Android Media Recorder录音播放源代码

View Code

1 package irdc.ex07_11;
2
3 import java.io.File;
4 import java.io.IOException;
5 import java.util.ArrayList;
6
7 import Android.app.Activity;
8 import Android.content.Intent;
9 import Android.media.MediaRecorder;
10 import Android.net.Uri;
11 import Android.os.Bundle;
12 import Android.os.Environment;
13 import Android.view.View;
14 import Android.widget.AdapterView;
15 import Android.widget.ArrayAdapter;
16 import Android.widget.CheckedTextView;
17 import Android.widget.ImageButton;
18 import Android.widget.ListView;
19 import Android.widget.TextView;
20 import Android.widget.Toast;
21
22 public class EX07_11 extends Activity
23 {
24   private ImageButton myButton1;
25   private ImageButton myButton2;
26   private ImageButton myButton3;
27   private ImageButton myButton4;
28
29   private ListView myListView1;
30   private String strTempFile = "ex07_11_";
31   private File myRecAudioFile;
32   private File myRecAudioDir;// 得到Sd卡path
33   private File myPlayFile;
34   private MediaRecorder mMediaRecorder01;
35
36   private ArrayList<String> recordFiles;
37   private ArrayAdapter<String> adapter;// 用于ListView的适配器
38   private TextView myTextView1;
39   private boolean sdCardExit;
40   private boolean isStopRecord;
41
42   /** Called when the activity is first created. */
43   @Override
44   public void onCreate(Bundle savedInstanceState)
45   {
46     super.onCreate(savedInstanceState);
47     setContentView(R.layout.main);
48     //主要是4个控制按钮(录制,停止,播放,删除)
49     myButton1 = (ImageButton) findViewById(R.id.ImageButton01);
50     myButton2 = (ImageButton) findViewById(R.id.ImageButton02);
51     myButton3 = (ImageButton) findViewById(R.id.ImageButton03);
52     myButton4 = (ImageButton) findViewById(R.id.ImageButton04);
53     //列表出指定文件夹中所有amr格式音频文件
54     myListView1 = (ListView) findViewById(R.id.ListView01);
55     myTextView1 = (TextView) findViewById(R.id.TextView01);
56
57     myButton2.setEnabled(false);
58     myButton3.setEnabled(false);
59     myButton4.setEnabled(false);

布局文件main.xml
  View Code

1 <?xml version="1.0" encoding="utf-8"?>
2 <LinearLayout xmlns:Android="http://schemas.Android.com/apk/res/Android"
3     Android:orientation="vertical" Android:layout_width="fill_parent"
4     Android:layout_height="fill_parent" Android:background="@drawable/white">
5     <LinearLayout Android:id="@+id/LinearLayout01"
6         Android:layout_width="wrap_content" Android:layout_height="wrap_content">
7         <ImageButton Android:id="@+id/ImageButton01"
8             Android:layout_width="wrap_content" Android:layout_height="wrap_content"
9             Androidrc="@drawable/record">
10         </ImageButton>
11         <ImageButton Android:id="@+id/ImageButton02"
12             Android:layout_width="wrap_content" Android:layout_height="wrap_content"
13             Androidrc="@drawable/stop">
14         </ImageButton>
15         <ImageButton Android:id="@+id/ImageButton03"
16             Android:layout_width="wrap_content" Android:layout_height="wrap_content"
17             Androidrc="@drawable/play">
18         </ImageButton>
19         <ImageButton Android:id="@+id/ImageButton04"
20             Android:layout_width="wrap_content" Android:layout_height="wrap_content"
21             Androidrc="@drawable/delete">
22         </ImageButton>
23     </LinearLayout>
24     <TextView Android:id="@+id/TextView01" Android:layout_width="wrap_content"
25         Android:layout_height="wrap_content" Android:textColor="@drawable/black">
26     </TextView>
27     <ListView Android:id="@+id/ListView01" Android:layout_width="wrap_content"
28         Android:layout_height="wrap_content" Android:background="@drawable/black">
29     </ListView>
30 </LinearLayout>

my_simple_list_item.xml文件
  View Code
1 <?xml version="1.0" encoding="utf-8"?>
2 <CheckedTextView xmlns:Android="http://schemas.Android.com/apk/res/Android"
3     Android:id="@+id/myCheckedTextView1" Android:layout_width="fill_parent"
4     Android:layout_height="fill_parent" Android:textColor="@drawable/white" />
权限设置
<uses-permission Android:name="Android.permission.RECORD_AUDIO" />

摘自 myphoebe