Recorded Audio Can't be saved in /storage/emulated/0/AudioRecorder(保存的文件有时出现,有时不出现)

Recorded Audio Can't be saved in /storage/emulated/0/AudioRecorder (sometimes saved file appear, sometimes not appear)

我想将录制的音频保存在 /storage/emulated/0/AudioRecorder,这是我的代码:

private String getFilename() {
        File file = new File(Environment.getExternalStorageDirectory(), "/AudioRecorder");
        if (!file.exists()) {
            file.mkdirs();
        }

        createdDate = DateTools.getDate(System.currentTimeMillis(),"dd-MMM-yyyy hh:mm:ss");
        nameFile = createdDate + ".mp4";

        pathFile = (file.getAbsolutePath() + "/" + nameFile);
        return pathFile;
    }

private void startRecording() {
        if(RadioManager.getInstance().isPlaying()){
            RadioManager.getInstance().stopPlayer();
        }
        Toast.makeText(VoiceNoteActivity.this, "Mulai Rekam", Toast.LENGTH_SHORT).show();
        recorder = new MediaRecorder();
        recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
        recorder.setOutputFormat(output_formats);
        recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
        recorder.setOutputFile(getFilename());
        recorder.setOnErrorListener(errorListener);
        recorder.setOnInfoListener(infoListener);
        try {
            recorder.prepare();
            recorder.start();
            isRecord = true;
            countDown.start();
        } catch (IllegalStateException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private void stopRecording() {
        if (null != recorder) {
            countDown.cancel();

            timer = 0;
            seekbar.setProgress(timer);
            try{
                recorder.stop();
                recorder.reset();
                recorder.release();
                recorder = null;
            }catch(RuntimeException stopException){
                //handle cleanup here
                Log.e("Voice Note Activity ","Voice Recording Error : " +stopException.getMessage());
            }

            isRecord = false;
            time.setText("00:00");
            enableButtons(false);
        }
    }

文件有时会出现在/storage/emulated/0/AudioRecorder中,但有时不会出现(更常见的是不出现)。有人可以帮忙吗?

哼..我遇到了同样的问题,但图片不是声音。在我的情况下,图片没有出现,因为我没有把它扔到画廊。根据 android 开发者网站上的教程,是否是将图片扔到画廊的代码:

private void galleryAddPic() {
    Intent mediaScanIntent = new Intent("android.intent.action.MEDIA_SCANNER_SCAN_FILE");
    File f = new File(fileUri.getPath());
    Uri contentUri = Uri.fromFile(f);
    mediaScanIntent.setData(contentUri);
    this.sendBroadcast(mediaScanIntent);
}

也许你可以用它来制作语音文件。但是我没试过语音文件。

我已经通过添加以下代码解决了这个问题:

File file = new File(getFilename());
        if (!file.exists()){
            try {
                file.createNewFile();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

因此,当文件存在时,不需要再次创建该文件,但是当保存的文件不存在时,需要创建文件。