Android Open Source - geocamTalkAndroid Geo Cam Talk Create Activity

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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...
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Java Source Code

// __BEGIN_LICENSE__
// Copyright (C) 2008-2010 United States Government as represented by
// the Administrator of the National Aeronautics and Space Administration.
// All Rights Reserved.
// __END_LICENSE__
/*  w w  w  .j av a  2 s  .com*/
package gov.nasa.arc.geocam.talk.activity;

import gov.nasa.arc.geocam.talk.GeoCamTalkRoboApplication;
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.service.IAudioPlayer;
import gov.nasa.arc.geocam.talk.service.IAudioRecorder;
import gov.nasa.arc.geocam.talk.service.IIntentHelper;
import gov.nasa.arc.geocam.talk.service.IMessageStore;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Date;

import roboguice.inject.InjectView;
import android.content.SharedPreferences;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import com.google.inject.Inject;

/**
 * The Class GeoCamTalkCreateActivity.
 */
public class GeoCamTalkCreateActivity extends AuthenticatedBaseActivity {

  /** The app state. */
  @Inject
  GeoCamTalkRoboApplication appState;

  /** The new talk text view. */
  @InjectView(R.id.newTalkTextInput)
  EditText newTalkTextView;
  
  /** The record button. */
  @InjectView(R.id.record_button)
  Button recordButton;

  /** The recorder. */
  @Inject
  IAudioRecorder recorder;

  /** The player. */
  @Inject
  IAudioPlayer player;

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

  /** The intent helper. */
  @Inject
  IIntentHelper intentHelper;
  
  /** The shared preferences. */
  SharedPreferences sharedPreferences;

  /** The filename. */
  private String filename = null;
  
  /** The record image. */
  private Drawable recordImage = null;
  
  /** The stop image. */
  private Drawable stopImage = null;

  /**
   * Called when the activity is first created.
   *
   * @param savedInstanceState the saved instance state
   */
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.create_talk_message);
    sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
    recordImage = getApplicationContext().getResources().getDrawable(R.drawable.record);
    stopImage = getApplicationContext().getResources().getDrawable(R.drawable.stop);
  }

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

  /**
   * On playback click.
   *
   * @param v the View from which the click was initiated
   */
  public void onPlaybackClick(View v) {
    // TODO: add this to call the Audio service

    Log.i("TALKCREATE", "Playback recording now.");
    try {
      Toast.makeText(this, "Recording playback", Toast.LENGTH_SHORT).show();
      player.startPlaying(this.getFilesDir().toString() + "/audio_recording.mp4");
      // recorder.toggleRecordingStatus();
    } catch (Exception e) {
      Log.e("TALKCREATE", "Exception: " + e.getMessage());
      Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT).show();
    }
  }

  /**
   * On record click.
   *
   * @param v the View from which the click was initiated
   */
  public void onRecordClick(View v) {
    sharedPreferences.edit().putBoolean("audio_blocked", true).commit();
    if (recorder.isRecording()) {
      Log.i("TALKCREATE", "STOP recording now.");
      stopRecording();
    } else {
      Log.i("TALKCREATE", "START recording now.");
      try {
        player.playBeepA();
        recordButton.setCompoundDrawablesWithIntrinsicBounds(null, null, stopImage, null);
        recordButton.setText("Recording...");
        recorder.startRecording(this.getFilesDir().toString() + "/audio_recording.mp4");
        // recorder.toggleRecordingStatus();
        Toast.makeText(this, "Recording started", Toast.LENGTH_SHORT).show();
      } catch (Exception e) {
        Log.e("TALKCREATE", "Exception: " + e.getMessage());
        Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT).show();
        recorder.stopRecording();
      }
    }
  } 
  
  /**
   * Stop recording.
   */
  private void stopRecording() {
    sharedPreferences.edit().putBoolean("audio_blocked", false).commit();
    try {
      player.playBeepB();
      recordButton.setCompoundDrawablesWithIntrinsicBounds(null, null, recordImage, null);
      recordButton.setText("Record Audio");
      filename = recorder.stopRecording();
      Toast.makeText(this, "Recording stopped", Toast.LENGTH_SHORT).show();
      player.startPlaying(filename);
      // recorder.toggleRecordingStatus();
    } catch (Exception e) {
      Log.e("TALKCREATE", "Exception: " + e.getMessage());
      Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT).show();
    }
  }

  /**
   * On send click.
   *
   * @param v the View from which the click was initiated
   */
  public void onSendClick(View v) {
    
    //If for some reason we are still recording, stop now
    if (recorder.isRecording())
    {
      filename = recorder.stopRecording();
    }
    
    GeoCamTalkMessage message = new GeoCamTalkMessage();
    message.setContent(newTalkTextView.getText().toString());
    message.setContentTimestamp(new Date());
    message.setLocation(appState.getLocation());
    message.setAuthorUsername(sharedPreferences.getString("webapp_username", null));

    if (filename != null) {
      message.setAudio(createByteArray());
    } else
    {
      //TODO: Is this the best way to prevent pulling null AudioUrl on click
      //  before django update? (still local)
      message.setAudioUrl("");
    }

    try {
      messageStore.addMessage(message);
      intentHelper.Synchronize();
      UIUtils.goHome(this);
    } catch (Exception e) {
      UIUtils.displayException(this, e, "Communication with the server failed");
    }
  }

  /**
   * Creates the byte array for a recorded audio message.
   *
   * @return the byte[]
   */
  private byte[] createByteArray() {
    byte[] audioBytes = null;

    try {
      File audioFile = new File(filename);
      int length = (int) audioFile.length();
      audioBytes = new byte[length];

      FileInputStream fis;

      fis = new FileInputStream(audioFile);
      fis.read(audioBytes, 0, length);
    } catch (FileNotFoundException e) {
      UIUtils.displayException(this, e, "Could not find audio file");
    } catch (IOException e) {
      UIUtils.displayException(this, e, "Could not encode audio file");
    }

    return audioBytes;
  }
  
  /* (non-Javadoc)
   * @see gov.nasa.arc.geocam.talk.activity.AuthenticatedBaseActivity#onPause()
   */
  @Override
  protected void onPause() {
    if (recorder.isRecording()) {
      stopRecording();
    }
    sharedPreferences.edit().putBoolean("audio_blocked", false).commit();
    super.onPause();
  }
}
Java Source Code List
