I think Romain's solution is the way to go. In every Activity, you
have to check if it's the first time you're there, or maybe you've
been restarted. In the apidemo examples you see that they test if the
input Bundle is null. Depending on that, they start anew or use data
from the Bundle to resume the activity.
On Nov 9, 9:04 pm, "Jose Luis Huertas Fernández"
<[EMAIL PROTECTED]> wrote:
> That does the trick also!
>
> Maybe it is a peculiar flow, but I don't find a better way to do it :(
>
> The activity A needs the result from B before doing anything. I could launch
> B first and from there launch A passing the results, but B is an activity
> that can be invoked from multiple places and if I include the "where to go
> next" logic into it then it would be very difficult to reuse... don't you
> think?
>
> Thanks ;)
>
> Jose Luis.
>
> On Sun, Nov 9, 2008 at 8:47 PM, Romain Guy <[EMAIL PROTECTED]> wrote:
>
> > You can do something very simple: when your Activity is killed to be
> > restarted, you will get a non-null Bundle instance in onCreate().
> > Start B only when the Bundle is null.
>
> > (I also find it weird that you start a sub-activity from onCreate(),
> > it is a rather peculiar flow.)
>
> > On Sun, Nov 9, 2008 at 11:36 AM, qvark
> > <[EMAIL PROTECTED]> wrote:
>
> > > Hi,
>
> > > I have an activity A that the first thing it does is launching a
> > > subactivity B to get a result. So, in the onCreate() method of A, I
> > > have something like this:
>
> > > Intent intentB= new Intent(this, B.class);
> > > startActivityForResult(intentB, B_RC);
>
> > > This usually works fine, but if I change the orientation when I'm
> > > inside activity B, then when I close it activity A is recreated, so B
> > > is launched again.
>
> > > I tried modifying the invocation to B testing if a result has not been
> > > returned previously:
>
> > > if (!resultFromB) {
> > > Intent intentB= new Intent(this, B.class);
> > > startActivityForResult(intentB, B_RC);
> > > }
>
> > > protected void onActivityResult(int requestCode, int resultCode,
> > > Intent data) {
> > > if (requestCode == B_RC)
> > > resultFromB = true;
> > > }
>
> > > But it doesn't work because the activity A is created again BEFORE the
> > > onActivityResult method is called.
>
> > > I have seen something similar in the API demos (RedirectMain.java and
> > > RedirectGetter.java) and they solve it passing the result with a
> > > SharedPreferences object, instead of using the standard mechanisms.
> > > This seems to avoid the problem but I don't like it very much....
>
> > > Any of you have found a better solution?
>
> > > Thanks,
>
> > > Jose Luis.
>
> > --
> > Romain Guy
> >www.curious-creature.org
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