public class AudioListView extends ListActivity implements OnClickListener {
private Button play_btn;// 播放
private Button record_btn;// 录音
private Button pause_btn;// 暂停
private Button del_btn;// 删除
private TextView list_id_txt;
private File fileName;/* 录制的音频文件 */
private File filePath;
String SDPATH = null;
private static final String AUDIO_DIR = Environment
.getExternalStorageDirectory().getAbsolutePath()
+ File.separator + "mobileoa" + File.separator + "audio";// 录音目录
private MediaRecorder mMediaRecorder;/* MediaRecorder对象 */
private List mMusicList = new ArrayList();/* 录音文件列表 */
private String tempName = "";/* 零时文件的前缀 */
private int filePosition = 0;// 文件ID
/* 顶部菜单 */
Button tBack_btn;// 返回按钮
Button tMenu_btn;// 菜单按钮
TextView title_txt;// 标题
RelativeLayout audioLayout;
RelativeLayout mainFrame;
GlobalVariable gv;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
gv = (GlobalVariable) getApplication();
gv.getActivityList().add(this);
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);// 去掉信息栏注意,这个设置必须放在设置布局前面,不然会报错
/* 渲染主窗体 */
LayoutInflater inflater = LayoutInflater.from(AudioListView.this);
mainFrame = (RelativeLayout) inflater.inflate(
R.layout.audiolistview, null);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
addContentView(mainFrame, params);
mainFrame.setBackgroundResource(gv.getBackground());
/* 主窗体中添加公共的顶部菜单 */
RelativeLayout topmenu = (RelativeLayout) inflater.inflate(
R.layout.topmenu, null);
mainFrame.addView(topmenu, params);
this.getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE,
R.layout.title);
/*----------------顶部菜单的处理----------------------------- */
// 获得标题对象
title_txt = (TextView) findViewById(R.id.title_text);
// 设置标题的内容
title_txt.setText("录音");
tBack_btn = (Button) findViewById(R.id.topback_btn);// 获得返回按钮对象
tBack_btn.setOnClickListener(new OnClickListener() {// 注册返回按钮事件
@Override
public void onClick(View v) {
AudioListView.this.finish();
}
});
tMenu_btn = (Button) findViewById(R.id.topemenu_btn);// 获得菜单按钮对象
tMenu_btn.setVisibility(View.INVISIBLE);
checkState();
musicList();/* 更新所有录音文件到List中,这边的方法只被执行一次 */
findView();
setListener();
}
// 检查是否有内存卡
private void checkState() {
if (Environment.getExternalStorageState().equals(
Environment.MEDIA_MOUNTED)) {
File file = new File(AUDIO_DIR);
if (!file.isDirectory()) {
file.mkdirs();
}
filePath = file;
} else {
Toast.makeText(AudioListView.this, "SD卡不存在!无法保存相片", 3000).show();
}
}
@Override
protected void onPause() {
super.onPause();
clearList();
musicList();/* 更新所有录音文件到List中 */
}
@Override
protected void onPostResume() {
super.onPostResume();
clearList();
musicList();/* 更新所有录音文件到List中 */
}
/**
* 控件实例化
*/
private void findView() {
play_btn = find(play_btn, R.id.play_btn);
record_btn = find(record_btn, R.id.record_btn);
pause_btn = find(pause_btn, R.id.pause_btn);
del_btn = find(del_btn, R.id.del_btn);
list_id_txt = (TextView) findViewById(R.id.list_id_txt);
}
/**
* Button实例化方法
*/
public Button find(Button button, int id) {
button = (Button) findViewById(id);
return button;
}
/**
* 注册监听事件
*/
private void setListener() {
play_btn.setOnClickListener(this);
record_btn.setOnClickListener(this);
pause_btn.setOnClickListener(this);
del_btn.setOnClickListener(this);
// back_btn.setOnClickListener(new BackOnClickListener());
}
/**
* 返回按钮的监听事件
*/
class BackOnClickListener implements OnClickListener {
@Override
public void onClick(View v) {
Service.TurnMainView(AudioListView.this, MainView.class, MainView2.class, getString(R.string.dbname));
AudioListView.this.finish();
}
}
/**
* 播放录音
*/
private void playMusic(File file) {
Intent intent = new Intent();
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setAction(android.content.Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(file), "audio");/* 设置文件类型 */
startActivity(intent);
}
/**
* 根据位置获取文件
*
* @param position
*/
public File getFile(int position) {
File playfile = new File(filePath.getAbsolutePath() + File.separator
+ mMusicList.get(position));
return playfile;
}
/**
* 列表项监听事件
*/
protected void onListItemClick(ListView l, View v, int position, long id) {
File playfile = new File(filePath.getAbsolutePath() + File.separator
+ mMusicList.get(position));
list_id_txt.setText(playfile.getName());// 设置示当前文件名
filePosition = position;
}
/**
* 添加播放列表
*/
public void musicList() {
// 取得指定位置的文件设置显示到播放列表
File home = filePath;
if (home.listFiles(new MusicFilter()).length > 0) {
for (File file : home.listFiles(new MusicFilter())) {
mMusicList.add(file.getName());
}
ArrayAdapter musicList = new ArrayAdapter(
AudioListView.this, R.layout.listaudio, mMusicList);
setListAdapter(musicList);
}
}
// 先清空ListView原来的数据
public void clearList() {
mMusicList.clear();
ArrayAdapter musicList = new ArrayAdapter(
AudioListView.this, R.layout.listaudio, mMusicList);
setListAdapter(musicList);
}
/* 过滤文件类型 */
class MusicFilter implements FilenameFilter {
public boolean accept(File dir, String name) {
return (name.endsWith(".amr"));
}
}
@Override
public void onClick(View v) {
int id = v.getId();
String s = list_id_txt.getText().toString();
switch (id) {
case R.id.record_btn:// 录音
pause_btn.setEnabled(true);
record_btn.setEnabled(false);
Toast.makeText(AudioListView.this, "开始录音...", 1000).show();
record_btn.setText("录音中...");
try {
tempName = new Universal().getTimeStr() + "_";// 获取时间
fileName = File.createTempFile(tempName, ".amr", filePath);/* 创建录音文件 */
mMediaRecorder = new MediaRecorder();/* 实例化MediaRecorder对象 */
mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);/* 设置麦克风 */
mMediaRecorder
.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT);/* 设置输出文件的格式 */
mMediaRecorder
.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);/* 设置音频文件的编码 */
mMediaRecorder.setOutputFile(fileName.getAbsolutePath());/* 设置输出文件的路径 */
mMediaRecorder.prepare();/* 准备 */
mMediaRecorder.start();/* 开始 */
} catch (IOException e) {
e.printStackTrace();
}
break;
case R.id.play_btn:// 播放
if (s.equals("")) {
Toast.makeText(AudioListView.this, "请选择一条要播放的录音！", 1000).show();
} else {
playMusic(getFile(filePosition));
}
break;
case R.id.pause_btn:// 停止
record_btn.setText("录音");
if (fileName != null) {
mMediaRecorder.stop();/* 停止录音 */
mMusicList.add(fileName.getName());/* 将录音文件添加到List中 */
ArrayAdapter musicList = new ArrayAdapter(
AudioListView.this, R.layout.listaudio, mMusicList);
setListAdapter(musicList);
mMediaRecorder.release();/* 释放MediaRecorder */
mMediaRecorder = null;
}
pause_btn.setEnabled(false);
record_btn.setEnabled(true);
new AlertDialog.Builder(AudioListView.this)
.setTitle("提示")
.setMessage("录音完成，是否添加到邮件附件？")
.setPositiveButton("添加", new DialogInterface.OnClickListener(){
@Override
public void onClick(DialogInterface dialog, int which) {
FileChooser.fileName = fileName.getName();
FileChooser.filePath = fileName.getAbsolutePath();
finish();
}
})
.setNegativeButton("取消", null).create().show();
break;
case R.id.del_btn:// 删除
if (s.equals("")) {
Toast.makeText(AudioListView.this, "请选择一条要删除的记录！", 1000).show();
} else {
new AlertDialog.Builder(AudioListView.this).setMessage(
"确定要删除吗？").setPositiveButton("是",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
File file = new File(filePath.getAbsolutePath()
+ File.separator
+ mMusicList.get(filePosition));
file.delete();
clearList();// 先清空原数据
musicList();// 重新读取数据
list_id_txt.setText("");
}
}).setNegativeButton("否",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
// finish();
}
}).show();
}
break;
default:
break;
}
}
}
