Android Open Source - My-Wallet-Android Wallet Addresses Fragment

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License

The source code is released under:
GNU General Public License
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Java Source Code

/*
 * Copyright 2011-2012 the original author or authors.
 */* w  w  w  . j  ava 2s. c o 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 piuk.blockchain.android.ui;

import java.text.DateFormat;
import java.util.Date;
import java.util.List;
import java.util.ArrayList;

import android.app.Activity;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.res.Resources;
import android.database.ContentObserver;
import android.os.Bundle;
import android.os.Handler;
import android.preference.PreferenceManager;
import android.support.v4.app.ListFragment;
import android.support.v4.view.ViewPager;
import android.text.ClipboardManager;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.BaseAdapter;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.TextView;

import com.google.bitcoin.core.AbstractWalletEventListener;
import com.google.bitcoin.core.Address;
import com.google.bitcoin.core.ECKey;
import com.google.bitcoin.core.Wallet;
import com.google.bitcoin.uri.BitcoinURI;

import piuk.MyECKey;
import piuk.blockchain.R;
import piuk.blockchain.android.AddressBookProvider;
import piuk.blockchain.android.Constants;
import piuk.blockchain.android.WalletApplication;
import piuk.blockchain.android.util.QrDialog;
import piuk.blockchain.android.util.WalletUtils;

/**
 * @author Andreas Schildbach
 */
public class WalletAddressesFragment extends ListFragment
{
  private WalletApplication application;
  private Activity activity;
  private List<ECKey> keys;
  private int tag_filter = 0;
  private AbstractWalletEventListener eventListener = null;
  private ViewPager pagerView;
  
  public WalletAddressesFragment(int tag_filter, ViewPager pagerView) {
    super();
    
    this.tag_filter = tag_filter;
    this.pagerView = pagerView;
    
    eventListener = new AbstractWalletEventListener() {
      public void onChange(Wallet arg0) {
        try {
          updateView();
        } catch (Exception e) {
          e.printStackTrace();
        }
      }
    };
  }
  
  public void setKeys() {
    @SuppressWarnings("unchecked")
    List<ECKey> keys = (List<ECKey>) application.getWallet().keychain.clone();
    
    this.keys = new ArrayList<ECKey>(keys.size());
    
    for (ECKey key : keys) {
      MyECKey myKey = (MyECKey) key;
      
      if (myKey.getTag() == tag_filter)
        this.keys.add(key);
    }
  }
  
  @Override
  public void onCreate(final Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);

    activity = getActivity();
    application = (WalletApplication) activity.getApplication();
    setKeys();

    setListAdapter(new Adapter());
  }

  @Override
  public void onViewCreated(final View view, final Bundle savedInstanceState)
  {
    super.onViewCreated(view, savedInstanceState);

    registerForContextMenu(getListView());
  }

  public void onHide() {
    this.unregisterForContextMenu(getListView());
  }
  
  @Override
  public void onDestroy() {
    super.onDestroy();
  }
  
  @Override
  public void onResume()
  {
    super.onResume();

    application.getWallet().addEventListener(eventListener);
    
    activity.getContentResolver().registerContentObserver(AddressBookProvider.CONTENT_URI, true, contentObserver);
    
    updateView();
  }

  @Override
  public void onPause()
  {
    activity.getContentResolver().unregisterContentObserver(contentObserver);

    application.getWallet().removeEventListener(eventListener);

    super.onPause();
  }

  @Override
  public void onListItemClick(final ListView l, final View v, final int position, final long id)
  {
    
    System.out.println("Clicked " + tag_filter);
    
    final ECKey key = keys.get(position);
    final Address address = key.toAddress(Constants.NETWORK_PARAMETERS);

    EditAddressBookEntryFragment.edit(getFragmentManager(), address.toString());
  }

  @Override
  public void onCreateContextMenu(final ContextMenu menu, final View v, final ContextMenuInfo info)
  {
    activity.getMenuInflater().inflate(R.menu.wallet_addresses_context, menu);
  }

  @Override
  public boolean onContextItemSelected(final MenuItem item)
  {
    System.out.println(this);

    if (pagerView.getCurrentItem() == 0 && tag_filter == 2)
      return false;
    else if (pagerView.getCurrentItem() == 1 && tag_filter == 0)
      return false;
    
    final AdapterContextMenuInfo menuInfo = (AdapterContextMenuInfo) item.getMenuInfo();

    final ECKey key = (ECKey) getListView().getAdapter().getItem(menuInfo.position);

    switch (item.getItemId())
    {
      case R.id.wallet_addresses_context_edit:
      {
        final Address address = key.toAddress(Constants.NETWORK_PARAMETERS);
        EditAddressBookEntryFragment.edit(getFragmentManager(), address.toString());
        return true;
      }

      case R.id.wallet_addresses_context_show_qr:
      {
        final Address address = key.toAddress(Constants.NETWORK_PARAMETERS);
        final String uri = BitcoinURI.convertToBitcoinURI(address, null, null, null);
        final int size = (int) (256 * getResources().getDisplayMetrics().density);
        new QrDialog(activity, WalletUtils.getQRCodeBitmap(uri, size)).show();
        return true;
      }

      case R.id.wallet_addresses_context_copy_to_clipboard:
      {
        final Address address = key.toAddress(Constants.NETWORK_PARAMETERS);
        handleCopyToClipboard(address.toString());
        return true;
      }

      case R.id.wallet_addresses_context_default:
      {
        final Address address = key.toAddress(Constants.NETWORK_PARAMETERS);
        handleDefault(address);
        return true;
      }

      default:
        return false;
    }
  }

  private void handleDefault(final Address address)
  {
    final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(activity);
    prefs.edit().putString(Constants.PREFS_KEY_SELECTED_ADDRESS, address.toString()).commit();
  }

  private void handleCopyToClipboard(final String address)
  {
    final ClipboardManager clipboardManager = (ClipboardManager) activity.getSystemService(Context.CLIPBOARD_SERVICE);
    clipboardManager.setText(address);
    ((AbstractWalletActivity) activity).toast(R.string.wallet_address_fragment_clipboard_msg);
  }


  private void updateView()
  {
    
    System.out.println("Set Keys");
    
    setKeys();

    final ListAdapter adapter = getListAdapter();
    
    if (adapter != null)
      ((BaseAdapter) adapter).notifyDataSetChanged();
  }

  private class Adapter extends BaseAdapter
  {
    final DateFormat dateFormat = android.text.format.DateFormat.getDateFormat(activity);
    final Resources res = getResources();

    public int getCount() {
      return keys.size();
    }

    public Object getItem(final int position) {
      return keys.get(position);
    }

    public long getItemId(final int position) {
      return keys.get(position).hashCode();
    }

    public View getView(final int position, View row, final ViewGroup parent) {
      final ECKey key = (ECKey) getItem(position);
      final Address address = key.toAddress(Constants.NETWORK_PARAMETERS);

      if (row == null)
        row = getLayoutInflater(null).inflate(R.layout.address_book_row, null);

      final TextView addressView = (TextView) row.findViewById(R.id.address_book_row_address);
      addressView.setText(WalletUtils.formatAddress(address, Constants.ADDRESS_FORMAT_GROUP_SIZE, Constants.ADDRESS_FORMAT_LINE_SIZE));

      final TextView labelView = (TextView) row.findViewById(R.id.address_book_row_label);
      final String label = AddressBookProvider.resolveLabel(activity.getContentResolver(), address.toString());
      if (label != null) {
        labelView.setText(label);
        labelView.setTextColor(res.getColor(R.color.less_significant));
      }
      else {
        labelView.setText(R.string.wallet_addresses_fragment_unlabeled);
        labelView.setTextColor(res.getColor(R.color.insignificant));
      }

      final TextView createdView = (TextView) row.findViewById(R.id.address_book_row_created);
      final long created = key.getCreationTimeSeconds();
      if (created != 0) {
        createdView.setText(dateFormat.format(new Date(created * 1000)));
        createdView.setVisibility(View.VISIBLE);
      }
      else {
        createdView.setVisibility(View.GONE);
      }

      return row;
    }
  }

  private final Handler handler = new Handler();

  private final ContentObserver contentObserver = new ContentObserver(handler)
  {
    @Override
    public void onChange(final boolean selfChange)
    {
      try {
        handler.post(new Runnable() {
          public void run() {
            updateView();    
          }
        });
      } catch (Exception e) {
        e.printStackTrace();
      }
    }
  };
}
Java Source Code List
