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>

Answer 1

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

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

Answer 2

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