CODEWITHSUNDEEP
objective-ctypesvariable-assignmentcompiler-warnings
Pheepster
Pheepster

Reputation: 6347

Incompatible pointer types warning (in Objective-C)

I'm still a bit green in iOS development and keep getting a warning that I'm not sure about.

I am using a custom cell in a tableview and have set its class to be a subclass of UITableViewCell called SiteCell. In my "didSelectRowAtIndexPath" method when I declare the selected cell as a SiteCell type, I receive the following warning:

Incompatible pointer types initializing SiteCell __strong with an expression of type UITableViewCell

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
    SiteCell *cell = [tableView cellForRowAtIndexPath:indexPath];

    NSString *rowIdentity = [NSString stringWithFormat:@"%d", indexPath.row];
    [selectedRows setObject:[cell.siteTitleLabel text] forKey:rowIdentity];

    if(cell.accessoryType == UITableViewCellAccessoryCheckmark){
        cell.accessoryType = UITableViewCellAccessoryNone;
    }else{
        cell.accessoryType = UITableViewCellAccessoryCheckmark;
    }
}

Can anyone shed any light on how to get rid of this warning?

Upvotes: 3

Views: 7681

Answers (3)

Robert Varga
Robert Varga

Reputation: 477

The right way to do it. You need NSIndexPath

SiteCell *cell = (SiteCell *) [self.tableView cellForRowAtIndexPath:[NSIndexPath indexPathForRow:row inSection:section]];

Upvotes: 1

Chris Loonam
Chris Loonam

Reputation: 5745

Your code should be this since you have to cast the UITableViewCell to your subclass SiteCell

SiteCell *cell = (SiteCell *)[tableView cellForRowAtIndexPath:indexPath];

Upvotes: 3

Hot Licks
Hot Licks

Reputation: 47699

Assuming that cellForRowAtIndexPath is properly coded, and is known to always return a SiteCell, you simply need to cast to SiteCell*:

SiteCell *cell = (SiteCell*)[tableView cellForRowAtIndexPath:indexPath];

Upvotes: 16

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