Android Open Source - RemoteControl Server Selection Activity

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Back to project page RemoteControl.

License

The source code is released under:

MIT License

Java Source Code

package ch.sebastianhaeni.remotecontrol;
/* w w w .j  av a2s . co m*/
import java.io.BufferedReader;
import java.io.PrintWriter;
import java.util.ArrayList;

import android.app.ListActivity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class ServerSelectionActivity extends ListActivity {

  public static final String AUTHENTICATION_SUCCESS = "AUTHENTICATION_SUCCESS";

  ReceiveMessages _receiver = null;
  Boolean _receiverIsRegistered = false;
  ArrayList<ServerItem> _listItems = new ArrayList<ServerItem>();
  ArrayAdapter<ServerItem> _adapter;

  class ReceiveMessages extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
      String sender = intent.getStringExtra("sender");
      if (intent.getAction().equals(UDPListenerService.UDP_BROADCAST)) {
        String hostname = intent.getStringExtra("message");
        ServerItem s = new ServerItem(hostname, sender);
        if (!_listItems.contains(s)) {
          _listItems.add(s);
          _adapter.notifyDataSetChanged();
        }
      } else if (intent.getAction().equals(AUTHENTICATION_SUCCESS)) {
        Intent mainActivity = new Intent(ServerSelectionActivity.this, VolumeActivity.class);
        mainActivity.putExtra("SERVER", sender);
        startActivity(mainActivity);
      }
    }
  }

  class ServerItem {

    private String _hostname;
    private String _ipAddress;

    public ServerItem(String hostname, String ipAddress) {
      _hostname = hostname;
      _ipAddress = ipAddress;
    }

    public String toString() {
      return _hostname;
    }

    public String getIpAddress() {
      return _ipAddress;
    }

    public String getHostname() {
      return _hostname;
    }

    public boolean equals(Object other) {
      if (other instanceof ServerItem) {
        ServerItem o = (ServerItem) other;
        return o.getHostname().equals(_hostname) && o.getIpAddress().equals(_ipAddress);
      }
      return other.equals(this);
    }

  }

  PrintWriter out;
  BufferedReader in;

  @Override
  protected void onListItemClick(ListView l, View v, int position, long id) {
    Log.i("SERVER_LIST", "clicked on item " + id);
    ServerItem s = _listItems.get((int) id);
    Thread thread = new NetworkThread(this, s.getIpAddress(), "password:1234", AUTHENTICATION_SUCCESS);
    thread.start();
  }

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_server_selection);

    startService(new Intent(this, UDPListenerService.class));
    _receiver = new ReceiveMessages();

    _adapter = new ArrayAdapter<ServerItem>(this, R.layout.server_list_item, _listItems);
    setListAdapter(_adapter);
  }

  @Override
  protected void onResume() {
    if (!_receiverIsRegistered) {
      registerReceiver(_receiver, new IntentFilter(UDPListenerService.UDP_BROADCAST));
      registerReceiver(_receiver, new IntentFilter(AUTHENTICATION_SUCCESS));
      _receiverIsRegistered = true;
    }
    super.onResume();
  }

  @Override
  protected void onPause() {
    if (_receiverIsRegistered) {
      unregisterReceiver(_receiver);
      _receiverIsRegistered = false;
    }
    super.onPause();
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.server_selection, menu);
    return true;
  }

}

Java Source Code List

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