将音频保存到SD卡

如何解决将音频保存到SD卡

我一直想将音频保存到SdCard。

File dir = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MUSIC) + "/AUdio/");
        boolean success1;
        if (!dir.exists()) {

            MessageSystem("SAVING FOLDER: " + dir + " -- DON'T EXISTS ");

            //CASE NOT -  We create
            success1 = dir.mkdir();


            if (success1) {
                // Do something on success
                MessageSystem("foldersd: " + dir.toString() +  " CREATED!!");


            } else {
                // Do something else on failure
                MessageSystem("foldersd: " + dir.toString() +  " NOT CREATED!!");

            }

        }

我也试图保存到：

        File dir = new File(Environment.getExternalStorageDirectory() + "/AUdio/");

在两种情况下都可以，但是保存到内部存储。从来没有SD卡

我使用了getExternalFilesDirs（）。但是，如果用户卸载应用程序，则会丢失文件。

我不要。

如何将音频保存在SD卡公用文件夹中或创建一个新文件夹。

任何时候它都会创建到内部存储中。

任何解决方案？

我尝试过此操作，可以在SD卡中创建一个文档。和一个空的。现在，我想将MediaRecorder音频保存到其中。但是我需要道路。我怎么能得到它？

Intent intent = new Intent(Intent.ACTION_CREATE_DOCUMENT);
        intent.addCategory(Intent.CATEGORY_OPENABLE);
        intent.setType("application/mpeg");
        intent.putExtra(Intent.EXTRA_TITLE,audio_name);

        // Optionally,specify a URI for the directory that should be opened in
        // the system file picker when your app creates the document.
        intent.putExtra(DocumentsContract.EXTRA_INITIAL_URI,pickerInitialUri);

        startActivityForResult(intent,CREATE_FILE);

解决方法

您可以尝试一下

public static final String DEFAULT_STORAGE_LOCATION = "/sdcard/AudioRecording";

File dir = new File(DEFAULT_STORAGE_LOCATION);

if (!dir.exists()) {
try {
    dir.mkdirs();
} catch (Exception e) {
    Log.e("CallRecorder","RecordService::makeOutputFile unable to create directory " + dir + ": " + e);
    Toast t = Toast.makeText(getApplicationContext(),"CallRecorder was unable to create the directory " + dir + " to store recordings: " + e,Toast.LENGTH_LONG);
    t.show();
    return null;
}
} else {
if (!dir.canWrite()) {
    Log.e(TAG,"RecordService::makeOutputFile does not have write permission for directory: " + dir);
    Toast t = Toast.makeText(getApplicationContext(),"CallRecorder does not have write permission for the directory directory " + dir + " to store recordings",Toast.LENGTH_LONG);
    t.show();
    return null;
}

1. 您可以通过查询系统来获取sd卡的位置，

   Environment.getExternalStorageDirectory（）;

并且不要忘记添加用户权限

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>