Appli commande de café

java commande de café

/**
 * IMPORTANT: Make sure you are using the correct package name. 
 * This example uses the package name:
 * package com.example.android.justjava
 * If you get an error when copying this code into Android studio, update it to match teh package name found
 * in the project's AndroidManifest.xml file.
 **/

package com.example.android.justjava;



import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

import java.text.NumberFormat;
/**
 * This app displays an order form to order coffee.
 */
public class MainActivity extends AppCompatActivity {
    int quantity=1 ;

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

    /**
     * this method increases the number of coffees ordered when + button is clicked
     */
    public void increment(View view) {
        if (quantity == 100) {
            // limits max number of coffee to 100 and shows toast msg if user tries to go over
            Toast.makeText(this, "You cannot have more than 100 coffees", Toast.LENGTH_SHORT).show();
            return;}
        quantity = quantity +1;
    displayQuantity(quantity);
    }
    /**
     * this method decreases the number of coffees ordered when - button is clicked
     */
    public void decrement(View view) {
        if (quantity == 1) {
            // limits min number to 1 and shows toast if user tries to go to 0
            Toast.makeText(this, "You cannot have less than 1 coffee", Toast.LENGTH_SHORT).show();
            return;
        }
        quantity = quantity - 1;
        displayQuantity(quantity);
    }
    /**
     * Calculates the price of the order based on the current quantity
     * @return the price
     */
    private int calculatePrice(boolean hasWhippedCream,boolean hasChocolate) {
        //calculate coffee base price
        int basePrice = 5;
        //adds 1 to ase price if whippedCream
        if(hasWhippedCream){
            basePrice = basePrice +1;
        }
        //addCs 2 if chocolate
        if(hasChocolate){
            basePrice =basePrice+2;
        }
        return basePrice* quantity;
    }

    /**
     * This method is called when the order button is clicked.
     * it Gets whippedCream and Chocolate values from CheckBox
     * also Gets text from EdiText field
     */
    public void submitOrder(View view) {
        CheckBox whippedCreamCheckBox = (CheckBox) findViewById(R.id.whipped_cream_check_box);
        boolean hasWhippedCream = whippedCreamCheckBox.isChecked();
        CheckBox chocolateCheckBox = (CheckBox) findViewById(R.id.chocolate_check_box);
        boolean hasChocolate = chocolateCheckBox.isChecked();
        EditText nameField = (EditText) findViewById(R.id.name_field);
        String name = nameField.getText().toString();
        int price = calculatePrice(hasWhippedCream,hasChocolate);
        String message = createOrderSummary(price, hasWhippedCream, hasChocolate, name);

        //sends email containing the order summary
        Intent intent = new Intent(Intent.ACTION_SENDTO);
        intent.setData(Uri.parse("mailto:"));
        intent.putExtra(Intent.EXTRA_SUBJECT, "Just Java order for " + name);
        intent.putExtra(Intent.EXTRA_TEXT, message);
        if (intent.resolveActivity(getPackageManager()) != null) {
            startActivity(intent);
        }
    }
    /**
     * this method creates a message that will be called fron submitOrder method
     * intake @param price and hasWhippedCream
     * @return message
     */
    private String createOrderSummary(int price, boolean hasWhippedCream, boolean hasChocolate, String name){
        String message= "Name : " + name;
        message += "\nQuantity " + quantity;
        message += "\nAdd whipped cream? " + hasWhippedCream ;
        message += "\nAdd chocolate? " + hasChocolate ;
        message += "\nTotal: $" + price ;
        message+= "\nCheers !";
        return message;
    }

    /**
     * This method displays the given quantity value on the screen.
     */
    private void displayQuantity(int quantity) {
        TextView quantityTextView = (TextView) findViewById(R.id.quantity_text_view);
        quantityTextView.setText("" + quantity);
    }

}

XML commande de café

<?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="match_parent"
    android:layout_height="match_parent">
    <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="com.example.android.justjava.MainActivity">
        <EditText
            android:id="@+id/name_field"
            android:layout_height="wrap_content"
            android:layout_width="match_parent"
            android:inputType="textCapWords"
            android:hint="Name"
            android:layout_marginBottom="8dp"/>
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:padding="8dp"
            android:text="Toppings"
            android:textAllCaps="true"
            android:textSize="16sp" />

        <CheckBox
            android:id="@+id/whipped_cream_check_box"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:paddingLeft="24dp"
            android:textSize="16sp"
            android:text="Whipped cream"/>
        <CheckBox
            android:id="@+id/chocolate_check_box"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:paddingLeft="24dp"
            android:textSize="16sp"
            android:text="Chocolate"/>
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:padding="8dp"
            android:text="Quantity"
            android:textAllCaps="true"
            android:textSize="16sp" />

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="horizontal">
            <Button
                android:id="@+id/lessCoffeeButton"
                android:layout_width="48dp"
                android:layout_height="48dp"
                android:padding="8dp"
                android:text="-"
                android:onClick="decrement"
                />
            <TextView
                android:id="@+id/quantity_text_view"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:padding="8dp"
                android:text="1"
                android:textColor="#000000"
                android:textSize="16sp"
                 />
            <Button
                android:id="@+id/moreCoffeeButton"
                android:layout_width="48dp"
                android:layout_height="48dp"
                android:padding="8dp"
                android:text="+"
                android:onClick="increment"
                />
        </LinearLayout>

        <Button
            android:id="@+id/button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:padding="8dp"
            android:text="Order"
            android:textAllCaps="true"
            android:onClick="submitOrder"
                    />

    </LinearLayout>
</ScrollView>