Base Class Refactoring

The Base activity can now be completely refactored to make use of the DonationApp object. You WILL have errors at the end of this step, due to referencing our (as yet missing) database classes - but we'll fix those in the next few steps.

This is our new Base class

package ie.app.activities;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.os.Bundle;

import ie.app.R;
import ie.app.main.DonationApp;

public class Base extends AppCompatActivity {

    public DonationApp app;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        app = (DonationApp) getApplication();

        app.dbManager.open();
        app.dbManager.setTotalDonated(this);
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        app.dbManager.close();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu)
    {
        getMenuInflater().inflate(R.menu.menu_donate, menu);
        return true;
    }

    @Override
    public boolean onPrepareOptionsMenu (Menu menu){
        super.onPrepareOptionsMenu(menu);
        MenuItem report = menu.findItem(R.id.menuReport);
        MenuItem donate = menu.findItem(R.id.menuDonate);
        MenuItem reset = menu.findItem(R.id.menuReset);

        if(app.dbManager.getAll().isEmpty())
        {
            report.setEnabled(false);
            reset.setEnabled(false);
        }
        else {
            report.setEnabled(true);
            reset.setEnabled(true);
        }
        if(this instanceof Donate){
            donate.setVisible(false);
            if(!app.dbManager.getAll().isEmpty())
            {
                report.setVisible(true);
                reset.setEnabled(true);
            }
        }
        else {
            report.setVisible(false);
            donate.setVisible(true);
            reset.setVisible(false);
        }

        return true;
    }

    public void report(MenuItem item)
    {
        startActivity (new Intent(this, Report.class));
    }

    public void donate(MenuItem item)
    {
        startActivity (new Intent(this, Donate.class));
    }

    public void reset(MenuItem item) {}
}