我对编程还很陌生,我想学习如何制作一个允许用户录制音频的应用程序,从而将其保存到应用程序的数据文件夹中。我设法完成了录音部分,但只设法将其保存到 SD 卡中。有人愿意帮我弄清楚如何将我的音频保存到内部存储器中吗?
private void playRecording() throws Exception {
ditchMediaPlayer();
mediaPlayer = new MediaPlayer();
mediaPlayer.setDataSource(OUTPUT_FILE);
mediaPlayer.prepare();
mediaPlayer.start();
}
private void stopRecording() {
if(recorder != null)
recorder.stop();
}
private void beginRecording() throws Exception {
ditchMediaRecorder();
File outFile = new File(OUTPUT_FILE);
if(outFile.exists())
outFile.delete();
recorder = new MediaRecorder();
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
recorder.setOutputFile(OUTPUT_FILE);
recorder.prepare();
recorder.start();
}
private void ditchMediaRecorder() {
if (recorder != null)
recorder.release();
}
public void recordOnClick(View v) {
//when record button is pressed
try{
beginRecording();
}catch (Exception e){
e.printStackTrace();
}
btnRecord.setVisibility(View.INVISIBLE);
btnStop.setVisibility(View.VISIBLE);
}
public void stopOnClick(View v) {
//when stop button is pressed
try{
stopRecording();
}
catch (Exception e){
e.printStackTrace();
}
btnStop.setVisibility(View.INVISIBLE);
btnRecord.setVisibility(View.INVISIBLE);
btnDelete.setVisibility(View.VISIBLE);
btnPlay.setVisibility(View.VISIBLE);
btnShare.setVisibility(View.VISIBLE);
}
public void playOnClick(View v) {
//when play button is pressed
try{
playRecording();
}
catch (Exception e){
e.printStackTrace();
}
btnStop.setVisibility(View.INVISIBLE);
btnRecord.setVisibility(View.INVISIBLE);
}
这是我的 onClick,我将在其中指定每个按钮的输出(我正在做一个图表,所以我有大约 44 个按钮!)
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn1:
OUTPUT_FILE=Environment.getExternalStorageDirectory()+"/y1.3gpp";
File file1 = new File(Environment.getExternalStorageDirectory()+"/y1.3gpp");
if (file1.exists()) {
btnPlay.setVisibility(View.VISIBLE);
btnDelete.setVisibility(View.VISIBLE);
btnShare.setVisibility(View.VISIBLE);
}
else {
btnRecord.setVisibility(View.VISIBLE);
}
break;
case R.id.btn2:
OUTPUT_FILE=Environment.getExternalStorageDirectory()+"/y2.3gpp";
File file2 = new File(Environment.getExternalStorageDirectory()+ "/y2.3gpp" );
if (file2.exists()) {
btnPlay.setVisibility(View.VISIBLE);
btnDelete.setVisibility(View.VISIBLE);
btnShare.setVisibility(View.VISIBLE);
}
else {
btnRecord.setVisibility(View.VISIBLE);
}
break;
最佳答案
也许你想看看这个? Creating folder in internal Memory to save files and retrieve them later
//Creating an internal directory
File mydir = context.getDir("mydir", Context.MODE_PRIVATE);
//Getting a file within the dir.
File fileWithinMyDir = new File(mydir, "myfile");
FileOutputStream out = new FileOutputStream(fileWithinMyDir);
//Use the stream as usual to write into the file
关于android - 录制音频并保存到应用程序的数据文件夹中,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/14271122/