Adding UIView to UICollectionviewcell - iphone

Question

I have a question about adding UIView in UIcollectionviewcell. I haveUIcollectionview and is the condition, if condition is true I need to add UIView to UIcollectionviewcell. If the condition is false don't add.
After updating UIcollectionview UIView is added to Cell for which conditions is true and some for which the condition is false. How to add a UIView to UIcollectionviewcell? one, two or three UIView can be added cell.
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
NSInteger dayStart = [self dayWeekStart:[self getCurentDate:indexPath.section]];
CalendarCollectionViewCell *cell=[collectionView dequeueReusableCellWithReuseIdentifier:#"cellIdentifier" forIndexPath:indexPath];
if (indexPath.item+1 < dayStart) {
CalendarEmptyCollectionViewCell *cell=[collectionView dequeueReusableCellWithReuseIdentifier:#"cellemptyIdentifier" forIndexPath:indexPath];
return cell;
} else {
CalendarCollectionViewCell *cell=[collectionView dequeueReusableCellWithReuseIdentifier:#"cellIdentifier" forIndexPath:indexPath];
cell.titleLabel.text = [NSString stringWithFormat:#"%i",indexPath.item-dayStart+2];
int todayDayRowInt = todayDayRow;
int dayPlusShift = todayDayRowInt + dayStart - 2;
cell.titleLabel.font = [UIFont fontWithName:#"HelveticaNeue-Light" size:15];
CALayer* layer = [cell layer];
[layer setCornerRadius:15];
dateFormatter.dateFormat = #"yyyy-MM-dd hh:mm:ss Z";
cell.titleLabel.textColor = [UIColor lightGrayColor];
dateFromString1 = [NSDate date];
dateFromString2 = [dateFormatter dateFromString:_dateFinish];
dateFromString3 = [dateFormatter dateFromString:_dateStart];
if ([self checkDateFromCalendar:indexPath.section row:indexPath.item + 3 - dayStart] == 1) {
AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
[arrColor removeAllObjects];
for (int i=0; i<appDelegate.selectPill.count; i++) {
Pill *arrPill = [appDelegate.selectPill objectAtIndex:i];
NSNumber *mDay = arrPill.manyday;
int mDayInt = [mDay integerValue]+1;
if ([[self sameDateByAddingMonths:[dateFormatter dateFromString:_dateStart] addMonths:indexPath.section addDay:indexPath.item + 3 - dayStart] compare:[self sameDateByAddingMonths:arrPill.start addMonths:0 addDay:mDayInt]] == NSOrderedAscending) {
NSDate *verifiableDate = [self sameDateByAddingMonths:[dateFormatter dateFromString:_dateStart] addMonths:indexPath.section addDay:indexPath.item];
NSDate *verifiableDate2 = [self sameDateByAddingMonths:[dateFormatter dateFromString:_dateStart] addMonths:indexPath.section addDay:indexPath.item+1];
NSTimeInterval diff = [verifiableDate timeIntervalSinceDate:arrPill.start];
NSTimeInterval diff2 = [verifiableDate2 timeIntervalSinceDate:arrPill.start];
yui = (diff2 - diff);
NSInteger sss = diff / yui;
if (diff >= 0) {
float fff = fmod (sss , ([arrPill.frequency doubleValue]+1));
if (fff == 0) {
NSArray *components = [arrPill.color componentsSeparatedByString:#","];
CGFloat r = [[components objectAtIndex:0] floatValue];
CGFloat g = [[components objectAtIndex:1] floatValue];
CGFloat b = [[components objectAtIndex:2] floatValue];
CGFloat a = [[components objectAtIndex:3] floatValue];
UIColor *color = [UIColor colorWithRed:r green:g blue:b alpha:a];
UIView *view = [[UIView alloc]initWithFrame:CGRectMake(0+(i*10), (i*10), 10, 10)];
view.backgroundColor = [UIColor color];
[cell.contentView addSubview:view];
}
}
}
}
cell.titleLabel.textColor = [UIColor darkGrayColor];
} else {
cell.titleLabel.textColor = [UIColor lightGrayColor];
}
if ([dateFromString1 compare:dateFromString2] != NSOrderedDescending && [dateFromString1 compare:dateFromString3] != NSOrderedAscending) {
if (indexPath.section == todayMonthSection && indexPath.item == dayPlusShift){
cell.backgroundColor = [UIColor colorWithRed:60.0/255.0 green:162.0/255.0 blue:161.0/255.0 alpha:1];
cell.titleLabel.textColor = [UIColor whiteColor];
cell.titleLabel.font = [UIFont fontWithName:#"HelveticaNeue-Light" size:15];
} else {
cell.backgroundColor = [UIColor whiteColor];
}
}
return cell;
}
return cell;
}

Answer 1

Add your view visually to your
StoryBoard or Xib file and make custom cell classes make a connections
Use below code snippet
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *cellIdentifier = #"Cell";
PhotosCollectionCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:cellIdentifier forIndexPath:indexPath];
UIView *anotherView = [[UIView alloc]initWithFrame:CGRectMake(0.0, 0.0, 20.0, 20.0)];
UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(0.0, 0.0, 50.0, 20.0)];
label.text = #"Hello";
[anotherView addSubview:label];
[cell.myView addSubview:anotherView];
if("Your condition is true")
{
cell.myView.hidden = YES;
}
else
{
cell.myView.hidden = YES;
}
return cell;
}

Answer 2

Use the cell.contentView to get access to the cell's UIView.
Example:
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{
static NSString *identifier = #"Cell";
UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:identifier forIndexPath:indexPath];
MyRootView *view = [[MyRootView alloc]initWithFrame:CGRectMake(0, 0, 100, 100) someBusinessLogicParam:1];
[cell.contentView addSubview:view];
return cell;
}
I think would help is you have a root view which takes in your business logic as parameters. The business parameters will determine which views to display during the root view's initWithFrame.
Modified Example of MyRootView:
- (id)initWithFrame:(CGRect)frame someBusinessLogicParam:(NSInteger)bp
{
self = [super initWithFrame:frame];
if (self) {
// Initialization code
self.backgroundColor = [UIColor whiteColor];
if (bp == 0) {
UIView *yourChild1 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 50, 50)];
[self addSubview:yourChild1];
} else if (bp == 1) {
UIView *yourChild2 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 50, 50)];
[self addSubview:yourChild2];
}else if (bp == 3) {
UIView *yourChild3 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 50, 50)];
[self addSubview:yourChild3];
UIView *yourChild4 = [[UIView alloc] initWithFrame:CGRectMake(50, 50, 50, 50)];
[self addSubview:yourChild4];
}
}
return self;
}
You can then use the cell.contentView to add in the MyRootView along with your logic to what gets displayed.