Android进行录音播放1(存储到指定文件夹)
这个开发范例大全上的一个例子:贴出来给大家分享:
EX07_11.java
package irdc.ex07_11;import java.io.File;import java.io.IOException;import java.util.ArrayList;import android.app.Activity;import android.content.Intent;import android.media.MediaRecorder;import android.net.Uri;import android.os.Bundle;import android.os.Environment;import android.view.View;import android.widget.AdapterView;import android.widget.ArrayAdapter;import android.widget.CheckedTextView;import android.widget.ImageButton;import android.widget.ListView;import android.widget.TextView;import android.widget.Toast;public class EX07_11 extends Activity{private ImageButton myButton1;private ImageButton myButton2;private ImageButton myButton3;private ImageButton myButton4;private ListView myListView1;private String strTempFile = "ex07_11_";private File myRecAudioFile;private File myRecAudioDir;// 得到Sd卡pathprivate File myPlayFile;private MediaRecorder mMediaRecorder01;private ArrayList<String> recordFiles;private ArrayAdapter<String> adapter;// 用于ListView的适配器private TextView myTextView1;private boolean sdCardExit;private boolean isStopRecord;/** Called when the activity is first created. */@Overridepublic void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.main); //主要是4个控制按钮(录制,停止,播放,删除) myButton1 = (ImageButton) findViewById(R.id.ImageButton01); myButton2 = (ImageButton) findViewById(R.id.ImageButton02); myButton3 = (ImageButton) findViewById(R.id.ImageButton03); myButton4 = (ImageButton) findViewById(R.id.ImageButton04); //列表出指定文件夹中所有amr格式音频文件 myListView1 = (ListView) findViewById(R.id.ListView01); myTextView1 = (TextView) findViewById(R.id.TextView01); myButton2.setEnabled(false); myButton3.setEnabled(false); myButton4.setEnabled(false); /* 判断SD Card是否插入 */ sdCardExit = Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED); /* 取得SD Card路径作为录音的文件位置 */ if (sdCardExit) { myRecAudioDir = Environment.getExternalStorageDirectory(); } /* 取得SD Card目录里的所有.amr文件 */ getRecordFiles(); adapter = new ArrayAdapter<String>(this, R.layout.my_simple_list_item, recordFiles); /* 将ArrayAdapter添加ListView对象中 */ myListView1.setAdapter(adapter); /* 录音 */ myButton1.setOnClickListener(new ImageButton.OnClickListener() { @Override public void onClick(View arg0) { try { if (!sdCardExit) { Toast.makeText(EX07_11.this, "请插入SD Card", Toast.LENGTH_LONG).show(); return; } // 创建录音频文件 //这种创建方式生成的文件名是随机的,所以我本人不是很习惯// myRecAudioFile = File.createTempFile(strTempFile, ".amr",// myRecAudioDir); File sdcardDir = Environment.getExternalStorageDirectory(); String path = sdcardDir.getParent() + sdcardDir.getName(); String filePath = path + java.io.File.separator + "Demo"; //创建文件，使用自己指定文件名(这里我手动创建好了,我们也可以利用mkdirs的方法来创建) myRecAudioFile = new File(filePath,"new.amr"); mMediaRecorder01 = new MediaRecorder(); /* 设置录音来源为麦克风 */ mMediaRecorder01 .setAudioSource(MediaRecorder.AudioSource.MIC); mMediaRecorder01 .setOutputFormat(MediaRecorder.OutputFormat.DEFAULT); mMediaRecorder01 .setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT); //文件保存位置 mMediaRecorder01.setOutputFile(myRecAudioFile .getAbsolutePath()); mMediaRecorder01.prepare(); mMediaRecorder01.start(); myTextView1.setText("录音中"); myButton2.setEnabled(true); myButton3.setEnabled(false); myButton4.setEnabled(false); isStopRecord = false; } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }); /* 停止 */ myButton2.setOnClickListener(new ImageButton.OnClickListener() { @Override public void onClick(View arg0) { // TODO Auto-generated method stub if (myRecAudioFile != null) { /* 停止录音 */ mMediaRecorder01.stop(); mMediaRecorder01.release(); mMediaRecorder01 = null; /* 将录音频文件名给Adapter */ adapter.add(myRecAudioFile.getName()); myTextView1.setText("停止：" + myRecAudioFile.getName()); myButton2.setEnabled(false); isStopRecord = true; } } }); /* 播放 */ myButton3.setOnClickListener(new ImageButton.OnClickListener() { @Override public void onClick(View arg0) { // TODO Auto-generated method stub //if (myPlayFile != null && myPlayFile.exists()) //{ /* 打开播放的程序 */ // openFile(myPlayFile); System.out.println("_________________"+myRecAudioFile.getAbsolutePath()); //这里我们也可以加个判断: //if(是否存在音频文件) myRecAudioFile.exists() openFile(myRecAudioFile); //} } }); /* 删除 */ myButton4.setOnClickListener(new ImageButton.OnClickListener() { @Override public void onClick(View arg0) { // TODO Auto-generated method stub if (myPlayFile != null) { /* 先将Adapter删除文件名 */ adapter.remove(myPlayFile.getName()); /* 删除文件 */ if (myPlayFile.exists()) myPlayFile.delete(); myTextView1.setText("完成删除"); } } }); myListView1 .setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) { /* 当有点击档名时将删除及播放按钮Enable */ myButton3.setEnabled(true); myButton4.setEnabled(true); System.out.println("_______________" + myRecAudioDir.getAbsolutePath());// myPlayFile = new File(myRecAudioDir.getAbsolutePath()// + File.separator// + ((CheckedTextView) arg1).getText()); myTextView1.setText("你选的是：" + ((CheckedTextView) arg1).getText()); } });}@Overrideprotected void onStop(){ if (mMediaRecorder01 != null && !isStopRecord) { /* 停止录音 */ mMediaRecorder01.stop(); mMediaRecorder01.release(); mMediaRecorder01 = null; } super.onStop();}// 存储一个音频文件数组到list当中private void getRecordFiles(){ recordFiles = new ArrayList<String>(); if (sdCardExit) { File files[] = myRecAudioDir.listFiles(); if (files != null) { for (int i = 0; i < files.length; i++) { if (files.getName().indexOf(".") >= 0) { /* 只取.amr文件 */ String fileS = files.getName().substring( files.getName().indexOf(".")); if (fileS.toLowerCase().equals(".amr")) recordFiles.add(files.getName()); } } } }}/* 打开播放录音文件的程序 */private void openFile(File f){ Intent intent = new Intent(); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); intent.setAction(android.content.Intent.ACTION_VIEW); String type = getMIMEType(f); intent.setDataAndType(Uri.fromFile(f), type); startActivity(intent);}private String getMIMEType(File f){ String end = f .getName() .substring(f.getName().lastIndexOf(".") + 1, f.getName().length()).toLowerCase(); String type = ""; if (end.equals("mp3") || end.equals("aac") || end.equals("aac") || end.equals("amr") || end.equals("mpeg") || end.equals("mp4")) { type = "audio"; } else if (end.equals("jpg") || end.equals("gif") || end.equals("png") || end.equals("jpeg")) { type = "image"; } else { type = "*"; } type += "/*"; return type;}}
另外是界面文件
main.xml
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:orientation="vertical" android:layout_width="fill_parent"android:layout_height="fill_parent" android:background="@drawable/white"><LinearLayout android:id="@+id/LinearLayout01"android:layout_width="wrap_content" android:layout_height="wrap_content"><ImageButton android:id="@+id/ImageButton01"android:layout_width="wrap_content" android:layout_height="wrap_content"android:src="@drawable/record"></ImageButton><ImageButton android:id="@+id/ImageButton02"android:layout_width="wrap_content" android:layout_height="wrap_content"android:src="@drawable/stop"></ImageButton><ImageButton android:id="@+id/ImageButton03"android:layout_width="wrap_content" android:layout_height="wrap_content"android:src="@drawable/play"></ImageButton><ImageButton android:id="@+id/ImageButton04"android:layout_width="wrap_content" android:layout_height="wrap_content"android:src="@drawable/delete"></ImageButton></LinearLayout><TextView android:id="@+id/TextView01" android:layout_width="wrap_content"android:layout_height="wrap_content" android:textColor="@drawable/black"></TextView><ListView android:id="@+id/ListView01" android:layout_width="wrap_content"android:layout_height="wrap_content" android:background="@drawable/black"></ListView></LinearLayout>
和my_simple_list_item.xml文件
<?xml version="1.0" encoding="utf-8"?><CheckedTextView xmlns:android="http://schemas.android.com/apk/res/android"android:id="@+id/myCheckedTextView1" android:layout_width="fill_parent"android:layout_height="fill_parent" android:textColor="@drawable/white" />
这个CheckedTextView我还没有使用过，哪位知道的可以留言告诉我一些资料来源啥的
最后权限:
<uses-permission android:name="android.permission.RECORD_AUDIO" />
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