Android Internal Object Storage

I am trying to save ArrayLists(ArrayOne, ArrayTwo, and ArrayThree) of EditText's to the internal storage. As commented, it clearly shows that it attempts the save, but I never get another TOAST after that. Any help as of why it doesn't show "Save completed" or any error is appreciated.

public void save(Context c)
{
    String fileName;
    Toast.makeText(this, "Attempting Save", Toast.LENGTH_SHORT).show();//THIS SHOWS
    if(semester.getText().toString().length() == 0)
    {
        Toast.makeText(c, "Please enter a filename", Toast.LENGTH_SHORT).show();
    }
    else
    {
        fileName = "test.dat";
        FileOutputStream fos = null;
        ObjectOutputStream oos = null;
        try 
        {
            fos = this.openFileOutput(fileName, Context.MODE_PRIVATE);
            oos = new ObjectOutputStream(fos);
            oos.writeObject(ArrayOne);
            oos.writeObject(ArrayTwo);
            oos.writeObject(ArrayThree);
            Toast.makeText(c, "Save Completed", Toast.LENGTH_SHORT).show(); //THIS NEVER SHOWS
        } 
        catch (F开发者_如何学JAVAileNotFoundException e) 
        {
            Toast.makeText(c, "Could not find " + fileName + " to save.", Toast.LENGTH_SHORT).show();
            e.printStackTrace();
        } 
        catch (IOException e)
        {
            e.printStackTrace();
        } 
        finally 
        {
            try 
            {
                if (oos != null)
                    oos.close();
                if (fos != null)
                    fos.close();
            } 
            catch (Exception e)
            { /* do nothing */ }
        }
    }
}

The problem is that the EditText class is not serializable

If you debug and put a break point at on the printStackTrace and examine the IOException it will tell you that

catch (IOException e
{
     e.printStackTrace();
} 

Classes have to use "implements Serializable" in order for them to be written out as objects, which EditText does not have.

You can not extend the class and add the serializable tag either because the underlying class will still throw the exception.

I suggest you either serialize the data via your own class or save whatever you are trying to do with some other method.

I think the error is beings swallowed in your first Try block because you're only catching FileNotFound and IOException - just for debugging purposes you could catch the generic Exception and printout the stacktrace.

If it also helps this is what I do:

java.io.File file = new java.io.File("/sdcard/mystorage/ArrayOne.bin");
ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(new FileOutputStream(file)));
out.writeObject(obj);
out.close();

Best

-serkan

If nothing shows after the "Attempting save" you´re getting some exception in this block

 catch (IOException e)
         {
             e.printStackTrace();
         } 

And you´re not viewing it in any Toast. Also you can be here in this way doing nothing with your exception:

 catch (Exception e)
        { /* do nothing */ }

Instead of toasting your messages.. try to use LogCat for debbugging, is easy to use and also you don't need to put toast code in your code. Tell me how is going.