5-7 ????? (1)???????? A. ??

1
5-7 ?????(1)???????? A. ??

• ????????????
• Android 1.6 ?????????
• Android 2.3.3 ???????? ????????????????????
• ??????????????????????????????Android????????????
  ????????????

???? ?????????????????????TextToSpeach
??????? ???????????ENGLISH? ?Edit Text
??????????????????????speak??????????
2
C. ??????(1)

• package jp.yu.speech
• import android.app.Activity
• import android.os.Bundle
• import java.util.
• import android.speech.tts.
• import android.speech.tts.TextToSpeech.
• import android.view.
• import android.view.View.
• import android.widget.
• public class SpeechActivity extends Activity
• EditText text Button btn TextToSpeech tsp
• / Called when the activity is first created.
  /
• _at_Override
• public void onCreate(Bundle
  savedInstanceState)
• super.onCreate(savedInstanceState)
• LinearLayout LL new LinearLayout(this)
• LL.setOrientation(LinearLayout.VERTICAL)
• setContentView(LL)
• text new EditText(this)
  LL.addView(text)

3
??????(2)

• tsp.setLanguage(Locale.ENGLISH)
• btn.setOnClickListener(new
  SpeechClickListener())
• class SpeechClickListener implements
  OnClickListener
• _at_Override
• public void onClick(View arg0)
• String str text.getText().toString()
• if(str ! null) tsp.speak(str,
  TextToSpeech.QUEUE_FLUSH, null)
• class SpeechInitListener implements
  OnInitListener
• _at_Override
• public void onInit(int arg0)

4
D. ???

• Edit Text???????
• ???????
• Start?????????
• ??????????

5
(2)???????? A. ????????

• ??????/????? ????? ???? ????????
• AAC LC/LTPMP3 ? ? 3GPP(.3gp)
• NE-AACv1(AAC) ? MPEG-4(.mp4, m4a)
• HE-AACv2 ? ADTS raw AAC(.aac)
• (enhanced AAC) ????(Android
  3.1??) ?????(Android 4.0??)
• ADIF?????
• MPEG-TS(.ts)Android 3.0??,?????
• AMR-NB ? ? 3GPP(.3gp)
• AMR-WB ? ? 3GPP(.3gp)
• FLAC ? FLAC(.flac) Android 3.1??
• MP3 ? MP3(.mp3)
• MIDI ? Type and 1(.mid, .xmf, .mxmf)
• RTTTL/RTX(.rtttl, .rtx), OTA(.ota),
  iMelody(.imy)
• Vorbis ? Ogg(.ogg), Matroska(.mkv), Android
  4.0??
• PCM/WAVE ? WAVE(.wav)

6
B. ??????

• ??????/????? ??
• AAC LC/LTPMP3 ????/????,
• NE-AACv1(AAC) ??160 Kbps, ?????????848 kHz
• HE-AACv2
• AMR-NB 4.7512.2 Kbps, ????????? 8 kHz
• AMR-WB 6.6023.85 Kbps, ????????? 16 kHz
• FLAC ????/????(??????????), 16 bit ??,
• ????????? 48kHz, 24 bit ???????????
• MP3 ????/????, 8320 Kbps(CBR), ???VBR
• MIDI MIDI Type 0 and 1, DLS Version 1 and 2, XMF,
  Mobile XMF,
• RTTTL/RTX, OTA, iMelody
• PCM/WAVE 8 and 16 bit linear PCM

7
C. ????

• ?????????????4.0???????

???? ? ?res????????raw??????????? ? ???????raw????
?????????????music1.mp3???? ? ?????????????R.raw.?
?????????????R.raw.music???????
8
D. ????(??1)

• Res??????raw????????

? ?res???????
? ???????????????????
9
????(??2)

• ???????raw?????????????????

10
????(??3)

• ?????????raw????????????

??????????????
????????????????? ????OK?????????
11
E. ?????

• ?android.media.MediaPlayer ????
• static MediaPlayer create ???????????????
• (Content cn, int id) ????????
• void prepare() ???????????
• void start() ????
• void pause() ??????
• void stop() ????
• void seekTo(int m) ????????
• void release() ??????
• void setOnCompletionListener ???????????????
• (MediaPlayer.OnCompletionListener l) l
  ??????????
• void onCompletion(MediaPlayer mp) ???????????????

??????????????????????,????????????????????????,??
???????????????? ??????????????????????????
12
C. ??????(1)

• package jp.sound
• import android.app.Activity
• import android.content.Context
• import android.graphics.Canvas
• import android.graphics.Color
• import android.graphics.Paint
• import android.media.MediaPlayer
• import android.os.Bundle
• import android.view.MotionEvent
• import android.view.View
• import android.view.Window
• public class SoundActivity extends Activity
• private MediaPlayerView view private
  MediaPlayer player
• / Called when the activity is first
  created. /
• _at_Override
• public void onCreate(Bundle
  savedInstanceState)
• super.onCreate(savedInstanceState)
• requestWindowFeature(Window.FEATURE_NO_TIT
  LE)
• view new MediaPlayerView(this)

13
??????(2)

• public boolean onTouchEvent(MotionEvent event)
• if(event.getAction()MotionEvent.ACTION_DOWN)
  
• if(playernull)playSound()
• else stopSound()
• return true
• public void playSound()
• try
• stopSound()
• playerMediaPlayer.create(getBaseContext(),
  R.raw.music1)
• player.seekTo(0)
• player.start()
• player.setOnCompletionListener(this)
• catch(Exception e)
• public void stopSound()
• try
• if(player null) return