本文实例为大家分享了Android录制音频文件的具体代码，供大家参考，具体内容如下
1、这个demo中没有对多次点击同一个声音文件做详细处理，偶尔会有崩溃，用的时候需要注意。
2、按住录音按钮录音过程中，只对竖直方向处理了一下，水平方向没写；
3、没有做删除某个声音文件的操作，但是测试的时候实现了功能，需要用到的话，在MainActivity—>onItemClick中的TODO中有详细说明；
4、这只是个demo，如果要在项目中使用，先写出demo，没问题了，再引入项目，在写成demo后，在真机上运行的时候，如果出现获取录音权限，最好选择“允许”，如果拒绝，可能会崩溃。
记得打开手机运行录音的权限
先来效果图：
目录结构：
1、添加权限：
<uses-permission android:name="android.permission.RECORD_AUDIO"/> <uses-permission android:name="android.permission.WAKE_LOCK"/> <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/> <uses-permission android:name="android.permission.VIBRATE"/> <uses-permission android:name="android.permission.WRITE_SETTINGS"/> <uses-permission android:name="android.permission.INTERACT_ACROSS_USERS_FULL"/> <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/> <uses-permission android:name="android.permission.CALL_PHONE"/> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/> <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
2、新建MediaRecorderUtils，复制以下源码：
package com.chen.voicedemo; import android.media.MediaRecorder; import android.os.Handler; import android.util.Log; import android.widget.ImageView; import java.io.File; /** * 录音工具类 */ public class MediaRecorderUtils { private static MediaRecorder recorder; static MediaRecorderUtils mediaRecorderUtils; static ImageView mimageView; private String path; /** * 获得单例对象，传入一个显示音量大小的imageview对象，如不需要显示可以传null */ public static MediaRecorderUtils getInstence(ImageView imageView) { if (mediaRecorderUtils == null) { mediaRecorderUtils = new MediaRecorderUtils(); } mimageView = imageView; return mediaRecorderUtils; } /** * 获得音频路径 */ public String getPath() { return path; } /** * 初始化 */ private void init() { recorder = new MediaRecorder();// new出MediaRecorder对象 recorder.setAudioSource(MediaRecorder.AudioSource.MIC); // 设置MediaRecorder的音频源为麦克风 recorder.setOutputFormat(MediaRecorder.OutputFormat.RAW_AMR); // 设置MediaRecorder录制的音频格式 recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); // 设置MediaRecorder录制音频的编码为amr. File file = new File(Utils.IMAGE_SDCARD_MADER); if (!file.exists()) { file.mkdirs(); } path = Utils.IMAGE_SDCARD_MADER + Utils.getVoiceFileName() + "stock.amr"; recorder.setOutputFile(path); // 设置录制好的音频文件保存路径 try { recorder.prepare();// 准备录制 } catch (Exception e) { e.printStackTrace(); } } /** * 开始录音 */ public void MediaRecorderStart() { init(); try { recorder.start(); flag = true; if (mimageView != null) { updateMicStatus(); } } catch (Exception e) { e.printStackTrace(); Log.e("chen", "录制失败"); } } /** * 停止录音 */ public void MediaRecorderStop() { try { recorder.stop(); recorder.release(); //释放资源 flag = false; mimageView = null; recorder = null; } catch (Exception e) { e.toString(); } } /** * 删除已录制的音频 */ public void MediaRecorderDelete() { File file = new File(path); if (file.isFile()) { file.delete(); } file.exists(); } ; private final Handler mHandler = new Handler(); private Runnable mUpdateMicStatusTimer = new Runnable() { public void run() { updateMicStatus(); } }; private int BASE = 1; private int SPACE = 1000;// 间隔取样时间 private boolean flag = true; /** * 更新话筒状态 */ private void updateMicStatus() { if (recorder != null) { double ratio = (double) recorder.getMaxAmplitude() / BASE; double db = 0;// 分贝 if (ratio > 1) { db = 20 * Math.log10(ratio); } int i = (int) db / 10; switch (i) { case 1: mimageView.setImageResource(R.drawable.rc_ic_volume_1); break; case 2: mimageView.setImageResource(R.drawable.rc_ic_volume_2); break; case 3: mimageView.setImageResource(R.drawable.rc_ic_volume_3); break; case 4: mimageView.setImageResource(R.drawable.rc_ic_volume_4); break; case 5: mimageView.setImageResource(R.drawable.rc_ic_volume_5); break; case 6: mimageView.setImageResource(R.drawable.rc_ic_volume_6); break; case 7: mimageView.setImageResource(R.drawable.rc_ic_volume_7); break; case 8: mimageView.setImageResource(R.drawable.rc_ic_volume_8); break; } if (flag) { mHandler.postDelayed(mUpdateMicStatusTimer, SPACE); } } } }
3、创建MyChronometer，复制以下代码
package com.chen.voicedemo; import android.annotation.SuppressLint; import android.content.Context; import android.os.Handler; import android.os.Message; import android.os.SystemClock; import android.util.AttributeSet; import android.view.accessibility.AccessibilityEvent; import android.view.accessibility.AccessibilityNodeInfo; import android.widget.TextView; public class MyChronometer extends TextView { private static final String TAG = "MyChronometer"; /** * A callback that notifies when the MyChronometer has incremented on its * own. */ public interface OnMyChronometerTickListener { /** * Notification that the MyChronometer has changed. */ void onMyChronometerTick(int time); } public interface OnMyChronometerTimeListener { /** * Notification that the MyChronometer has changed. */ void OnMyChronometerTimeListener(int time); } private OnMyChronometerTimeListener OnMyChronometerTimeListener; private long mBase; private boolean mVisible; private boolean mStarted; private boolean mRunning; private OnMyChronometerTickListener mOnMyChronometerTickListener; private long now_time; private static final int TICK_WHAT = 2; /** * Initialize this MyChronometer object. Sets the base to the current time. */ public MyChronometer(Context context) { this(context, null, 0); } /** * Initialize with standard view layout information. Sets the base to the * current time. */ public MyChronometer(Context context, AttributeSet attrs) { this(context, attrs, 0); } /** * Initialize with standard view layout information and style. Sets the base * to the current time. */ public MyChronometer(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); init(); } private void init() { mBase = SystemClock.elapsedRealtime(); updateText(mBase); } /** * Set the time that the count-up timer is in reference to. * * @param base Use the {@link SystemClock#elapsedRealtime} time base. */ public void setBase(long base) { mBase = base; updateText(SystemClock.elapsedRealtime()); } /** * Sets the listener to be called when the MyChronometer changes. * * @param listener The listener. */ public void setOnMyChronometerTickListener(OnMyChronometerTickListener listener) { mOnMyChronometerTickListener = listener; } public void setOnMyChronometerTimeListener(OnMyChronometerTimeListener listener) { OnMyChronometerTimeListener = listener; } /** * Start counting up. This does not affect the base as set from * {@link #setBase}, just the view display. * <p/> * MyChronometer works by regularly scheduling messages to the handler, even * when the Widget is not visible. To make sure resource leaks do not occur, * the user should make sure that each start() call has a reciprocal call to * {@link #stop}. */ public void start() { mStarted = true; updateRunning(); } /** * Stop counting up. This does not affect the base as set from * {@link #setBase}, just the view display. * <p/> * This stops the messages to the handler, effectively releasing resources * that would be held as the MyChronometer is running, via {@link #start}. */ public void stop() { mStarted = false; updateRunning(); now_time /= 10; if (OnMyChronometerTimeListener != null) { OnMyChronometerTimeListener.OnMyChronometerTimeListener((int) now_time); } } @Override protected void onDetachedFromWindow() { super.onDetachedFromWindow(); mVisible = false; updateRunning(); } @Override protected void onWindowVisibilityChanged(int visibility) { super.onWindowVisibilityChanged(visibility); mVisible = visibility == VISIBLE; updateRunning(); } private synchronized void updateText(long now) { long seconds = now - mBase; seconds /= 10; now_time = seconds; int time_m = (int) (seconds / 100); if (mOnMyChronometerTickListener != null) { mOnMyChronometerTickListener.onMyChronometerTick(time_m); } int time_s = (int) (seconds % 100); setText(time_m + ""); } private void updateRunning() { boolean running = mVisible && mStarted; if (running != mRunning) { if (running) { updateText(SystemClock.elapsedRealtime()); mHandler.sendMessageDelayed(Message.obtain(mHandler, TICK_WHAT), 1000); } else { mHandler.removeMessages(TICK_WHAT); } mRunning = running; } } private Handler mHandler = new Handler() { public void handleMessage(Message m) { if (mRunning) { updateText(SystemClock.elapsedRealtime()); sendMessageDelayed(Message.obtain(this, TICK_WHAT), 1000); } } }; @SuppressLint("NewApi") @Override public void onInitializeAccessibilityEvent(AccessibilityEvent event) { super.onInitializeAccessibilityEvent(event); event.setClassName(MyChronometer.class.getName()); } @SuppressLint("NewApi") @Override public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { super.onInitializeAccessibilityNodeInfo(info); info.setClassName(MyChronometer.class.getName()); } }
4、创建工具类
package com.chen.voicedemo;
import android.Manifest; import android.content.Context; import android.content.pm.PackageManager; import android.os.Environment; import android.support.v4.content.ContextCompat; import android.widget.Toast; import java.io.File; import java.text.SimpleDateFormat; import java.util.ArrayList; /** * 工具 */ public class Utils { /** * SD卡下语音目录 */ public static final String IMAGE_SDCARD_MADER = Environment .getExternalStorageDirectory() + "/chen/voice/"; /** * 检查录音权限6.0 */ public static boolean checkVoice(Context context) { try { if (ContextCompat.checkSelfPermission(context, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) { return false; } else { return true; } } catch (Exception e) { return true; } } private static Toast toast; /** * 单例吐司 */ public static void showToast(Context context, String msg) { if (toast == null) { toast = Toast.makeText(context, msg, Toast.LENGTH_SHORT); } toast.setText(msg); toast.show(); } /** * 获取指定文件夹下的所有文件路径 * * @param root 指定文件夹路径 * @return 指定文件夹下的所有文件 */ public static ArrayList<String> getVideoFiles(String root) { if (root == null || root == "") return null; ArrayList<String> list = new ArrayList<>(); File file = new File(root); File[] fileList = file.listFiles(); for (File f : fileList) { list.add(f.getPath()); } return list; } /** * 获取声音文件名字 * * @return 假如当前录制声音时间是2016年4月29号14点30分30秒。得到的文件名字就是20160429143030.这样保证文件名的唯一性 */ public static String getVoiceFileName() { long getNowTimeLong = System.currentTimeMillis(); SimpleDateFormat time = new SimpleDateFormat("yyyyMMddHHmmss"); String result = time.format(getNowTimeLong); return result; } }
5、MainActivity
package com.chen.voicedemo; import android.app.Activity; import android.graphics.drawable.AnimationDrawable; import android.graphics.drawable.ColorDrawable; import android.media.MediaPlayer; import android.os.Bundle; import android.os.SystemClock; import android.util.Log; import android.view.LayoutInflater; import android.view.MotionEvent; import android.view.View; import android.view.ViewGroup; import android.view.Window; import android.view.WindowManager; import android.widget.AdapterView; import android.widget.BaseAdapter; import android.widget.ImageView; import android.widget.ListView; import android.widget.PopupWindow; import android.widget.TextView; import java.io.File; import java.util.ArrayList; import java.util.List; public class MainActivity extends Activity implements View.OnTouchListener, AdapterView.OnItemClickListener { /** * 开始录音按钮 */ private TextView voice; /** * 用于定位。使录音时展示的popupwindow，展示在该控件 的下面 */ private TextView voice_popup; /** * 展示指定文件夹下所有录制的声音文件 */ private TextView show_voice_list; /** * 展示目标文件夹下，所有已录制的声音路径 */ private ListView show_voices_listview; private List<String> voiceList; /** * 停止播放声音 */ private TextView stop_show_voice; /** * 播放声音时，动的图片 */ private ImageView voice_anim; /** * 系统播放器 */ private MediaPlayer mediaPlayer; private Boolean flag = true; private float int_x = 0; private float int_y = 0; /** * 用于限制最大录音时常。单位是秒。意义是：最大录60秒的音频，到了60秒的是，自动停止 */ private int maxRecordTime = 60; /** * 用于显示频繁操作时间间隔。单位是毫秒。意义是：500毫秒内再次操作，就算是频频操作，做相应处理 */ private int oftenOperationTime = 500; private MyAdapter myAdapter; private AnimationDrawable animation; /** * 录音popup */ private PopupWindow voice_popupWindow; /** * 录音时声音变化 */ private ImageView voice_shengyin; /** * 录音计时器 */ private MyChronometer mychronometer; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.activity_main); voiceList = new ArrayList<String>(); voice = (TextView) findViewById(R.id.voice); voice_popup = (TextView) findViewById(R.id.voice_popup); voice_anim = (ImageView) findViewById(R.id.voice_anim); voice_anim.setImageResource(R.drawable.lcs_voice_receive); show_voice_list = (TextView) findViewById(R.id.show_voice_list); show_voice_list.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { voiceList = Utils.getVideoFiles(Utils.IMAGE_SDCARD_MADER); if (voiceList.size()>0){ myAdapter.notifyDataSetChanged(); }else{ Utils.showToast(MainActivity.this, "没有文件"); } } }); show_voices_listview = (ListView) findViewById(R.id.show_voices); show_voices_listview.setOnItemClickListener(this); myAdapter = new MyAdapter(); stop_show_voice = (TextView) findViewById(R.id.stop_show_voice); /** * 停止播放的监听器 */ stop_show_voice.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Log.e("chen", "点击了停止播放按钮"); if (mediaPlayer != null) { if (mediaPlayer.isPlaying()) { mediaPlayer.release();// 释放资源 } mediaPlayer = null; } if (animation != null && animation.isRunning()) { animation.stop(); } voice_anim.setImageResource(R.drawable.lcs_voice_receive); } }); show_voices_listview.setAdapter(myAdapter); voice.setOnTouchListener(this); } /** * 声音文件列表的item点击事件,播放对应声音文件 * * @param parent * @param view * @param position * @param id */ @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { //TODO 以下4行，是用来做测试，点击item，手机SD卡上对应路径下的声音文件就会被删除。如果录制声音失败，或者不满足条件，可以把以下4行写成一个工具方法调用，删除不满意的文件。这里不做详细演示 //File f_delete=new File(voiceList.get(position)); //f_delete.delete(); //voiceList.remove(voiceList.get(position)); //myAdapter.notifyDataSetChanged(); //TODO 以上4行，是用来做测试，点击item，手机SD卡上对应路径下的声音文件就会被删除。 try { mediaPlayer = new MediaPlayer(); /** * 播放过程中展示的动画 */ mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() { @Override public void onPrepared(MediaPlayer mp) { if (mp != null) { mp.start(); voice_anim.setImageResource(R.drawable.voice_anim); } } }); /** * 播放完成监听 */ mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() { @Override public void onCompletion(MediaPlayer mp) { if (mp.isPlaying()) { mp.release();// 释放资源 } animation = (AnimationDrawable) voice_anim.getDrawable(); if (animation != null && animation.isRunning()) { animation.stop(); } voice_anim.setImageResource(R.drawable.lcs_voice_receive); } }); mediaPlayer.setDataSource(voiceList.get(position)); // 缓冲 mediaPlayer.prepare(); } catch (Exception e) { Utils.showToast(MainActivity.this, "语音异常，加载失败"); } } /** * 展示声音列表的adapter */ class MyAdapter extends BaseAdapter { @Override public int getCount() { return voiceList.size() == 0 ? 0 : voiceList.size(); } @Override public Object getItem(int position) { return null; } @Override public long getItemId(int position) { return 0; } @Override public View getView(int position, View convertView, ViewGroup parent) { TextView tv = new TextView(MainActivity.this); tv.setText(voiceList.get(position)); tv.setTextSize(20); return tv; } } /** * 开始录制按钮的onTouch事件 * * @param v * @param event * @return */ @Override public boolean onTouch(View v, MotionEvent event) { if (v.getId() == R.id.voice) { //检查权限 if (!Utils.checkVoice(this)) { if (event.getAction() == MotionEvent.ACTION_DOWN) { Utils.showToast(this, "录音权限未打开，请打开录音权限!"); } return true; } //避免短时间里频繁操作 if (!getTimeTF(SystemClock.elapsedRealtime()) && event.getAction() == MotionEvent.ACTION_DOWN) { Utils.showToast(this, "操作过于频繁"); return true; } if (event.getAction() == MotionEvent.ACTION_DOWN) { setTime(SystemClock.elapsedRealtime()); } switch (event.getAction()) { case MotionEvent.ACTION_DOWN: int_x = event.getRawX(); int_y = event.getRawY(); VoicePopupWindow(); mychronometer.setBase(SystemClock.elapsedRealtime()); mychronometer.start(); MediaRecorderUtils.getInstence(voice_shengyin).MediaRecorderStart(); flag = true; mychronometer.setOnMyChronometerTickListener(new MyChronometer.OnMyChronometerTickListener() { @Override public void onMyChronometerTick(int time) { if (time == maxRecordTime || time > maxRecordTime) { mychronometer.setText("60"); setVoiceToUp(); } } }); break; case MotionEvent.ACTION_MOVE: if (flag) { if (Math.abs(int_y) - Math.abs(event.getRawY()) > 100.0 && flag) { voice_popupWindow.dismiss(); mychronometer.stop(); MediaRecorderUtils.getInstence(voice_shengyin).MediaRecorderStop(); MediaRecorderUtils.getInstence(voice_shengyin).MediaRecorderDelete(); flag = false; } } break; case MotionEvent.ACTION_CANCEL: if (flag) { voice_popupWindow.dismiss(); mychronometer.stop(); MediaRecorderUtils.getInstence(voice_shengyin).MediaRecorderStop(); } break; case MotionEvent.ACTION_UP: if (flag) { setVoiceToUp(); } break; } return true; } return false; } private long base_time = 0; private void setTime(long time) { base_time = time; } private boolean getTimeTF(long time) { int data = (int) (time - base_time) / oftenOperationTime; if (data > 1) { return true; } else { return false; } } /** * 声音popupwindow */ public void VoicePopupWindow() { View view = LayoutInflater.from(this).inflate(R.layout.voice_popupwindow, null); voice_popupWindow = new PopupWindow(this); voice_popupWindow.setWidth(WindowManager.LayoutParams.MATCH_PARENT); voice_popupWindow.setHeight(WindowManager.LayoutParams.MATCH_PARENT); voice_shengyin = (ImageView) view.findViewById(R.id.voice_shengyin); mychronometer = (MyChronometer) view.findViewById(R.id.mychronometer); voice_popupWindow.setContentView(view); voice_popupWindow.setFocusable(true); ColorDrawable dw = new ColorDrawable(0x00000000); voice_popupWindow.setBackgroundDrawable(dw); voice_popupWindow.showAsDropDown(voice_popup); } private void setVoiceToUp() { flag = false; voice_popupWindow.dismiss(); mychronometer.stop(); MediaRecorderUtils.getInstence(voice_shengyin).MediaRecorderStop(); int time = Integer.parseInt(mychronometer.getText().toString()); if (time != 0) { File file = new File(MediaRecorderUtils.getInstence(voice_shengyin).getPath()); if (file.length() > 0) { voiceList = Utils.getVideoFiles(Utils.IMAGE_SDCARD_MADER); myAdapter.notifyDataSetChanged(); } else { Utils.showToast(this, "录音失败，请检查权限"); } } else { Utils.showToast(this, "录音时间太短"); } } }
6、activity_main布局
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <TextView android:id="@+id/voice_popup" android:layout_width="match_parent" android:layout_height="1dip"/> <ListView android:id="@+id/show_voices" android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1"/> <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <ImageView android:id="@+id/voice_anim" android:layout_width="60dp" android:layout_height="30dp" android:layout_centerVertical="true" android:layout_marginLeft="30dp" android:background="#00ff00"/> <TextView android:id="@+id/stop_show_voice" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:layout_centerVertical="true" android:layout_gravity="center_horizontal" android:layout_marginBottom="20dp" android:layout_marginRight="20dp" android:background="#00ff00" android:padding="10dp" android:text="停止播放" android:textColor="#000000" android:textSize="20sp" /> <TextView android:id="@+id/show_voice_list" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerVertical="true" android:layout_gravity="center_horizontal" android:layout_marginBottom="20dp" android:layout_marginRight="20dp" android:layout_toLeftOf="@id/stop_show_voice" android:background="#00ff00" android:padding="10dp" android:text="列表" android:textColor="#000000" android:textSize="20sp" /> </RelativeLayout> <TextView android:id="@+id/voice" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:background="#00ff00" android:padding="10dp" android:text="开始录音" android:textColor="#000000" android:textSize="25sp"/> </LinearLayout>
7、voice_popupwindow布局代码：录音的时候，会出现以下图片中的popupwindow
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" android:background="@android:color/black" android:orientation="vertical" android:paddingBottom="40dip" android:paddingLeft="60dip" android:paddingRight="60dip" android:paddingTop="40dip"> <ImageView android:id="@+id/voice_shengyin" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:src="@drawable/rc_ic_volume_1"/> <com.chen.voicedemo.MyChronometer android:id="@+id/mychronometer" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:layout_gravity="center_horizontal" android:textColor="@android:color/white"/> </LinearLayout> </RelativeLayout>
8、还有一个动画布局，播放声音的时候，有个动画效果
<?xml version="1.0" encoding="utf-8"?> <animation-list xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/volume_animation" android:oneshot="false" > <item android:drawable="@drawable/rc_ic_voice_receive_play1" android:duration="100"/> <item android:drawable="@drawable/rc_ic_voice_receive_play2" android:duration="200"/> <item android:drawable="@drawable/rc_ic_voice_receive_play3" android:duration="300"/> </animation-list>
附录：用到的图片资源说明：如果手上没有这样的图片，可以随便用其他图片代替，有效果，就算成功
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。