Refactored Donate

The Donate activity can now be completely refactored to make use of the Base class.

public class Donate extends Base {

    private Button          donateButton;
    private RadioGroup      paymentMethod;
    private ProgressBar     progressBar;
    private NumberPicker    amountPicker;
    private EditText        amountText;
    private TextView        amountTotal;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_donate);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                        .setAction("Action", null).show();
            }
        });

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

        paymentMethod = (RadioGroup)   findViewById(R.id.paymentMethod);
        progressBar   = (ProgressBar)  findViewById(R.id.progressBar);
        amountPicker  = (NumberPicker) findViewById(R.id.amountPicker);
        amountText    = (EditText)     findViewById(R.id.paymentAmount);
        amountTotal   = (TextView)     findViewById(R.id.totalSoFar);

        amountPicker.setMinValue(0);
        amountPicker.setMaxValue(1000);
        progressBar.setMax(10000);
        amountTotal.setText("$0");
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_donate, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item)
    {
        switch (item.getItemId())
        {
            case R.id.menuReport : startActivity (new Intent(this, Report.class));
                break;
        }
        return super.onOptionsItemSelected(item);
    }

    public void donateButtonPressed (View view)
    {
        String method = paymentMethod.getCheckedRadioButtonId() == R.id.PayPal ? "PayPal" : "Direct";
        int donatedAmount =  amountPicker.getValue();
        if (donatedAmount == 0)
        {
            String text = amountText.getText().toString();
            if (!text.equals(""))
                donatedAmount = Integer.parseInt(text);
        }
        if (donatedAmount > 0)
        {
            newDonation(new Donation(donatedAmount, method));
            progressBar.setProgress(totalDonated);
            String totalDonatedStr = "$" + totalDonated;
            amountTotal.setText(totalDonatedStr);
        }
    }
}

Replace your version with this and execute it - fix any missing import statements necessary.

Look carefully at the changes to this version over the previous attempt.