Does anyone else have any ideas on this? I would really like to be able to know the size of that the bitmap from the imageView is being scaled to so that I can optimize some code similarly to what Romain mentioned in the article I referenced in the OP.
Currently I read the minWidth and minHeight values from an AppWidgetProviderInfo object, but I know that these are just the values declared in the xml for the AppWIdgetProvider. So is there anyway to access a cached bitmap object after the scale has taken place or a way to listen for the scaling event that happens to an ImageView in an AppWidget? Any help would be greatly appreciated. ---Sean Catlin On May 29, 1:06 am, Romain Guy <[email protected]> wrote: > Hi, > > A way to do this is to use the onSizeChanged() method. In that method, > you know what the exact size of your view is. From there you can > easily call Bitmap.createScaledBitmap() to scale your bitmap down. > > > > On Thu, May 28, 2009 at 11:00 PM, snctln <[email protected]> wrote: > > > So I was just reading a great overview of some of the IO happenings > > written by Mark Murphy and posted over athttp://androidguys.com/?p=5342 > > and was very intrigued by something... here is the relevant text > > > "Next, Romain moved into images, particularly backgrounds for widgets. > > Backgrounds will always be fitted to the widget, and so Android may > > have to scale your bitmap to fit the widget – however, scaling at > > runtime is expensive. It is better, where possible to pre-scale the > > image and use the scaled one in your layouts, rather than having > > Android scale it on the fly. You can do this in Java code, via > > Bitmap#createScaledBitmap(), and setting the widget background from > > the cached scaled value." > > > From my understanding this is basically saying you can figure out the > > end size of your widget by reading values cached bitmap object, but I > > have no idea where to get this object. > > > When I started working with widgets I spent a lot of time trying to > > figure out the dimensions of the widget but figured it was a lost > > cause because my understanding was that RemoteView gets inflated after > > you ever get a chance to work with the specific dimensions... it seems > > this is still the case but a background bitmap is still cached > > somewhere? Where can I get a hold of that bitmap object? > > > I tried writing a proof of concept sample for myself, basically th > > widget layout was a frame layout with a imageView set to fill parent > > for both width and height... I created a bitmap of a small size > > (40x40) and set the widgets image view to this bitmap via > > removoteView.setImageViewBitmap(), i then went back to update the > > widget 1 minute later and my bitmap object had not been scaled at > > all... > > > Can anyone help me out with this? Romain maybe? > > > I have a few ideas that require this ability so any help is appreciated > > -- > Romain Guy > Android framework engineer > [email protected] > > Note: please don't send private questions to me, as I don't have time > to provide private support. 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 -~----------~----~----~----~------~----~------~--~---
