Javascript 通过单击按钮进行录制和播放
我有一个代码,可以播放声音,通过单击一个按钮录制音频,并通过单击另一个按钮播放录制的文件。我想知道如何修改它,以便在我单击第一个按钮时录制和播放声音,这样当我单击第二个按钮时,我可以听到我首先播放的录制声音 这意味着:我想知道如何在record文件夹中开始录制和播放我的音频文件,两者都是,只需单击一个按钮 这是我刚才的代码:Javascript 通过单击按钮进行录制和播放,javascript,android,audio,audio-recording,Javascript,Android,Audio,Audio Recording,我有一个代码,可以播放声音,通过单击一个按钮录制音频,并通过单击另一个按钮播放录制的文件。我想知道如何修改它,以便在我单击第一个按钮时录制和播放声音,这样当我单击第二个按钮时,我可以听到我首先播放的录制声音 这意味着:我想知道如何在record文件夹中开始录制和播放我的音频文件,两者都是,只需单击一个按钮 这是我刚才的代码: public class MediaPlayerExample2Activity extends Activity { private static final S
public class MediaPlayerExample2Activity extends Activity {
private static final String LOG_TAG = "AudioRecordTest";
private static String mFileName = null;
private RecordButton mRecordButton = null;
private MediaRecorder mRecorder = null;
private PlayButton mPlayButton = null;
private MediaPlayer mPlayer = null;
private void onRecord(boolean start) {
if (start) {
startRecording(); }
else {
stopRecording(); } }
private void onPlay(boolean start) {
if (start) {
startPlaying(); }
else {
stopPlaying(); } }
private void startPlaying() {
mPlayer = new MediaPlayer();
try {
mPlayer.setDataSource(mFileName);
mPlayer.prepare();
mPlayer.start(); }
catch (IOException e) {
Log.e(LOG_TAG, "prepare() failed");
} } private void stopPlaying() {
mPlayer.release();
mPlayer = null; }
private void startRecording() {
mRecorder = new MediaRecorder();
mRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
mRecorder.setOutputFile(mFileName);
mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
try {
mRecorder.prepare();
}
catch (IOException e) {
Log.e(LOG_TAG, "prepare() failed");
} mRecorder.start();
}
private void stopRecording() {
mRecorder.stop();
mRecorder.release();
mRecorder = null;
}
class RecordButton extends Button {
boolean mStartRecording = true;
OnClickListener clicker = new OnClickListener() {
public void onClick(View v) {
onRecord(mStartRecording);
if (mStartRecording) {
setText("Stop recording");
}
else {
setText("Start recording");
}
mStartRecording = !mStartRecording; }
};
public RecordButton(Context ctx) {
super(ctx);
setText("Start recording");
setOnClickListener(clicker);
} }
class PlayButton extends Button {
boolean mStartPlaying = true;
OnClickListener clicker = new OnClickListener() {
public void onClick(View v) {
onPlay(mStartPlaying);
if (mStartPlaying) {
setText("Stop playing");
}
else {
setText("Start playing");
}
mStartPlaying = !mStartPlaying;
} };
public PlayButton(Context ctx) {
super(ctx);
setText("Start playing");
setOnClickListener(clicker);
} }
public MediaPlayerExample2Activity() {
mFileName = Environment.getExternalStorageDirectory().getAbsolutePath();
mFileName += "/audiorecordtest.3gp";
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
MediaPlayer mPlayer = MediaPlayer.create(this, R.raw.pru);
mPlayer.start();
LinearLayout ll = new LinearLayout(this);
mRecordButton = new RecordButton(this);
ll.addView(mRecordButton,
new LinearLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT,
0)); setContentView(ll);
mPlayButton = new PlayButton(this);
ll.addView(mPlayButton,
new LinearLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT,
0)); setContentView(ll); }
@Override
public void onPause() {
super.onPause();
if (mRecorder != null) {
mRecorder.release();
mRecorder = null;
}
if (mPlayer != null) {
mPlayer.release();
mPlayer = null;
} }}
谢谢!!我希望你能理解我的问题 事实上,我不明白你想要什么。您想使用麦克风同时播放音乐和录制smth吗?或者你只想录制smth并在录制后播放它?同时:当我单击按钮时,我想录制并稍后播放音频文件我的意思是:播放一个声音并突然打开麦克风,只需单击一个按钮。因此,你希望以以下方式使用一个按钮:第一次单击它将开始录制,第二次点击它将完成录制并开始播放?我说得对吗?如果我第三次点击它该怎么办?只需点击一次,我想要:第一,开始录音,第二,开始播放。在第二次单击中,我想停止这两项任务。