CCSW-431 Mobile Programming

Chapter 1

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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"
    tools:context="com.example.chapter01.MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Sup doge"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>
package com.example.chapter01;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;

public class MainActivity extends AppCompatActivity {

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

Chapter 2

<?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:padding="16dp"
    android:orientation="vertical"
    tools:context="com.example.chapter02.FindBeerActivity"
    >

    <Spinner
        android:id="@+id/color"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="40dp"
        android:layout_gravity="center"
        android:layout_margin="16dp"
        android:entries="@array/beer_colors"
        />

    <Button
        android:id="@+id/find_beer"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_margin="16dp"
        android:text="@string/find_beer"
        android:onClick="onClickFindBeer"
        />

    <TextView
        android:id="@+id/brands"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_margin="16dp"
        android:text="@string/brands"
        />
</LinearLayout>

<resources>
    <string name="app_name">Beer Adviser</string>
    <string name="find_beer">Find Beer!</string>
    <string name="brands">No beers selected</string>
    <string-array name="beer_colors">
        <item>light</item>
        <item>amber</item>
        <item>brown</item>
        <item>dark</item>
    </string-array>
</resources>

package com.example.chapter02;

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

/**
 * Created by davidg on 28/04/2017.
 */

public class BeerExpert {
    List<String> getBrands(String color) {
        List<String> brands = new ArrayList<>();
        if (color.equals("amber")) {
            brands.add("Jack Amber");
            brands.add("Red Moose");
        } else {
            brands.add("Jail Pale Ale");
            brands.add("Gout Stout");
        }
        return brands;
    }
}

package com.example.chapter02;


import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Spinner;
import android.widget.TextView;

import java.util.List;

public class FindBeerActivity extends Activity {
    private BeerExpert expert = new BeerExpert();

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

    //Call when the button gets clicked
    public void onClickFindBeer(View view) {
        //Get a reference to the TextView
        TextView brands = (TextView) findViewById(R.id.brands);

        //Get a reference to the Spinner
        Spinner color = (Spinner) findViewById(R.id.color);

        //Get the selected item in the Spinner
        String beerType = String.valueOf(color.getSelectedItem());

        //Get recommendations from the BeerExpert class
        List<String> brandsList = expert.getBrands(beerType);
        StringBuilder brandsFormatted = new StringBuilder();
        for (String brand : brandsList) {
            brandsFormatted.append(brand).append('\n');
        }

        //Display the beers
        brands.setText(brandsFormatted);
    }
}

Chapter 3

<?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:padding="16dp"
    android:orientation="vertical"
    tools:context=".CreateMessageActivity"
    >
    <EditText
        android:id="@+id/message"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="20dp"
        android:hint="@string/hint"
        android:ems="10"
        />
    <Button
        android:id="@+id/send"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="20dp"
        android:onClick="onSendMessage"
        android:text="@string/send"
        />
</LinearLayout>
<?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:padding="16dp"
    android:orientation="vertical"
    tools:context=".ReceiveMessageActivity"
    >
    <TextView
        android:id="@+id/message"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        />
</LinearLayout>
<resources>
    <string name="app_name">My Messenger</string>
    <string name="send">Send Message</string>
    <string name="hint">Enter a message</string>
    <string name="chooser">Send message via...</string>
</resources>

package com.example.chapter03;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;

public class CreateMessageActivity extends Activity {

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

    //Call onSendMessage() when the button is clicked
    public void onSendMessage(View view) {
        EditText messageView = (EditText)findViewById(R.id.message);
        String messageText = messageView.getText().toString();
        Intent intent = new Intent(this, ReceiveMessageActivity.class);
//        intent.setType("text/plain");
//        intent.putExtra(Intent.EXTRA_TEXT, messageText);
//        String chooserTitle = getString(R.string.chooser);
//        Intent chosenIntent = Intent.createChooser(intent, chooserTitle);
//        startActivity(chosenIntent);
        intent.putExtra(ReceiveMessageActivity.EXTRA_MESSAGE, messageText);
        startActivity(intent);



    }
}

package com.example.chapter03;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.TextView;

public class ReceiveMessageActivity extends Activity {
    public static final String EXTRA_MESSAGE = "message";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_receive_message);
        Intent intent = getIntent();
        String messageText = intent.getStringExtra(EXTRA_MESSAGE);
        TextView messageView = (TextView)findViewById(R.id.message);
        messageView.setText(messageText);
    }
}

Chapter 4

<?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:padding="30dp"
    tools:context=".MainActivity"
    >
    <TextView
        android:id="@+id/time_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:textAppearance="@android:style/TextAppearance.Large"
        android:textSize="56sp"
        />
    <Button
        android:id="@+id/start_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="20dp"
        android:onClick="onClickStart"
        android:text="@string/start"
        />
    <Button
        android:id="@+id/stop_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="8dp"
        android:onClick="onClickStop"
        android:text="@string/stop"
        />
    <Button
        android:id="@+id/reset_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="8dp"
        android:onClick="onClickReset"
        android:text="@string/reset"
        />
</LinearLayout>
<resources>
    <string name="app_name">Chapter04</string>
    <string name="start">Start</string>
    <string name="stop">Stop</string>
    <string name="reset">Reset</string>
</resources>
package com.example.chapter04;

import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
import java.util.Locale;

public class MainActivity extends AppCompatActivity {
    private int seconds = 0;
    private boolean running;
    private boolean wasRunning;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        if (savedInstanceState != null) {
            seconds = savedInstanceState.getInt("seconds");
            running = savedInstanceState.getBoolean("running");
            wasRunning = savedInstanceState.getBoolean("wasRunning");
        }
        runTimer();
    }//this gets called before the activity gets destroyed
    @Override
    public void onSaveInstanceState(Bundle savedInstanceState) {
        super.onSaveInstanceState(savedInstanceState);
        savedInstanceState.putInt("seconds", seconds);
        savedInstanceState.putBoolean("running", running);
        savedInstanceState.putBoolean("wasRunning", wasRunning);
    }
    //the timer should resume running.
    @Override
    protected void onResume() {
        super.onResume();
        if (wasRunning) {
            running = true;
            Log.d("onResume:","onResume is called");
        }
    }
    @Override
    protected void onPause() {
        super.onPause();
        wasRunning = running;
        running = false;
        Log.d("onPause:","onPause is called");

    }
    //Start the stopwatch running when the Start button is clicked.
    public void onClickStart(View view) {
        running = true;
    }
    //Stop the stopwatch running when the Stop button is clicked.
    public void onClickStop(View view) {
        running = false;

    }
    //Reset the stopwatch when the Reset button is clicked.
    public void onClickReset(View view) {
        running = false;
        seconds = 0;
    }

    //Sets the number of seconds on the timer.
    private void runTimer() {
        final TextView timeView = (TextView)findViewById(R.id.time_view);
        final Handler handler = new Handler();
        handler.post(new Runnable() {
            @Override
            public void run() {
                int hours = seconds/3600;
                int minutes = (seconds%3600)/60;
                int secs = seconds%60;
                String time = String.format(Locale.getDefault(),
                        "%d:%02d:%02d", hours, minutes, secs);
                timeView.setText(time);
                //running default is false
                if (running) {
                    seconds++;
                }
                handler.postDelayed(this, 1000);
            }
        });
    }
}

Chapter 5

<?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:padding="16dp"
    android:orientation="vertical"
    tools:context=".MainActivity"
    >
    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="@string/to"
        />
    <EditText
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        android:gravity="top"
        android:hint="@string/message"
        />
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="end"
        android:text="@string/send"
        />
</LinearLayout>
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    tools:context=".MainActivity"
    >
    <ImageView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:scaleType="centerCrop"
        android:src="@drawable/duck"
        />
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:layout_gravity="bottom|end"
        android:gravity="end"
        android:padding="16dp"
        >
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textSize="20sp"
            android:text="It's a duck!"
            />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textSize="20sp"
            android:text="(not a real one)"
            />
    </LinearLayout>
</FrameLayout>
<resources>
    <string name="app_name">Chapter05</string>
    <string name="to">To</string>
    <string name="message">Message</string>
    <string name="send">Send</string>
</resources>
package com.example.chapter05;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;

import android.app.Activity;
import android.os.Bundle;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //setContentView(R.layout.duck_layout);
    }
}

Chapter 7

<?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"
    tools:context=".DrinkCategoryActivity"
    >
    <ListView
        android:id="@+id/list_drinks"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        />
</LinearLayout>
<?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"
    tools:context="com.hfad.starbuzz.DrinkActivity"
    >
    <ImageView
        android:id="@+id/photo"
        android:layout_width="190dp"
        android:layout_height="190dp"
        />
    <TextView
        android:id="@+id/name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        />
    <TextView
        android:id="@+id/description"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        />
</LinearLayout>
<?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"
    tools:context=".TopLevelActivity"
    >

    <ImageView
        android:layout_width="200dp"
        android:layout_height="100dp"
        android:src="@drawable/starbuzz_logo"
        android:contentDescription="@string/starbuzz_logo"
        />

    <ListView
        android:id="@+id/list_options"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:entries="@array/options"
        />
</LinearLayout>
<resources>
    <string name="app_name">Chapter07</string>
    <string name="starbuzz_logo">Starbuzz logo</string>
    <string-array name="options">
        <item>Drinks</item>
        <item>Food</item>
        <item>Stores</item>
    </string-array>
</resources>
package com.example.chapter07;

/**
 * Created by davidg on 30/04/2017.
 */

public class Drink {
    private String name; private String description; private int imageResourceId;
    //drinks is an array of Drinks
    public static final Drink[] drinks = {
            new Drink("Latte", "A couple of espresso shots with steamed milk", R.drawable.latte),
            new Drink("Cappuccino", "Espresso, hot milk, and a steamed milk foam", R.drawable.cappuccino),
            new Drink("Filter", "Highest quality beans roasted and brewed fresh", R.drawable.filter)
    };

    //Each Drink has a name, description, and an image resource
    private Drink(String name, String description, int imageResourceId) {
        this.name = name;
        this.description = description;
        this.imageResourceId = imageResourceId;
    }

    public String getDescription() {
        return description;
    }

    public String getName() {
        return name;
    }

    public int getImageResourceId() {
        return imageResourceId;
    }

    public String toString() {
        return this.name;
    }
}
package com.example.chapter07;

import androidx.appcompat.app.AppCompatActivity;
import android.app.Activity;
import android.os.Bundle;
import android.widget.ImageView;
import android.widget.TextView;
import android.os.Bundle;

public class DrinkActivity extends AppCompatActivity {
    public static final String EXTRA_DRINKID = "drinkId";
    @Override
    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_drink);
        //Get the drink from the intent
        int drinkId = (Integer)getIntent().getExtras().get(EXTRA_DRINKID);
        Drink drink = Drink.drinks[drinkId];

        //Populate the drink name
        TextView name = (TextView)findViewById(R.id.name);
        name.setText(drink.getName());

        //Populate the drink description
        TextView description = (TextView)findViewById(R.id.description);
        description.setText(drink.getDescription());

        //Populate the drink image
        ImageView photo = (ImageView)findViewById(R.id.photo);
        photo.setImageResource(drink.getImageResourceId());
        photo.setContentDescription(drink.getName());
    }
}



package com.example.chapter07;

import androidx.appcompat.app.AppCompatActivity;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.os.Bundle;

public class DrinkCategoryActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_drink_category);
        ArrayAdapter<Drink> listAdapter = new ArrayAdapter<>(
                this, android.R.layout.simple_list_item_1, Drink.drinks);
        ListView listDrinks = (ListView) findViewById(R.id.list_drinks);
        listDrinks.setAdapter(listAdapter);

        //Create the listener
        AdapterView.OnItemClickListener itemClickListener =
                new AdapterView.OnItemClickListener(){
                    @Override
                    public void onItemClick(AdapterView<?> listDrinks,
                                            View itemView,
                                            int position,
                                            long id) {
                        //Pass the drink the user clicks on to DrinkActivity
                        Intent intent = new Intent(DrinkCategoryActivity.this,
                                DrinkActivity.class);
                        intent.putExtra(DrinkActivity.EXTRA_DRINKID, (int) id);
                        startActivity(intent);
                    }
                };

        //Assign the listener to the list view
        listDrinks.setOnItemClickListener(itemClickListener);
    }
    }

package com.example.chapter07;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
public class TopLevelActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_top_level);
        //Create an OnItemClickListener
        AdapterView.OnItemClickListener itemClickListener =
                new AdapterView.OnItemClickListener(){
                    @Override
                    public void onItemClick(AdapterView<?> listView,
                                            View itemView,
                                            int position,
                                            long id) {
                        if (position == 0) {
                            Intent intent = new Intent(TopLevelActivity.this,
                                    DrinkCategoryActivity.class);
                            startActivity(intent);
                        }
                    }
                };
        //Add the listener to the list view
        ListView listView = (ListView) findViewById(R.id.list_options);
        listView.setOnItemClickListener(itemClickListener);
    }
    }

Chapter 12

<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout
    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"
    tools:context=".MainActivity"
    >

    <com.google.android.material.appbar.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/ThemeOverlay.AppCompat.ActionBar"
        >
        <androidx.appcompat.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            app:layout_scrollFlags="scroll|enterAlways"
            />
        <com.google.android.material.tabs.TabLayout
            android:id="@+id/tabs"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            />
    </com.google.android.material.appbar.AppBarLayout>

    <androidx.viewpager.widget.ViewPager
        android:id="@+id/pager"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior"
        />
</androidx.coordinatorlayout.widget.CoordinatorLayout>
<?xml version="1.0" encoding="utf-8"?>
<androidx.core.widget.NestedScrollView
    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"
    tools:context=".TopFragment"
    >
<!--We’re using a FrameLayout because we want to position the text on top of the image-->
    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        >
        <ImageView
            android:id="@+id/info_image"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:scaleType="centerCrop"
            android:src="@drawable/restaurant"
            android:contentDescription="@string/restaurant_image"
            />
<!--We’re using a LinearLayout to contain the text. We’re giving it a white background, and the margins will add space around the edges-->
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="40dp"
            android:layout_marginLeft="16dp"
            android:layout_marginRight="16dp"
            android:padding="16dp"
            android:background="#FFFFFF"
            android:orientation="vertical"
            >
            <TextView
                android:textSize="32sp"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="@string/company_name"
                />
            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="@string/home_text"
                />
        </LinearLayout>
    </FrameLayout>
</androidx.core.widget.NestedScrollView>
<resources>
    <string name="app_name">Bits and Pizzas</string>
    <string name="create_order">Create Order</string>
    <string name="create_order_title">Create Order</string>
    <string name="action_share">Share</string>

    <string name="title_top">Top fragment</string>


    <string-array name="pizzas">
        <item>Diavolo</item>
        <item>Funghi</item>
    </string-array>

    <string-array name="pasta">
        <item>Spaghetti Bolognese</item>
        <item>Lasagne</item>
    </string-array>

    <string-array name="stores">
        <item>Cambridge</item>
        <item>Sebastopol</item>
    </string-array>

    <string name="home_tab">Home</string>
    <string name="pizza_tab">Pizzas</string>
    <string name="pasta_tab">Pasta</string>
    <string name="store_tab">Stores</string>

    <string name="company_name">Bits and Pizzas</string>
    <string name="restaurant_image">Restaurant image</string>
    <string name="home_text">Since we opened our doors in 2017, Bits and Pizzas
        has built its reputation as one of America’s best Italian-Digital restaurants. Some
        people believe eating out is about being with your friends and family. We believe that
        good food is best enjoyed while staring at your phone.</string>

    <string name="order_name_hint">Please enter your name</string>
    <string name="order_details_hint">Please enter your order</string>
    <!-- TODO: Remove or change this placeholder text -->
    <string name="hello_blank_fragment">Hello blank fragment</string>
</resources>

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>

</resources>

package com.example.chapter12;


import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;

import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.ShareActionProvider;
import androidx.appcompat.widget.Toolbar;
import androidx.core.view.MenuItemCompat;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentPagerAdapter;
import androidx.viewpager.widget.ViewPager;

import com.google.android.material.tabs.TabLayout;

public class MainActivity extends AppCompatActivity {
    private ShareActionProvider shareActionProvider;

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

        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        //Attach the SectionsPagerAdapter to the ViewPager
        SectionsPagerAdapter pagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
        ViewPager pager = (ViewPager) findViewById(R.id.pager);
      //Attach the FragmentPagerAdapter to the ViewPager.
        pager.setAdapter(pagerAdapter);
     

        //Attach the ViewPager to the TabLayout
        TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
      //This links the ViewPager to the TabLayout.
        tabLayout.setupWithViewPager(pager);
    
    }

/*    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the app bar.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        MenuItem menuItem = menu.findItem(R.id.action_share);
        shareActionProvider =
                (ShareActionProvider) MenuItemCompat.getActionProvider(menuItem);
        setShareActionIntent("Want to join me for pizza?");
        return super.onCreateOptionsMenu(menu);
    }*/

    private void setShareActionIntent(String text) {
        Intent intent = new Intent(Intent.ACTION_SEND);
        intent.setType("text/plain");
        intent.putExtra(Intent.EXTRA_TEXT, text);
        shareActionProvider.setShareIntent(intent);
    }

 //   @Override
   // public boolean onOptionsItemSelected(MenuItem item) {
     //   switch (item.getItemId()) {
            //case R.id.action_create_order:
            //    Intent intent = new Intent(this, OrderActivity.class);
            //   startActivity(intent);
            //    return true;
            // default:
       //         return super.onOptionsItemSelected(item);
       // }
   // }
  //The FragmentPagerAdapter passes information to the ViewPager.
    private class SectionsPagerAdapter extends FragmentPagerAdapter {
        public SectionsPagerAdapter(FragmentManager fm) {
            super(fm);
        }

        @Override
     //Say how many pages the ViewPager should contain.
        public int getCount() {
            return 4;
        }

        @Override
     //Specify which fragment should appear on each page.
        public Fragment getItem(int position) {
            switch (position) {
                case 0:
                    return new TopFragment();
                case 1:
                    return new PizzaFragment();
                case 2:
                    return new PastaFragment();
                case 3:
                    return new StoresFragment();
            }
            return null;
        }
        //This method adds the text to the tabs.
        @Override
        public CharSequence getPageTitle(int position) {
            switch (position) {
                case 0:
                    return "Home";
                case 1:
                    return getResources().getText(R.string.pizza_tab);
                case 2:
                    return getResources().getText(R.string.pasta_tab);
                case 3:
                    return getResources().getText(R.string.store_tab);
            }
            return null;
        }
    }
}

package com.example.chapter12;

import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;

import androidx.fragment.app.ListFragment;

/**
 * A simple {@link Fragment} subclass.
 */
public class PastaFragment extends ListFragment {
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        ArrayAdapter<String> adapter = new ArrayAdapter<>(
                inflater.getContext(), android.R.layout.simple_list_item_1,
                getResources().getStringArray(R.array.pasta));
        setListAdapter(adapter);
        return super.onCreateView(inflater, container, savedInstanceState);
    }
}

package com.example.chapter12;

import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;

import androidx.fragment.app.ListFragment;

/**
 * A simple {@link Fragment} subclass.
 */
public class PizzaFragment extends ListFragment {
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        ArrayAdapter<String> adapter = new ArrayAdapter<>(
                inflater.getContext(), android.R.layout.simple_list_item_1,
                getResources().getStringArray(R.array.pizzas));
        setListAdapter(adapter);
        return super.onCreateView(inflater, container, savedInstanceState);
    }
}

package com.example.chapter12;


import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;

import androidx.fragment.app.ListFragment;

/**
 * A simple {@link Fragment} subclass.
 */
public class StoresFragment extends ListFragment {
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        ArrayAdapter<String> adapter = new ArrayAdapter<>(
                inflater.getContext(), android.R.layout.simple_list_item_1,
                getResources().getStringArray(R.array.stores));
        setListAdapter(adapter);
        return super.onCreateView(inflater, container, savedInstanceState);
    }

}

package com.example.chapter12;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import androidx.fragment.app.Fragment;


/**
 * A simple {@link Fragment} subclass.
 * Activities that contain this fragment must implement the
 * {@link TopFragment.OnFragmentInteractionListener} interface
 * to handle interaction events.
 * Use the {@link TopFragment#newInstance} factory method to
 * create an instance of this fragment.
 */
public class TopFragment extends Fragment {
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        return inflater.inflate(R.layout.fragment_top, container, false);
    }
}

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="purple_200">#FFBB86FC</color>
    <color name="purple_500">#FF6200EE</color>
    <color name="purple_700">#FF3700B3</color>
    <color name="teal_200">#FF03DAC5</color>
    <color name="teal_700">#FF018786</color>
    <color name="black">#FF000000</color>
    <color name="white">#FFFFFFFF</color>
    <color name="colorPrimary">#3F51B5</color>
    <color name="colorPrimaryDark">#303F9F</color>
    <color name="colorAccent">#FF4081</color>
</resources>

Chapter14

<resources>
    <string name="app_name">Chapter14</string>

    <string name="user_name">spot@catchat.com</string>

    <string name="nav_inbox">Mesagez</string>

    <string name="nav_drafts">Draftz</string>

    <string name="nav_sent">Sent mesagez</string>

    <string name="nav_trash">In da trash</string>

    <string name="nav_support">Support</string>

    <string name="nav_help">Halp</string>

    <string name="nav_feedback">Giv us feedback</string>

    <string name="nav_open_drawer">Open navigation drawer</string>

    <string name="nav_close_drawer">Close navigation drawer</string>
    <!-- TODO: Remove or change this placeholder text -->
    <string name="hello_blank_fragment">Hello blank fragment</string>
    <string name="title_activity_help">HelpActivity</string>
    <!-- Strings used for fragments for navigation -->
    <string name="first_fragment_label">First Fragment</string>
    <string name="second_fragment_label">Second Fragment</string>
    <string name="next">Next</string>
    <string name="previous">Previous</string>

    <string name="hello_first_fragment">Hello first fragment</string>
    <string name="hello_second_fragment">Hello second fragment. Arg: %1$s</string>
    <string name="title_activity_feedback">FeedbackActivity</string>
</resources>
<?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"
    tools:context=".FeedbackActivity"
    >
    <include
        layout="@layout/toolbar_main"
        android:id="@+id/toolbar"
        />
    <TextView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:text="Feedback"
        />
</LinearLayout>
<?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"
    tools:context=".HelpActivity"
    >
    <include
        layout="@layout/toolbar_main"
        android:id="@+id/toolbar"
        />
    <TextView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:text="Help"
        />
</LinearLayout>
<?xml version="1.0" encoding="utf-8"?>

<!-- The layout's root element is a DrawerLayout -->
<androidx.drawerlayout.widget.DrawerLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    >
    <!--  This is for the drawer’s main content. -->
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">
        <!-- The activity’s main content is composed of a Toolbar, and a FrameLayout in which  we’ll display fragments. -->
        <include
            layout="@layout/toolbar_main"
            android:id="@+id/toolbar"
            />
        <FrameLayout
            android:id="@+id/content_frame"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            />
    </LinearLayout>
    <!-- The NavigationView defines the drawer’s appearance and much of its behavior. We’re giving it an ID, as we’ll need to refer to it in our activity code -->
   <!-- We’re using the layout we created earlier as the drawer’s header, and the menu resource file for the list of options -->
    <com.google.android.material.navigation.NavigationView
        android:id="@+id/nav_view"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        app:headerLayout="@layout/nav_header"
        app:menu="@menu/menu_nav"/>
</androidx.drawerlayout.widget.DrawerLayout>
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout 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"
    tools:context=".DraftsFragment">

    <!-- TODO: Update blank fragment layout -->
    <TextView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:text="@string/hello_blank_fragment" />

</FrameLayout>
<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"
    tools:context=".InboxFragment"
    >
    <TextView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:text="Inbox"
        />
</LinearLayout>
<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"
    tools:context=".SentItemsFragment"
    >
    <TextView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:text="Sent items"
        />
</LinearLayout>
<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"
    tools:context=".TrashFragment"
    >
    <TextView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:text="Trash"
        />
</LinearLayout>
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="180dp"
    android:theme="@style/ThemeOverlay.AppCompat.Dark"
    >
    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:scaleType="centerCrop"
        android:src="@drawable/kitten_small"
        />
    <!-- This LinearLayout will appear on top of the ImageView. We're using it to display text at the bottom of the image.-->
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:gravity="bottom|start"
        android:layout_margin="16dp">
        <!-- This is a built-in style that makes the text look slightly bolder. It comes from the AppCompat Support Library -->
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/app_name"
            android:textAppearance="@style/TextAppearance.AppCompat.Body1"
            />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/user_name"
            />
    </LinearLayout>
</FrameLayout>
<?xml version="1.0" encoding="utf-8"?>
<androidx.appcompat.widget.Toolbar
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"
    android:background="?attr/colorPrimary"
    android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" />
<?xml version="1.0" encoding="utf-8"?>

<!--Add this group and the four items it contains to your menu resource file so they'll appear in the navigation drawer -->
<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- This means that a single item in the group will be highlighted (the option the user selects) -->
    <group android:checkableBehavior="single">
        <!-- the first group contains message, draft, sent, and trash -->
        <!-- Checked = True, highlights the item in the navigation drawer by default -->
        <!-- This is a built-in drawable you can use to display an email icon -->
        <item
            android:id="@+id/nav_inbox"
            android:icon="@android:drawable/sym_action_email"
            android:title="@string/nav_inbox"
            android:checked="true"
            />
        <item
            android:id="@+id/nav_drafts"
            android:icon="@android:drawable/ic_menu_edit"
            android:title="@string/nav_drafts"
            />
        <item
            android:id="@+id/nav_sent"
            android:icon="@android:drawable/ic_menu_send"
            android:title="@string/nav_sent"
            />
        <item
            android:id="@+id/nav_trash"
            android:icon="@android:drawable/ic_menu_delete"
            android:title="@string/nav_trash"
            />
    </group>

    <item android:title="@string/nav_support">
        <menu>
            <!-- the second group contains help and feedback -->
            <item
                android:id="@+id/nav_help"
                android:icon="@android:drawable/ic_menu_help"
                android:title="@string/nav_help"
                />
            <item
                android:id="@+id/nav_feedback"
                android:icon="@android:drawable/sym_action_email"
                android:title="@string/nav_feedback"
                />
        </menu>
    </item>

</menu>
package com.example.chapter14;


import android.os.Bundle;
import androidx.fragment.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

public class DraftsFragment extends Fragment {

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        return inflater.inflate(R.layout.fragment_drafts, container, false);
    }
}

package com.example.chapter14;

import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
import android.os.Bundle;

public class FeedbackActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_feedback);
        //5. Set the toolbar as the activity's app bar, page 313

        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
    }
}

package com.example.chapter14;

import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
import android.os.Bundle;

public class HelpActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_help);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
    }
}

package com.example.chapter14;

import android.os.Bundle;

import androidx.fragment.app.Fragment;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;


public class InboxFragment extends Fragment {

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        return inflater.inflate(R.layout.fragment_inbox, container, false);
    }
}

package com.example.chapter14;
import androidx.annotation.NonNull;
import androidx.appcompat.app.ActionBarDrawerToggle;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
import androidx.core.view.GravityCompat;
import androidx.drawerlayout.widget.DrawerLayout;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentTransaction;

import android.content.Intent;
import android.os.Bundle;
import android.view.MenuItem;


import com.google.android.material.navigation.NavigationView;

//Implementing this interface means the activity can listen for clicks
public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {

    private DrawerLayout drawer;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        //setSupportActionBar(toolbar);

        // Add a drawer toggle with the burger icon
        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
                this,
                drawer,
                toolbar,
                R.string.nav_open_drawer,
                R.string.nav_close_drawer);
        drawer.addDrawerListener(toggle);
        toggle.syncState();

        //Register the activity with the navigation view as a listener.
        NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
        navigationView.setNavigationItemSelectedListener(this);


        Fragment fragment = new InboxFragment();
        FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
        //We are replacing the content_frame from the activity_main.xml to the default fragment (i.e., inbox).
        ft.add(R.id.content_frame, fragment);
        ft.commit();
    }

    //This method gets called when the user clicks on one of the items in the drawer
    @Override
    public boolean onNavigationItemSelected(MenuItem item) {
        int id = item.getItemId();
        Fragment fragment = null;
        Intent intent = null;

        switch(id) {
            case R.id.nav_drafts:
                fragment = new DraftsFragment();
                break;
            case R.id.nav_sent:
                fragment = new SentItemsFragment();
                break;
            case R.id.nav_trash:
                fragment = new TrashFragment();
                break;
            case R.id.nav_help:
                intent = new Intent(this, HelpActivity.class);
                break;
            case R.id.nav_feedback:
                intent = new Intent(this, FeedbackActivity.class);
                break;
            default:
                fragment = new InboxFragment();
        }

        if (fragment != null) {
            FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
            //We are replacing the content_frame from the activity_main.xml to the clicked fragment
            ft.replace(R.id.content_frame, fragment);
            ft.commit();
        } else {
            startActivity(intent);
        }

        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        drawer.closeDrawer(GravityCompat.START);
        return true;
    }

    //This gets called when the Back button gets pressed
    @Override
    public void onBackPressed() {
        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        //If the drawer is currently open, close it.
        if (drawer.isDrawerOpen(GravityCompat.START)) {
            drawer.closeDrawer(GravityCompat.START);
        } else {
            //Otherwise, call up to the superclass onBackPressed() method
            super.onBackPressed();
        }
    }
}

package com.example.chapter14;


import android.os.Bundle;
import androidx.fragment.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

public class SentItemsFragment extends Fragment {

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        return inflater.inflate(R.layout.fragment_sent_items, container, false);
    }
}

package com.example.chapter14;


import android.os.Bundle;
import androidx.fragment.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

public class TrashFragment extends Fragment {

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        return inflater.inflate(R.layout.fragment_trash, container, false);
    }
}

Chapter 15

<?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">
    <ListView
        android:id="@+id/list_drinks"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        />
</LinearLayout>
<?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"
    >
    <ImageView
        android:id="@+id/photo"
        android:layout_width="190dp"
        android:layout_height="190dp"
        />
    <TextView
        android:id="@+id/name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        />
    <TextView
        android:id="@+id/description"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        />
</LinearLayout>
<?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"

    >

    <ImageView
        android:layout_width="200dp"
        android:layout_height="100dp"
        android:src="@drawable/starbuzz_logo"
        android:contentDescription="@string/starbuzz_logo"
        />

    <ListView
        android:id="@+id/list_options"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:entries="@array/options"
        />
</LinearLayout>
<resources>
    <string name="app_name">Chapter15</string>
    <string name="starbuzz_logo">Starbuzz logo</string>
    <string-array name="options">
        <item>Drinks</item>
        <item>Food</item>
        <item>Stores</item>
    </string-array>
</resources>
package com.example.chapter15;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class drink_category extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_drink_category);
        ArrayAdapter<Drink> listAdapter = new ArrayAdapter<>(
                this, android.R.layout.simple_list_item_1, Drink.drinks);
        ListView listDrinks = (ListView) findViewById(R.id.list_drinks);
        listDrinks.setAdapter(listAdapter);

        //Create the listener
        AdapterView.OnItemClickListener itemClickListener =
                new AdapterView.OnItemClickListener(){
                    @Override
                    public void onItemClick(AdapterView<?> listDrinks,
                                            View itemView,
                                            int position,
                                            long id) {
                        //Pass the drink the user clicks on to DrinkActivity
                        Intent intent = new Intent(drink_category.this,
                                DrinkActivity.class);
                        intent.putExtra(DrinkActivity.EXTRA_DRINKID, (int) id);
                        startActivity(intent);
                    }
                };

        //Assign the listener to the list view
        listDrinks.setOnItemClickListener(itemClickListener);
    }
}

package com.example.chapter15;


/**
 * Created by davidg on 30/04/2017.
 */

        public class Drink {
            private String name; private String description; private int imageResourceId;
            //drinks is an array of Drinks
            public static final com.example.chapter15.Drink[] drinks = {
                    new com.example.chapter15.Drink("Latte", "A couple of espresso shots with steamed milk", R.drawable.latte),
                    new com.example.chapter15.Drink("Cappuccino", "Espresso, hot milk, and a steamed milk foam", R.drawable.cappuccino),
                    new com.example.chapter15.Drink("Filter", "Highest quality beans roasted and brewed fresh", R.drawable.filter)
            };

            //Each Drink has a name, description, and an image resource
            private Drink(String name, String description, int imageResourceId) {
                this.name = name;
                this.description = description;
        this.imageResourceId = imageResourceId;
    }

    public String getDescription() {
        return description;
    }

    public String getName() {
        return name;
    }

    public int getImageResourceId() {
        return imageResourceId;
    }

    public String toString() {
        return this.name;
    }
}

package com.example.chapter15;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.app.Activity;
import android.os.Bundle;
import android.widget.ImageView;
import android.widget.TextView;

public class DrinkActivity extends AppCompatActivity {

    public static final String EXTRA_DRINKID = "drinkId";

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

        //Get the drink from the intent
        int drinkId = (Integer)getIntent().getExtras().get(EXTRA_DRINKID);
        Drink drink = Drink.drinks[drinkId];

        //Populate the drink name
        TextView name = (TextView)findViewById(R.id.name);
        name.setText(drink.getName());

        //Populate the drink description
        TextView description = (TextView)findViewById(R.id.description);
        description.setText(drink.getDescription());

        //Populate the drink image
        ImageView photo = (ImageView)findViewById(R.id.photo);
        photo.setImageResource(drink.getImageResourceId());
        photo.setContentDescription(drink.getName());
    }
}
package com.example.chapter15;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //Create an OnItemClickListener
        AdapterView.OnItemClickListener itemClickListener =
                new AdapterView.OnItemClickListener(){
                    @Override
                    public void onItemClick(AdapterView<?> listView,
                                            View itemView,
                                            int position,
                                            long id) {
                        if (position == 0) {
                            Intent intent = new Intent(MainActivity.this,
                                    drink_category.class);
                            startActivity(intent);
                        }
                    }
                };
        //Add the listener to the list view
        ListView listView = (ListView) findViewById(R.id.list_options);
        listView.setOnItemClickListener(itemClickListener);
    }
}
package com.example.chapter15;


import android.content.ContentValues;
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;

public class StarbuzzDatabaseHelper extends SQLiteOpenHelper {

    private static final String DB_NAME = "starbuzz"; // the name of our database
    private static final int DB_VERSION = 2; // the version of the database

    StarbuzzDatabaseHelper(Context context) {
        super(context, DB_NAME, null, DB_VERSION);
    }

    @Override
    public void onCreate(SQLiteDatabase db) {
        updateMyDatabase(db, 0, DB_VERSION);
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        updateMyDatabase(db, oldVersion, newVersion);
    }

    private static void insertDrink(SQLiteDatabase db, String name, String description,
                                    int resourceId) {
        ContentValues drinkValues = new ContentValues();
        drinkValues.put("NAME", name);
        drinkValues.put("DESCRIPTION", description);
        drinkValues.put("IMAGE_RESOURCE_ID", resourceId);
        //DrinkValues ("NAME": Latte, "DESCRIPTION": Espresso, "IMAGE_RESOURCE_ID": 53556)
        db.insert("DRINK", null, drinkValues);
    }

    private void updateMyDatabase(SQLiteDatabase db, int oldVersion, int newVersion) {
        if (oldVersion < 1) {
            //Just to create our table in the database
            db.execSQL("CREATE TABLE DRINK (_id INTEGER PRIMARY KEY AUTOINCREMENT, "
                    + "NAME TEXT, "
                    + "DESCRIPTION TEXT, "
                    + "IMAGE_RESOURCE_ID INTEGER);");
            //
            insertDrink(db, "Latte", "Espresso and steamed milk", R.drawable.latte);
            insertDrink(db, "Cappuccino", "Espresso, hot milk and steamed-milk foam",
                    R.drawable.cappuccino);
            insertDrink(db, "Filter", "Our best drip coffee", R.drawable.filter);
        }
        if (oldVersion < 2) {
            db.execSQL("ALTER TABLE DRINK ADD COLUMN FAVORITE NUMERIC;");
        }
    }
}

Chapter 16

<?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">
    <ListView
        android:id="@+id/list_drinks"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        />
</LinearLayout>
<?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"
    >
    <ImageView
        android:id="@+id/photo"
        android:layout_width="190dp"
        android:layout_height="190dp"
        />
    <TextView
        android:id="@+id/name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        />
    <TextView
        android:id="@+id/description"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        />

    <CheckBox
        android:id="@+id/favorite"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/favorite"
        android:onClick="onFavoriteClicked"
        />
</LinearLayout>
<?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"
    >

    <ImageView
        android:layout_width="200dp"
        android:layout_height="100dp"
        android:src="@drawable/starbuzz_logo"
        android:contentDescription="@string/starbuzz_logo"
        />

    <ListView
        android:id="@+id/list_options"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:entries="@array/options"
        />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="@string/favorites"
        />

    <ListView
        android:id="@+id/list_favorites"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        />
</LinearLayout>
<resources>
    <string name="app_name">Chapter15</string>
    <string name="starbuzz_logo">Starbuzz logo</string>
    <string name="favorite">Favorite</string>
    <string name="favorites">Your favorite drinks:</string>
    <string-array name="options">
        <item>Drinks</item>
        <item>Food</item>
        <item>Stores</item>
    </string-array>

</resources>
package com.example.chapter15;

import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteException;
import android.database.sqlite.SQLiteOpenHelper;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.Toast;

public class drink_category extends Activity {

    private SQLiteDatabase db;
    private Cursor cursor;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_drink_category);
        SQLiteOpenHelper starbuzzDatabaseHelper = new StarbuzzDatabaseHelper(this);
        ListView listDrinks = (ListView) findViewById(R.id.list_drinks);
        try {
            db = starbuzzDatabaseHelper.getReadableDatabase();
            cursor = db.query("DRINK",
                    new String[]{"_id", "NAME"},
                    null, null, null, null, null);
            SimpleCursorAdapter listAdapter = new SimpleCursorAdapter(this,
                    android.R.layout.simple_list_item_1,
                    cursor,
                    new String[]{"NAME"},
                    new int[]{android.R.id.text1},
                    0);

            listDrinks.setAdapter(listAdapter);
        } catch(SQLiteException e) {
            Toast toast = Toast.makeText(this, "Database unavailable", Toast.LENGTH_SHORT);
            toast.show();
        }

        //Create the listener
        AdapterView.OnItemClickListener itemClickListener =
                new AdapterView.OnItemClickListener(){
                    @Override
                    public void onItemClick(AdapterView<?> listDrinks,
                                            View itemView,
                                            int position,
                                            long id) {
                        //Pass the drink the user clicks on to DrinkActivity
                        Intent intent = new Intent(drink_category.this,
                                DrinkActivity.class);
                        intent.putExtra(DrinkActivity.EXTRA_DRINKID, (int) id);
                        startActivity(intent);
                    }
                };

        //Assign the listener to the list view
        listDrinks.setOnItemClickListener(itemClickListener);
    }

    @Override
    public void onDestroy(){
        super.onDestroy();
        cursor.close();
        db.close();
    }
}

package com.example.chapter15;


/**
 * Created by davidg on 30/04/2017.
 */

        public class Drink {
            private String name; private String description; private int imageResourceId;
            //drinks is an array of Drinks
            public static final com.example.chapter15.Drink[] drinks = {
                    new com.example.chapter15.Drink("Latte", "A couple of espresso shots with steamed milk", R.drawable.latte),
                    new com.example.chapter15.Drink("Cappuccino", "Espresso, hot milk, and a steamed milk foam", R.drawable.cappuccino),
                    new com.example.chapter15.Drink("Filter", "Highest quality beans roasted and brewed fresh", R.drawable.filter)
            };

            //Each Drink has a name, description, and an image resource
            private Drink(String name, String description, int imageResourceId) {
                this.name = name;
                this.description = description;
        this.imageResourceId = imageResourceId;
    }

    public String getDescription() {
        return description;
    }

    public String getName() {
        return name;
    }

    public int getImageResourceId() {
        return imageResourceId;
    }

    public String toString() {
        return this.name;
    }
}

package com.example.chapter15;
import android.app.Activity;
import android.content.ContentValues;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteException;
import android.database.sqlite.SQLiteOpenHelper;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.View;
import android.widget.CheckBox;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

public class DrinkActivity extends Activity {
    public static final String EXTRA_DRINKID = "drinkId";

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

        //Get the drink from the intent
        int drinkId = (Integer)getIntent().getExtras().get(EXTRA_DRINKID);

        //Create a cursor
        SQLiteOpenHelper starbuzzDatabaseHelper = new StarbuzzDatabaseHelper(this);
        try {
            SQLiteDatabase db = starbuzzDatabaseHelper.getReadableDatabase();
            Cursor cursor = db.query ("DRINK",
                    new String[] {"NAME", "DESCRIPTION", "IMAGE_RESOURCE_ID", "FAVORITE"},
                    "_id = ?",
                    new String[] {Integer.toString(drinkId)},
                    null, null,null);
            //Move to the first record in the Cursor
            if (cursor.moveToFirst()) {
                //Get the drink details from the cursor
                String nameText = cursor.getString(0);
                String descriptionText = cursor.getString(1);
                int photoId = cursor.getInt(2);
                boolean isFavorite = (cursor.getInt(3) == 1);

                //Populate the drink name
                TextView name = (TextView)findViewById(R.id.name);
                name.setText(nameText);

                //Populate the drink description
                TextView description = (TextView)findViewById(R.id.description);
                description.setText(descriptionText);

                //Populate the drink image
                ImageView photo = (ImageView)findViewById(R.id.photo);
                photo.setImageResource(photoId);
                photo.setContentDescription(nameText);

                //Populate the favorite checkbox
                CheckBox favorite = (CheckBox)findViewById(R.id.favorite);
                favorite.setChecked(isFavorite);
            }
        } catch(SQLiteException e) {
            Toast toast = Toast.makeText(this, "Database unavailable", Toast.LENGTH_SHORT);
            toast.show();
        }
    }

    //Update the database when the checkbox is clicked
    public void onFavoriteClicked(View view){
        int drinkId = (Integer) getIntent().getExtras().get(EXTRA_DRINKID);

        new UpdateDrinkTask().execute(drinkId);
    }

    //Inner class to update the drink.
    private class UpdateDrinkTask extends AsyncTask<Integer, Void, Boolean> {
        private ContentValues drinkValues;

        protected void onPreExecute() {
            CheckBox favorite = (CheckBox) findViewById(R.id.favorite);
            drinkValues = new ContentValues();
            drinkValues.put("FAVORITE", favorite.isChecked());
        }

        protected Boolean doInBackground(Integer... drinks) {
            int drinkId = drinks[0];
            SQLiteOpenHelper starbuzzDatabaseHelper =
                    new StarbuzzDatabaseHelper(DrinkActivity.this);
            try {
                SQLiteDatabase db = starbuzzDatabaseHelper.getWritableDatabase();
                db.update("DRINK", drinkValues,
                        "_id = ?", new String[]{Integer.toString(drinkId)});
                db.close();
                return true;
            } catch (SQLiteException e) {
                return false;
            }
        }

        protected void onPostExecute(Boolean success) {
            if (!success) {
                Toast toast = Toast.makeText(DrinkActivity.this,
                        "Database unavailable", Toast.LENGTH_SHORT);
                toast.show();
            }
        }
    }
}

package com.example.chapter15;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteException;
import android.database.sqlite.SQLiteOpenHelper;
import android.widget.CursorAdapter;
import android.widget.SimpleCursorAdapter;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    private SQLiteDatabase db;
    private Cursor favoritesCursor;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        setupOptionsListView();
        setupFavoritesListView();
    }

    private void setupOptionsListView() {
        //Create an OnItemClickListener
        AdapterView.OnItemClickListener itemClickListener =
                new AdapterView.OnItemClickListener(){
                    @Override
                    public void onItemClick(AdapterView<?> listView,
                                            View itemView,
                                            int position,
                                            long id) {
                        if (position == 0) {
                            Intent intent = new Intent(MainActivity.this,
                                    drink_category.class);
                            startActivity(intent);
                        }
                    }
                };
        //Add the listener to the list view
        ListView listView = (ListView) findViewById(R.id.list_options);
        listView.setOnItemClickListener(itemClickListener);
    }

    private void setupFavoritesListView() {
        //Populate the list_favorites ListView from a cursor
        ListView listFavorites = (ListView) findViewById(R.id.list_favorites);
        try{
            SQLiteOpenHelper starbuzzDatabaseHelper = new StarbuzzDatabaseHelper(this);
            db = starbuzzDatabaseHelper.getReadableDatabase();
            favoritesCursor = db.query("DRINK",
                    new String[] { "_id", "NAME"},
                    "FAVORITE = 1",
                    null, null, null, null);
            CursorAdapter favoriteAdapter =
                    new SimpleCursorAdapter(MainActivity.this,
                            android.R.layout.simple_list_item_1, favoritesCursor,
                            new String[]{"NAME"},
                            new int[]{android.R.id.text1}, 0);
            listFavorites.setAdapter(favoriteAdapter);
        } catch(SQLiteException e) {
            Toast toast = Toast.makeText(this, "Database unavailable", Toast.LENGTH_SHORT);
            toast.show();
        }

        //Navigate to DrinkActivity if a drink is clicked
        listFavorites.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> listView, View v, int position, long id) {
                Intent intent = new Intent(MainActivity.this, DrinkActivity.class);
                intent.putExtra(DrinkActivity.EXTRA_DRINKID, (int) id);
                startActivity(intent);
            }
        });
    }

    @Override
    public void onRestart() {
        super.onRestart();
        Cursor newCursor = db.query("DRINK",
                new String[] { "_id", "NAME"}, "FAVORITE = 1",
                null, null, null, null);
        ListView listFavorites = (ListView) findViewById(R.id.list_favorites);
        CursorAdapter adapter = (CursorAdapter) listFavorites.getAdapter();
        adapter.changeCursor(newCursor);
        favoritesCursor = newCursor;
    }

    //Close the cursor and database in the onDestroy() method
    @Override
    public void onDestroy(){
        super.onDestroy();
        favoritesCursor.close();
        db.close();
    }
}
package com.example.chapter15;


import android.content.ContentValues;
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;

public class StarbuzzDatabaseHelper extends SQLiteOpenHelper {

    private static final String DB_NAME = "starbuzz"; // the name of our database
    private static final int DB_VERSION = 2; // the version of the database

    StarbuzzDatabaseHelper(Context context) {
        super(context, DB_NAME, null, DB_VERSION);
    }

    @Override
    public void onCreate(SQLiteDatabase db) {
        updateMyDatabase(db, 0, DB_VERSION);
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        updateMyDatabase(db, oldVersion, newVersion);
    }

    private static void insertDrink(SQLiteDatabase db, String name, String description,
                                    int resourceId) {
        ContentValues drinkValues = new ContentValues();
        drinkValues.put("NAME", name);
        drinkValues.put("DESCRIPTION", description);
        drinkValues.put("IMAGE_RESOURCE_ID", resourceId);
        //DrinkValues ("NAME": Latte, "DESCRIPTION": Espresso, "IMAGE_RESOURCE_ID": 53556)
        db.insert("DRINK", null, drinkValues);
    }

    private void updateMyDatabase(SQLiteDatabase db, int oldVersion, int newVersion) {
        if (oldVersion < 1) {
            //Just to create our table in the database
            db.execSQL("CREATE TABLE DRINK (_id INTEGER PRIMARY KEY AUTOINCREMENT, "
                    + "NAME TEXT, "
                    + "DESCRIPTION TEXT, "
                    + "IMAGE_RESOURCE_ID INTEGER);");
            //
            insertDrink(db, "Latte", "Espresso and steamed milk", R.drawable.latte);
            insertDrink(db, "Cappuccino", "Espresso, hot milk and steamed-milk foam",
                    R.drawable.cappuccino);
            insertDrink(db, "Filter", "Our best drip coffee", R.drawable.filter);
        }
        if (oldVersion < 2) {
            db.execSQL("ALTER TABLE DRINK ADD COLUMN FAVORITE NUMERIC;");
        }
    }
}