android live wallpaper rescaling

Question

I am learning how to make live wallpapers, but I have a dilemma I\'m sure all who start off have as well.

There is so many resolution screen sizes, how can I just m

Answer 1

I've used this code snippet to scale one image to fit on different screen sizes.

Bitmap image1, pic1;
image1 = BitmapFactory.decodeResource(getResources(), R.drawable.image1);
float xScale = (float) canvas.getWidth() / image1.getWidth();
                float yScale = (float) canvas.getHeight() / image1.getHeight();
                float scale = Math.max(xScale, yScale); //selects the larger size to grow the images by

                //scale = (float) (scale*1.1); //this allows for ensuring the image covers the whole screen.

                scaledWidth = scale * image1.getWidth();
                scaledHeight = scale * image1.getHeight();

                    pic1 = Bitmap.createScaledBitmap(image1, (int)scaledWidth, (int)scaledHeight, true);

Make sure that the edges don't contain vital information as it will be scaled out of the picture on some screen ratios.