这段代码过时了吗？获取外部存储公共目录（）

Question

为什么这段代码是我画白线的问题 什么问题 有什么办法可以代替吗？

File path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MUSIC);

正是这行代码用白线法画出来的 getExternalStoragePublicDirectory

Answer 1

getExternalStoragePublicDirectory() --> 已在 API 级别 29 中弃用

为了改善用户隐私，直接访问共享/外部存储 设备已弃用。当应用程序以 Build.VERSION_CODES.Q 为目标时， 从此方法返回的路径不再可直接访问 应用。应用程序可以继续访问存储在共享/外部的内容 通过迁移到替代方案来存储，例如 Context#getExternalFilesDir(String)、MediaStore 或 意图#ACTION_OPEN_DOCUMENT。

void createExternalStoragePrivateFile() {
    // Create a path where we will place our private file on external
    // storage.
    File file = new File(getExternalFilesDir(null), "DemoFile.jpg");

    try {
        // Very simple code to copy a picture from the application's
        // resource into the external file.  Note that this code does
        // no error checking, and assumes the picture is small (does not
        // try to copy it in chunks).  Note that if external storage is
        // not currently mounted this will silently fail.
        InputStream is = getResources().openRawResource(R.drawable.balloons);
        OutputStream os = new FileOutputStream(file);
        byte[] data = new byte[is.available()];
        is.read(data);
        os.write(data);
        is.close();
        os.close();
    } catch (IOException e) {
        // Unable to create file, likely because external storage is
        // not currently mounted.
        Log.w("ExternalStorage", "Error writing " + file, e);
    }
}