Essay: Using Gassystem1 with Android



package com.example.kingsman.gassystem1;

import android.app.DatePickerDialog;

import android.app.TimePickerDialog;

import android.icu.util.Calendar;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

import android.widget.AdapterView;

import android.widget.ArrayAdapter;

import android.widget.Button;

import android.widget.DatePicker;

import android.widget.Spinner;

import android.widget.TextView;

import android.widget.TimePicker;

import android.text.format.DateFormat;

import android.widget.Toast;

import android.content.Intent;

import com.firebase.client.DataSnapshot;

import com.firebase.client.Firebase;

import com.firebase.client.FirebaseError;

import com.firebase.client.ValueEventListener;

import com.pusher.pushnotifications.PushNotifications;

import java.text.SimpleDateFormat;

import java.util.Date;

import java.text.DecimalFormat;

import java.text.NumberFormat;

public class Main2Activity extends AppCompatActivity implements

   DatePickerDialog.OnDateSetListener, TimePickerDialog.OnTimeSetListener,

   AdapterView.OnItemSelectedListener{

   Button btn_pick, btn_order, btn_CancelOrder;

   TextView textViewDate, textViewSupplier, textOrderHistory;

   int day,month, year, hour, minute;

   int dayFinal,monthFinal,yearFinal,hourFinal,minuteFinal;

   Date currenttime = new Date();

   private String suppliername;

   Firebase firebaseOrderText;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

   super.onCreate(savedInstanceState);

   setContentView(R.layout.activity_main2);

   btn_pick = (Button) findViewById(R.id.btn_pick);

   //textViewDate = (TextView) findViewById(R.id.textViewDate) ;

   textViewSupplier= (TextView) findViewById(R.id.textViewSupplier) ;

   //textOrderHistory = (TextView) findViewById(R.id.txt_order_history) ;

   btn_order= (Button) findViewById(R.id.btnOrder);

   btn_CancelOrder= (Button) findViewById(R.id.btnCancelOrder);

   btn_pick.setOnClickListener(new View.OnClickListener() {

  @Override

  public void onClick (View view) {

   Calendar c = Calendar.getInstance();

   year = c.get(Calendar.YEAR);

   month = c.get(Calendar.MONTH);

   day = c.get(Calendar.DAY_OF_MONTH);

   DatePickerDialog datePickerDialog = new DatePickerDialog(Main2Activity.this,Main2Activity.this,year,month,day);

   datePickerDialog.show();

  }

   });

   Spinner mySpinner = (Spinner) findViewById(R.id.spinner);

   ArrayAdapter<String> myAdapter = new ArrayAdapter<String>(Main2Activity.this,

   android.R.layout.simple_list_item_1, getResources().getStringArray(R.array.names));

   myAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

   mySpinner.setAdapter(myAdapter);

   mySpinner.setOnItemSelectedListener(this);

    }

    @Override

    public void onDateSet(DatePicker view, int i, int i1, int i2) {

   yearFinal =i;

   monthFinal = i1+1;

   dayFinal = i2;

   String.format("%04d", yearFinal);

   String.format("%02d", monthFinal);

   String.format("%02d", dayFinal);

   Calendar c = Calendar.getInstance();

   hour = c.get(Calendar.HOUR_OF_DAY);

   minute = c.get(Calendar.MINUTE);

   TimePickerDialog timePickerDialog = new TimePickerDialog(Main2Activity.this, Main2Activity.this,hour,minute,DateFormat.is24HourFormat(this));

   timePickerDialog.show();

    }

    @Override

    public void onTimeSet(TimePicker view, int i, int i1) {

   hourFinal =i;

   minuteFinal =i1;

   String.format("%02d", hourFinal);

   String.format("%02d", minuteFinal);

   //textViewDate.setText("year: " + yearFinal + "n" +

   //  "month: " + monthFinal + "n" +

   //  "day: " + dayFinal + "n" +

   //  "hour: " + hourFinal + "n" +

   //  "minute: " + minuteFinal);

   Toast.makeText(getBaseContext(), "Date: "+ dayFinal + "/" +monthFinal + "/" + yearFinal + "n" + "Time: " + hourFinal + "(24hr format)" ,Toast.LENGTH_SHORT).show();

    }

    @Override

    public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {

   String text = parent.getItemAtPosition(position).toString();

   suppliername = parent.getItemAtPosition(position).toString();

   Toast.makeText(parent.getContext(),"Selected Favourite Supplier :" + text,Toast.LENGTH_SHORT).show();

   textViewSupplier.setText("Selected Favourite Supplier :" + text);

    }

    @Override

    public void onNothingSelected(AdapterView<?> parent) {

    }

    @Override

    protected  void onStart() {

   super.onStart();

   textOrderHistory= (TextView) findViewById(R.id.txt_order_history);

   firebaseOrderText = new Firebase("https://gassystem1-be854.firebaseio.com/ordertext");

   firebaseOrderText.addValueEventListener(new ValueEventListener() {

  @Override

  public void onDataChange(DataSnapshot dataSnapshot) {

   String text = dataSnapshot.getValue(String.class);

   textOrderHistory.setText(text);

  }

  @Override

  public void onCancelled(FirebaseError firebaseError) {

  }

   });

   btn_order.setOnClickListener(new View.OnClickListener() {

  @Override

  public void onClick(View v) {

   if (yearFinal == 0) {

  firebaseOrderText.setValue("Please select date before proceed");

   } else {

   firebaseOrderText.setValue("Supplier Name: " + suppliername + "n" + "Date Ordered: " + currenttime + "n" +

  "Gas Arrival Date: " + dayFinal + "/" + monthFinal + "/" + yearFinal + "n" +

  "Gas Arrival Time: " + hourFinal + ":" + minuteFinal + "(hour:minute)");

  Toast.makeText(Main2Activity.this, "Successfully Ordered", Toast.LENGTH_SHORT).show();

   }

  }

   });

   btn_CancelOrder.setOnClickListener(new View.OnClickListener() {

  @Override

  public void onClick(View v) {

   firebaseOrderText.setValue("Currently No Order");

   Toast.makeText(Main2Activity.this, "Successfully Cancel Ordered", Toast.LENGTH_SHORT).show();

  }

   });

    }

}