Display pdf file from the group folder when UIButton is pressed - iphone

Question

I am trying to use Leaves sample code from GitHub to display pdf file when UIButton is pressed but when executing the project it is giving error
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: [LeavesCache setDataSource:]: unrecognized selector sent to instance
Added Exception breakpoint and found that problem is at this line
From LeavesView.m
pageCache = [[LeavesCache alloc] initWithPageSize:self.bounds.size];
- (void) initialize {
backgroundRendering = NO;
pageCache = [[LeavesCache alloc] initWithPageSize:self.bounds.size];
}
From LeavesCache.m
- (id) initWithPageSize:(CGSize)aPageSize
{
if (self = [super init]) {
pageSize = aPageSize;
pageCache = [[NSMutableDictionary alloc] init];
}
return self;
}
From LeavesView.m
- (void) setDataSource:(id<LeavesViewDataSource>)value {
pageCache.dataSource = value;
}
Difference is that Leaves project is using Tableviewcontroller but i m using collection view controller with the storyboard segue. In detailviewcontroller have a uibutton which displays pdf file when it is pressed. But when pressing that uibutton it is giving error.
Thanks for help.

Answer 1

If you don't have a dataSource for your collection view controller, then you don't need to call it at all. All a dataSource does is tell your class where to look for the data. Your error is that there is no dataSource property in LeavesCache, and you're trying to set one.