Permission denied when writing into sdCard

Question

I'm trying write a file into SDCard, but I am getting error in logcat:

01-24 09:03:33.647: W/System.err(3353): java.io.FileNotFoundException: /mnt/sdcard/fun/itisfun.txt: open failed: EACCES (Permission denied)
    01-24 08:24:28.007: W/System.err(3353): Caused by: libcore.io.ErrnoException: open failed: EACCES (Permission denied)
    01-24 09:03:33.756: W/System.err(3353):at libcore.io.Posix.open(Native Method)

And here my code to write into SDCard:

File root = null;     
try {  
    // check for SDcard   
    root = Environment.getExternalStorageDirectory();                   
    Log.i(TAG,"path.." +root.getAbsolutePath());  

    //check sdcard permission  
    if (root.canWrite()){  
        File fileDir = new File(root.getAbsolutePath()+"/fun/");  
        fileDir.mkdirs();  

        File file = new File(fileDir, "itisfun.txt");  
        FileWriter filewriter = new FileWriter(file);  
        BufferedWriter out = new BufferedWriter(filewriter);  
        out.write("I m enjoying......dude");  
        out.close();
    }
} catch(...) {
    ...
}

Manifest:

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

score 9 · Answer 1 · answered Jan 23 '13 at 09:11

9

For writing to the Sdcard you need to give the permission in your manifest file

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

answered Jan 23 '13 at 09:11

Ram kiran Pachigolla

20,897
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eish! my bad I also did that,and i'm getting error let me update my question – zaamm Jan 23 '13 at 09:13

score 4 · Answer 2 · answered Jan 23 '13 at 09:27

4

You need to make sure you have the permission @Ram mentions, and the SD Card is mounted. You can check if it is mounted by:-

if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState()))

You should handle an unmounted card gracefully, but a common gotcha is if your phone is plugged in via the USB cable you may have it mounted via your desktop OS, which means it's not mounted by Android.

Thanks,

Ryan

answered Jan 23 '13 at 09:27

Ryan

2,240
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17

I still have a same problem – zaamm Jan 23 '13 at 09:41
Well the original exception is FileNotFoundException, are you sure the file is there? Can you post the logs if they've changed? – Ryan Jan 23 '13 at 09:43

score 0 · Answer 3 · edited Jan 02 '14 at 09:08

Here's a bit of code I use,

public void yourMethod(){

File root = getDir(getApplicationContext());     
    try {  
        File fileDir = new File(root.getAbsolutePath()+"/fun/");  
        fileDir.mkdirs();  

        File file = new File(fileDir, "itisfun.txt");  
        FileWriter filewriter = new FileWriter(file);  
        BufferedWriter out = new BufferedWriter(filewriter);  
        out.write("I m enjoying......dude");  
        out.close();

    } catch(...) {
    ...
    }
}


public File getDir(Context context) {

        if (android.os.Environment.getExternalStorageState().equals(
                android.os.Environment.MEDIA_MOUNTED))
            cacheDir = new File(
                    android.os.Environment.getExternalStorageDirectory(),
                        DIRECTORY_NAME);
        else
            cacheDir = context.getCacheDir();
        return cacheDir;
    }

If there is no external storage, it basically uses the phones internal cache (not good for large files)

Read this

there you go i've edited it...but its really rpetty straighforward — Hades, Jan 23 '13 at 09:51

score 0 · Answer 4 · answered Jul 21 '14 at 06:23

0

If you're on 4.4, read here: http://www.androidcentral.com/kitkat-sdcard-changes Basically you can no longer read and write anywhere on the drive. You can only write to your private directory and directories you've become the owner of.

answered Jul 21 '14 at 06:23

Gabe Sechan

90,003
9
87
127

score -3 · Answer 5 · answered Jan 02 '14 at 14:45

Check that your directory fun and the file itisfun.txt exists on the SDcard, if you want to make them by program, you have to add the permission:
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
This permission allows the application to create file or directory, the permission:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> only allows the application to read and write the file that is already exist.
Make sure that your permission is outside of the <application> tag, usually before it.

Permission denied when writing into sdCard

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