MEMBUAT APLIKASI PEMESANAN SEDERHANA ANDROID STUDIO
Aplikasi ini dibuat untuk melengkapi tugas UTS Mata Kuliah Mobile Programming, Kelas 06TPLE002 STMIK Eresha. Fungsi aplikasi ini agar pengguna dapat memesan makanan dan mengetahui total transaksi.
1. Pertama Klik New-New Projek seperti gambar di bawah ini.
"Sesuai Keinginan kalian" dan pilih minimum versi android yang dingininkan.
4. Setelah itu edit pada bagian activity_main.xml di bagian desain dan text
Coding
package com.example.android.marko161021450147;
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=5000;
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 add Whipped Cream?"+addWhippedCream;
pricemessage+="\n add Chocolate?"+addChocolate;
pricemessage+="\n quantity"+quantity;
pricemessage+="\n Total Rp"+price;
pricemessage+="\n Thankyou";
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));
}
}
kemudian masukkan codingan di Java
package com.example.marko161021450147;
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=5000;
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 add Whipped Cream?"+addWhippedCream;
pricemessage+="\n add Chocolate?"+addChocolate;
pricemessage+="\n quantity"+quantity;
pricemessage+="\n Total Rp"+price;
pricemessage+="\n Thankyou";
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));
}
}
Semoga artikel ini bermanfaat.....
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