A few things.
1 - For the target file, don't use "SDCARD" in your paths.
Environment.getExternalStorageDirectory already gives you the path to the
top-level directory ("root") of the memory card.
Android 2.2 uses a path that's different from earlier versions, and you can
rely on this function to do right thing.
2 - For the source file, use this:
http://developer.android.com/reference/android/content/Context.html#openFileInput(java.lang.String
)
or
http://developer.android.com/reference/android/content/Context.html#openFileOutput(java.lang.String,
int)
Do not try to build the full path yourself (as in,
"/data/data/<package_name>/files") - the path can be different depending on
the device and its Android version. The above functions already take care of
that.
You already have code to read your data files (to populate the list view),
just do it the same way.
-- Kostya
2011/4/4 Alaeddine Ghribi <alaeddineghr...@gmail.com>
> So i maked this:
> catch(FileNotFoundException ex){
> Toast.makeText(context, "File Not found", Toast.LENGTH_SHORT).show();
> String x=ex.getMessage();
> Log.d("Carburant", x);
> }
>
> Here is the message i get:
> 04-04 11:07:20.851: DEBUG/Carburant(377): /alaa.peugeot.settings.dat (No
> such file or directory)
>
> So as the log indicated, the compiler doesn't finds the file in the
> /data/data...
> I maked one other thing, in the copyfile function i maked this:
> copyfile(context,*"data/data/
> carburant.android.com/files/alaa.peugeot.settings.dat"*,sdCard.getAbsolutePath()
> + "/SDCARD/Carburant/storeddata.dat");
>
> The log message now indicates this:
> 04-04 11:11:32.771: DEBUG/Carburant(852):
> /mnt/sdcard/SDCARD/Carburant/storeddata.dat (Permission denied)
>
> Let's begin to correct the first message :\
> Every user will put its name and car mark, so this 2 variables are not
> constant!
> So, in the menu export code i maked this:
> case R.id.exporter:
> final SharedPreferences preferences = PreferenceManager
> .getDefaultSharedPreferences(context);
> String fileName = getResources().getString(R.string.fileName);
> fileDir = "" + preferences.getString("login", "") + "."+
> preferences.getString("marque", "") + ".";
> Import myImport = new Import(this,fileDir+fileName);
> //Import myImport(this, fileDir+fileName);
> myImport.transfer();
> return true;
>
> I think that the problem comes from the red line, it's a comment because i
> always have an error message on it, but i think that this line can make the
> problem solved, we have to import in the "import" function the filedir and
> filename, without this line, nothing imported => it can't find the file in
> the /data/data...
>
> So please what can i put to import the necessary variables to the import
> function(in the other class).
> Thank you.
>
>
>
> 2011/4/4 TreKing <treking...@gmail.com>
>
>> On Sun, Apr 3, 2011 at 9:11 PM, Alaeddine Ghribi <
>> alaeddineghr...@gmail.com> wrote:
>>
>>> So i put a breakpoint in the catch line and in the debugger i think that
>>> i have the right variables:
>>
>>
>> Put a break at the *start* of your code and *step through* line by line
>> until you hit the line that causes the exception.
>>
>> OR
>>
>> Print the message the exception gives you (ex.getMessage()) to find out
>> what file is giving the error.
>>
>>
>>
>> -------------------------------------------------------------------------------------------------
>> TreKing <http://sites.google.com/site/rezmobileapps/treking> - Chicago
>> transit tracking app for Android-powered devices
>>
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