yes, for returning values from second activity call setData(,,) from second
activity before finishing activity.
And in first activity instead of startActivity(..) call
startActivityForResult(..)
and override onActivityResult(...)
for Example:
In parent activity,
declare a variable for aaa child activity
static final int AAA_ACTIVITY_RETURN = 0;
static final int BBB_ACTIVITY_RETURN = 1; //another bbb child activity
for com.sample.bbb.class ( for Multiple activities )
Intent intent = new Intent(this,com.sample.aaa.class); //aaa is child
activity
intent.putExtra("ARG1","value1");
intent.putExtra("ARG2","value2");
startActivityForResult(intent, AAA_ACTIVITY_RETURN );
protected void onActivityResult(int requestCode, int resultCode, Intent
data)
{
super.onActivityResult(requestCode, resultCode, data);
if(requestCode == AAA_ACTIVITY_RETURN )
{
String sVal1 = data.getStringExtra( "Return1" );
String sVal2 = data.getStringExtra( "Return2" );
}
if(requestCode == BBB_ACTIVITY_RETURN)
{
// handle values from bbb child activity
}
}
In Child Activity
some_Activity_close_funnction()
{
Intent data = new Intent();
data.putExtra("Return1","Val1");
data.putExtra("Return2","val1");
setResult(RESULT_OK,data);
finish();
}
-pb
2009/8/5 Per Sandström <[email protected]>
>
> thanks man, that is an excellent way of explaining so even an android-
> beginner can understand. Is there a similar way of returning data to
> the first activity when the second activity has finished running,
> corresponding to javas "return value1;"?
>
> Regards
> Per Sandström
>
> On 4 Aug, 17:44, powerbyte <[email protected]> wrote:
> > Hello
> >
> > >>To summarize: Activities don't have constructors! How do I send data
> > >>to them from their parent activity???
> >
> > we can send data from parent activity to childs, using Intent
> >
> > for example:
> >
> > In parent activity,
> >
> > Intent intent = new Intent(this,com.sample.aaa.class); //aaa is
> > child activity
> > intent.putExtra("ARG1","value1");
> > intent.putExtra("ARG2","value2");
> > StartActivity(intent);
> >
> > In Child activity (aaa) use Bundle to get the data
> >
> > public void onCreate(Bundle som) {
> > super.onCreate(som);
> >
> > Intent intent = this.getIntent();
> > Bundle b = intent.getExtras();
> > String sVal1 = b.getString("ARG1");
> > String sVal2 = b.getString("ARG2");
> > ....
> > ...
> >
> > }
> >
> > -pb
> >
> > On Aug 4, 6:31 pm, Per Sandström <[email protected]> wrote:
> >
> > > but how do I create and pass this global object? I cant do it like I
> > > do in java or other programming languages where . AIDL is an
> > > alternative, but it still seems overkill for a small app.
> >
> > > regards
> > > Per Sandström
> >
> > > On Jul 22, 10:50 pm, niko20 <[email protected]> wrote:
> >
> > > > On Jul 22, 1:19 pm, Roman <[email protected]> wrote:
> >
> > > > > Android supports multiple IPC mechanisms.
> >
> > > > > You can use the Intent mechanism as well as the AIDL mechanism for
> > > > > doing this. The AIDL approach is more complex but offers you also
> more
> > > > > flexibility to pass objects.
> >
> > > > > Find information about this topic on
> >
> > > > >http://developer.android.com/guide/developing/tools/aidl.html
> >
> > > > > --
> > > > > Roman Baumgaertner
> > > > > Sr. SW Engineer-OSDC
> > > > > ·T· · ·Mobile· stick together
> > > > > The views, opinions and statements in this email are those of the
> > > > > author solely in their individual capacity, and do not necessarily
> > > > > represent those of T-Mobile USA, Inc.
> >
> > > > > On Jul 22, 6:49 am, PerSandström<[email protected]> wrote:
> >
> > > > > > So far I have been using SharedPreferences to share data between
> > > > > > activities. But I would very much like to find a better way. I
> would
> > > > > > simply like both Activity1 and Activity2 to share Object1.
> Activity1
> > > > > > will create Object1 and then start Activity2. What is the
> smartest way
> > > > > > to give Activity2 a pointer to Object1?
> >
> > > > > > To summarize: Activities don't have constructors! How do I send
> data
> > > > > > to them from their parent activity???
> >
> > > > > > Regards,
> > > > > > PerSandström
> >
> > > > Hi,
> >
> > > > If both activities are in the same application, then just use a
> global
> > > > object and pass that around (singleton or such). Not too tough.
> >
> > > > -niko- Hide quoted text -
> >
> > > - Show quoted text -
> >
>
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