UTS Dawud Al Fauzi 161011401110

DAWUD AL FAUZI
161011401110

Assalamualaikum. Wr.Wb.

Berikut ini adalah contoh aplikasi pemesanan di  DAUD Cafe
adapun software yang saya gunakan adalah android studio
baiklah kita langsung saja


ini adalah source code nya

activity_main.xml

 /

<?xml version="1.0" encoding="utf-8"?>

<ScrollView android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    xmlns:android="http://schemas.android.com/apk/res/android">

    <LinearLayout xmlns:app="http://schemas.android.com/apk/res-auto"

        xmlns:tools="http://schemas.android.com/tools"

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:orientation="vertical"

        android:padding="30dp"

        tools:context=".MainActivity">


        <EditText

            android:id="@+id/edt_name"

            android:layout_width="match_parent"

            android:layout_height="match_parent"

            android:hint="Nama Costumer"

            android:inputType="text" />

        <TextView

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:text="Tambahkan Topping"

            android:textSize="25dp"/>


        <RadioButton

            android:id="@+id/WhippedCream_checkbox"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:paddingLeft="16dp"

            android:text="Almond Khas Cafe Daud"

            android:textSize="15sp" />



        <RadioButton


            android:id="@+id/Chocolate_checkbox"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:paddingLeft="16dp"

            android:text="Special Mix Kacang Mede"

            android:textSize="15sp" />


        <View

            android:layout_marginTop="10dp"

            android:layout_width="match_parent"

            android:layout_height="2dp"

            android:background="@color/colorAccent"/>


        <TextView

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:text="jumlah"

            android:textSize="25dp"

            android:textAllCaps="true"

            android:layout_marginBottom="16dp"

            app:layout_constraintBottom_toBottomOf="parent"

            app:layout_constraintLeft_toLeftOf="parent"

            app:layout_constraintRight_toRightOf="parent"

            app:layout_constraintTop_toTopOf="parent" />

        <LinearLayout

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:orientation="horizontal">

            <Button

                android:layout_width="48dp"

                android:onClick="increment"

                android:text="+"


                android:layout_height="48dp" />

            <TextView

                android:textColor="#212121"

                android:layout_gravity="center"

                android:layout_width="wrap_content"

                android:layout_height="wrap_content"

                android:text="0"

                android:paddingRight="8dp"

                android:paddingLeft="8dp"

                android:id="@+id/quantity_textview"

                android:textSize="25dp"/>

            <Button

                android:layout_width="48dp"

                android:onClick="decrement"

                android:text="-"

                android:layout_height="48dp" />

        </LinearLayout>


        <View

            android:layout_marginTop="10dp"

            android:layout_width="match_parent"

            android:layout_height="2dp"

            android:background="@color/colorAccent"/>




        <TextView

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:text="Harga"

            android:textSize="30dp"

            android:textAllCaps="true"

            android:layout_marginBottom="16dp"/>

        <TextView

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:text="0"

            android:textColor="#212121"

            android:id="@+id/price_textview"

            android:textSize="25dp"/>


        <Button

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_marginBottom="16dp"

            android:onClick="Submitorder"

            android:text="Order Now" />


    </LinearLayout>

</ScrollView>

maka akan tampilan seperti ini

Selanjutnya adalah ....

tulis kode java ini

mainActivity.java

package com.example.programuts;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

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;

import static android.R.string.no;

import static android.os.Build.VERSION_CODES.N;


/** * This app displays an order form to order coffee. 

*/public class MainActivity extends AppCompatActivity {

    int quantity=0;

    @Override    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

    }

    public void increment(View view){//perintah tombol tambah        

    if(quantity==100){

            Toast.makeText(this,"pesanan maximal 100",Toast.LENGTH_SHORT).show();

            return;

        }

        quantity = quantity+1 ;

        display(quantity);

    }

    public void decrement(View view){//perintah tombol tambah       

     if (quantity==1){Toast.makeText(this,"pesanan minimal 1",

    Toast.LENGTH_SHORT).show();

            return;

        }

        quantity = quantity -1;

        display(quantity);

    }

    public void Submitorder(View view) {

        EditText nameEditText=(EditText)findViewById(R.id.edt_name);

        String name=nameEditText.getText().toString();

        Log.v("MainActivity","Nama:"+name);

        CheckBox whippedcreamChekBox= (CheckBox) findViewById(R.id.WhippedCream_checkbox);

        boolean haswhippedcream=whippedcreamChekBox.isChecked();//mengidentifikasi check        

        Log.v("MainActivity","has whippedcream:"+haswhippedcream);

        CheckBox chocolateChekBox= (CheckBox) findViewById(R.id.Chocolate_checkbox);

        boolean haschocolate=chocolateChekBox.isChecked();//mengidentifikasi check        

        Log.v("MainActivity","has whippedcream:"+haschocolate);

        int price=calculateprice(haswhippedcream,haschocolate);




        //memanggil method jumlah harga        

String pricemessage=createOrderSummary(price,name,haswhippedcream,haschocolate);
displayMessage(pricemessage);

    }

    private int calculateprice(boolean addwhipedcream,boolean addchocolate)




    {//jumlah pesanan * harga        int harga=20000;

        if(addwhipedcream){

            harga=harga+1000;//harga tambahan toping        }

        if (addchocolate){

            harga=harga+2000;

        }

        return quantity * harga;
}

    private String createOrderSummary(int price, String name, boolean addChocolate, 

boolean addWhippedCream)





 {//hasil pemesanan        String pricemessage=" Nama = "+name;


        pricemessage+="\n Tambahkan Coklat =" +addWhippedCream;


        pricemessage+="\n Tambahkan Krim =" +addChocolate;


        pricemessage+="\n Jumlah Pemesanan =" +quantity;


        pricemessage+="\n Total = Rp " +price;


        pricemessage+="\n Terimakasih";


        return  pricemessage;

}


    //method ini untuk mencetak hasil perintah yang  

    di tampilkan dengan inisial quantity_textview di textview 0    


private void displayMessage(String message) {


        TextView priceTextView = (TextView) findViewById(R.id.price_textview);


        priceTextView.setText(message);

}

    private void display(int number) {


        TextView quantityTextView = (TextView) findViewById(R.id.quantity_textview);


        quantityTextView.setText("" + number);

}

    private void displayPrice(int number) {


        TextView priceTextView = (TextView) findViewById(R.id.price_textview);


        priceTextView.setText(NumberFormat.getCurrencyInstance().format(number));

}


}



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