Android在内部存储器中创建文件夹

Question

有什么方法/可以在Android的内部存储器中创建文件夹吗？范例：- data-- com.test.app (application's main package)---databases (database files)---files (private files for application)---shared_prefs (shared preferences)---users (folder which I want to create)users例如，我可以在内部存储器中创建文件夹吗？

Answer 1

我用它在内部存储器中创建文件夹/文件：

File mydir = context.getDir("mydir", Context.MODE_PRIVATE); //Creating an internal dir;

File fileWithinMyDir = new File(mydir, "myfile"); //Getting a file within the dir.

FileOutputStream out = new FileOutputStream(fileWithinMyDir); //Use the stream as usual to write into the file.

Answer 2

context.getDir（“ mydir”，...）; 这将创建your.package / app_mydir /

 /** Retrieve or creates <b>path</b>structure inside in your /data/data/you.app.package/

 * @param path "dir1/dir2/dir3"

 * @return

 */

private File getChildrenFolder(String path) {

            File dir = context.getFilesDir();

    List<String> dirs = new ArrayList<String>(Arrays.<String>asList(path.split("/")));

    for(int i = 0; i < dirs.size(); ++i) {

        dir = new File(dir, dirs.get(i)); //Getting a file within the dir.

        if(!dir.exists()) {

            dir.mkdir();

        }

    }

    return dir;

}