Massacre

package com.l2kstudios.festadefimdeano.view;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import com.l2kstudios.festadefimdeano.R;

import java.text.SimpleDateFormat;
import java.util.Calendar;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    private ViewHolder mViewHolder = new ViewHolder();
    private static SimpleDateFormat SIMPLE_DATE_FORMAT = new SimpleDateFormat("dd/mm/yyyy");

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

        this.mViewHolder.TextToday = findViewById(R.id.text_today);
        this.mViewHolder.TextDaysLeft = findViewById(R.id.text_days_left);
        this.mViewHolder.btnConfirmar = findViewById(R.id.btnConfirmar);

        this.mViewHolder.btnConfirmar.setOnClickListener(this);

        // Datas
        this.mViewHolder.TextToday.setText(SIMPLE_DATE_FORMAT.format(Calendar.getInstance().getTime()));
        String daysLeft = String.format("%s %s",String.valueOf(this.getDaysLeft()), getString(R.string.dias));
        this.mViewHolder.TextDaysLeft.setText(daysLeft);
    }

    @Override
    public void onClick(View v) {
        if(v.getId() == R.id.btnConfirmar){
            Intent intent = new Intent(getApplicationContext(), DetailsActivity.class);
            startActivity(intent);
        }
    }

    private int getDaysLeft(){
        // Data de Hoje
        Calendar calendarToday = Calendar.getInstance();
        int today = calendarToday.get(Calendar.DAY_OF_YEAR);
        // Dia Maximo do Ano
        Calendar calendarLastToday = Calendar.getInstance();
        int dayMax = calendarLastToday.getActualMaximum(Calendar.DAY_OF_YEAR);

        return dayMax - today;
    }


    private static class ViewHolder{
        TextView TextToday;
        TextView TextDaysLeft;
        Button btnConfirmar;
    }
}








package com.l2kstudios.festadefimdeano.view;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.CheckBox;

import com.l2kstudios.festadefimdeano.R;


public class DetailsActivity extends AppCompatActivity implements View.OnClickListener{

    private ViewHolder mViewHolder = new ViewHolder();

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

        this.mViewHolder.checkParticipate = findViewById(R.id.checkbox_participate);

    }

    @Override
    public void onClick(View v) {

    }

    private static class ViewHolder{
        CheckBox checkParticipate;
    }
}







package com.l2kstudios.festadefimdeano.data;

import android.content.Context;
import android.content.SharedPreferences;

public class SecurityPreferences {

    private SharedPreferences mSharedPreferences;

    public SecurityPreferences(Context mContext) {
        this.mSharedPreferences = mContext.getSharedPreferences("FestaFimAno", Context.MODE_PRIVATE);
    }

    public void storeString(String key,String value) {
    this.mSharedPreferences.edit().putString(key,value).apply();
    }
    public String getStoreString(String key){
    return this.mSharedPreferences.getString(key,"");
    }
}