Android Open Source - banshee-remote Server List Activity

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License

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

package de.viktorreiser.bansheeremote.activity;
//from w w w  .  j a  v  a  2  s .co  m
import java.util.List;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;
import de.viktorreiser.bansheeremote.R;
import de.viktorreiser.bansheeremote.data.App;
import de.viktorreiser.bansheeremote.data.BansheeDatabase;
import de.viktorreiser.bansheeremote.data.BansheeServer;
import de.viktorreiser.bansheeremote.data.BansheeServerCheckTask;
import de.viktorreiser.bansheeremote.data.BansheeServerCheckTask.OnBansheeServerCheck;

/**
 * Choose server from list or create a new one.<br>
 * <br>
 * If chosen server is reachable then the chosen server will be persisted, {@code RESULT_OK} will be
 * set and the activity will be finished. Otherwise {@code RESULT_CANCELED} will be set.
 * 
 * @author Viktor Reiser &lt;<a href="mailto:viktorreiser@gmx.de">viktorreiser@gmx.de</a>&gt;
 */
public class ServerListActivity extends Activity implements OnItemClickListener,
    OnBansheeServerCheck {
  
  // PRIVATE ====================================================================================
  
  private static final int REQUEST_NEW_SERVER = 1;
  
  private ListView mList;
  private List<BansheeServer> mServer;
  private BansheeServerCheckTask mCheckTask;
  
  // OVERRIDDEN =================================================================================
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.server_list);
    
    mServer = BansheeServer.getServers();
    
    mList = (ListView) findViewById(R.id.list);
    mList.setAdapter(new ServerAdapter());
    mList.setOnItemClickListener(this);
    registerForContextMenu(mList);
    
    setResult(RESULT_CANCELED);
    
    mCheckTask = (BansheeServerCheckTask) getLastNonConfigurationInstance();
    
    if (mCheckTask != null) {
      mCheckTask.showDialog(this);
    }
  }
  
  @Override
  protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    switch (requestCode) {
    case REQUEST_NEW_SERVER:
      if (resultCode == RESULT_OK) {
        resetServerSettings();
        mServer = BansheeServer.getServers();
        ((ServerAdapter) mList.getAdapter()).notifyDataSetChanged();
      }
      break;
    
    default:
      super.onActivityResult(requestCode, resultCode, data);
      break;
    }
  }
  
  @Override
  public Object onRetainNonConfigurationInstance() {
    if (mCheckTask != null) {
      mCheckTask.dismissDialog();
    }
    
    return mCheckTask;
  }
  
  @Override
  public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
    int position = ((AdapterView.AdapterContextMenuInfo) menuInfo).position;
    
    if (position != mServer.size()) {
      menu.add(Menu.NONE, 1, Menu.NONE, R.string.edit_server);
      menu.add(Menu.NONE, 2, Menu.NONE, R.string.remove_server);
    }
  }
  
  @Override
  public boolean onContextItemSelected(MenuItem item) {
    if (item.getItemId() == 1) {
      Intent intent = new Intent(ServerListActivity.this, NewOrEditServerActivity.class);
      intent.putExtra("id", ((AdapterView.AdapterContextMenuInfo) item.getMenuInfo()).id);
      startActivityForResult(intent, REQUEST_NEW_SERVER);
      return true;
    } else if (item.getItemId() == 2) {
      resetServerSettings();
      long id = ((AdapterView.AdapterContextMenuInfo) item.getMenuInfo()).id;
      BansheeServer.removeServer(id);
      mServer = BansheeServer.getServers();
      ((ServerAdapter) mList.getAdapter()).notifyDataSetChanged();
      return true;
    }
    
    return false;
  }
  
  @Override
  public void onItemClick(AdapterView<?> adapter, View v, int position, long id) {
    if (position == mServer.size()) {
      startActivityForResult(
          new Intent(ServerListActivity.this, NewOrEditServerActivity.class),
          REQUEST_NEW_SERVER);
    } else {
      // check selected server whether it's reachable
      mCheckTask = new BansheeServerCheckTask(mServer.get(position), this);
    }
  }
  
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    super.onCreateOptionsMenu(menu);
    
    menu.add(Menu.NONE, 1, Menu.NONE, R.string.settings)
        .setIcon(R.drawable.settings);
    
    return true;
  }
  
  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
    case 1:
      startActivity(new Intent(this, SettingsActivity.class));
      return true;
      
    default:
      return super.onOptionsItemSelected(item);
    }
  }
  
  @Override
  public void onBansheeServerCheck(Integer success) {
    BansheeServer server = mCheckTask.getServer();
    mCheckTask = null;
    
    if (success == 1) {
      // checked server is okay, so persist as default it and return to main activity
      BansheeServer.setDefaultServer(server.getId());
      setResult(RESULT_OK);
      finish();
    } else if (success == 0) {
      App.longToast(R.string.host_denied_password);
    } else {
      App.longToast(R.string.host_not_reachable);
    }
  }
  
  // PRIVATE ====================================================================================
  
  private void resetServerSettings() {
    BansheeDatabase.close();
    CurrentSongActivity.resetConnection();
  }
  
  private class ServerAdapter extends BaseAdapter {
    
    @Override
    public int getCount() {
      return mServer.size() + 1;
    }
    
    @Override
    public Object getItem(int position) {
      return position == mServer.size() ? null : mServer.get(position);
    }
    
    @Override
    public long getItemId(int position) {
      return position == mServer.size() ? -1 : mServer.get(position).getId();
    }
    
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
      if (convertView == null) {
        convertView = getLayoutInflater().inflate(
            android.R.layout.simple_list_item_1, null);
      }
      
      if (position == mServer.size()) {
        ((TextView) convertView).setText(R.string.new_server);
      } else {
        ((TextView) convertView).setText(mServer.get(position).toString());
      }
      
      return convertView;
    }
  }
}
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