public static String getExternalAppDocumentsPath() {
        if (isExternalStorageDisable()) return "";
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
            return getAbsolutePath(Utils.getApp().getExternalFilesDir(null)) + "/Documents";
        }
        return getAbsolutePath(Utils.getApp().getExternalFilesDir(Environment.DIRECTORY_DOCUMENTS));
    }
Return the path of /storage/emulated/0/Android/data/package/files/Documents.

@return the path of /storage/emulated/0/Android/data/package/files/Documents
imitate/src/main/java/com/engineer/imitate/util/PathUtils.java