Sam,
You're absolutely right. I overlooked the fact that all arrays
are Serializable. Since the elements are all Integer and String
Objects, which are also Serializable, I don't need to do any
conversion. I can just pass the array itself.
>From the Java Language Spec, 3rd Edition, section 10.7:
Every array implements the interfaces Cloneable and
java.io.Serializable.
Thanks.
Herb
On Aug 5, 3:03 pm, samspade79 <[email protected]> wrote:
> Arrays are serializable in Java so why not just store the array since
> you said its always going to be String or ints.
>
> Object[] foo = new Object[10];
> foo[0] = new Integer(7);
> foo[6] = "Hello";
>
> Intent intent = new Intent(this, HomeActivity.class);
> intent.putExtra("foo", foo);
>
> On Aug 5, 3:53 pm, Herb Jellinek <[email protected]> wrote:
>
> > That's an old trick that can introduce big problems. You must ensure
> > that the delimiter doesn't appear in any of the items, and if that's
> > not possible, you (1) can't use StringTokenizer to parse the string,
> > and (2) have to invent some kind of quotation mechanism to protect the
> > delimiter characters that appear in the data, and parse it "by hand."
>
> > The approach I'm using is simple. It takes advantage of the fact that
> > ArrayList is Serializable:
>
> > ArrayList<String> strings = new ArrayList<String>(foo.length);
> > for (Object elt : foo) {
> > strings.add(elt.toString());
> > }
>
> > Intent broadcastIntent = new Intent(MY_INTENT);
> > broadcastIntent.putExtra(MY_EXTRA, strings);
>
> > Though still not quite satisfactory, because I don't like having to
> > turn the Integer elements into Strings.
>
> > Herb
>
> > On Aug 3, 9:42 pm, Sarwar Erfan <[email protected]> wrote:
>
> > > Hi,
> > > You can try concatenating the foo's into a single string delimited by
> > > some character that will NOT appear in any of the strings. For
> > > example, I am assuming pipe character (|) will never appear in any of
> > > the strings you want to pass.
> > > Then, create a string like:
>
> > > "7|Hello|This is another string|1123|"
> > > Put this string as extra. In the receiving part, tokenize the string
> > > by |, then you get all the elements.
>
> > > Regards
> > > Sarwar Erfan
>
> > > On Aug 4, 2:02 am, HerbJellinek<[email protected]> wrote:
>
> > > > I have a program that sends a broadcast Intent that needs an "extra"
> > > > value. The value is declared as being of type Object[], though I know
> > > > that the elements are always of type Integer or String. That's part
> > > > of an API not under my control.
>
> > > > What's the most concise and/or efficient way to do the equivalent of
> > > > the putExtra call below? I am willing to convert foo to another data
> > > > type for the putExrta and convert back in the receiver(s).
>
> > > > Object[] foo = new Object[FOO_SIZE];
> > > > ...
> > > > foo[0] = new Integer(7);
> > > > ...
> > > > foo[6] = "Hello";
>
> > > > Intent broadcastIntent = new Intent(MY_INTENT);
> > > > // assert: all elements of foo are Integer or String
> > > > broadcastIntent.putExtra(MY_EXTRA, foo); // XXX not correct
>
> > > > Thanks.
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