Update
I have a problem with gradient bitmaps on Android 2.3. I read this and decoded my bitmaps using the following options:
BitmapFactory.Options options = new BitmapFactory.Options(); options.inPreferredConfig = Bitmap.Config.ARGB_8888; options.inDither = true;
And on android 2.2 everything is great, but on android 2.3 gradient artifacts remain even after that decoding.I run the application from the article on 2.3 with my bitmaps and all the bad options : 16/32 bit, (not) anti-aliasing and RBG_565, ARGB_8888 and ARGB_4444 - the gradient has artifacts. Also I tried to decode without parameters. Everything is good. Sorry, the problem was
opts.inScaled=true; opts.inDensity=100; opts.inTargetDensity=800;
But now I need to get this code to work on Android 2.3, and it still produces a bad gradient (everything is fine on Android 2.2):
ImageView imageView = (ImageView) tabView.findViewById(R.id.tabsImage); // decode bitmaps BitmapFactory.Options options = new BitmapFactory.Options(); options.inPreferredConfig = Bitmap.Config.ARGB_8888; options.inDither = true; Bitmap tabImageOn = BitmapFactory.decodeResource(mainActivity.getResources(), tabImageResourceOnId, options); Bitmap tabImageOff = BitmapFactory.decodeResource(mainActivity.getResources(), tabImageResourceOffId, options); // create new selector StateListDrawable tabImage = new StateListDrawable(); tabImage.addState(new int[] { android.R.attr.state_selected }, new BitmapDrawable(mainActivity.getResources(), tabImageOn)); tabImage.addState(new int[] {}, new BitmapDrawable(mainActivity.getResources(), tabImageOff)); tabImage.setDither(true); // set selector to tab imageView.setImageDrawable(tabImage);
I tried to set window pixel format in
onCreate / before / after that method next way:
WindowManager.LayoutParams lp = new WindowManager.LayoutParams(); lp.copyFrom(getWindow().getAttributes()); lp.format = PixelFormat.RGBA_8888; getWindow().setAttributes(lp);
But nothing has changed (it’s gingerbread, it uses a 32-bit window format).
Why is this behavior happening and how can I solve my problem?
Thanks. Good afternoon!