Java tutorial
/* * Copyright (C) 2012-2016 The Android Money Manager Ex Project Team * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 3 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package com.money.manager.ex.investment; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.database.Cursor; import android.os.Bundle; import android.text.TextUtils; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.AdapterView; import android.widget.CursorAdapter; import android.widget.SpinnerAdapter; import com.codetroopers.betterpickers.calendardatepicker.CalendarDatePickerDialogFragment; import com.money.manager.ex.Constants; import com.money.manager.ex.R; import com.money.manager.ex.common.AmountInputDialog; import com.money.manager.ex.common.BaseFragmentActivity; import com.money.manager.ex.common.events.AmountEnteredEvent; import com.money.manager.ex.core.UIHelper; import com.money.manager.ex.datalayer.AccountRepository; import com.money.manager.ex.datalayer.StockRepository; import com.money.manager.ex.domainmodel.Account; import com.money.manager.ex.domainmodel.Stock; import com.money.manager.ex.servicelayer.AccountService; import com.money.manager.ex.utils.MmxDateTimeUtils; import com.money.manager.ex.utils.SpinnerHelper; import com.money.manager.ex.view.RobotoTextView; import com.money.manager.ex.view.RobotoTextViewFontIcon; import org.greenrobot.eventbus.Subscribe; import org.joda.time.DateTime; import java.util.Calendar; import info.javaperformance.money.MoneyFactory; /** * Edit investment transaction (stock purchase). */ public class InvestmentTransactionEditActivity extends BaseFragmentActivity { public static final String ARG_ACCOUNT_ID = "InvestmentTransactionEditActivity:AccountId"; public static final String ARG_STOCK_ID = "InvestmentTransactionEditActivity:StockId"; public static final String DATEPICKER_TAG = "datepicker"; public static final int ID_NUM_SHARES = 1; public static final int ID_PURCHASE_PRICE = 2; public static final int ID_COMMISSION = 3; public static final int ID_CURRENT_PRICE = 4; private boolean mDirty = false; private Account mAccount; private Stock mStock; private InvestmentTransactionViewHolder mViewHolder; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_investment_transaction_edit); // this handles OK/Cancel button clicks in the toolbar. showStandardToolbarActions(); // load account & currency Intent intent = getIntent(); if (intent != null) { int accountId = intent.getIntExtra(ARG_ACCOUNT_ID, Constants.NOT_SET); if (accountId != Constants.NOT_SET) { AccountRepository repository = new AccountRepository(this); mAccount = repository.load(accountId); } int stockId = intent.getIntExtra(ARG_STOCK_ID, Constants.NOT_SET); if (stockId != Constants.NOT_SET) { StockRepository repo = new StockRepository(this); mStock = repo.load(stockId); } else { mStock = Stock.create(); if (mAccount != null) { mStock.setHeldAt(mAccount.getId()); } } } initializeForm(); } @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_edit_investment_transaction, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically e clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. // int id = item.getItemId(); // if (id == R.id.action_settings) { // return true; // } return super.onOptionsItemSelected(item); } @Override public void onBackPressed() { onActionCancelClick(); } @Override public boolean onActionCancelClick() { setResult(Activity.RESULT_CANCELED); finish(); return true; } @Override public boolean onActionDoneClick() { if (save()) { // set result ok and finish activity setResult(RESULT_OK); finish(); return true; } else { return false; } } // Private private void initializeForm() { View rootView = this.findViewById(R.id.content); mViewHolder = new InvestmentTransactionViewHolder(rootView); initDateControl(mViewHolder); initAccountSelectors(mViewHolder); initNumberOfShares(mViewHolder); initPurchasePrice(); initCommission(); initCurrentPrice(); displayStock(mStock, mViewHolder); } public void setDirty(boolean dirty) { mDirty = dirty; } /** * Raised after the amount has been entered in the number input binaryDialog. */ @Subscribe public void onEvent(AmountEnteredEvent event) { int id = Integer.parseInt(event.requestId); switch (id) { case ID_NUM_SHARES: mStock.setNumberOfShares(event.amount.toDouble()); showNumberOfShares(); showValue(); break; case ID_PURCHASE_PRICE: mStock.setPurchasePrice(event.amount); showPurchasePrice(); if (mStock.getCurrentPrice().isZero()) { mStock.setCurrentPrice(event.amount); showCurrentPrice(); // recalculate value showValue(); } break; case ID_COMMISSION: mStock.setCommission(event.amount); showCommission(); break; case ID_CURRENT_PRICE: mStock.setCurrentPrice(event.amount); showCurrentPrice(); showValue(); break; } } /* Private */ private void collectData() { String stockName = mViewHolder.stockNameEdit.getText().toString().trim(); mStock.setName(stockName); // Symbols are always uppercase. String symbol = mViewHolder.symbolEdit.getText().toString().trim().replace(" ", "").toUpperCase(); mStock.setSymbol(symbol); mStock.setNotes(mViewHolder.notesEdit.getText().toString()); } private void displayStock(Stock stock, InvestmentTransactionViewHolder viewHolder) { if (mAccount == null) return; // Date viewHolder.dateView.setText(stock.getPurchaseDate().toString(Constants.LONG_DATE_PATTERN)); // Account. Cursor cursor = ((CursorAdapter) viewHolder.accountSpinner.getAdapter()).getCursor(); int accountIndex = SpinnerHelper.getPosition(mAccount.getName(), Account.ACCOUNTNAME, cursor); if (accountIndex >= 0) { viewHolder.accountSpinner.setSelection(accountIndex, true); } viewHolder.stockNameEdit.setText(stock.getName()); viewHolder.symbolEdit.setText(stock.getSymbol()); showNumberOfShares(); showPurchasePrice(); viewHolder.notesEdit.setText(stock.getNotes()); showCommission(); showCurrentPrice(); showValue(); } private void setDate(DateTime dateTime) { setDirty(true); mStock.setPurchaseDate(dateTime); showDate(dateTime); } /** * Initialize account selectors. */ private void initAccountSelectors(final InvestmentTransactionViewHolder viewHolder) { Context context = this; // Account list as the data source to populate the drop-downs. AccountService accountService = new AccountService(context); accountService.loadInvestmentAccountsToSpinner(viewHolder.accountSpinner, false); // AccountRepository accountRepository = new AccountRepository(context); final Integer accountId = mStock.getHeldAt(); // if (accountId != null) { // addMissingAccountToSelectors(accountRepository, accountId); // } AdapterView.OnItemSelectedListener listener = new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { SpinnerAdapter adapter = viewHolder.accountSpinner.getAdapter(); Cursor cursor = (Cursor) adapter.getItem(position); Account account = Account.from(cursor); if (!account.getId().equals(accountId)) { setDirty(true); mStock.setHeldAt(account.getId()); } } @Override public void onNothingSelected(AdapterView<?> parent) { } }; viewHolder.accountSpinner.setOnItemSelectedListener(listener); } private void initCommission() { View.OnClickListener onAmountClick = new View.OnClickListener() { @Override public void onClick(View v) { AmountInputDialog dialog = AmountInputDialog.getInstance(ID_COMMISSION, mStock.getCommission(), mAccount.getCurrencyId()); dialog.show(getSupportFragmentManager(), dialog.getClass().getSimpleName()); } }; RobotoTextView purchasePriceView = (RobotoTextView) this.findViewById(R.id.commissionView); purchasePriceView.setOnClickListener(onAmountClick); } private void initCurrentPrice() { View.OnClickListener onAmountClick = new View.OnClickListener() { @Override public void onClick(View v) { AmountInputDialog dialog = AmountInputDialog.getInstance(ID_CURRENT_PRICE, mStock.getCurrentPrice(), mAccount.getCurrencyId(), false); dialog.show(getSupportFragmentManager(), dialog.getClass().getSimpleName()); } }; RobotoTextView purchasePriceView = (RobotoTextView) this.findViewById(R.id.currentPriceView); purchasePriceView.setOnClickListener(onAmountClick); } private void initDateControl(final InvestmentTransactionViewHolder viewHolder) { // Purchase Date viewHolder.dateView.setOnClickListener(new View.OnClickListener() { CalendarDatePickerDialogFragment.OnDateSetListener listener = new CalendarDatePickerDialogFragment.OnDateSetListener() { @Override public void onDateSet(CalendarDatePickerDialogFragment dialog, int year, int monthOfYear, int dayOfMonth) { setDirty(true); DateTime dateTime = MmxDateTimeUtils.from(year, monthOfYear + 1, dayOfMonth); viewHolder.dateView.setText(dateTime.toString(Constants.LONG_DATE_PATTERN)); } }; @Override public void onClick(View v) { Calendar calendar = Calendar.getInstance(); calendar.setTime(mStock.getPurchaseDate().toDate()); CalendarDatePickerDialogFragment datePicker = new CalendarDatePickerDialogFragment() .setFirstDayOfWeek(MmxDateTimeUtils.getFirstDayOfWeek()).setOnDateSetListener(listener) .setPreselectedDate(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH)); if (new UIHelper(InvestmentTransactionEditActivity.this).isDarkTheme()) { datePicker.setThemeDark(); } datePicker.show(getSupportFragmentManager(), DATEPICKER_TAG); } }); // prev/next day viewHolder.previousDayButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { DateTime dateTime = mStock.getPurchaseDate().minusDays(1); setDate(dateTime); } }); viewHolder.nextDayButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { DateTime dateTime = mStock.getPurchaseDate().plusDays(1); setDate(dateTime); } }); } private void initNumberOfShares(InvestmentTransactionViewHolder viewHolder) { View.OnClickListener onAmountClick = new View.OnClickListener() { @Override public void onClick(View v) { AmountInputDialog dialog = AmountInputDialog.getInstance(ID_NUM_SHARES, MoneyFactory.fromDouble(mStock.getNumberOfShares()), null, false); dialog.show(getSupportFragmentManager(), dialog.getClass().getSimpleName()); } }; if (viewHolder.numSharesView == null) return; viewHolder.numSharesView.setOnClickListener(onAmountClick); } private void initPurchasePrice() { View.OnClickListener onAmountClick = new View.OnClickListener() { @Override public void onClick(View v) { // validation if (mAccount == null) return; AmountInputDialog dialog = AmountInputDialog.getInstance(ID_PURCHASE_PRICE, mStock.getPurchasePrice(), mAccount.getCurrencyId(), false); dialog.show(getSupportFragmentManager(), dialog.getClass().getSimpleName()); } }; RobotoTextView view = (RobotoTextView) this.findViewById(R.id.purchasePriceView); view.setOnClickListener(onAmountClick); } private void showCommission() { RobotoTextView view = (RobotoTextView) this.findViewById(R.id.commissionView); if (view == null) return; // todo: format the number of shares based on selected locale. view.setText(mStock.getCommission().toString()); } private void showCurrentPrice() { RobotoTextView view = (RobotoTextView) this.findViewById(R.id.currentPriceView); // todo: format the number of shares based on selected locale. view.setText(mStock.getCurrentPrice().toString()); } private void showNumberOfShares() { RobotoTextViewFontIcon view = (RobotoTextViewFontIcon) this.findViewById(R.id.numSharesView); if (view == null) return; // todo: format the number of shares based on selected locale? view.setText(mStock.getNumberOfShares().toString()); } private void showPurchasePrice() { RobotoTextView view = (RobotoTextView) this.findViewById(R.id.purchasePriceView); // todo: format the number of shares based on selected locale. view.setText(mStock.getPurchasePrice().toString()); } private void showValue() { RobotoTextView view = (RobotoTextView) this.findViewById(R.id.valueView); //mViewHolder. view.setText(mStock.getValue().toString()); } private boolean save() { collectData(); if (!validate()) return false; // update StockRepository repository = new StockRepository(getApplicationContext()); if (mStock.getId() != null) { repository.save(mStock); } else { repository.insert(mStock); } return true; } private void showDate(DateTime date) { mViewHolder.dateView.setText(date.toString(Constants.LONG_DATE_PATTERN)); } private boolean validate() { // symbol must not be empty. if (TextUtils.isEmpty(mStock.getSymbol())) { new UIHelper(this).showToast(getString(R.string.symbol_required)); return false; } // number of shares, price? return true; } }