Image width and height

codenameone.java

//WIDTH OF THE DEVICE ====> Display.getInstance().getDisplayWidth();
//HEIGHT OF THE DEVICE ====> Display.getInstance().getDisplayHeight();


//WIDTH OF THE IMAGE ====> IMAGE.getWidth();
//HEIGHT OF THE IMAGE ====> IMAGE.getHeight();



  img = theme.getImage(`nameOfTheImage.png`);
  
int size = Math.min(Display.getInstance().getDisplayWidth(), Display.getInstance().getDisplayHeight());
        if(img.getHeight() < size) {
            img = img.scaledHeight(size);
}

// half of the display
    if(img.getHeight() > Display.getInstance().getDisplayHeight() / 2) {
        img = img.scaledHeight(Display.getInstance().getDisplayHeight() / 2);
     }