CODEWITHSUNDEEP
iosobjective-cuitableview
Pacemaker
Pacemaker

Reputation: 1117

UITableView Cells disappear after scrolling down then back up

I have a UIViewController with a UITableView that has custom cells inside it. The tableview creates cells correctly initially. When I scroll Down then go back up all cells disappear. my view controller is the UITableviewDelegate and UITableViewDataSource Delegate. I am implementing all required methods, namely: cellForRowAtIndexPath, numberOfRowsInSection,willDisplayCell. I am using the standard code used to display a custom tableview. Here is the tutorial I followed strictly: https://medium.com/@musawiralishah/creating-custom-uitableviewcell-using-nib-xib-files-in-xcode-9bee5824e722

My question is more abstract than technical: What causes cells to disappear upon scrolling back up? I know it has to do with cell reuse but I am using willDisplayCell to properly set content, and does the indexpath change indexes upon scrolling.\

Thanks for any clarification, hint etc.

Upvotes: 0

Views: 1387

Answers (1)

Fawad Masud
Fawad Masud

Reputation: 12344

When the properties of cell are created and added in the method cellForRowAtIndexPath such problems occur. Create the properties in the custom class and access them after declaring custom class. For example you have a custom class named TableCell,in viewDidLoad 

[yourTable registerNib:[UINib nibWithNibName:@"TableCell" bundle:nil] forCellReuseIdentifier:@"CELL"];

in cellForRowAtIndexPath

TableCell *cell = [tableView dequeueReusableCellWithIdentifier:@"CELL" forIndexPath:indexPath];
cell.property1 = attribute1;  //property1 already created in class TableCell

Upvotes: 1

Related Questions