Android Open Source - geocamTalkForAndroid Geo Cam Talk Activity

• Back to Sound/communication  ↑

From Project

Back to project page geocamTalkForAndroid.

License

The source code is released under:

NASA OPEN SOURCE AGREEMENT VERSION 1.3 THIS OPEN SOURCE AGREEMENT ("AGREEMENT") DEFINES THE RIGHTS OF USE, REPRODUCTION, DISTRIBUTION, MODIFICATION AND REDISTRIBUTION OF CERTAIN COMPUTER SOFTWARE ORI...

Java Source Code

package gov.nasa.arc.geocam.talk.activity;
/*w w  w. j  a  v  a2s  . c o  m*/
import gov.nasa.arc.geocam.talk.R;
import gov.nasa.arc.geocam.talk.UIUtils;
import gov.nasa.arc.geocam.talk.bean.GeoCamTalkMessage;
import gov.nasa.arc.geocam.talk.bean.TalkServerIntent;
import gov.nasa.arc.geocam.talk.service.IAudioPlayer;
import gov.nasa.arc.geocam.talk.service.IIntentHelper;
import gov.nasa.arc.geocam.talk.service.IMessageStore;
import gov.nasa.arc.geocam.talk.service.ITalkServer;

import java.util.List;

import roboguice.inject.InjectResource;
import roboguice.inject.InjectView;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.os.Bundle;
import android.os.PowerManager;
import android.util.Log;
import android.view.View;
import android.widget.EditText;
import android.widget.ListView;

import com.google.inject.Inject;

/**
 * The "home" activity for the application. Displays the message list to the user.
 */
public class GeoCamTalkActivity extends AuthenticatedBaseActivity {

  /** The {@link ITalkServer} implemenation to use. */
  @Inject
  ITalkServer djangoTalk;

  /** The talk list view. */
  @InjectView(R.id.TalkListView)
  ListView talkListView;

  /** The server root url. */
  @InjectResource(R.string.url_server_root)
  String serverRootUrl;

  /** The message list adapter. */
  @Inject
  GeoCamTalkMessageAdapter adapter;

  /** The message store. */
  @Inject
  IMessageStore messageStore;

  /** The player. */
  @Inject
  IAudioPlayer player;
  
  /** The shared prefs. */
  @Inject
  SharedPreferences prefs;
  
  /** The intent helper. */
  @Inject
  IIntentHelper intentHelper;


  /** The talk messages. */
  private List<GeoCamTalkMessage> talkMessages;
  
  /** The username. */
  private EditText username;

  /** The {@link BroadcastReceiver} used to receive a NEW_MESSAGES intent. */
  private BroadcastReceiver receiver = new BroadcastReceiver() {

    @Override
    public void onReceive(Context context, Intent intent) {
      if (intent.getAction().contentEquals(
          TalkServerIntent.INTENT_NEW_MESSAGES.toString())) {
        GeoCamTalkActivity.this.newMessages();
      }
    }
  };
  
  /** The wake lock. */
  private PowerManager.WakeLock wakeLock;

  /* (non-Javadoc)
   * @see roboguice.activity.RoboActivity#onCreate(android.os.Bundle)
   */
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
    wakeLock = pm.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK, "DimScreenALittle");
    setUsername();
  }

  /**
   * Sets the current username.
   */
  private void setUsername() {
    username = (EditText) findViewById(R.id.username_label);
    Editor editor = prefs.edit();
    editor.commit();
    if (prefs.getString("webapp_username", null) != null) {
      username.setText(prefs.getString("webapp_username", null));
    }
  }

  /**
   * Populate list view.
   */
  private void populateListView() {
    try {
      talkMessages = messageStore.getAllMessages();
    } catch (Exception e) {
      Log.i("Talk", "Error:" + e.getMessage());
    }

    if (talkMessages != null) {
      adapter.setTalkMessages(talkMessages);
      talkListView.setAdapter(adapter);
    }
  }

  /**
   * On go home button click.
   *
   * @param v the View from which the click was initiated
   */
  public void onGoHomeClick(View v) {
    populateListView();
  }

  /**
   * On create talk click.
   *
   * @param v the View from which the click was initiated
   */
  public void onCreateTalkClick(View v) {
    UIUtils.createTalkMessage(this);
  }

  /**
   * Act on a new messages intent receipt
   */
  public void newMessages() {
    populateListView();
  }

  /* (non-Javadoc)
   * @see gov.nasa.arc.geocam.talk.activity.AuthenticatedBaseActivity#onResume()
   */
  @Override
  protected void onResume() {
    super.onResume();

    prefs.edit().putBoolean("audio_blocked", false).commit();
    wakeLock.acquire();
    IntentFilter filter = new IntentFilter();
    filter.addAction(TalkServerIntent.INTENT_NEW_MESSAGES.toString());
    registerReceiver(receiver, filter);

    populateListView();
    setUsername();
  }

  /* (non-Javadoc)
   * @see gov.nasa.arc.geocam.talk.activity.AuthenticatedBaseActivity#onPause()
   */
  @Override
  protected void onPause() {
    unregisterReceiver(receiver);
    wakeLock.release();
    super.onPause();
  }
  
  /**
   * Audio button click handler.
   *
   * @param v the View from which the click was initiated
   */
  public void audioButtonClickHandler(View v) {    
    GeoCamTalkMessage msg = (GeoCamTalkMessage)v.getTag();    
    if (msg.hasAudio()) {
      try {
        UIUtils.playAudio(this, msg,  player, siteAuth);
      } catch (Exception e) {
        UIUtils.displayException(getApplicationContext(), e, "Cannot retrieve audio");
      }
    }    
  }
}

Java Source Code List

• Back to Sound/communication  ↑