java.io.fileNotFoundException(Permission denied)

Question

I have the next method :

public void saveOnSDCard() {
    File path = new File("storage/sdcard1");

    File dir = new File(path + "");
    if (!dir.exists()) {
        dir.mkdirs();
    }

    File file = new File(dir, "test.png");

    OutputStream os;
    try {
        os = new FileOutputStream(file);
        image.compress(Bitmap.CompressFormat.PNG, 100, os);
        os.flush();
        os.close();
    } catch (IOException ioe) {
        showToast("Ошибка " + ioe.toString());
    }
}

but when i try to call it, it gives me a java.io.fileNotFoundException(Permission denied). I have the next permission in my Manifest file:

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

So can someone tell me what's wrong ?

P.S image - Bitmap object, i declared it in another method.

What is the API version or android os version u are trying this — Psypher, Jul 11 '18 at 17:20
@Psypher i tried this code on API 19 and API 25. Both doesn't work — Максим Коваль, Jul 11 '18 at 17:26
can you debug the method and get the path of the "path", "dir" and "file" objects? — Giulio Pettenuzzo, Jul 11 '18 at 22:46
@ Максим Коваль post your error log so that it will be easy to detect issue and if you are trying to run this code sdk >=23 then you have to add runtime permisions to access external storage — Bhagyashri, Jul 12 '18 at 07:02
the code not able to create to directory and you have not given the folder name also.so you are getting the `java.io.fileNotFoundException(Permission denied)` — Bhagyashri, Jul 12 '18 at 07:06
If you want to use external storage means your removable sdcard then diff devices shows different sdcard path such as `/mnt/m_external_sd/` or `/storage/sdcard1/` you can get your attached device sdcard path in android studio IDE **View > Tool Windows > Device File Explorer** so instead of using sdcard use internal storage simply by using `Environment.getExternalStorageDirectory()` for reference you can use this link https://stackoverflow.com/questions/6049114/environment-getexternalstoragedirectory-does-not-return-the-path-to-the-removabl/6049446#6049446 — Bhagyashri, Jul 12 '18 at 08:26
@userI When i use Environment.getExternalStorageDirectory(), i get the internal storage path — Максим Коваль, Jul 12 '18 at 09:50
try to use "/mnt/external_sd/" but it will differ from device to device — Bhagyashri, Jul 12 '18 at 09:52
what path you get from **View > Tool Windows > Device File Explorer** — Bhagyashri, Jul 12 '18 at 09:56
File path = new File("storage/sdcard1"); if(path.exists()){ Log.i("path is",path)} else {System.out.println("path not found");} try this code and tell me the output — Bhagyashri, Jul 12 '18 at 09:59
from sdcard path you are having readonly permission thats why you are unable to write to sdcard — Bhagyashri, Jul 12 '18 at 11:27
@userI How can i get the permission to write to sdcard? Is it possible? — Максим Коваль, Jul 12 '18 at 11:29
from version kitkat onwards you have a permission to only read from sdcard.But is there any particular reason to use sdcard only instead of internal storage? — Bhagyashri, Jul 12 '18 at 11:39
@userI So as i understood if i have an android version 4.4+, i can't write to sdcard? — Максим Коваль, Jul 12 '18 at 11:41
But if you make your sdcard as primary memory i.e format as internal storage then you can able to write to that storage — Bhagyashri, Jul 12 '18 at 11:43
@userI Yes, u'r right, i tried it. Thanks a lot for help and for information. — Максим Коваль, Jul 12 '18 at 11:55

score 0 · Answer 1 · answered Jul 11 '18 at 22:54

0

try if one of the following solutions works:

replace "storage/sdcard1" with"storage/sdcard1/"
replace path + "" with path + "/"
replace "test.png" with "/test.png"

I think it's just missing a slash in one of those three lines

answered Jul 11 '18 at 22:54

Giulio Pettenuzzo

786
1
5
20

Unfortunately, it doesn't help me – Максим Коваль Jul 12 '18 at 10:00

score 0 · Answer 2 · answered Jul 12 '18 at 11:58

0

Guy in comment told me that if you have an android 4.4+ you can write to sdcard only when you make your sdcard as primary memory or sometimes when ur phone is rooted. I tried it and it really works.

answered Jul 12 '18 at 11:58

Максим Коваль

1
4

java.io.fileNotFoundException(Permission denied)

2 Answers2