Perfect Working Code with layoutAttributesForElementsInRect: For Printing text in Collection View cell & Cells Size as Per Given String Text ...

Perfect Working Code with layoutAttributesForElementsInRect: For Printing text in Collection View cell & Cells Size as Per Given String Text ...

Storyboard:-

  

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController<UICollectionViewDataSource, UICollectionViewDelegate>

@property (strong, nonatomic) IBOutlet UICollectionView *collectionView;

@property (strong, nonatomic) NSArray *languagesArray;

@end

#import "ViewController.h"

#import "CollectionViewCellCustom.h"

#import "NDCollectionViewFlowLayout.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

    

    _languagesArray = [[NSArray alloc]initWithObjects:@"C",@"Casdasd++",@"Java",@"Oasdasdracle",@".Net sdfgfdg",@"hadoopasdasdasd",@"Objective-C",@"Csadadadadsasdad",@"C++",@"Java",@"Oracle",@".Net sdfgfdg",@"hadoop",@"Objective-C",@"MS Office hdfggg",@"Software Developer",@"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nec lapathi suavitatem acupenseri Galloni Laelius anteponebat, sed suavitatem ipsam neglegebat; Summus dolor plures dies manere non potest? Tu vero, inquam, ducas licet, si sequetur; Illa videamus, quae a te de amicitia dicta sunt. Piso, familiaris noster, et alia multa et hoc loco Stoicos irridebat: Quid enim? At iam decimum annum in iacet.",@"hjeklasdaasssDDD",@"SHFJKSDF eghrtthyther",@"FGDSGSGHSGDSTERT",@"FGHDFHFHG ryhtu ",@"FGHDFHFHG1",@"DGRTHRTHRTJTYJTJT", @"FGHDFHFHG2",@"C",@"Casdasd++",@"Java",@"Oasdasdracle etjtyj",@".Net sdfgfdg",@"hadoopasdasdasd",@"Objective-C",@"Csadadadadsasdad",@"C++",@"Java",@"Oracle",@".Net sdfgfdg",@"hadoop",@"Objective-C",@"MS Office hdfggg",@"Software Developer",@"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nec lapathi suavitatem acupenseri Galloni Laelius anteponebat, sed suavitatem ipsam neglegebat; Summus dolor plures dies manere non potest? Tu vero, inquam, ducas licet, si sequetur; Illa videamus, quae a te de amicitia dicta sunt. Piso, familiaris noster, et alia multa et hoc loco Stoicos irridebat: Quid enim? At iam decimum annum in iacet.",@"hadoopasdasdasd",@"Objective-C",@"Csadadadadsasdad",@"C++",@"Java",@"Oracle",@".Net sdfgfdg",@"hadoop",@"Objective-C",@"MS Office hdfggg",@"Software Developer", nil];

    

    [_collectionView setDataSource:self];

    [_collectionView setDelegate:self];

    

    NDCollectionViewFlowLayout *objNDCollectionViewFlowLayout = [[NDCollectionViewFlowLayout alloc] init];

    [objNDCollectionViewFlowLayout layoutAttributesForElementsInRect:_collectionView.frame];

    

    [_collectionView setCollectionViewLayout:objNDCollectionViewFlowLayout];

    

}

- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {

    

    return _languagesArray.count;

}

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {

    

    CollectionViewCellCustom *cell = [_collectionView dequeueReusableCellWithReuseIdentifier:@"CollectionViewCellCustom" forIndexPath:indexPath];

    

    cell.lblData.text = [_languagesArray objectAtIndex:indexPath.row];

    cell.lblData.textAlignment = 1;

  

    return cell;

}

- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath

{

    

   NSString *text = [_languagesArray objectAtIndex:indexPath.row];

   CGRect r = [text boundingRectWithSize:CGSizeMake(collectionView.frame.size.width-55, 0)

                                 options:NSStringDrawingUsesLineFragmentOrigin

                              attributes:@{NSFontAttributeName:[UIFont fontWithName:@"Helvetica-Bold" size:16.0]}

                                 context:nil];

   NSLog(@"%f     %f",r.size.width, r.size.height);

   

   r.size.width = r.size.width+35;

   r.size.height = r.size.height+20;

    

   return r.size;

}

@end

#import <UIKit/UIKit.h>

@interface NDCollectionViewFlowLayout : UICollectionViewFlowLayout

- (NSArray *)layoutAttributesForElementsInRect:(CGRect)rect;

@end

#import "NDCollectionViewFlowLayout.h"

@implementation NDCollectionViewFlowLayout

- (NSArray *)layoutAttributesForElementsInRect:(CGRect)rect

{

    NSArray *attributes = [super  layoutAttributesForElementsInRect:rect];

    NSArray * answer = [[NSArray alloc] initWithArray:attributes copyItems:YES];

    

    if ([attributes count])

    {

    

    if ([attributes objectAtIndex:0]) {

        

        UICollectionViewLayoutAttributes *startingLayoutAttributes = answer[0];

        CGRect frame = startingLayoutAttributes.frame;

        frame.origin.x = 5;

        if (frame.origin.y == 0) {

            frame.origin.y = 5;

        }

        startingLayoutAttributes.frame = frame;

        

    }

 }

    

    

    

    for(int i = 1; i < [answer count]; ++i)

    {

        UICollectionViewLayoutAttributes *currentLayoutAttributes = answer[i];

        UICollectionViewLayoutAttributes *prevLayoutAttributes = answer[i - 1];

        NSInteger maximumSpacing = 5;

        

        NSInteger origin = CGRectGetMaxX(prevLayoutAttributes.frame);

        

        if(origin + maximumSpacing + currentLayoutAttributes.frame.size.width < self.collectionViewContentSize.width)

        {

            CGRect frame = currentLayoutAttributes.frame;

            frame.origin.x = origin + maximumSpacing;

            if (frame.origin.y == 0) {

                frame.origin.y = 5;

            }

            currentLayoutAttributes.frame = frame;

        }

        else

        {

            CGRect frame = currentLayoutAttributes.frame;

            frame.origin.x = 5;

            if (frame.origin.y == 0) {

                frame.origin.y = 5;

            }

            currentLayoutAttributes.frame = frame;

        }

    }

    return answer;

}

@end

#import <UIKit/UIKit.h>

@interface CollectionViewCellCustom : UICollectionViewCell

@property (weak, nonatomic) IBOutlet UILabel *lblData;

@end

#import "CollectionViewCellCustom.h"

@implementation CollectionViewCellCustom

@end

Result:-