How do you get a View from the current window (Activity?) using this method in a worker thread (not GUI)? And, even if you did, there is still a window (of execution) between the time you get the view and the time the runnable runs. The Activity may have changed in that window of execution.
On Feb 11, 12:49 pm, Dianne Hackborn <[email protected]> wrote: > On Tue, Feb 9, 2010 at 9:39 AM, Frank Weiss <[email protected]> wrote: > > The conundrum on Android is that user code can't block in a UI thread and > > non-UI threads can't manipulate the UI. > > It is almost trivial to, from another thread, schedule a Runnable on the > window's thread to do work on it: > > void myThreadDoingStuff() { > // ... > final int viewVisibility = somethingWeComputed; > // > final View view = getSomeViewInWindow(); > view.getHandler().post(new Runnable() { > public void run() { > view.setVisibility(viewVisibility); > } > }); > // ... > > } > > -- > Dianne Hackborn > Android framework engineer > [email protected] > > 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. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
