Bitmap大小改变

sounds = Bitmap.createScaledBitmap(sounds,width/2,width/10,true);

public Bitmap getBitmap(int BitmapId){    Bitmap bitmap = BitmapFactory.decodeResource(getResources(),BitmapId);    return bitmap;}

sw = ((float) scrWidth) / backBitmap.getWidth();sh = ((float) scrHeight) / backBitmap.getHeight();