Details from list

activity_single_card_groupa.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="com.example.android.signs.SingleCardGroupA">

    <android.support.v4.widget.NestedScrollView

        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        tools:context="com.example.android.signs.SingleCardGroupA">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_margin="16dp"
            android:orientation="vertical">

            <ImageView
                android:id="@+id/image_activity2"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="top|center_horizontal"
                android:adjustViewBounds="true"
                android:scaleType="centerCrop" />

            <TextView
                android:id="@+id/text1_activity2"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="16dp"
                android:gravity="left"
                android:textSize="20sp"
                android:textStyle="bold" />

            <TextView
                android:id="@+id/text2_activity2"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="left"
                android:layout_marginTop="16dp"
                android:textSize="14sp" />
        </LinearLayout>
    </android.support.v4.widget.NestedScrollView>
    <LinearLayout
        android:layout_margin="16dp"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <Button
            android:id="@+id/previous"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="previous"/>

        <Button
            android:id="@+id/next"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="next"/>
    </LinearLayout>
</LinearLayout>

all_group_a_signs_list.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="16dp"
    android:id="@+id/parent_layout">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recyclerView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:scrollbars="vertical"/>

</RelativeLayout>

AllGroupASignsList.java

package com.example.android.signs;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.SearchView;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.inputmethod.EditorInfo;

import java.util.ArrayList;

public class AllGroupASignsList extends AppCompatActivity {
    private ArrayList<ExampleItem> mExampleList;


    private RecyclerView mRecyclerView;
    private ExampleAdapter mAdapter;
    private RecyclerView.LayoutManager mLayoutManager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.all_group_a_signs_list);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setTitle("Знаци от Група А");

        createExampleList();
        buildRecyclerView();
    }

    public void createExampleList() {

        mExampleList = new ArrayList<>();
        mExampleList.add(new ExampleItem(R.drawable.imageplaceholder, getString(R.string.A1_title), getString(R.string.A1_description)));
        mExampleList.add(new ExampleItem(R.drawable.imageplaceholder, getString(R.string.A2_title), getString(R.string.A2_description)));
        mExampleList.add(new ExampleItem(R.drawable.imageplaceholder, getString(R.string.A3_title), getString(R.string.A3_description)));
        mExampleList.add(new ExampleItem(R.drawable.imageplaceholder, getString(R.string.A4_title), getString(R.string.A4_description)));
        mExampleList.add(new ExampleItem(R.drawable.imageplaceholder, getString(R.string.A5_title), getString(R.string.A5_description)));
        mExampleList.add(new ExampleItem(R.drawable.imageplaceholder, getString(R.string.A6_title), getString(R.string.A6_description)));
        mExampleList.add(new ExampleItem(R.drawable.imageplaceholder, getString(R.string.A7_title), getString(R.string.A7_description)));
        mExampleList.add(new ExampleItem(R.drawable.imageplaceholder, getString(R.string.A8_title), getString(R.string.A8_description)));
        mExampleList.add(new ExampleItem(R.drawable.imageplaceholder, getString(R.string.A9_title), getString(R.string.A9_description)));
        mExampleList.add(new ExampleItem(R.drawable.imageplaceholder, getString(R.string.A10_title), getString(R.string.A10_description)));

    }

    public void buildRecyclerView() {

        mRecyclerView = findViewById(R.id.recyclerView);
        mRecyclerView.setHasFixedSize(true);
        mLayoutManager = new LinearLayoutManager(this);
        mAdapter = new ExampleAdapter(mExampleList);

        mRecyclerView.setLayoutManager(mLayoutManager);
        mRecyclerView.setAdapter(mAdapter);

        mAdapter.setOnItemClickListener(new ExampleAdapter.OnItemClickListener() {
            @Override
            public void onItemClick(int position) {
            Intent intent = new Intent(AllGroupASignsList.this, SingleCardGroupA.class);
            intent.putExtra("Example Item", mExampleList.get(position));
            startActivity(intent);
            }
        });
    }
    @Override
    public boolean onSupportNavigateUp() {
        finish();
        return true;
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu){
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.menu_group_a_signs, menu);

        MenuItem searchItem = menu.findItem(R.id.action_search);
        SearchView searchView = (SearchView) searchItem.getActionView();
        searchView.setImeOptions(EditorInfo.IME_ACTION_DONE);

       searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
           @Override
           public boolean onQueryTextSubmit(String s) {
               return false;
           }

           @Override
           public boolean onQueryTextChange(String newText) {
               mAdapter.getFilter().filter(newText);
               return false;
           }
       });
        return true;

    }
}

example_item.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:cardCornerRadius="5dp"
    app:cardElevation="5dp"
    app:contentPadding="10dp"
    android:layout_marginBottom="16dp">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_gravity="center"
        android:weightSum="100"
        >

    <ImageView
        android:id="@+id/imageSign"
        android:layout_weight="40"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:scaleType="centerCrop"
        android:adjustViewBounds="true"
        />

    <LinearLayout

        android:paddingLeft="16dp"
        android:layout_weight="60"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <TextView
            android:id="@+id/signName"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginBottom="10dp"
            android:text="Placeholder"
            android:textStyle="bold"
            android:maxLines="2"
            android:minLines="1"
            android:ellipsize="end"/>

        <TextView
            android:id="@+id/signDescription"
            android:layout_weight="60"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Placeholder"
            android:maxLines="3"
            android:minLines="1"
            android:ellipsize="end" />

        <LinearLayout
            android:id="@+id/buttonsLayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:gravity="right|bottom"
            >

            <Button
                android:id="@+id/openButton"
                android:minHeight="0dp"
                android:minWidth="0dp"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="@null"
                android:text="Отвори"
                android:textColor="@color/colorAccent"
                android:layout_marginRight="16dp"
                />

            <ImageButton
                android:id="@+id/heart"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="@null"

                />



        </LinearLayout>
    </LinearLayout>
    </LinearLayout>



</android.support.v7.widget.CardView>

ExampleAdapter.java

package com.example.android.signs;

import android.content.Context;
import android.content.Intent;
import android.support.annotation.NonNull;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.Filter;
import android.widget.Filterable;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import java.util.ArrayList;
import java.util.List;

public class ExampleAdapter extends RecyclerView.Adapter<ExampleAdapter.ExampleViewHolder> implements Filterable {

    private ArrayList<ExampleItem> mExampleList;
    private List<ExampleItem> mExampleListFull;
    private OnItemClickListener mListener;

    public interface OnItemClickListener {
        void onItemClick(int position);
    }

    public void setOnItemClickListener(OnItemClickListener listener) {
        mListener = listener;
    }

    public static class ExampleViewHolder extends RecyclerView.ViewHolder{
        public ImageView mImageView;
        public TextView mTextTitle;
        public TextView mTextDescription;





        public ExampleViewHolder(@NonNull View itemView, final OnItemClickListener listener) {
            super(itemView);
            mImageView = itemView.findViewById(R.id.imageSign);
            mTextTitle = itemView.findViewById(R.id.signName);
            mTextDescription = itemView.findViewById(R.id.signDescription);

            itemView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    if (listener != null) {
                        int position = getAdapterPosition();
                        if (position != RecyclerView.NO_POSITION) {
                            listener.onItemClick(position);

                        }
                    }
                }
            });
        }
    }

    public ExampleAdapter(ArrayList<ExampleItem> exampleList){

        mExampleList = exampleList;
        mExampleListFull = new ArrayList<>(exampleList);
    }
    @NonNull
    @Override
    public ExampleViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
            View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.example_item,parent, false);
            ExampleViewHolder evh = new ExampleViewHolder(v, mListener);
            return evh;
    }

    @Override
    public void onBindViewHolder(@NonNull ExampleViewHolder holder, int position) {
            ExampleItem currentItem = mExampleList.get(position);
            holder.mImageView.setImageResource(currentItem.getImageResource());
            holder.mTextTitle.setText(currentItem.getTextTitle());
            holder.mTextDescription.setText(currentItem.getmTextDescription());

    }

    @Override
    public int getItemCount() {
        return mExampleList.size();
    }


    public Filter getFilter(){
        return exampleFilter;
    }

    private Filter exampleFilter = new Filter() {
        @Override
        protected FilterResults performFiltering(CharSequence constraint) {
            List<ExampleItem> filteredList = new ArrayList<>();

            if (constraint == null || constraint.length() == 0){
                filteredList.addAll(mExampleListFull);
            } else {
                String filterPattern = constraint.toString().toLowerCase().trim();

                for(ExampleItem item : mExampleListFull){
                    if (item.getTextTitle().toLowerCase().contains(filterPattern) || item.getmTextDescription().toLowerCase().contains(filterPattern)){
                        filteredList.add(item);
                    }
                }
            }

            FilterResults results = new FilterResults();
            results.values = filteredList;

            return results;
        }

        @Override
        protected void publishResults(CharSequence constraint, FilterResults results) {

            mExampleList.clear();
            mExampleList.addAll((List)results.values);
            notifyDataSetChanged();
        }
    };
}

ExampleItem.java

package com.example.android.signs;

import android.os.Parcel;
import android.os.Parcelable;
import android.view.View;
import android.widget.Toast;

public class ExampleItem implements Parcelable {
    private int mImageResource;
    private String mTextTitle;
    private String mTextDescription;

    public ExampleItem(int imageResource, String textTitle, String textDescription) {
        mImageResource = imageResource;
        mTextTitle = textTitle;
        mTextDescription = textDescription;
    }


    protected ExampleItem(Parcel in) {
        mImageResource = in.readInt();
        mTextTitle = in.readString();
        mTextDescription = in.readString();
    }

    public static final Creator<ExampleItem> CREATOR = new Creator<ExampleItem>() {
        @Override
        public ExampleItem createFromParcel(Parcel in) {
            return new ExampleItem(in);
        }

        @Override
        public ExampleItem[] newArray(int size) {
            return new ExampleItem[size];
        }
    };

    public int getImageResource() {
        return mImageResource;
    }

    public String getTextTitle() {
        return mTextTitle;
    }

    public String getmTextDescription() {
        return mTextDescription;
    }

    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel dest, int flags) {
        dest.writeInt(mImageResource);
        dest.writeString(mTextTitle);
        dest.writeString(mTextDescription);

    }
}

SingleCardGroupA.java

package com.example.android.signs;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;

public class SingleCardGroupA extends AppCompatActivity {

    Button next;
    Button previous;
    private String position;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_single_card_groupa);


        Intent intent = getIntent();
        ExampleItem exampleItem = intent.getParcelableExtra("Example Item");

        int imageRes = exampleItem.getImageResource();
        String line1 = exampleItem.getTextTitle();
        String line2 = exampleItem.getmTextDescription();

        ImageView imageView = findViewById(R.id.image_activity2);
        imageView.setImageResource(imageRes);

        TextView textView1 = findViewById(R.id.text1_activity2);
        textView1.setText(line1);

        TextView textView2 = findViewById(R.id.text2_activity2);
        textView2.setText(line2);

        Button next = (Button) findViewById(R.id.next);
        Button previous = (Button) findViewById(R.id.previous);
    }


}