Android Open Source - FastBudget3 Expense Activity

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License

The source code is released under:

GNU General Public License

Java Source Code

package de.splitstudio.fastbudget3;
/*from   ww  w  . ja va 2s .c o  m*/
import static de.splitstudio.utils.NumberUtils.formatAsDecimal;
import static de.splitstudio.utils.NumberUtils.parseCent;

import java.text.ParseException;
import java.util.Date;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

import com.db4o.ObjectContainer;

import de.splitstudio.fastbudget3.db.Category;
import de.splitstudio.fastbudget3.db.CategoryDao;
import de.splitstudio.fastbudget3.db.Expense;
import de.splitstudio.fastbudget3.db.ExpenseDao;
import de.splitstudio.fastbudget3.enums.Extras;
import de.splitstudio.utils.db.Database;
import de.splitstudio.utils.view.Calculator;
import de.splitstudio.utils.view.DatePickerButtons;

public class ExpenseActivity extends Activity {

  private static final String TAG = ExpenseActivity.class.getSimpleName();

  Category category;

  private Expense expense;

  private ExpenseDao expenseDao;
  private CategoryDao categoryDao;

  @Override
  protected void onCreate(Bundle bundle) {
    super.onCreate(bundle);
    if (!getIntent().hasExtra(Extras.CategoryName.name())) {
      finish();
      return;
    }

    String categoryName = getIntent().getExtras().getString(Extras.CategoryName.name());
    setContentView(R.layout.expense_activity);
    setTitle(getString(R.string.title_expense, categoryName));

    ObjectContainer db = Database.getInstance(this);
    expenseDao = new ExpenseDao(db);
    categoryDao = new CategoryDao(db);
    category = categoryDao.findByName(categoryName);
    expense = loadExpense();

    fillView();
  }

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

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
    case (R.id.save):
      save();
      return true;
    case (R.id.cancel):
      cancel();
      return true;
    default:
      return super.onOptionsItemSelected(item);
    }
  }

  public void cancel() {
    setResult(RESULT_CANCELED);
    finish();
  }

  public void save() {
    Calculator calculator = (Calculator) findViewById(R.id.calculator);
    DatePickerButtons datePickerButtons = (DatePickerButtons) findViewById(R.id.date_picker);
    EditText descriptionEdit = (EditText) findViewById(R.id.description);

    try {
      expense.amount = parseCent(calculator.getAmount());
      expense.date = datePickerButtons.getDate().getTime();
      expense.description = descriptionEdit.getText().toString();

      category.add(expense);
      categoryDao.store(category);
      Log.d(TAG, "Persisted expense in db: " + expense);
      setResult(RESULT_OK);
      finish();
    } catch (ParseException e) {
      Toast.makeText(this, R.string.error_invalid_number, Toast.LENGTH_LONG).show();
    }
  }

  private Expense loadExpense() {
    if (isUpdating()) {
      String uuid = getIntent().getExtras().getString(Extras.Uuid.name());
      Log.d(TAG, "fill expense by loading its values from db with uuid " + uuid);
      return expenseDao.findByUuid(uuid);
    }
    Log.d(TAG, "no uuid given, will create a new expense");
    return new Expense(new Date());
  }

  private boolean isUpdating() {
    return getIntent().getExtras().containsKey(Extras.Uuid.name());
  }

  private void fillView() {
    AutoCompleteTextView description = (AutoCompleteTextView) findViewById(R.id.description);
    description.setText(expense.description);
    description.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, expenseDao
        .findAllDescriptions()));
    focusAmountOnSmallScreens();

    ((DatePickerButtons) findViewById(R.id.date_picker)).setAndUpdateDate(expense.date);
    if (isUpdating()) {
      ((TextView) findViewById(R.id.calculator_amount)).setText(formatAsDecimal(expense.amount));
    }
  }

  private void focusAmountOnSmallScreens() {
    if (getResources().getDisplayMetrics().heightPixels < 600) {
      ((TextView) findViewById(R.id.calculator_amount)).requestFocus();
    }
  }
}

Java Source Code List

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