getBackGround method
Implementation
List<String> getBackGround(int length) {
if (length <= backgroundImages.length) {
return backgroundImages.sublist(0, length);
} else {
List<String> newList = [];
for (int i = 0; i < backgroundImages.length; i++) {
newList.add(backgroundImages[i]);
if (i == backgroundImages.length - 1) {
i = 0;
}
if (newList.length == length) {
break;
}
}
return newList;
}
}