Thank you all for your replies. It seems the following declaration in the manifest solves the problem:
<supports-screens android:anyDensity="false"/> On Monday, January 28, 2013 5:59:29 PM UTC+2, Piren wrote: > > you can also set the density on the canvas > > see this: > > http://stackoverflow.com/questions/5014882/drawing-a-bitmap-on-a-canvas-got-scaled > > On Monday, January 28, 2013 5:18:21 PM UTC+2, cosminr wrote: >> >> Unfortunately, the createBitmap() method which accepts DisplayMetrics was >> added in API level 17 and I need to support a much lower API level. I tried >> to set the density by passing the DisplayMetrics.densityDpi to >> Bitmap.setDensity(int) and the problem still persists. >> >> On Monday, January 28, 2013 4:38:16 PM UTC+2, Piren wrote: >>> >>> I think its actually the Bitmap's fault... Bitmap.CreateBitmap can also >>> get DisplayMatrics as a variable, try that with your device's >>> DisplayMatrics (I'm guessing it's High, while the default is something >>> lower, thus causing the fuzziness) >>> >>> On Monday, January 28, 2013 12:48:21 PM UTC+2, cosminr wrote: >>>> >>>> Hi, I am writing a custom view and for optimization purposes, I draw >>>> some static part of the view in a Bitmap. Unfortunately, the quality of >>>> the >>>> rendering when using an offscreen bitmap is noticeably less compared to >>>> rendering into the view's canvas bitmap. Here are two screenshots showing >>>> the difference >>>> >>>> Rendering into view's Canvas: >>>> >>>> >>>> <https://lh5.googleusercontent.com/-wSjtLmhUgz8/UQZV96LTo6I/AAAAAAAAAEM/r9saff_8dlM/s1600/01_view_canvas.png> >>>> Rendering into a Bitmap Canvas >>>> >>>> >>>> <https://lh3.googleusercontent.com/-jVuFcXhAf7g/UQZWK7NBNfI/AAAAAAAAAEU/0AfCGfQMudU/s1600/02_bitmap_canvas.png> >>>> The difference is most noticeable at the horizontal black line. >>>> The anti-aliasing algorithm seems to affect more pixels (is wider). >>>> >>>> The drawing code is the same in both cases, and the offscreen canvas is >>>> created like this >>>> >>>> final Bitmap tempBitmap = Bitmap.createBitmap(getWidth(), >>>> getHeight(), Bitmap.Config.ARGB_8888); >>>> final Canvas tempCanvas = new Canvas(tempBitmap); >>>> >>>> Any ideas on how to get the same rendering in the offscreen canvas as >>>> in the view's ? >>>> >>>> Thank you >>>> >>> -- -- 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 unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
