Android Open Source - bitfynd-wallet-android Wallet Balance Widget Provider

• Back to Development/wallet  ↑

From Project

Back to project page bitfynd-wallet-android.

License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * Copyright 2011-2014 the original author or authors.
 *//from w  w  w.  j  a v  a 2  s.  co m
 * 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;

import java.lang.reflect.Method;

import org.bitcoinj.core.Coin;
import org.bitcoinj.core.Wallet;
import org.bitcoinj.core.Wallet.BalanceType;
import org.bitcoinj.utils.Fiat;
import org.bitcoinj.utils.MonetaryFormat;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.text.Spannable;
import android.text.style.ForegroundColorSpan;
import android.view.View;
import android.widget.RemoteViews;
import de.schildbach.wallet.ExchangeRatesProvider.ExchangeRate;
import de.schildbach.wallet.ui.RequestCoinsActivity;
import de.schildbach.wallet.ui.SendCoinsQrActivity;
import de.schildbach.wallet.ui.WalletActivity;
import de.schildbach.wallet.ui.send.SendCoinsActivity;
import de.schildbach.wallet.util.GenericUtils;
import de.schildbach.wallet.util.MonetarySpannable;
import de.schildbach.wallet.R;

/**
 * @author Andreas Schildbach
 */
public class WalletBalanceWidgetProvider extends AppWidgetProvider
{
  private static final Logger log = LoggerFactory.getLogger(WalletBalanceWidgetProvider.class);

  @Override
  public void onUpdate(final Context context, final AppWidgetManager appWidgetManager, final int[] appWidgetIds)
  {
    final WalletApplication application = (WalletApplication) context.getApplicationContext();
    final Coin balance = application.getWallet().getBalance(BalanceType.ESTIMATED);

    updateWidgets(context, appWidgetManager, appWidgetIds, balance);
  }

  @Override
  public void onAppWidgetOptionsChanged(final Context context, final AppWidgetManager appWidgetManager, final int appWidgetId,
      final Bundle newOptions)
  {
    if (newOptions != null)
      log.info("app widget {} options changed: minWidth={}", appWidgetId, newOptions.getInt(AppWidgetManager.OPTION_APPWIDGET_MIN_WIDTH));

    final WalletApplication application = (WalletApplication) context.getApplicationContext();
    final Coin balance = application.getWallet().getBalance(BalanceType.ESTIMATED);

    updateWidget(context, appWidgetManager, appWidgetId, newOptions, balance);
  }

  public static void updateWidgets(final Context context, final Wallet wallet)
  {
    final AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
    final ComponentName providerName = new ComponentName(context, WalletBalanceWidgetProvider.class);

    try
    {
      final int[] appWidgetIds = appWidgetManager.getAppWidgetIds(providerName);

      if (appWidgetIds.length > 0)
      {
        final Coin balance = wallet.getBalance(BalanceType.ESTIMATED);
        WalletBalanceWidgetProvider.updateWidgets(context, appWidgetManager, appWidgetIds, balance);
      }
    }
    catch (final RuntimeException x) // system server dead?
    {
      log.warn("cannot update app widgets", x);
    }
  }

  private static void updateWidgets(final Context context, final AppWidgetManager appWidgetManager, final int[] appWidgetIds, final Coin balance)
  {
    for (final int appWidgetId : appWidgetIds)
    {
      final Bundle options = getAppWidgetOptions(appWidgetManager, appWidgetId);
      updateWidget(context, appWidgetManager, appWidgetId, options, balance);
    }
  }

  private static void updateWidget(final Context context, final AppWidgetManager appWidgetManager, final int appWidgetId,
      final Bundle appWidgetOptions, final Coin balance)
  {
    final Configuration config = new Configuration(PreferenceManager.getDefaultSharedPreferences(context));
    final MonetaryFormat btcFormat = config.getFormat();

    final Spannable balanceStr = new MonetarySpannable(btcFormat.noCode(), balance).applyMarkup(null, null, MonetarySpannable.SMALLER_SPAN);

    final Cursor data = context.getContentResolver().query(ExchangeRatesProvider.contentUri(BuildConfig.APPLICATION_ID, true), null,
        ExchangeRatesProvider.KEY_CURRENCY_CODE, new String[] { config.getExchangeCurrencyCode() }, null);
    final Spannable localBalanceStr;
    if (data != null)
    {
      if (data.moveToFirst())
      {
        final ExchangeRate exchangeRate = ExchangeRatesProvider.getExchangeRate(data);
        final Fiat localBalance = exchangeRate.rate.coinToFiat(balance);
        final MonetaryFormat localFormat = Constants.LOCAL_FORMAT.code(0,
            Constants.PREFIX_ALMOST_EQUAL_TO + GenericUtils.currencySymbol(exchangeRate.getCurrencyCode()));
        localBalanceStr = new MonetarySpannable(localFormat, localBalance).applyMarkup(MonetarySpannable.SMALLER_SPAN,
            new ForegroundColorSpan(context.getResources().getColor(R.color.widget_fiat_name)), MonetarySpannable.SMALLER_SPAN);
      }
      else
      {
        localBalanceStr = null;
      }

      data.close();
    }
    else
    {
      localBalanceStr = null;
    }

    final RemoteViews views = new RemoteViews(BuildConfig.APPLICATION_ID, R.layout.wallet_balance_widget_content);

    final String currencyCode = btcFormat.code();
    if (MonetaryFormat.CODE_BTC.equals(currencyCode))
      views.setImageViewResource(R.id.widget_wallet_prefix, R.drawable.currency_symbol_btc_widget);
    else if (MonetaryFormat.CODE_MBTC.equals(currencyCode))
      views.setImageViewResource(R.id.widget_wallet_prefix, R.drawable.currency_symbol_mbtc_widget);
    else if (MonetaryFormat.CODE_UBTC.equals(currencyCode))
      views.setImageViewResource(R.id.widget_wallet_prefix, R.drawable.currency_symbol_ubtc_widget);

    views.setTextViewText(R.id.widget_wallet_balance_btc, balanceStr);
    views.setViewVisibility(R.id.widget_wallet_balance_local, localBalanceStr != null ? View.VISIBLE : View.GONE);
    views.setTextViewText(R.id.widget_wallet_balance_local, localBalanceStr);

    if (appWidgetOptions != null)
    {
      final int minWidth = appWidgetOptions.getInt(AppWidgetManager.OPTION_APPWIDGET_MIN_WIDTH);
      views.setViewVisibility(R.id.widget_app_icon, minWidth > 400 ? View.VISIBLE : View.GONE);
      views.setViewVisibility(R.id.widget_button_request, minWidth > 300 ? View.VISIBLE : View.GONE);
      views.setViewVisibility(R.id.widget_button_send, minWidth > 300 ? View.VISIBLE : View.GONE);
      views.setViewVisibility(R.id.widget_button_send_qr, minWidth > 200 ? View.VISIBLE : View.GONE);
    }

    views.setOnClickPendingIntent(R.id.widget_button_balance, PendingIntent.getActivity(context, 0, new Intent(context, WalletActivity.class), 0));
    views.setOnClickPendingIntent(R.id.widget_button_request,
        PendingIntent.getActivity(context, 0, new Intent(context, RequestCoinsActivity.class), 0));
    views.setOnClickPendingIntent(R.id.widget_button_send, PendingIntent.getActivity(context, 0, new Intent(context, SendCoinsActivity.class), 0));
    views.setOnClickPendingIntent(R.id.widget_button_send_qr,
        PendingIntent.getActivity(context, 0, new Intent(context, SendCoinsQrActivity.class), 0));

    appWidgetManager.updateAppWidget(appWidgetId, views);
  }

  private static Bundle getAppWidgetOptions(final AppWidgetManager appWidgetManager, final int appWidgetId)
  {
    try
    {
      final Method getAppWidgetOptions = AppWidgetManager.class.getMethod("getAppWidgetOptions", Integer.TYPE);
      final Bundle options = (Bundle) getAppWidgetOptions.invoke(appWidgetManager, appWidgetId);
      return options;
    }
    catch (final Exception x)
    {
      return null;
    }
  }
}

Java Source Code List

• Back to Development/wallet  ↑