There's one issue I still haven't solved to my satisfaction. As the layouting of views isn't tied to the activity's lifecycle there's no way to predict when onMeasure, onLayout are called (from an Activities point of view). If the parameters are needed in the onMeasure, onLayout methods then setting them in setter methods might be too late. The only solution to that problem I found so far is to invalidate the view whenever one of the setters is called.
Anyone got a better idea? Cheers Emanuel Moecklin On Apr 6, 9:25 am, Dianne Hackborn <hack...@android.com> wrote: > The standard pattern in Android is for a view to have APIs for setting its > attributes, which the activity calls when it wants. This pattern occurs all > *over* the place -- see the innumerable sample code that does findViewById() > in Activity.onCreate() to retrieve and set up views. This is how you attach > callbacks, set adapters in list view, set text in text views, and on and on > and on. > > (And as has also been suggested to parse XML attributes for values to come > from the layout and/or theme.) > > It is a better pattern than what you are wanting to do because you can then > actual use the view in multiple activities. > > But, you know, if you *want* to do the approach you are taking, then have at > it. There is no need to argue with people recommending the normal approach. > It's your code. Write it how you want. I don't think you are going to get > people to recommend you do what you want, though. > > > > > > > > > > On Wed, Apr 6, 2011 at 2:59 AM, Mike Bear <android.xi...@gmail.com> wrote: > > In my scenario, MyView will be only used in MyActivity. > > In addition, it's also the simplest way. > > > Thanks for your help > > > On Wed, Apr 6, 2011 at 5:51 PM, Kostya Vasilyev <kmans...@gmail.com>wrote: > > >> Ah. > > >> Well, you could have a setSomething method in the view, and push the value > >> from the activity's onCreate - as already suggested by Kumar. > > >> If MyView is only intended to be used by MyActivity, then your original > >> code seems fine (getting the context, casting to MyActivity and getting the > >> value). It's not "pretty", and it's not "pure", but why mess with something > >> that works? > > >> -- Kostya > > >> 06.04.2011 13:47, Mike Bear пишет: > > >> The scenario is like the following: > > >>> 1. MyView is one of the component in MyActivity. > >>> 2. MyActivity is created from other activity, with an intent containing > >>> all the information for the activity, including the parameter for MyView. > >>> 3. We shall pass the parameter to the constructor of MyView, for the > >>> construction of it. > > >>> I thought of other ways, like use the shared preference, it seems also > >>> work. But not a good way. > > >> -- > >> Kostya Vasilyev --http://kmansoft.wordpress.com > > >> -- > >> You received this message because you are subscribed to the Google > >> Groups "Android Developers" group. > >> To post to this group, send email to android-developers@googlegroups.com > >> To unsubscribe from this group, send email to > >> android-developers+unsubscr...@googlegroups.com > >> For more options, visit this group at > >>http://groups.google.com/group/android-developers?hl=en > > > -- > > You received this message because you are subscribed to the Google > > Groups "Android Developers" group. > > To post to this group, send email to android-developers@googlegroups.com > > To unsubscribe from this group, send email to > > android-developers+unsubscr...@googlegroups.com > > For more options, visit this group at > >http://groups.google.com/group/android-developers?hl=en > > -- > 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. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
