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iOS Development Discussion on developing apps for the iOS platform.

offline json access

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Member Since: Jun 03, 2013
Posts: 1
brinthusha is on a distinguished road

brinthusha is offline
in my app, need to download the json data for the 1st time when the user install the app , then for the 2nd time need to reuse the downloaded data even witout internet connection also. for that i have used "NSUserdefault" but i couldnt access the data in offline.. please help me to sort out this issue.. im really fed up... this is my code:

//load json

-(void)viewDidAppear : (BOOL)animated

_feed = [[data alloc] initFromURLWithString : @""
completion:^(JSONModel *model, JSONModelError *err) {

//json fetched
NSLog(@"Projects: %@", _feed.Projects);

//reload the table view
[self.collectionView reloadData];

-(NSInteger)collectionView : (UICollectionView *)collectionView numberOfItemsInSection : (NSInteger)section
return _feed . Projects . count;

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

NSUserDefaults *saved=[NSUserDefaults standardUserDefaults];

model* bankIcons=_feed . Projects[indexPath . row];

[saved setObject : bankIcons . logo forKey : @"_feed"];

[saved synchronize] ;

NSString *savedval=[[NSUserDefaults standardUserDefaults]stringForKey : @"_feed"];

custom *cell = [collectionView
dequeueReusableCellWithReuseIdentifier : @"Cell"
forIndexPath : indexPath];

UIImage *image = [UIImage imageWithData : [NSData dataWithContentsOfURL : [NSURL URLWithString:savedval]]] ;
cell.displayImage.image = image ;

return cell ;

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