//Basic idea is to transition to a particular state from current state whenever triggered
//and then calling the Enter method which loads the required view from a .xib file (from
//Views folder) into the superview. Just before the transition we call the Exit method of
//current state so that the previous view is removed from the superview.
void TransitionToState(States _currentState, Triggers _trigger)
{
currentState.Exit();
switch (_currentState)
{
case States.Idle:
if (_trigger == Triggers.Load)
{
currentState = new LoadingState();
}
break;
case States.Loading:
if (_trigger == Triggers.ShowContent)
{
currentState = new ContentState();
}
else if (_trigger == Triggers.ShowEmpty)
{
currentState = new EmptyState();
}
else if (_trigger == Triggers.ThrowError)
{
currentState = new ErrorState();
}
break;
}
}
public ViewStateMachine(States initialState)
{
if (initialState == States.Idle)
{
currentState = new IdleState();
}
}