How do you allocate the bitmap exactly? On Dec 9, 2012 7:38 PM, "GJTorikian" <[email protected]> wrote:
> Sure, but why do I need to do this in the first place? In native JNI code > I am modifying each pixel directly. Pre-ICS I did not need to "blank out" > the bitmap. > > On Sunday, December 9, 2012 3:15:05 PM UTC-8, Romain Guy (Google) wrote: >> >> Instead of writing a loop like this you can just call >> Bitmap.eraseColor(). It's much more efficient. >> >> >> On Sun, Dec 9, 2012 at 11:55 AM, GJTorikian <[email protected]> wrote: >> >>> All right, so after days I finally figured it out. >>> >>> After creating my bitmap, I need to set every pixel in Java: >>> >>> for (int x = 0; x < 254; x++) { >>> for (int y =0; y < 254; y++) { >>> bmp.setPixel(x, y, Color.argb(255, 0, 0, 0)); >>> } >>> } >>> >>> >>> The question is: WHY only for ICS? >>> >>> On Wednesday, December 5, 2012 4:07:38 PM UTC-8, GJTorikian wrote: >>>> >>>> Hi there— >>>> >>>> I'm making updates to a live wallpaper I've developed. The wallpaper is >>>> currently running correctly on a 2.2 device, but NOT on my 4.2 device. >>>> >>>> On the ICS device, it seems that only the last column is being >>>> correctly drawn. For example, in a coordinate system, if my phone is 420 x >>>> 720 (not sure of the exact dimensions), then only pixels (420, 0) through >>>> (420, 720) are being drawn. The rest is black / transparent. >>>> >>>> Here's the code I'm using: https://github.com/**gjto** >>>> rikian/Earthbound-Battle-**Backg**rounds/blob/master/src/**com/** >>>> miadzin/livewallpaper/**earthbou**nd/**EarthboundLiveWallpaper.**java#* >>>> *L243<https://github.com/gjtorikian/Earthbound-Battle-Backgrounds/blob/master/src/com/miadzin/livewallpaper/earthbound/EarthboundLiveWallpaper.java#L243> >>>> >>>> First, I draw a 256 x 256 bitmap. Then, I use a matrix to scale it. >>>> >>>> Again, this works fine on a non-ICS device. Another tricky aspect is >>>> that I'm using the JNI to do some of the bitmap math, but I still think the >>>> problem is in this canvas code somewhere. >>>> >>>> Thanks for any help! >>>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Android Developers" group. >>> To post to this group, send email to android-d...@**googlegroups.com >>> To unsubscribe from this group, send email to >>> android-developers+**[email protected] >>> For more options, visit this group at >>> http://groups.google.com/**group/android-developers?hl=en<http://groups.google.com/group/android-developers?hl=en> >> >> >> >> >> -- >> Romain Guy >> Android framework engineer >> [email protected] >> >> -- > 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 -- 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
