我试图录制音频,当调试到达.prepare()
这是我的Record()
方法。
private void Grabar(View v) {
mediaRecorder = new MediaRecorder();
Date today = Calendar.getInstance().getTime();
String nombrefichero = String.valueOf(today.getDate()) + "-"
+ String.valueOf(today.getMonth() + 1) + "-"
+ String.valueOf(today.getYear() + 1900) + "_"
+ String.valueOf(today.getHours()) + "."
+ String.valueOf(today.getMinutes())+"."+String.valueOf(today.getSeconds()) +".3gp";
mediaRecorder.setOutputFile(VarGlobales.Ruta+"/"+VarGlobales.Trabajo+"/Audio/"+nombrefichero);
// VarGlobales.Ruta -> Environment.getExternalStorageDirectory().getAbsolutePath();
// VarGlobales.Trabajo -> 001
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
try {
mediaRecorder.prepare();
mediaRecorder.start();
Toast.makeText(contexto, "Grabando...", Toast.LENGTH_SHORT).show();
} catch (IOException e)
{
Toast.makeText(contexto, "Fallo en la grabación", Toast.LENGTH_SHORT).show();
}
}
AndroidManifest.xml具有RECORD_AUDIO
和WRITE_EXTERNAL_STORAGE
权限。
例外说:
java.io.FileNotFoundException: /storage/sdcard0/001/Audio/25-7-2014_8.53.6.3gp: open failed: ENOENT (No such file or directory)
异常表示该文件不存在。不要以为我现在正在创造它吗?
我做错了什么?
答案 0 :(得分:10)
请阅读文档。它表示应在 mediaRecorder.setOutputFile()
之后和 setOutputFormat()
之前调用 prepare()
。
//在sdcard中创建目录:
String path = Environment.getExternalStorageDirectory().getAbsolutePath() + "/MyFolder/";
File dir = new File(path);
if(!dir.exists())
dir.mkdirs();
String myfile = path + "filename" + ".mp4";
然后将其指定为输出文件。
setOutputFile(myfile);