iOS - Reuseable UIView Subclass - ios

Question

I am trying to build a few different UIView subclasses to display information to my app users.
One problem I am having is being able to call the view more than once.
Here is the testing call:
if(rewardsView==nil){
rewardsView = [[RewardsView alloc] init];
[rewardsView showRewardType:RewardsAttack withXP:100 withZBucks:10 isCritical:NO];
}else{
[rewardsView showRewardType:RewardsAttack withXP:200 withZBucks:20 isCritical:NO];
}
Here is the Code to initialize and display:
- (id)init
{
self = [super init];
if (self) {
// Initialization code
self.frame = CGRectMake(0, 0, DEVICE_WIDTH, DEVICE_HEIGHT);
//Z-Bucks
zBucksIcon = [UIImage imageNamed:#"rewards-z-bucks"];
zBucksView = [[UIImageView alloc] initWithFrame:CGRectMake(DEVICE_WIDTH/4-zBucksIcon.size.width/2, DEVICE_HEIGHT/2-zBucksIcon.size.height/2-12, zBucksIcon.size.width, zBucksIcon.size.height+25)];
[zBucksView setImage:zBucksIcon];
zBucksView.alpha = 0;
zBucksLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, zBucksIcon.size.height, zBucksIcon.size.width,25)];
zBucksLabel.backgroundColor = [UIColor clearColor];
zBucksLabel.textAlignment = NSTextAlignmentCenter;
zBucksLabel.font = [UIFont fontWithName:#"Open Sans Condensed" size:24];
zBucksLabel.textColor = [UIColor whiteColor];
zBucksLabel.shadowColor = [UIColor blackColor];
zBucksLabel.shadowOffset = CGSizeMake(1, 1);
[zBucksView addSubview:zBucksLabel];
//XP
xpIcon = [UIImage imageNamed:#"rewards-xp"];
xpView = [[UIImageView alloc] initWithFrame:CGRectMake(DEVICE_WIDTH/4*3-xpIcon.size.width/2, DEVICE_HEIGHT/2-xpIcon.size.height/2-12, xpIcon.size.width, xpIcon.size.height+25)];
[xpView setImage:xpIcon];
xpLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, xpIcon.size.height, xpIcon.size.width,25)];
xpLabel.backgroundColor = [UIColor clearColor];
xpLabel.textAlignment = NSTextAlignmentCenter;
xpLabel.font = [UIFont fontWithName:#"Open Sans Condensed" size:24];
xpLabel.textColor = [UIColor blackColor];
xpLabel.shadowColor = [UIColor whiteColor];
xpLabel.shadowOffset = CGSizeMake(1, 1);
[xpView addSubview:xpLabel];
xpView.alpha = 0;
[self addSubview:zBucksView];
[self addSubview:xpView];
}
return self;
}
-(void)showRewardType:(RewardsType)type withXP:(int)xp withZBucks:(int)zBucks isCritical:(BOOL)critical{
//Set Values
zBucksLabel.text = [NSString stringWithFormat:#"+%i",zBucks];
xpLabel.text = [NSString stringWithFormat:#"+%i",xp];
if(type==RewardsAttack){
}
if(type==RewardsHeal){
}
if(type==RewardsDaily){
}
UIWindow *window = [appDelegate window];
[window addSubview:self];
[self animateRewards];
}
Here is the code that dismisses (after some animation functions are called, not shown here):
-(void)dismissRewards{
[self removeFromSuperview];
//Reset Views
zBucksView.alpha = 0;
xpView.alpha = 0;
[zBucksView setFrame:CGRectMake(DEVICE_WIDTH/4-zBucksIcon.size.width/2, DEVICE_HEIGHT/2-zBucksIcon.size.height/2-12, zBucksIcon.size.width, zBucksIcon.size.height+25)];
[xpView setFrame:CGRectMake(DEVICE_WIDTH/4*3-xpIcon.size.width/2, DEVICE_HEIGHT/2-xpIcon.size.height/2-12, xpIcon.size.width, xpIcon.size.height+25)];
}