<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"   android:layout_width="fill_parent"   android:layout_height="fill_parent" >    <TextView     android:layout_width="match_parent"     android:layout_height="wrap_content"     android:layout_alignParentTop="true"     android:background="@drawable/switcherbar_bg"     android:gravity="center"     android:text="@string/audio_record_title"     android:textColor="#ffffff"     android:textSize="16sp" />    <LinearLayout     android:layout_width="match_parent"     android:layout_height="wrap_content"     android:layout_centerInParent="true"     android:orientation="vertical"     android:paddingLeft="10dip"     android:paddingRight="10dip" >      <TextView       android:id="@+id/audio_record_time"       android:layout_width="match_parent"       android:layout_height="wrap_content"       android:text="00:00" />      <LinearLayout       android:layout_width="match_parent"       android:layout_height="wrap_content"       android:layout_marginTop="10dip"       android:orientation="horizontal" >        <Button         android:id="@+id/audio_record_start"         android:layout_width="0dip"         android:layout_height="wrap_content"         android:layout_weight="1"         android:background="@drawable/searchbtn_normal"         android:text="開始錄音"         android:textSize="14sp" />        <Button         android:id="@+id/audio_record_stop"         android:layout_width="0dip"         android:layout_height="wrap_content"         android:layout_marginLeft="5dip"         android:layout_weight="1"         android:background="@drawable/searchbtn_bg"         android:text="結(jié)束錄音"         android:textSize="14sp" />     </LinearLayout>      <LinearLayout       android:layout_width="match_parent"       android:layout_height="wrap_content"       android:layout_marginTop="10dip"       android:orientation="horizontal" >        <Button         android:id="@+id/audio_record_play"         android:layout_width="0dip"         android:layout_height="wrap_content"         android:layout_weight="1"         android:background="@drawable/searchbtn_normal"         android:text="播放錄音"         android:textSize="14sp" />        <Button         android:id="@+id/audio_record_select"         android:layout_width="0dip"         android:layout_height="wrap_content"         android:layout_marginLeft="5dip"         android:layout_weight="1"         android:background="@drawable/searchbtn_bg"         android:text="確定選擇"         android:textSize="14sp" />     </LinearLayout>   </LinearLayout>  </RelativeLayout> 

 // 錄音事件   ksly_btn.setOnClickListener(new OnClickListener() {     @Override     public void onClick(View v) {       Intent intent = new Intent(MaintainVisitEditActivity.this, AudioRecordActivity.class);       intent.setAction(Intent.ACTION_VIEW);       intent.putExtra("duration", entity.getVoiceDuration());       intent.putExtra("fileName", entity.getVoiceRecord());       startActivityForResult(intent, VOICE_RECODE);     }   });  @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) {   super.onActivityResult(requestCode, resultCode, data);    if (requestCode == VOICE_RECODE && resultCode == AudioRecordActivity.SUCCESS) {     entity.setVoiceDuration(data.getLongExtra("duration", 0));// 時(shí)長     entity.setVoiceRecord(data.getStringExtra("fileName"));// 文件名（絕對路徑）     ksly_time.setText(DateTimeUtils.formatToMillisecond(entity.getVoiceDuration()));   } } 

package com.whowii.ct.cm.activity;  import java.io.File; import java.io.IOException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Timer; import java.util.TimerTask;  import android.app.Activity; import android.content.Intent; import android.media.MediaPlayer; import android.media.MediaPlayer.OnCompletionListener; import android.media.MediaRecorder; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.util.Log; import android.view.KeyEvent; import android.view.View; import android.view.View.OnClickListener; import android.view.Window; import android.widget.Button; import android.widget.TextView; import android.widget.Toast;  import com.whowii.ct.cm.R; import com.whowii.ct.cm.command.QueryParams; import com.whowii.ct.cm.utils.DateTimeUtils; import com.whowii.ct.cm.utils.SDCardUtils;  /**  * 錄制音頻  *  * @author Administrator  *  */ public class AudioRecordActivity extends Activity {   private TextView audio_record_time;   private Button audio_record_start, audio_record_stop, audio_record_play, audio_record_select;   private MediaRecorder mediaRecorder;   private final String TAG = AudioRecordActivity.class.getSimpleName();   private boolean isIdle = true;// 當(dāng)前是否空閑，false：表示正在錄音   private long startTime = 0, stopTime = 0, duration = 0;// 開始時(shí)間、結(jié)束時(shí)間、錄音時(shí)長   private String fileName = null;// 存儲錄音文件的路徑   private Timer timer = null;// Timer計(jì)時(shí)器   public static final int SUCCESS = 1;// 錄制成功;   public static final int FAILURE = 0;// 錄制失敗   private MediaPlayer mediaPlayer;   private TimerTask task = new TimerTask() {     final Handler handler = new Handler() {       public void handleMessage(Message message) {         Bundle data = message.getData();         audio_record_time.setText(DateTimeUtils.formatToMillisecond(data.getLong("time")));       }     };      public void run() {       Message message = new Message();       long t = System.currentTimeMillis();       Bundle data = new Bundle();       data.putLong("time", t - startTime);       message.setData(data);       handler.sendMessage(message);     }   };    protected void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     requestWindowFeature(Window.FEATURE_NO_TITLE); // 設(shè)置無標(biāo)題欄      setContentView(R.layout.audio_record);     mediaPlayer = new MediaPlayer();      initControl();     setListener();      timer = new Timer(true);     fileName = getIntent().getStringExtra("fileName");     duration = getIntent().getLongExtra("duration", 0);   }    private void initControl() {     audio_record_time = (TextView) findViewById(R.id.audio_record_time);     audio_record_start = (Button) findViewById(R.id.audio_record_start);     audio_record_stop = (Button) findViewById(R.id.audio_record_stop);     audio_record_play = (Button) findViewById(R.id.audio_record_play);     audio_record_select = (Button) findViewById(R.id.audio_record_select);   }    private void setListener() {     // 播放完成事件     mediaPlayer.setOnCompletionListener(new OnCompletionListener() {       @Override       public void onCompletion(MediaPlayer mp) {         isIdle = true;         audio_record_play.setText("播放錄音");         audio_record_play.setBackgroundResource(R.drawable.searchinput_bg);       }     });     // 開始錄音     audio_record_start.setOnClickListener(new OnClickListener() {       @Override       public void onClick(View v) {         if (!isIdle) {           return;         }         if (!SDCardUtils.sdCardExists()) {           Toast.makeText(AudioRecordActivity.this, "缺少SD卡，請先插入后再操作！", Toast.LENGTH_LONG).show();           return;         }         audio_record_start.setText("開始錄音");         audio_record_start.setEnabled(true);          duration = 0;         startTime = System.currentTimeMillis();         fileName = QueryParams.CACHE_AUDIO_PATH;         fileName += new SimpleDateFormat("yyyyMMdd_hhmmss").format(new Date(startTime)) + ".amr";         File file = new File(fileName);          mediaRecorder = new MediaRecorder();         mediaRecorder.setOutputFile(file.getAbsolutePath());         mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);         mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);         mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);         try {           mediaRecorder.prepare();           mediaRecorder.start();           isIdle = false;           audio_record_start.setBackgroundResource(R.drawable.searchbtn_pressed);           timer.schedule(task, 0, 100);         } catch (IOException e) {           startTime = 0;           Log.e(TAG, e.toString());           Toast.makeText(AudioRecordActivity.this, "錄制時(shí)發(fā)生異常！", Toast.LENGTH_LONG).show();         }       }     });     // 結(jié)束錄音     audio_record_stop.setOnClickListener(new OnClickListener() {       @Override       public void onClick(View v) {         if (mediaRecorder != null) {           stopTime = System.currentTimeMillis();           duration = stopTime - startTime;           timer.cancel();           mediaRecorder.stop();           mediaRecorder.release();           mediaRecorder = null;           audio_record_start.setBackgroundResource(R.drawable.searchbtn_normal);           isIdle = true;         }       }     });     // 播放錄音     audio_record_play.setOnClickListener(new OnClickListener() {       @Override       public void onClick(View v) {         if (!isIdle) {           return;         }          if (audio_record_play.getText().equals("播放錄音")) {           if (fileName == null || fileName.equals("") || duration == 0) {             Toast.makeText(AudioRecordActivity.this, "沒有錄音文件！", Toast.LENGTH_LONG).show();             return;           }            try {             mediaPlayer.reset();             mediaPlayer.setDataSource(fileName);             mediaPlayer.prepare();             mediaPlayer.start();             isIdle = false;             audio_record_play.setText("終止播放");             audio_record_play.setBackgroundResource(R.drawable.searchbtn_pressed);           } catch (Exception e) {             e.printStackTrace();             Toast.makeText(AudioRecordActivity.this, "播放錄音時(shí)遇到錯(cuò)誤！", Toast.LENGTH_LONG).show();           }         } else {           if (mediaPlayer != null && mediaPlayer.isPlaying()) {             mediaPlayer.stop();             isIdle = true;           }           audio_record_play.setText("播放錄音");           audio_record_play.setBackgroundResource(R.drawable.searchinput_bg);         }       }     });     // 確認(rèn)選擇     audio_record_select.setOnClickListener(new OnClickListener() {       @Override       public void onClick(View v) {         if (fileName == null || fileName.equals("") || duration == 0) {           Toast.makeText(AudioRecordActivity.this, "沒有錄音文件！", Toast.LENGTH_LONG).show();           return;         }          Intent intent = new Intent();         intent.putExtra("fileName", fileName);         intent.putExtra("duration", duration);         setResult(SUCCESS, intent);// 返回成功標(biāo)識         isIdle = true;         if (mediaPlayer != null) {           if (mediaPlayer.isPlaying()) {             mediaPlayer.stop();           }           mediaPlayer = null;         }         finish();// 結(jié)束當(dāng)前的activity,等于點(diǎn)擊返回按鈕       }     });   }    // 捕獲返回鍵，關(guān)閉當(dāng)前頁面時(shí)返回失敗標(biāo)識   @Override   public boolean onKeyDown(int keyCode, KeyEvent event) {     if (keyCode == KeyEvent.KEYCODE_BACK) {       setResult(FAILURE);       isIdle = true;       if (mediaPlayer != null) {         if (mediaPlayer.isPlaying()) {           mediaPlayer.stop();         }         mediaPlayer = null;       }       finish();       return true;     }     return super.onKeyDown(keyCode, event);   }  }