一个目录中创建的子目录，并能够将数据保存到它 [英] Creating subdirectories within a directory and be able to save data into it

问题描述

我是新来的Andr​​oid开发方面，我需要帮助。我有两个问题分别是：

I'm new to android developing, and I'm in need of help. I've got two problems which are:

1. 我不知道如何创建我的主目录中两个子目录。我知道里面怎么一个目录下创建子目录（文件目录=新的文件（Environment.getExternalStorageDirectory（）+的Saling-威卡/音频和放大器;文本文件）; ），但我确实想在那里将是我的主要子目录里面的两个子目录。（音频文件和放大器;文本文件中的Saling，威卡目录这是主要的目录内不同的两个子目录）



2. 我不知道我怎么我会能够到我的数据保存到我创建子目录。
   这里是我的记录模块，其中音频数据是从哪里来的code：

1. I don't know how to create two subdirectories inside my main directory. I know how to create subdirectory inside of a directory (File directory = new File(Environment.getExternalStorageDirectory()+"Saling-Wika/Audio&Text Files");), but what I do want is there would be two subdirectories inside of my main subdirectory (The Audio Files & Text Files are different two subdirectories inside the Saling-Wika directory which is the main directory).

2. I don't know how I'm gonna be able to save my data into the subdirectories I've created. Here is the code of my record module where the audio data is coming from:

public class RecordModule extends Activity {

Button SpeakBtn, StopBtn;
private MediaRecorder myAudioRecorder;
private String outputFile = null;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.recordmodule);

    SpeakBtn = (Button) findViewById(R.id.SpeakBtn);
    StopBtn = (Button) findViewById(R.id.StopBtn);

    StopBtn.setEnabled(false);
    SpeakBtn.setEnabled(true);
    SimpleDateFormat datetime = new SimpleDateFormat("ddMMyyyyhhmmss");
    String format = datetime.format(new Date());
    outputFile = Environment.getExternalStorageDirectory().getAbsolutePath() + "/" + format + ".3gp";

    myAudioRecorder = new MediaRecorder();
    myAudioRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
    myAudioRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
    myAudioRecorder.setAudioEncoder(MediaRecorder.OutputFormat.AMR_NB);
    myAudioRecorder.setOutputFile(outputFile);

    SpeakBtn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            try {
                myAudioRecorder.prepare();
                myAudioRecorder.start();
            }

            catch (IllegalStateException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

            catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

            SpeakBtn.setEnabled(false);
            StopBtn.setEnabled(true);

            Toast.makeText(getApplicationContext(), "Recording started", Toast.LENGTH_SHORT).show();
        }
    });

    StopBtn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            myAudioRecorder.stop();
            myAudioRecorder.release();
            myAudioRecorder = null;

            StopBtn.setEnabled(false);
            SpeakBtn.setEnabled(true);

            Toast.makeText(getApplicationContext(), "Audio recorded successfully", Toast.LENGTH_SHORT).show();
        }
    });
}

我想我的音频数据将被存储到音频文件目录，但我不知道我是如何会是能够做到这一点。请帮我。

I want my audio data will be stored into the Audio Files directory, but I don't know how I'm gonna be able to do that. Please help me.

推荐答案

我终于解决了我的问题，这里是我所做的解决方案：

I've finally solved my problems, and here are the solutions I've done:

String folder_main = "Saling-Wika"

File MainDir = new File (Environment.getExternalStorage();, folder_main);
if (!MainDir.exists()){
   MainDir.mkdirs();
}

File f1 = new File (Environment.getExternalStorage() + "/" + folder_main, "Audio Files");
if (!MainDir.exists()){
   MainDir.mkdirs();
}

File f2 = new File (Environment.getExternalStorage() + "/" + folder_main, "Text Files");
if (!MainDir.exists()){
   MainDir.mkdirs();
}
}

下面是code，我如何创建两个子目录（音频和放大器;文本文件的文件夹）的主目录（萨零-威卡fodler）

Here is the code how I've created two subdirectories (Audio & Text Files folders) inside of the main directory (Saling-Wika fodler).

outputFile = Environment.getExternalStorageDirectory().getAbsolutePath() + "/Saling-Wika/Audio Files/" + format + ".3gp";

这是我的音频文件是如何被保存到音频文件的文件夹。

And here is how my audio files are being saved into the Audio Files folder.

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