);
    // Set text editable click event listener
    searchEditText.setOnClickListener(new SearchableViewListener());
    // Set text editable onTextChange listener
    searchEditText.addTextChangedListener(new SearchableViewListener());
}

public class SearchableViewListener
            implements OnClickListener, TextWatcher {
        @Override
        public void onClick(View view) {
            // Check if the custom search view button was clicked
            if (android.support.v7.appcompat.R.
                    id.search_mag_icon == view.getId()) {
                // If so, perform a check if the default action bar icon was set
                if (!isDefaultIcon) {
                    // If not, set the default icon by invoking setDefaultSearchIcon() method
                    setDefaultSearchIcon();
                    // Terminate the onClick handler method execution
                    return;
                }
                // Invoke onClick(...) method from the main app's activity class
                m_ClickListener.onClick(view);
            }
            // Otherwise, set navigation-back search icon
            else setNavBackSearchIcon();
        }
        @Override
        public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
            // Invoke the beforeTextChange(...) method from app's activity class (e.g. its parent)
            m_TextWatcherListener.beforeTextChanged(charSequence, i, i1, i2);
        }
        @Override
        public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
<span Segoe UI",Arial,Sans-Serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-shadow: none; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;">                     // Set navigation-back icon and invoke the onTextChanged(...) method </span>
            <span Segoe UI",Arial,Sans-Serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-shadow: none; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;">// from app's activity class (e.g. its parent)</span>
            setNavBackSearchIcon(); m_TextWatcherListener.onTextChanged(charSequence, i, i1, i2);
        }
        @Override
        public void afterTextChanged(Editable editable) {
            // Perform a check if the editable string is empty
            if (editable.toString().isEmpty())
                // If so, set default search view icon
                setDefaultSearchIcon();
            // Invoke the afterTextChanged(...) method from its parent 
            m_TextWatcherListener.afterTextChanged(editable);
        }
    }

private void setupIconifiedByDefault() {
     // Disable the iconfied mode to make the search view fill the entire area horizontally
     m_SearchView.setIconified(false);
     m_SearchView.setIconifiedByDefault(false);
 }

private void setDefaultSearchIcon() {
    // Replace the default search view icon with the action button icon
    this.isDefaultIcon = true;
    this.replaceSearchIcon(R.drawable.ic_dehaze_white_24dp);
}

private void setNavBackSearchIcon() {
    // Check if the default icon was set
    if (this.isDefaultIcon == true) {
        // If so, replace search view icon with navigation-back icon
        this.isDefaultIcon = false;
        this.replaceSearchIcon(R.drawable.ic_arrow_back_black_24dp);
        // Run the search view icon animation
        this.setupAnimation();
    }
}

private void replaceSearchIcon(int resDefaultIcon) {
    // Instantinate search view button icon object and set the custom icon
    // by calling setImageDrawable method that accepts the icon object retrieved
    // from the app's resources by calling the context's getDrawable(...) method
    ((ImageView)m_SearchView.findViewById(android.support.v7.appcompat.R.id.search_mag_icon)).
            setImageDrawable(m_Context.getDrawable(resDefaultIcon));
    // Start animating icon
    this.setupAnimation();
}

private void setupAnimation() {
    // Instantinate search view icon object
    final ImageView searchIconView = m_SearchView.findViewById(
            android.support.v7.appcompat.R.id.search_mag_icon);
    // Compute the icon's width and height values
    int searchIconWidth = searchIconView.getWidth();
    int searchIconHeight = searchIconView.getHeight();
    // Instantinate RotateAnimation class object and specify the rotation params
    RotateAnimation searchIconAnimation = new RotateAnimation(0f, 360f,
            searchIconWidth / 2, searchIconHeight / 2);
    // Set animation interpolator
    searchIconAnimation.setInterpolator(new LinearInterpolator());
    // Set animation repeat count
    searchIconAnimation.setRepeatCount(Animation.INFINITE);
    // Set animation duration
    searchIconAnimation.setDuration(700);
    // Start animating the icon
    searchIconView.startAnimation(searchIconAnimation);
    // Perform a delay for 700ms after the icon animation ends
    new Handler().postDelayed(new Runnable() {
        @Override
        public void run() {
            searchIconView.setAnimation(null);
        }
    }, 700);
}

// Override the default findViewById method to be used to instantinate
// search view object
private SearchView findSearchViewById(int resId) {
    return ((Activity)m_Context).findViewById(resId);
}

public void setSearchButtonClickListener(@Nullable OnClickListener clickListener) {
    // Set click listener class object of its parent
    m_ClickListener = clickListener;
}
public void setTextWatchListener(@Nullable TextWatcher textWatchListener) {
    // Set text change watcher listener class object of its parent
    m_TextWatcherListener = textWatchListener;
}

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_airport);
    // Instantinating the drawer layout object
    m_DrawerLayout = findViewById(R.id.airport_drawer_layout);
    // Instantinating the navigation view object
    m_navigationView = findViewById(R.id.airport_navigation_view);
    // Instantinating our custom search view object
    m_searchableWithButtonView =
            new SearchableWithButtonView(AirportActivity.this, R.id.searchable);
    // Setting up our custom search view
    m_searchableWithButtonView.setupSearchableWithButton();
    // Adding the text change watcher listener
    m_searchableWithButtonView.setTextWatchListener(new SearchableWithButtonListener());
    // Adding the search view action button click event listener
    m_searchableWithButtonView.setSearchButtonClickListener(new SearchableWithButtonListener());
    // Setup app's drawer menu click event listener
    m_navigationView.setNavigationItemSelectedListener(m_NavigationBarListener);
    // ...

public class SearchableWithButtonListener implements View.OnClickListener, TextWatcher
    {
        @Override
        public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
        }
        @Override
        public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
        }
        @Override
        public void afterTextChanged(Editable editable) {
        }
        @Override
        public void onClick(View view) {
            // Perform a check if the app's drawer open
            if (!m_DrawerLayout.isDrawerOpen(GravityCompat.START))
                // If not, open the app's drawer
                m_DrawerLayout.openDrawer(GravityCompat.START);
        }
    }

private class NavigationBarListener implements
        NavigationView.OnNavigationItemSelectedListener
{
    // This method handles the navigation menu item click events
    public boolean onNavigationItemSelected(MenuItem menuItem) {
        // set item as selected to persist highlight
        menuItem.setChecked(true);
        //...
 
        if (m_DrawerLayout.isDrawerOpen(GravityCompat.START))
            m_DrawerLayout.closeDrawers();
        return true;
    }
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
    android:id="@+id/flights_fragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".FlightsFragment">
 
    <android.support.design.widget.TabLayout
        android:id="@+id/flights_destination_tabs"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:tabMaxWidth="0dp"
        app:tabMode="fixed"
        app:tabGravity="fill">
 
    <android.support.design.widget.TabItem
        android:id="@+id/arrivals_tab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:icon="@drawable/ic_flight_land_black_24dp"
        android:text="@string/arrivals_tab" />
 
    <android.support.design.widget.TabItem
        android:id="@+id/departures_tab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:icon="@drawable/ic_flight_takeoff_black_24dp"
        android:text="@string/departures_tab" />
 
    </android.support.design.widget.TabLayout>
 
    <android.support.v4.view.ViewPager
        android:id="@+id/flights_destination_pager"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>
 
    <requestFocus/>
</LinearLayout>

package com.epsilon.arthurvratz.airportapp;
import android.content.Context;
import android.net.Uri;
import android.os.Bundle;
import android.support.design.widget.TabLayout;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class FlightsFragment extends FlightsFragmentImpl
{
    private TabLayout m_TabLayout;
    private ViewPager m_ViewPager;
    final private TabSelectedListener
            m_TabSelListener = new TabSelectedListener();
    public ArrivalsFragment m_ArrivalsFragment;
    public DeparturesFragment m_DeparturesFragment;
    private class TabSelectedListener implements TabLayout.OnTabSelectedListener
    {
        @Override
        public void onTabSelected(TabLayout.Tab tab) {
            m_ViewPager.setCurrentItem(tab.getPosition());
        }
        @Override
        public void onTabUnselected(TabLayout.Tab tab) {
        }
        @Override
        public void onTabReselected(TabLayout.Tab tab) {
        }
    }
    private OnFragmentInteractionListener mListener;
    public FlightsFragment() {
        // Required empty public constructor
    }
    public static FlightsFragment newInstance() {
        return new FlightsFragment();
    }
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                Bundle savedInstanceState) {
        // Inflating the flights fragment view's object
        View FlightsFragmentView =
                    inflater.inflate(R.layout.fragment_flights, container, false);
        // Instantinating the tab layout object
        m_TabLayout = FlightsFragmentView.findViewById(R.id.flights_destination_tabs);
        // Instantinating view pager object
        m_ViewPager = FlightsFragmentView.findViewById(R.id.flights_destination_pager);
        // Instantinating the tab layout's pager adapter
        FlightsDestPagerAdapter pagerAdapter = new FlightsDestPagerAdapter(
              getChildFragmentManager(), m_TabLayout.getTabCount());
        // Instantinating the arrivals fragment object
        m_ArrivalsFragment = ArrivalsFragment.newInstance();
        // Instantinating the departures fragment object 
        m_DeparturesFragment = DeparturesFragment.newInstance();
        // Adding the arrivals and departure fragment objects to the view pager adapter
        pagerAdapter.add(m_ArrivalsFragment);
        pagerAdapter.add(m_DeparturesFragment);
        // Setting up the view pager adapter
        m_ViewPager.setAdapter(pagerAdapter);
        // Adding the generic page sliding event listener
        m_ViewPager.addOnPageChangeListener(
                new TabLayout.TabLayoutOnPageChangeListener(m_TabLayout));
        m_TabLayout.addOnTabSelectedListener(m_TabSelListener);
        return FlightsFragmentView;
    }
    public void onButtonPressed(Uri uri) {
        if (mListener != null) {
            mListener.onFragmentInteraction(uri);
        }
    }
    @Override
    public void onAttach(Context context) {
        super.onAttach(context);
        if (context instanceof OnFragmentInteractionListener) {
            mListener = (OnFragmentInteractionListener) context;
        } else {
            throw new RuntimeException(context.toString()
                    + " must implement OnFragmentInteractionListener");
        }
    }
    @Override
    public void onDetach() {
        super.onDetach();
        mListener = null;
    }
    @Override
    public void onFragmentInteraction(Uri uri) {
    }
    public interface OnFragmentInteractionListener {
        // TODO: Update argument type and name
        void onFragmentInteraction(Uri uri);
    }
}

package com.epsilon.arthurvratz.airportapp;
import android.content.Context;
import android.net.Uri;
import android.os.Bundle;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import java.util.ArrayList;
public class ArrivalsFragment extends android.support.v4.app.Fragment {
    public  RecyclerView m_ArrivalsRecyclerView;
    public ArrayList<AirportDataModel> m_ArrivalsDataSet;
    public FlightsFragment m_FlightsFragment;
    private OnFragmentInteractionListener mListener;
    public ArrivalsFragment() {
        // Instatinate the airport app's data model and generate set of random flights
        m_ArrivalsDataSet = new AirportDataModel().InitModel(20);
    }
    public static ArrivalsFragment newInstance() {
        return new ArrivalsFragment();
    }
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        // Inflate the flights fragment layout
        View ArrivalsView =  inflater.inflate(R.layout.fragment_arrivals, container, false);
        // Get flights fragment layout object
        m_FlightsFragment =
                (FlightsFragment) this.getParentFragment();
        // Instantinate arrivals recycler view object
        m_ArrivalsRecyclerView =
                ArrivalsView.findViewById(R.id.arrivals_recycler_view);
        // Invoke setupFlightsRecyclerView method, which is the member of flight fragment class
        m_FlightsFragment.setupFlightsRecyclerView(m_ArrivalsRecyclerView, m_ArrivalsDataSet);
        return ArrivalsView;
    }
    // TODO: Rename method, update argument and hook method into UI event
    public void onButtonPressed(Uri uri) {
        if (mListener != null) {
            mListener.onFragmentInteraction(uri);
        }
    }
    @Override
    public void onAttach(Context context) {
        super.onAttach(context);
        if (context instanceof OnFragmentInteractionListener) {
            mListener = (OnFragmentInteractionListener) context;
        } else {
            throw new RuntimeException(context.toString()
                    + " must implement OnFragmentInteractionListener");
        }
    }
    @Override
    public void onDetach() {
        super.onDetach();
        mListener = null;
    }
    public interface OnFragmentInteractionListener {
        // TODO: Update argument type and name
        void onFragmentInteraction(Uri uri);
    }
}