back method
dynamic
back()
Implementation
dynamic back() {
var isAtFirstIndex = _currentIndex == 0;
if (isAtFirstIndex) {
return null;
} else {
return _scenes[_currentIndex - 1];
}
}
back method
dynamic back() {
var isAtFirstIndex = _currentIndex == 0;
if (isAtFirstIndex) {
return null;
} else {
return _scenes[_currentIndex - 1];
}
}