I am using below code to populate tableview rows. On clicking a row I am reloading table data but row is not being updated. Before iOS 11 it was working fine but after updating to iOS 11 I am facing this issue:
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"DayCell" forIndexPath:indexPath];
UILabel *label = [cell viewWithTag:101];
UIImageView *imageView = [cell viewWithTag:102];
NSArray *days = @[@"Sunday", @"Monday", @"Tuesday", @"Wednesday", @"Thursday", @"Friday", @"Saturday"];
label.text = [days objectAtIndex:indexPath.row];
if ([_selectedDays containsObject:label.text]) {
imageView.image = [UIImage imageNamed:@"CheckedIcon"];
} else {
imageView.image = nil;
}
return cell;
}
And I am reloading data in didSelectRowAtIndexPath like this:
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
[tableView deselectRowAtIndexPath:indexPath animated:NO];
UITableViewCell *cell = [self tableView:tableView cellForRowAtIndexPath:indexPath];
UILabel *label = [cell viewWithTag:101];
if ([_selectedDays containsObject:label.text]) {
[_selectedDays removeObject:label.text];
} else {
[_selectedDays addObject:label.text];
}
[tableView reloadData];
}
Am I doing something wrong?
I got the answer on apple developer forum. I had to declare array of days in interface and initialize it in viewDidLoad
and change code in didSelectRowAtIndexPath
. So now my code looks like this:
@interface SomeTableViewController {
@property (nonatomic, strong) NSArray *days;
@property (nonatomic, strong) NSMutableArray *selectedDays;
}
...
- (void)viewDidLoad {
[super viewDidLoad];
_days = @[@"Sunday", @"Monday", @"Tuesday", @"Wednesday", @"Thursday", @"Friday", @"Saturday"];
_selectedDays = @[];
[tableView reloadData];
...
}
...
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"DayCell" forIndexPath:indexPath];
UILabel *label = [cell viewWithTag:101];
UIImageView *imageView = [cell viewWithTag:102];
NSString *text = _days[indexPath.row];
label.text = text;
if ([_selectedDays containsObject:text]) {
imageView.image = [UIImage imageNamed:@"CheckedIcon"];
} else {
imageView.image = nil;
}
return cell;
}
...
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
[tableView deselectRowAtIndexPath:indexPath animated:NO];
NSString *text = _days[indexPath.row];
if ([_selectedDays containsObject:text]) {
[_selectedDays removeObject:text];
} else {
[_selectedDays addObject:text];
}
[tableView reloadData];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return _days.count;
}
Reference: https://forums.developer.apple.com/message/263637#263637
In didSelectRowAtIndexPath
method add this code with reloadData it works for me
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
.
.
.
.
[tableView reloadData];
[self.view setNeedsDisplay];
}
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