Android Open Source - bitfynd-wallet-android Address Book Activity

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License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * Copyright 2011-2014 the original author or authors.
 *//w ww  . j  ava 2 s  .  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 de.schildbach.wallet.ui;

import java.util.ArrayList;
import java.util.List;

import org.bitcoinj.core.Address;
import org.bitcoinj.core.ECKey;

import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.ActionBar;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import de.schildbach.wallet.Constants;
import de.schildbach.wallet.util.ViewPagerTabs;
import de.schildbach.wallet.R;

/**
 * @author Andreas Schildbach
 */
public final class AddressBookActivity extends AbstractWalletActivity
{
  public static void start(final Context context)
  {
    context.startActivity(new Intent(context, AddressBookActivity.class));
  }

  private WalletAddressesFragment walletAddressesFragment;
  private SendingAddressesFragment sendingAddressesFragment;

  private static final String TAG_LEFT = "wallet_addresses";
  private static final String TAG_RIGHT = "sending_addresses";

  @Override
  protected void onCreate(final Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.address_book_content);

    final ActionBar actionBar = getSupportActionBar();
        actionBar.setDisplayHomeAsUpEnabled(true);

    final FragmentManager fragmentManager = getFragmentManager();

    walletAddressesFragment = (WalletAddressesFragment) fragmentManager.findFragmentByTag(TAG_LEFT);
    sendingAddressesFragment = (SendingAddressesFragment) fragmentManager.findFragmentByTag(TAG_RIGHT);

    final FragmentTransaction removal = fragmentManager.beginTransaction();

    if (walletAddressesFragment == null)
      walletAddressesFragment = new WalletAddressesFragment();
    else
      removal.remove(walletAddressesFragment);

    if (sendingAddressesFragment == null)
      sendingAddressesFragment = new SendingAddressesFragment();
    else
      removal.remove(sendingAddressesFragment);

    if (!removal.isEmpty())
    {
      removal.commit();
      fragmentManager.executePendingTransactions();
    }

    final ViewPager pager = (ViewPager) findViewById(R.id.address_book_pager);
    if (pager != null)
    {
      pager.setAdapter(new TwoFragmentAdapter(fragmentManager, walletAddressesFragment, sendingAddressesFragment));

      final ViewPagerTabs pagerTabs = (ViewPagerTabs) findViewById(R.id.address_book_pager_tabs);
      pagerTabs.addTabLabels(R.string.address_book_list_receiving_title, R.string.address_book_list_sending_title);

      pager.setOnPageChangeListener(pagerTabs);
      final int position = 1;
      pager.setCurrentItem(position);
      pager.setPageMargin(2);
      pager.setPageMarginDrawable(R.color.bg_less_bright);

      pagerTabs.onPageSelected(position);
      pagerTabs.onPageScrolled(position, 0, 0);
    }
    else
    {
      fragmentManager.beginTransaction().add(R.id.wallet_addresses_fragment, walletAddressesFragment, TAG_LEFT)
          .add(R.id.sending_addresses_fragment, sendingAddressesFragment, TAG_RIGHT).commit();
    }

    updateFragments();
  }

  @Override
  public boolean onOptionsItemSelected(final MenuItem item)
  {
    switch (item.getItemId())
    {
      case android.R.id.home:
        finish();
        return true;
    }

    return super.onOptionsItemSelected(item);
  }

  /* private */void updateFragments()
  {
    final List<ECKey> keys = getWalletApplication().getWallet().getImportedKeys();
    final ArrayList<Address> addresses = new ArrayList<Address>(keys.size());

    for (final ECKey key : keys)
    {
      final Address address = key.toAddress(Constants.NETWORK_PARAMETERS);
      addresses.add(address);
    }

    sendingAddressesFragment.setWalletAddresses(addresses);
  }

  private static class TwoFragmentAdapter extends PagerAdapter
  {
    private final FragmentManager fragmentManager;
    private final Fragment left;
    private final Fragment right;

    private FragmentTransaction currentTransaction = null;
    private Fragment currentPrimaryItem = null;

    public TwoFragmentAdapter(final FragmentManager fragmentManager, final Fragment left, final Fragment right)
    {
      this.fragmentManager = fragmentManager;
      this.left = left;
      this.right = right;
    }

    @Override
    public int getCount()
    {
      return 2;
    }

    @Override
    public Object instantiateItem(final ViewGroup container, final int position)
    {
      if (currentTransaction == null)
        currentTransaction = fragmentManager.beginTransaction();

      final String tag = (position == 0) ? TAG_LEFT : TAG_RIGHT;
      final Fragment fragment = (position == 0) ? left : right;
      currentTransaction.add(container.getId(), fragment, tag);

      if (fragment != currentPrimaryItem)
      {
        fragment.setMenuVisibility(false);
        fragment.setUserVisibleHint(false);
      }

      return fragment;
    }

    @Override
    public void destroyItem(final ViewGroup container, final int position, final Object object)
    {
      throw new UnsupportedOperationException();
    }

    @Override
    public void setPrimaryItem(final ViewGroup container, final int position, final Object object)
    {
      final Fragment fragment = (Fragment) object;
      if (fragment != currentPrimaryItem)
      {
        if (currentPrimaryItem != null)
        {
          currentPrimaryItem.setMenuVisibility(false);
          currentPrimaryItem.setUserVisibleHint(false);
        }
        if (fragment != null)
        {
          fragment.setMenuVisibility(true);
          fragment.setUserVisibleHint(true);
        }
        currentPrimaryItem = fragment;
      }
    }

    @Override
    public void finishUpdate(final ViewGroup container)
    {
      if (currentTransaction != null)
      {
        currentTransaction.commitAllowingStateLoss();
        currentTransaction = null;
        fragmentManager.executePendingTransactions();
      }
    }

    @Override
    public boolean isViewFromObject(final View view, final Object object)
    {
      return ((Fragment) object).getView() == view;
    }
  }
}

Java Source Code List

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