Android see created folders on file explorer

Question

I am creating folder with following code:

File f = new File(Environment.getExternalStorageDirectory(), folder_main);
if (!f.exists()) {
    f.mkdirs();
    this.showDialog("Done");
}
else{
    this.showDialog("Exist");
}

This code show Exist and Done correctly, but when I go to sd card with file explorer, I cannot see created folders. Why and how to make it work?

Check [this post](http://stackoverflow.com/questions/3300137/how-can-i-refresh-mediastore-on-android). — Lym Zoy, Mar 04 '17 at 10:47
`f.mkdirs(); this.showDialog("Done");`. Pretty bad code. mkdirs can fail and if so will return false. So adapt your code and your toasts. — greenapps, Mar 04 '17 at 10:53
You can try to offer your created directory as an `File` instance, and use the most-upvoted answer. — Lym Zoy, Mar 04 '17 at 10:56
@LymZoy for example i installed my phone with cable to my computer and i can not see that folder — Majid Abbasi, Mar 04 '17 at 10:57
`this.showDialog("Exist");`. Not very informative. Exists what? Inform the user and yourself with `this.showDialog("Exists: " + f.getAbsolutePath());`. — greenapps, Mar 04 '17 at 10:58

score 1 · Answer 1 · answered Mar 04 '17 at 11:04

I mean, try this(make sure f currently doesn't exist):

File f = new File(Environment.getExternalStorageDirectory(), folder_main);
if (!f.exists() && f.mkdirs()) {
    sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri.fromFile(f)));
    this.showDialog("Done");
}else{
    this.showDialog("Exist");
}

Android see created folders on file explorer

1 Answers1