This is wrong in a number of ways:
getLaunchIntentForPackage( "com.android.email" );
First, "com.android.email" is not an API. That is the internal identifier
for the current e-mail application that is part of AOSP; there is *no*
guarantee that such a thing will ever exist on the device.
Second, more specific to your issue here, getLaunchIntentForPackage()
returns a *launch* intent, for use in semantics like an app launcher. What
you are asking for is not an app launcher; you want to run flow as part of
your own task, not launch something different. In particular, what this
Intent will do is bring the current e-mail app to the foreground *in
whatever state it was last in*. The user may have been in the middle of
composing a message, viewing something, etc. It isn't saying to bring them
to the list of e-mail messages for them to import something.
One other thing, when you say startActivityForResult() is not working, this
is not because of an explicit vs. implicit Intent; this is because part of
what getLaunchIntentForPackage() does is set FLAG_ACTIVITY_NEW_TASK, which
says to launch the Intent as a separate task from yours (bringing an
existing task to the foreground etc), which is central to the semantics of
this being for app launchers not in-task UI flow.
On Thu, Aug 23, 2012 at 7:16 AM, Mark Jawdoszak <evilja...@gmail.com> wrote:
> I have an intent that starts the default Android mail client:
>
> Intent emailIntent = this.getPackageManager().getLaunchIntentForPackage(
> "com.android.email" );
> this.startActivity( emailIntent );
>
> Very simple stuff, and it fires off the Email client, from an "Import from
> Email" button in my app.
>
> My application is also registered with an <intent-filter> to open PDF
> files.
> So, if I use the above Intent to open up the Email client, find an email
> with a PDF attachment, download it, launch it, select my application from
> the chooser... then everything loads great.
>
> Now if I hit my "Import from Email" button again, the intent runs, but the
> Email client is never brought into the foreground.
>
> Am I missing something when using startActivity() to (re)launch the
> correct app?
> I have tried checking if the intent is OK by following this
> http://developer.android.com/training/basics/intents/sending.html#Verifybut
> it always returns true (and that makes sense, as it can find the
> Application, but it's just not bringing it to the foreground).
>
> I have also tried using startActivityForResult(), but as explained in the
> Android docs, this fires off a "cancel" immediately, because the Activity
> is not Explicit, but Implicit (thought I'd try it, just in case).
>
> I feel like I'm missing something, a step, a call to something... or have
> I hit upon some strange loop that works in one case, but cannot keep
> looping? Any help/pointers would be greatly appreciated!
>
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--
Dianne Hackborn
Android framework engineer
hack...@android.com
Note: please don't send private questions to me, as I don't have time to
provide private support, and so won't reply to such e-mails. All such
questions should be posted on public forums, where I and others can see and
answer them.
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