I want to create images with sizes relevant to the size of the screen they are on. Basically I have a scaled bitmap 50w * 50h
. I want it to be 50w * 50h
on a small device, slightly larger on a larger device, etc... Is there anyway to make a scaled bitmap relevant to the screen size it's on. I have that of making a dimen.xml
file with different dp
values for different screen width's. But it seems so demanding. Is there any easier way to do it? I have done some research but found nothing, can anyone help?
May be this :
public class BitmapScaler {
// scale and keep aspect ratio
public static Bitmap scaleToFitWidth(Bitmap b, int width) {
float factor = width / (float) b.getWidth();
return Bitmap.createScaledBitmap(b, width, (int) (b.getHeight() * factor), true);
}
// scale and keep aspect ratio
public static Bitmap scaleToFitHeight(Bitmap b, int height) {
float factor = height / (float) b.getHeight();
return Bitmap.createScaledBitmap(b, (int) (b.getWidth() * factor), height, true);
}
// scale and keep aspect ratio
public static Bitmap scaleToFill(Bitmap b, int width, int height) {
float factorH = height / (float) b.getWidth();
float factorW = width / (float) b.getWidth();
float factorToUse = (factorH > factorW) ? factorW : factorH;
return Bitmap.createScaledBitmap(b, (int) (b.getWidth() * factorToUse),
(int) (b.getHeight() * factorToUse), true);
}
// scale and don't keep aspect ratio
public static Bitmap strechToFill(Bitmap b, int width, int height) {
float factorH = height / (float) b.getHeight();
float factorW = width / (float) b.getWidth();
return Bitmap.createScaledBitmap(b, (int) (b.getWidth() * factorW),
(int) (b.getHeight() * factorH), true);
}
}
or this will help you.
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