Initial commit

app/.gitignore

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+/build

app/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 25
+    buildToolsVersion "25.0.2"
+    defaultConfig {
+        applicationId "com.kauron.newssarcher"
+        minSdkVersion 16
+        targetSdkVersion 25
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        vectorDrawables.useSupportLibrary = true
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
+        exclude group: 'com.android.support', module: 'support-annotations'
+    })
+    compile 'com.android.support:appcompat-v7:25.3.1'
+    compile 'com.android.support.constraint:constraint-layout:1.0.2'
+    compile 'com.android.support:support-v4:25.3.1'
+    compile 'com.android.support:support-vector-drawable:25.3.1'
+    testCompile 'junit:junit:4.12'
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in /home/carlos/linux/Android/Sdk/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

app/src/androidTest/java/com/kauron/newssarcher/ExampleInstrumentedTest.java

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+package com.kauron.newssarcher;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumentation test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() throws Exception {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+
+        assertEquals("com.kauron.newssarcher", appContext.getPackageName());
+    }
+}

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.kauron.newssarcher">
+
+    <uses-permission android:name="android.permission.INTERNET" />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:windowSoftInputMode="adjustResize"
+        android:theme="@style/AppTheme">
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity
+            android:name=".SettingsActivity"
+            android:label="@string/title_activity_settings"
+            android:parentActivityName=".MainActivity">
+            <meta-data
+                android:name="android.support.PARENT_ACTIVITY"
+                android:value="com.kauron.newssarcher.MainActivity" />
+        </activity>
+    </application>
+
+</manifest>

app/src/main/java/com/kauron/newssarcher/MainActivity.java

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+package com.kauron.newssarcher;
+
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.preference.PreferenceManager;
+import android.support.v7.app.AlertDialog;
+import android.support.v7.app.AppCompatActivity;
+import android.view.KeyEvent;
+import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.inputmethod.EditorInfo;
+import android.widget.AdapterView;
+import android.widget.Button;
+import android.widget.CheckBox;
+import android.widget.EditText;
+import android.widget.ListView;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import java.util.ArrayList;
+
+public class MainActivity extends AppCompatActivity {
+    private EditText editText;
+    private CheckBox stemmingCheck, stopwordsCheck;
+    private QueryAdapter mAdapter;
+    private ArrayList<Query> queries;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        queries = new ArrayList<>();
+        ListView listView = (ListView) findViewById(R.id.listView);
+        editText = (EditText) findViewById(R.id.editText);
+        stemmingCheck = (CheckBox) findViewById(R.id.stemmingCheck);
+        stopwordsCheck = (CheckBox) findViewById(R.id.stopwordsCheck);
+
+        editText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
+            @Override
+            public boolean onEditorAction(TextView textView, int i, KeyEvent keyEvent) {
+                if (i == EditorInfo.IME_ACTION_SEARCH) {
+                    onButtonClick(null);
+                    return true;
+                }
+                return false;
+            }
+        });
+
+        mAdapter = new QueryAdapter(this, queries);
+        listView.setAdapter(mAdapter);
+        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
+            @Override
+            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
+                if (queries.get(i).hasAnswer()) {
+                    Toast.makeText(adapterView.getContext(), R.string.no_answer_yet,
+                            Toast.LENGTH_LONG).show();
+                    return;
+                }
+
+                LayoutInflater inflater= LayoutInflater.from(adapterView.getContext());
+                View mView=inflater.inflate(R.layout.my_dialog, null);
+
+                TextView answerView = (TextView) mView.findViewById(R.id.answer_text);
+                TextView shortAnswerView = (TextView) mView.findViewById(R.id.shortanswer_text);
+                TextView optionsView = (TextView) mView.findViewById(R.id.options_text);
+
+                answerView.setText(queries.get(i).getAnswer());
+                shortAnswerView.setText(queries.get(i).getShortAnswer());
+                optionsView.setText(queries.get(i).getOptions());
+
+                final int[] position = new int[] {i};
+
+                AlertDialog.Builder alertDialog = new AlertDialog.Builder(adapterView.getContext());
+                alertDialog.setTitle(queries.get(i).getQuery());
+                alertDialog.setView(mView);
+                alertDialog.setPositiveButton(R.string.close, null);
+                alertDialog.setNeutralButton(R.string.copy_query, new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialogInterface, int i) {
+                        editText.setText("");
+                        editText.append(queries.get(position[0]).getQuery());
+                        dialogInterface.dismiss();
+                    }
+                });
+                AlertDialog alert = alertDialog.create();
+                alert.show();
+            }
+        });
+        listView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
+            @Override
+            public boolean onItemLongClick(AdapterView<?> adapterView, View view, int i, long l) {
+                editText.getText().clear();
+                editText.append(queries.get(i).getQuery());
+                return false;
+            }
+        });
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        MenuInflater inflater = getMenuInflater();
+        inflater.inflate(R.menu.menu, menu);
+        return true;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        // Handle item selection
+        switch (item.getItemId()) {
+            case R.id.menu_settings:
+                Intent intent = new Intent(this, SettingsActivity.class);
+                startActivity(intent);
+                return true;
+            default:
+                return super.onOptionsItemSelected(item);
+        }
+    }
+
+    public void onButtonClick(View view) {
+        // connect to the server
+        String s = editText.getText().toString();
+        if (s.isEmpty())
+            return;
+        SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(this);
+        String endpoint = sharedPref.getString("pref_endpoint", "kauron.ddns.net");
+        int port = Integer.valueOf(sharedPref.getString("pref_port", "2048"));
+
+        Query q = new Query(s, endpoint, port, stopwordsCheck.isChecked(), stemmingCheck.isChecked(), this);
+        new QueryTask().execute(q);
+        queries.add(0, q);
+        mAdapter.notifyDataSetChanged();
+        editText.setText("");
+        editText.requestFocus();
+    }
+
+    public void onSymbolClick(View view) {
+        editText.append(((Button)view).getText().toString());
+    }
+
+    public void onBoolClick(View view) {
+        String s = ((Button)view).getText().toString() + ' ';
+        String text = editText.getText().toString();
+        if (!text.isEmpty() && text.charAt(text.length() - 1) != ' ')
+            s = ' ' + s;
+        editText.append(s);
+    }
+
+    public void onFieldClick(View view) {
+        String s = ((Button)view).getText().toString();
+        String text = editText.getText().toString();
+        if (!text.isEmpty() && text.charAt(text.length() - 1) != ' ')
+            s = ' ' + s;
+        editText.append(s);
+    }
+
+
+    private class QueryTask extends AsyncTask<Query, Void, Void> {
+        @Override
+        protected Void doInBackground(Query... queries) {
+            Query q  = queries[0];
+            String message = q.getQuery() + q.getShortOptions();
+
+            TCPClient mTcpClient = new TCPClient(message, q.getEndpoint(), new TCPClient.OnMessageReceived() {
+                @Override
+                //here the messageReceived method is implemented
+                public void messageReceived(String response) {
+                    MainActivity.this.queries.get(0).setAnswer(response);
+                }
+            });
+            mTcpClient.run();
+            return null;
+        }
+
+        @Override
+        protected void onPostExecute(Void aVoid) {
+            mAdapter.notifyDataSetChanged();
+        }
+    }
+}

app/src/main/java/com/kauron/newssarcher/Query.java

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+package com.kauron.newssarcher;
+
+import android.content.Context;
+
+class Query {
+    private final String query;
+    private String answer;
+    private final boolean noStopwords;
+    private final boolean stemming;
+    private final Context context;
+    private final String host;
+    private final int port;
+
+    Query(String query, String host, int port, boolean noStopwords, boolean stemming, Context context) {
+        this.query = query;
+        this.noStopwords = noStopwords;
+        this.stemming = stemming;
+        this.context = context;
+        this.host = host;
+        this.port = port;
+    }
+
+    String getEndpoint() {
+        return host + ":" + port;
+    }
+
+    String getQuery() {
+        return query;
+    }
+
+    String getAnswer() {
+        return answer;
+    }
+
+    String getOptions() {
+        return String.format("Stemming (%s), Remove stopwords (%s)", stemming ? "yes" : "no",
+                noStopwords ? "yes" : "no");
+    }
+
+    String getShortOptions() {
+        return (stemming ? " -s" : "") + (noStopwords ? " -n" : "");
+    }
+
+    String getShortAnswer() {
+        if (answer == null)
+            return context.getString(R.string.no_answer_yet);
+        else
+            return answer.substring(answer.lastIndexOf('\n') + 1);
+    }
+
+    void setAnswer(String answer) {
+        this.answer = answer;
+    }
+
+    boolean hasAnswer() {
+        return answer == null;
+    }
+}

app/src/main/java/com/kauron/newssarcher/QueryAdapter.java

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+package com.kauron.newssarcher;
+
+import android.content.Context;
+import android.support.annotation.NonNull;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.TextView;
+
+import java.util.ArrayList;
+
+class QueryAdapter extends ArrayAdapter<Query> {
+
+    QueryAdapter(@NonNull Context context, @NonNull ArrayList<Query> objects) {
+        super(context, R.layout.query_list_item, objects);
+    }
+
+    @NonNull
+    @Override
+    public View getView(int position, View convertView, @NonNull ViewGroup parent) {
+        // Get the data item for this position
+        Query q = getItem(position);
+
+        LayoutInflater inflater = LayoutInflater.from(getContext());
+        if (convertView == null)
+            convertView = inflater.inflate(R.layout.query_list_item, parent, false);
+        TextView query   = (TextView) convertView.findViewById(R.id.query_text);
+        TextView options = (TextView) convertView.findViewById(R.id.options_text);
+        TextView result  = (TextView) convertView.findViewById(R.id.result_text);
+
+        if (q != null) {
+            query.setText(q.getQuery());
+            options.setText(q.getOptions());
+            result.setText(q.getShortAnswer());
+        }
+
+        // Return the completed view to render on screen
+        return convertView;
+    }
+}

app/src/main/java/com/kauron/newssarcher/SettingsActivity.java

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+package com.kauron.newssarcher;
+
+import android.os.Bundle;
+import android.preference.PreferenceActivity;
+import android.preference.PreferenceFragment;
+
+public class SettingsActivity extends PreferenceActivity {
+
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // Display the fragment as the main content.
+        getFragmentManager().beginTransaction()
+                .replace(android.R.id.content, new SettingsFragment())
+                .commit();
+    }
+
+
+    public static class SettingsFragment extends PreferenceFragment {
+        @Override
+        public void onCreate(Bundle savedInstanceState) {
+            super.onCreate(savedInstanceState);
+
+            // Load the preferences from an XML resource
+            addPreferencesFromResource(R.xml.pref_general);
+        }
+    }
+}

app/src/main/java/com/kauron/newssarcher/TCPClient.java

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+package com.kauron.newssarcher;
+
+import android.util.Log;
+
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.InputStreamReader;
+import java.io.OutputStreamWriter;
+import java.io.PrintWriter;
+import java.net.Socket;
+
+class TCPClient {
+
+    private String SERVER_DOMAIN = "kauron.ddns.net"; //your computer IP address
+    private int SERVER_PORT = 2048;
+    private OnMessageReceived mMessageListener = null;
+    private final String message;
+
+    /**
+     *  Constructor of the class. OnMessagedReceived listens for the messages received from server
+     */
+    TCPClient(String message, String endpoint, OnMessageReceived listener) {
+        mMessageListener = listener;
+        this.message = message;
+        if (endpoint.contains(":")) {
+            String[] strings = endpoint.split(":");
+            SERVER_DOMAIN = strings[0];
+            SERVER_PORT = Integer.valueOf(strings[1]);
+        }
+    }
+
+    void run() {
+        try {
+            Socket socket = new Socket(SERVER_DOMAIN, SERVER_PORT);
+            try {
+                //send the message to the server
+                PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())), true);
+                if (!out.checkError()) {
+                    out.print(this.message);
+                    out.flush();
+                }
+                //receive the message which the server sends back
+                BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
+                String text = "", line;
+                while ((line = in.readLine()) != null) {
+                    text += line + '\n';
+                }
+                text = text.substring(0, text.length() - 1);
+
+                if (mMessageListener != null) {
+                    mMessageListener.messageReceived(text);
+                }
+            } catch (Exception e) {
+                Log.e("TCP", "S: Error", e);
+            } finally {
+                //the socket must be closed. It is not possible to reconnect to this socket
+                // after it is closed, which means a new socket instance has to be created.
+                socket.close();
+            }
+        } catch (Exception e) {
+            Log.e("TCP", "C: Error", e);
+        }
+    }
+
+    //Declare the interface. The method messageReceived(String message) will must be implemented in the MyActivity
+    //class at on asynckTask doInBackground
+    interface OnMessageReceived {
+        void messageReceived(String message);
+    }
+}

app/src/main/res/drawable/ic_search_black_24dp.xml

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+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M15.5,14h-0.79l-0.28,-0.27C15.41,12.59 16,11.11 16,9.5 16,5.91 13.09,3 9.5,3S3,5.91 3,9.5 5.91,16 9.5,16c1.61,0 3.09,-0.59 4.23,-1.57l0.27,0.28v0.79l5,4.99L20.49,19l-4.99,-5zM9.5,14C7.01,14 5,11.99 5,9.5S7.01,5 9.5,5 14,7.01 14,9.5 11.99,14 9.5,14z"/>
+</vector>

app/src/main/res/drawable/ic_settings_black_24dp.xml

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+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FFFFFFFF"
+        android:pathData="M19.43,12.98c0.04,-0.32 0.07,-0.64 0.07,-0.98s-0.03,-0.66 -0.07,-0.98l2.11,-1.65c0.19,-0.15 0.24,-0.42 0.12,-0.64l-2,-3.46c-0.12,-0.22 -0.39,-0.3 -0.61,-0.22l-2.49,1c-0.52,-0.4 -1.08,-0.73 -1.69,-0.98l-0.38,-2.65C14.46,2.18 14.25,2 14,2h-4c-0.25,0 -0.46,0.18 -0.49,0.42l-0.38,2.65c-0.61,0.25 -1.17,0.59 -1.69,0.98l-2.49,-1c-0.23,-0.09 -0.49,0 -0.61,0.22l-2,3.46c-0.13,0.22 -0.07,0.49 0.12,0.64l2.11,1.65c-0.04,0.32 -0.07,0.65 -0.07,0.98s0.03,0.66 0.07,0.98l-2.11,1.65c-0.19,0.15 -0.24,0.42 -0.12,0.64l2,3.46c0.12,0.22 0.39,0.3 0.61,0.22l2.49,-1c0.52,0.4 1.08,0.73 1.69,0.98l0.38,2.65c0.03,0.24 0.24,0.42 0.49,0.42h4c0.25,0 0.46,-0.18 0.49,-0.42l0.38,-2.65c0.61,-0.25 1.17,-0.59 1.69,-0.98l2.49,1c0.23,0.09 0.49,0 0.61,-0.22l2,-3.46c0.12,-0.22 0.07,-0.49 -0.12,-0.64l-2.11,-1.65zM12,15.5c-1.93,0 -3.5,-1.57 -3.5,-3.5s1.57,-3.5 3.5,-3.5 3.5,1.57 3.5,3.5 -1.57,3.5 -3.5,3.5z"/>
+</vector>

app/src/main/res/layout/activity_main.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<android.support.constraint.ConstraintLayout
+    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:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context="com.kauron.newssarcher.MainActivity">
+
+    <EditText
+        android:id="@+id/editText"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="8dp"
+        android:layout_marginEnd="8dp"
+        android:layout_marginLeft="8dp"
+        android:layout_marginStart="8dp"
+        android:layout_marginTop="8dp"
+        android:ems="10"
+        android:hint="@string/query"
+        android:imeOptions="actionSearch"
+        android:inputType="text"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.4"
+        app:layout_constraintBottom_toTopOf="@+id/horizontalScrollView"
+        app:layout_constraintRight_toLeftOf="@+id/imageButton"
+        android:layout_marginRight="8dp" />
+
+    <CheckBox
+        android:id="@+id/stopwordsCheck"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginEnd="8dp"
+        android:layout_marginLeft="8dp"
+        android:layout_marginRight="8dp"
+        android:layout_marginStart="8dp"
+        android:layout_marginTop="8dp"
+        android:text="@string/remove_stopwords"
+        app:layout_constraintHorizontal_bias="0.0"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/stemmingCheck" />
+
+    <CheckBox
+        android:id="@+id/stemmingCheck"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="8dp"
+        android:layout_marginRight="8dp"
+        android:text="@string/stemming"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        android:layout_marginStart="8dp"
+        android:layout_marginEnd="8dp"
+        app:layout_constraintHorizontal_bias="0.0"
+        android:layout_marginTop="8dp"
+        app:layout_constraintTop_toBottomOf="@+id/horizontalScrollView" />
+
+    <HorizontalScrollView
+        android:id="@+id/horizontalScrollView"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginEnd="8dp"
+        android:layout_marginLeft="8dp"
+        android:layout_marginRight="8dp"
+        android:layout_marginStart="8dp"
+        app:layout_constraintHorizontal_bias="0.0"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        android:layout_marginTop="8dp"
+        app:layout_constraintTop_toBottomOf="@+id/imageButton">
+
+        <LinearLayout
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            style="?android:buttonBarStyle"
+            android:orientation="horizontal">
+
+            <Button
+                android:id="@+id/button"
+                style="?android:attr/buttonBarButtonStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="8dp"
+                android:layout_marginStart="8dp"
+                android:layout_marginTop="8dp"
+                android:layout_weight="1"
+                android:onClick="onSymbolClick"
+                android:text="@string/asterisk"
+                app:layout_constraintLeft_toRightOf="@+id/button2"
+                app:layout_constraintTop_toBottomOf="@+id/editText" />
+
+            <Button
+                android:id="@+id/button2"
+                style="?android:attr/buttonBarButtonStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="8dp"
+                android:layout_marginStart="8dp"
+                android:layout_marginTop="8dp"
+                android:layout_weight="1"
+                android:onClick="onSymbolClick"
+                android:text="@string/question_mark"
+                app:layout_constraintLeft_toRightOf="@+id/button2"
+                app:layout_constraintTop_toBottomOf="@+id/editText" />
+
+            <Button
+                android:id="@+id/button3"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="8dp"
+                android:layout_marginStart="8dp"
+                android:layout_marginTop="8dp"
+                android:onClick="onBoolClick"
+                android:text="@string/and_search"
+                style="?android:attr/buttonBarButtonStyle"
+                app:layout_constraintLeft_toRightOf="@+id/button2"
+                app:layout_constraintTop_toBottomOf="@+id/editText" />
+
+            <Button
+                android:id="@+id/button4"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="8dp"
+                android:layout_marginStart="8dp"
+                android:layout_marginTop="8dp"
+                android:onClick="onBoolClick"
+                android:text="@string/or_search"
+                style="?android:attr/buttonBarButtonStyle"
+                app:layout_constraintLeft_toRightOf="@+id/button3"
+                app:layout_constraintTop_toBottomOf="@+id/editText" />
+
+            <Button
+                android:id="@+id/button8"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="8dp"
+                android:layout_marginStart="8dp"
+                android:layout_marginTop="8dp"
+                android:layout_weight="1"
+                android:onClick="onBoolClick"
+                android:text="@string/not_search"
+                style="?android:attr/buttonBarButtonStyle"
+                app:layout_constraintLeft_toRightOf="@+id/button3"
+                app:layout_constraintTop_toBottomOf="@+id/editText" />
+
+            <Button
+                android:id="@+id/button7"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="8dp"
+                android:layout_marginStart="8dp"
+                android:layout_marginTop="8dp"
+                android:layout_weight="1"
+                android:onClick="onFieldClick"
+                android:text="@string/category_search"
+                style="?android:attr/buttonBarButtonStyle"
+                app:layout_constraintLeft_toRightOf="@+id/button3"
+                app:layout_constraintTop_toBottomOf="@+id/editText"
+                android:layout_marginBottom="0dp" />
+
+            <Button
+                android:id="@+id/button6"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="8dp"
+                android:layout_marginStart="8dp"
+                android:layout_marginTop="8dp"
+                android:layout_weight="1"
+                android:onClick="onFieldClick"
+                android:text="@string/headline_search"
+                style="?android:attr/buttonBarButtonStyle"
+                app:layout_constraintLeft_toRightOf="@+id/button3"
+                app:layout_constraintTop_toBottomOf="@+id/editText" />
+
+            <Button
+                android:id="@+id/button5"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="8dp"
+                android:layout_marginStart="8dp"
+                android:layout_marginTop="8dp"
+                android:layout_weight="1"
+                android:onClick="onFieldClick"
+                android:text="@string/date_search"
+                style="?android:attr/buttonBarButtonStyle"
+                app:layout_constraintLeft_toRightOf="@+id/button3"
+                app:layout_constraintTop_toBottomOf="@+id/editText" />
+
+        </LinearLayout>
+    </HorizontalScrollView>
+
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="8dp"
+        android:layout_marginStart="8dp"
+        android:text="@string/click_to_see_the_result_long_click_to_copy"
+        app:layout_constraintLeft_toLeftOf="parent"
+        android:layout_marginTop="8dp"
+        app:layout_constraintTop_toBottomOf="@+id/stopwordsCheck" />
+
+    <ListView
+        android:id="@+id/listView"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginEnd="8dp"
+        android:layout_marginLeft="8dp"
+        android:layout_marginRight="8dp"
+        android:layout_marginStart="8dp"
+        app:layout_constraintHorizontal_bias="0.0"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        android:layout_marginTop="8dp"
+        app:layout_constraintTop_toBottomOf="@+id/textView" />
+
+    <ImageButton
+        android:id="@+id/imageButton"
+        style="@style/Widget.AppCompat.ImageButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginRight="8dp"
+        android:layout_marginStart="8dp"
+        android:layout_marginTop="8dp"
+        android:contentDescription="@string/search"
+        android:onClick="onButtonClick"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:srcCompat="@drawable/ic_search_black_24dp"
+        android:layout_marginLeft="8dp" />
+
+</android.support.constraint.ConstraintLayout>

app/src/main/res/layout/my_dialog.xml

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent" >
+
+    <LinearLayout
+        android:layout_width="fill_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical">
+
+        <TextView
+            android:id="@+id/options_text"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            tools:text="Options" />
+
+        <TextView
+            android:id="@+id/shortanswer_text"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:textAppearance="@style/TextAppearance.AppCompat.Body2"
+            tools:text="101 results in 0,3 seconds" />
+
+        <TextView
+            android:id="@+id/answer_text"
+            android:layout_width="fill_parent"
+            android:layout_height="fill_parent"
+            android:textAppearance="@style/TextAppearance.AppCompat.Body1"
+            tools:text="Answer" />
+
+    </LinearLayout>
+</ScrollView>

app/src/main/res/layout/query_list_item.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:paddingBottom="8dp"
+    android:paddingEnd="8dp"
+    android:paddingStart="8dp"
+    android:paddingTop="8dp">
+
+    <TextView
+        android:id="@+id/query_text"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:textAppearance="@style/TextAppearance.AppCompat.Large"
+        tools:text="NOT valencia" />
+
+    <TextView
+        android:id="@+id/options_text"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:textAppearance="@style/TextAppearance.AppCompat.Body1"
+        tools:text="Stopwords (yes), Stemming (yes)" />
+
+    <TextView
+        android:id="@+id/result_text"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:textAppearance="@style/TextAppearance.AppCompat.Body2"
+        tools:text="100 resultados en 10 segundos" />
+
+</LinearLayout>

app/src/main/res/menu/menu.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item
+        android:id="@+id/menu_settings"
+        android:icon="@drawable/ic_settings_black_24dp"
+        android:title="@string/settings"
+        app:showAsAction="ifRoom" />
+</menu>

app/src/main/res/values-ca/strings.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="click_to_see_the_result_long_click_to_copy">Toqueu per a veure els detalls</string>
+    <string name="close">Tancar</string>
+    <string name="copy_query">Copiar</string>
+    <string name="query">Pregunta</string>
+    <string name="no_answer_yet">La resposta encara no ha arribat</string>
+    <string name="remove_stopwords">Quitar paraules freqüents</string>
+    <string name="search">Buscar</string>
+    <string name="settings">Ajustos</string>
+    <string name="title_activity_settings">Ajustos</string>
+    <string name="stemming">Buscar també derivats</string>
+</resources>

app/src/main/res/values-en/strings.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="click_to_see_the_result_long_click_to_copy">Touch to see details</string>
+    <string name="close">Close</string>
+    <string name="copy_query">Copy query</string>
+    <string name="no_answer_yet">The answer hasn\'t arrived yet</string>
+    <string name="query">Query</string>
+    <string name="remove_stopwords">Remove stopwords</string>
+    <string name="search">Search</string>
+    <string name="settings">Settings</string>
+    <string name="stemming">Stemming</string>
+    <string name="title_activity_settings">Settings</string>
+</resources>

app/src/main/res/values-es/strings.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="close">Cerrar</string>
+    <string name="copy_query">Copiar consulta</string>
+    <string name="no_answer_yet">La respuesta aún no ha llegado</string>
+    <string name="query">Consulta</string>
+    <string name="remove_stopwords">Quitar palabras frecuentes</string>
+    <string name="search">Buscar</string>
+    <string name="settings">Ajustes</string>
+    <string name="stemming">Buscar también derivados</string>
+    <string name="title_activity_settings">Ajustes</string>
+    <string name="click_to_see_the_result_long_click_to_copy">Toca para ver detalles</string>
+</resources>

app/src/main/res/values/colors.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorPrimaryDark">#303F9F</color>
+    <color name="colorAccent">#FF4081</color>
+</resources>

app/src/main/res/values/strings.xml

@@ -0,0 +1,22 @@
+<resources>
+    <string name="app_name" translatable="false">News SARcher</string>
+    <string name="title_activity_settings">Settings</string>
+    <string name="default_endpoint" translatable="false">kauron.ddns.net</string>
+    <string name="date_search" translatable="false">date:</string>
+    <string name="and_search" translatable="false">AND</string>
+    <string name="not_search" translatable="false">NOT</string>
+    <string name="or_search" translatable="false">OR</string>
+    <string name="category_search" translatable="false">category:</string>
+    <string name="headline_search" translatable="false">headline:</string>
+    <string name="query">Query</string>
+    <string name="remove_stopwords">Remove stopwords</string>
+    <string name="stemming">Stemming</string>
+    <string name="asterisk" translatable="false">*</string>
+    <string name="question_mark" translatable="false">\?</string>
+    <string name="no_answer_yet">The answer hasn\'t arrived yet</string>
+    <string name="close">Close</string>
+    <string name="copy_query">Copy query</string>
+    <string name="click_to_see_the_result_long_click_to_copy">Touch to see the full result</string>
+    <string name="search">Search</string>
+    <string name="settings">Settings</string>
+</resources>

app/src/main/res/values/styles.xml

@@ -0,0 +1,11 @@
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+
+</resources>

app/src/main/res/xml/pref_general.xml

@@ -0,0 +1,22 @@
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <!-- NOTE: EditTextPreference accepts EditText attributes. -->
+    <!-- NOTE: EditTextPreference's summary should be set to its value by the activity code. -->
+
+    <!-- NOTE: Hide buttons to simplify the UI. Users can touch outside the dialog to
+         dismiss it. -->
+    <!-- NOTE: ListPreference's summary should be set to its value by the activity code. -->
+
+    <EditTextPreference
+        android:defaultValue="@string/default_endpoint"
+        android:key="pref_endpoint"
+        android:selectAllOnFocus="true"
+        android:singleLine="true"
+        android:title="Server address" />
+    <EditTextPreference
+        android:defaultValue="2048"
+        android:key="pref_port"
+        android:selectAllOnFocus="true"
+        android:singleLine="true"
+        android:title="Server port" />
+</PreferenceScreen>

app/src/test/java/com/kauron/newssarcher/ExampleUnitTest.java

@@ -0,0 +1,17 @@
+package com.kauron.newssarcher;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() throws Exception {
+        assertEquals(4, 2 + 2);
+    }
+}