Back to project page bitfynd-wallet-android.
The source code is released under:
GNU General Public License
If you think the Android project bitfynd-wallet-android listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
/* * Copyright 2011-2014 the original author or authors. *//from w w w . j a v a2 s. c om * 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 de.schildbach.wallet.ui; import javax.annotation.CheckForNull; import org.bitcoinj.core.Coin; import org.bitcoinj.core.Wallet; import org.bitcoinj.core.Wallet.BalanceType; import android.app.Activity; import android.app.LoaderManager; import android.app.LoaderManager.LoaderCallbacks; import android.content.Context; import android.content.CursorLoader; import android.content.Loader; import android.content.SharedPreferences; import android.content.SharedPreferences.OnSharedPreferenceChangeListener; import android.database.Cursor; import android.net.Uri; import android.os.Build; import android.os.Bundle; import android.support.v7.view.ActionMode; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.widget.ListView; import android.widget.ResourceCursorAdapter; import android.support.v7.widget.SearchView; import android.support.v7.widget.SearchView.OnQueryTextListener; import android.widget.TextView; import de.schildbach.wallet.BuildConfig; import de.schildbach.wallet.Configuration; import de.schildbach.wallet.Constants; import de.schildbach.wallet.ExchangeRatesProvider; import de.schildbach.wallet.ExchangeRatesProvider.ExchangeRate; import de.schildbach.wallet.WalletApplication; import de.schildbach.wallet.WalletBalanceWidgetProvider; import de.schildbach.wallet.service.BlockchainState; import de.schildbach.wallet.service.BlockchainStateLoader; import de.schildbach.wallet.util.WholeStringBuilder; import de.schildbach.wallet.R; /** * @author Andreas Schildbach */ public final class ExchangeRatesFragment extends FancyListFragment implements OnSharedPreferenceChangeListener { private AbstractWalletActivity activity; private WalletApplication application; private Configuration config; private Wallet wallet; private Uri contentUri; private LoaderManager loaderManager; private ExchangeRatesAdapter adapter; private String query = null; private Coin balance = null; @CheckForNull private BlockchainState blockchainState = null; @CheckForNull private String defaultCurrency = null; private static final int ID_BALANCE_LOADER = 0; private static final int ID_RATE_LOADER = 1; private static final int ID_BLOCKCHAIN_STATE_LOADER = 2; @Override public void onAttach(final Activity activity) { super.onAttach(activity); this.activity = (AbstractWalletActivity) activity; this.application = (WalletApplication) activity.getApplication(); this.config = application.getConfiguration(); this.wallet = application.getWallet(); this.contentUri = ExchangeRatesProvider.contentUri(BuildConfig.APPLICATION_ID, false); this.loaderManager = getLoaderManager(); } @Override public void onCreate(final Bundle savedInstanceState) { super.onCreate(savedInstanceState); setRetainInstance(true); setHasOptionsMenu(Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB); adapter = new ExchangeRatesAdapter(activity); setListAdapter(adapter); loaderManager.initLoader(ID_RATE_LOADER, null, rateLoaderCallbacks); defaultCurrency = config.getExchangeCurrencyCode(); config.registerOnSharedPreferenceChangeListener(this); } @Override public void onViewCreated(final View view, final Bundle savedInstanceState) { super.onViewCreated(view, savedInstanceState); getListView().setFastScrollEnabled(true); } @Override public void onResume() { super.onResume(); loaderManager.initLoader(ID_BALANCE_LOADER, null, balanceLoaderCallbacks); loaderManager.initLoader(ID_BLOCKCHAIN_STATE_LOADER, null, blockchainStateLoaderCallbacks); updateView(); } @Override public void onPause() { loaderManager.destroyLoader(ID_BALANCE_LOADER); loaderManager.destroyLoader(ID_BLOCKCHAIN_STATE_LOADER); super.onPause(); } @Override public void onDestroy() { config.unregisterOnSharedPreferenceChangeListener(this); loaderManager.destroyLoader(ID_RATE_LOADER); super.onDestroy(); } @Override public void onCreateOptionsMenu(final Menu menu, final MenuInflater inflater) { inflater.inflate(R.menu.exchange_rates_fragment_options, menu); final SearchView searchView = (SearchView) menu.findItem(R.id.exchange_rates_options_search).getActionView(); searchView.setOnQueryTextListener(new OnQueryTextListener() { @Override public boolean onQueryTextChange(final String newText) { query = newText.trim(); if (query.isEmpty()) query = null; getLoaderManager().restartLoader(ID_RATE_LOADER, null, rateLoaderCallbacks); return true; } @Override public boolean onQueryTextSubmit(final String query) { searchView.clearFocus(); return true; } }); super.onCreateOptionsMenu(menu, inflater); } @Override public void onListItemClick(final ListView l, final View v, final int position, final long id) { final Cursor cursor = (Cursor) adapter.getItem(position); final ExchangeRate exchangeRate = ExchangeRatesProvider.getExchangeRate(cursor); activity.startSupportActionMode(new ActionMode.Callback() { @Override public boolean onCreateActionMode(final ActionMode mode, final Menu menu) { final MenuInflater inflater = mode.getMenuInflater(); inflater.inflate(R.menu.exchange_rates_context, menu); return true; } @Override public boolean onPrepareActionMode(final ActionMode mode, final Menu menu) { mode.setTitle(exchangeRate.getCurrencyCode()); mode.setSubtitle(getString(R.string.exchange_rates_fragment_source, exchangeRate.source)); return true; } @Override public boolean onActionItemClicked(final ActionMode mode, final MenuItem item) { switch (item.getItemId()) { case R.id.exchange_rates_context_set_as_default: handleSetAsDefault(exchangeRate.getCurrencyCode()); mode.finish(); return true; } return false; } @Override public void onDestroyActionMode(final ActionMode mode) { } private void handleSetAsDefault(final String currencyCode) { config.setExchangeCurrencyCode(currencyCode); WalletBalanceWidgetProvider.updateWidgets(activity, wallet); } }); } @Override public void onSharedPreferenceChanged(final SharedPreferences sharedPreferences, final String key) { if (Configuration.PREFS_KEY_EXCHANGE_CURRENCY.equals(key) || Configuration.PREFS_KEY_BTC_PRECISION.equals(key)) { defaultCurrency = config.getExchangeCurrencyCode(); updateView(); } } private void updateView() { balance = application.getWallet().getBalance(BalanceType.ESTIMATED); if (adapter != null) { final int btcShift = config.getBtcShift(); final Coin base = btcShift == 0 ? Coin.COIN : Coin.MILLICOIN; adapter.setRateBase(base); } } private final LoaderCallbacks<Cursor> rateLoaderCallbacks = new LoaderManager.LoaderCallbacks<Cursor>() { @Override public Loader<Cursor> onCreateLoader(final int id, final Bundle args) { if (query == null) return new CursorLoader(activity, contentUri, null, null, null, null); else return new CursorLoader(activity, contentUri, null, ExchangeRatesProvider.QUERY_PARAM_Q, new String[] { query }, null); } @Override public void onLoadFinished(final Loader<Cursor> loader, final Cursor data) { final Cursor oldCursor = adapter.swapCursor(data); if (data != null && oldCursor == null && defaultCurrency != null) { final int defaultCurrencyPosition = findCurrencyCode(data, defaultCurrency); if (defaultCurrencyPosition >= 0) getListView().setSelection(defaultCurrencyPosition); // scroll to selection } setEmptyText(WholeStringBuilder.bold(getString(query != null ? R.string.exchange_rates_fragment_empty_search : R.string.exchange_rates_fragment_empty_text))); } @Override public void onLoaderReset(final Loader<Cursor> loader) { } private int findCurrencyCode(final Cursor cursor, final String currencyCode) { final int currencyCodeColumn = cursor.getColumnIndexOrThrow(ExchangeRatesProvider.KEY_CURRENCY_CODE); cursor.moveToPosition(-1); while (cursor.moveToNext()) { if (cursor.getString(currencyCodeColumn).equals(currencyCode)) return cursor.getPosition(); } return -1; } }; private final LoaderCallbacks<Coin> balanceLoaderCallbacks = new LoaderManager.LoaderCallbacks<Coin>() { @Override public Loader<Coin> onCreateLoader(final int id, final Bundle args) { return new WalletBalanceLoader(activity, wallet); } @Override public void onLoadFinished(final Loader<Coin> loader, final Coin balance) { ExchangeRatesFragment.this.balance = balance; updateView(); } @Override public void onLoaderReset(final Loader<Coin> loader) { } }; private final LoaderCallbacks<BlockchainState> blockchainStateLoaderCallbacks = new LoaderManager.LoaderCallbacks<BlockchainState>() { @Override public Loader<BlockchainState> onCreateLoader(final int id, final Bundle args) { return new BlockchainStateLoader(activity); } @Override public void onLoadFinished(final Loader<BlockchainState> loader, final BlockchainState blockchainState) { ExchangeRatesFragment.this.blockchainState = blockchainState; updateView(); } @Override public void onLoaderReset(final Loader<BlockchainState> loader) { } }; private final class ExchangeRatesAdapter extends ResourceCursorAdapter { private Coin rateBase = Coin.COIN; private ExchangeRatesAdapter(final Context context) { super(context, R.layout.exchange_rate_row, null, true); } public void setRateBase(final Coin rateBase) { this.rateBase = rateBase; notifyDataSetChanged(); } @Override public void bindView(final View view, final Context context, final Cursor cursor) { final ExchangeRate exchangeRate = ExchangeRatesProvider.getExchangeRate(cursor); final boolean isDefaultCurrency = exchangeRate.getCurrencyCode().equals(defaultCurrency); view.setBackgroundResource(isDefaultCurrency ? R.color.bg_list_selected : R.color.bg_list); final View defaultView = view.findViewById(R.id.exchange_rate_row_default); defaultView.setVisibility(isDefaultCurrency ? View.VISIBLE : View.INVISIBLE); final TextView currencyCodeView = (TextView) view.findViewById(R.id.exchange_rate_row_currency_code); currencyCodeView.setText(exchangeRate.getCurrencyCode()); final CurrencyTextView rateView = (CurrencyTextView) view.findViewById(R.id.exchange_rate_row_rate); rateView.setFormat(Constants.LOCAL_FORMAT); rateView.setAmount(exchangeRate.rate.coinToFiat(rateBase)); final CurrencyTextView walletView = (CurrencyTextView) view.findViewById(R.id.exchange_rate_row_balance); walletView.setFormat(Constants.LOCAL_FORMAT); if (blockchainState == null || !blockchainState.replaying) { walletView.setAmount(exchangeRate.rate.coinToFiat(balance)); walletView.setStrikeThru(Constants.TEST); } else { walletView.setText("n/a"); walletView.setStrikeThru(false); } walletView.setTextColor(getResources().getColor(R.color.fg_less_significant)); } } }