图片验证码问题,调用decodeXXX得到Bitmap后,在bitmap.setDensity(DisplayMetrics.DENSITY_HIGH);
BitmapFactory.Options options = new BitmapFactory.Options();
options.inPreferredConfig = Config.ARGB_8888;
options.inSampleSize = 1;
Bitmap bitmap = BitmapFactory.decodeByteArray(bytes, 0, bytes.length, options);
bitmap.setDensity(DisplayMetrics.DENSITY_HIGH);