ViewController.h
#import <UIKit/UIKit.h>
#import “VendorListParser.h”
#import “VendorListViewController.h”
@interface ViewController : UIViewController
– (IBAction)btn1:(id)sender;
@end
ViewController.m
#import “ViewController.h”
@interface ViewController ()
@end
@implementation ViewController
– (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
}
– (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
/*
#pragma mark – Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
– (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/
– (IBAction)btn1:(id)sender {
VendorListParser *aListParser = [[VendorListParser alloc] init];
[aListParser getVendorsList:^(NSMutableArray *vendorsList) {
VendorListViewController *vndrlst=[[VendorListViewController alloc]initWithNibName:@”VendorListViewController” bundle:nil];
vndrlst.vendorsList = vendorsList;
[self.navigationController pushViewController:vndrlst animated:YES];
} withFailureBlock:^(NSString *errorMessage) {
UIAlertController *anAlertController = [UIAlertController alertControllerWithTitle:@”” message:errorMessage preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction *anAction = [UIAlertAction actionWithTitle:@”OK” style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
}];
[anAlertController addAction:anAction];
[self presentViewController:anAlertController animated:YES completion:^{
}];
}];
}
@end
VendorListViewController.h
#import <UIKit/UIKit.h>
#import “Vendor.h”
@interface VendorListViewController : UIViewController<UICollectionViewDataSource,UICollectionViewDelegate>
{
NSMutableArray *_myCollectionArray;
}
@property (strong, nonatomic) IBOutlet UICollectionView *collectionView1;
@property (nonatomic, retain) NSMutableArray *vendorsList;
//@property (nonatomic, strong) NSArray *dataArray;
– (IBAction)clsbtnactn:(id)sender;
@end
VendorListViewController.m
#import “VendorListViewController.h”
#import “NibCell.h”
@interface VendorListViewController ()
@end
@implementation VendorListViewController
@synthesize collectionView1;
– (void)viewDidLoad {
[super viewDidLoad];
self.view.backgroundColor = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@”bg image”]];
collectionView1.backgroundColor = [UIColor colorWithWhite:0 alpha:0];
self.navigationController.navigationBarHidden=YES;
// NSMutableArray *firstSection = [[NSMutableArray alloc] init]; NSMutableArray *secondSection = [[NSMutableArray alloc] init];
// for (int i=0; i<50; i++) {
// [firstSection addObject:[NSString stringWithFormat:@”Cell %d”, i]];
// [secondSection addObject:[NSString stringWithFormat:@”item %d”, i]];
// }
// self.dataArray = [[NSArray alloc] initWithObjects:firstSection, secondSection, nil];
//
UINib *cellNib = [UINib nibWithNibName:@”NibCell” bundle:nil];
[self.collectionView1 registerNib:cellNib forCellWithReuseIdentifier:@”cvCell”];
UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc] init];
[flowLayout setItemSize:CGSizeMake(160, 270)];
[flowLayout setScrollDirection:UICollectionViewScrollDirectionVertical];
[self.collectionView1 setCollectionViewLayout:flowLayout];
// collectionView.backgroundColor = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@”bg image”]];
// Do any additional setup after loading the view from its nib.
}
– (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
-(NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView {
// return [self.dataArray count];
return 1;
}
-(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
// NSMutableArray *sectionArray = [self.dataArray objectAtIndex:section];
// return [sectionArray count];
return [self.vendorsList count];
}
-(NibCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
// NSMutableArray *data = [self.dataArray objectAtIndex:indexPath.section];
// NSString *cellData = [data objectAtIndex:0];
static NSString *cellIdentifier = @”cvCell”;
NibCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:cellIdentifier forIndexPath:indexPath];
NSLog(@”%ld”,(long)indexPath.row);
cell.callimgvw.tag = (long)indexPath.item;
Vendor *aVendor = [self.vendorsList objectAtIndex:indexPath.item];
cell.lbl2.text = aVendor.vendorName;
cell.lbl3.text = [self convertHTML:aVendor.vendorDesc];
cell.lbl1.text = [NSString stringWithFormat:@”$%0.2f”,aVendor.price];
NSLog(@”%@”,[self convertHTML:aVendor.vendorDesc]);
if (aVendor.vendorLogo.length > 0) {
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
NSURL *aUrl = [NSURL URLWithString:aVendor.vendorLogo];
UIImage *aImage = [UIImage imageWithData:[NSData dataWithContentsOfURL:aUrl]];
dispatch_async(dispatch_get_main_queue(), ^{
cell.imgvw.image = aImage;
});
});
}
return cell;
}
#pragma mark collection view cell paddings
– (UIEdgeInsets)collectionView:(UICollectionView*)collectionView layout:(UICollectionViewLayout *)collectionViewLayout insetForSectionAtIndex:(NSInteger)section {
return UIEdgeInsetsMake(10, 20, 10, 20); // top, left, bottom, right
}
– (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumInteritemSpacingForSectionAtIndex:(NSInteger)section {
return 0.5;
}
-(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
{
NSLog(@”%ld”,(long)indexPath.row);
// NibCell *cell = (NibCell*)[collectionView cellForItemAtIndexPath:indexPath];
// NSArray *views = [cell.contentView subviews];
// UIButton *label = [views objectAtIndex:0];
// NSLog(@”Select %ld”,(long)label.tag);
}
/*
#pragma mark – Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
– (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/
– (IBAction)clsbtnactn:(id)sender
{
[self.navigationController popToRootViewControllerAnimated:YES];
}
-(NSString *)convertHTML:(NSString *)html {
NSScanner *myScanner;
NSString *text = nil;
myScanner = [NSScanner scannerWithString:html];
while ([myScanner isAtEnd] == NO) {
[myScanner scanUpToString:@”<“ intoString:NULL] ;
[myScanner scanUpToString:@”>” intoString:&text] ;
html = [html stringByReplacingOccurrencesOfString:[NSString stringWithFormat:@”%@>”, text] withString:@””];
}
//
html = [html stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
return html;
}
@end
NibCell.h
#import <UIKit/UIKit.h>
//@protocol CellDelegate <NSObject>
//
//- (void)didClickOnCellAtIndex:(NSInteger)cellIndex withData:(id)data;
//
//@end
@interface NibCell : UICollectionViewCell
@property (strong, nonatomic) IBOutlet UIImageView *callimgvw;
@property (strong, nonatomic) IBOutlet UIImageView *imgvw;
@property (strong, nonatomic) IBOutlet UILabel *lbl1;
@property (strong, nonatomic) IBOutlet UILabel *lbl2;
@property (strong, nonatomic) IBOutlet UILabel *lbl3;
//@property (weak, nonatomic) id<CellDelegate>delegate;
//@property (assign, nonatomic) NSInteger cellIndex;
– (IBAction)pressButton:(id)sender;
@end
NibCell.m
#import “NibCell.h”
@implementation NibCell
@synthesize callimgvw,imgvw;
– (void)awakeFromNib {
// Initialization code
}
– (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
// Initialization code
}
return self;
}
– (IBAction)pressButton:(id)sender {
NSLog(@”%@”,sender);
NSString *str = [NSString stringWithFormat:@”Button Clicked :: %ld”,(long)callimgvw.tag];
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@””
message:str
delegate:nil
cancelButtonTitle:@”OK”
otherButtonTitles:nil];
[alert show];
NSLog(@”%ld”,(long)callimgvw.tag);
}
@end
iOS Development Objective C 