CODEWITHSUNDEEP
iosobjective-cuitableviewuiactivityindicatorview
Pinturikkio
Pinturikkio

Reputation: 1500

Activity Indicator doesn't stop in the same method

In the method viewDidLoad I initialize an ActivityIndicatorView.Then, in the following method I sent the activity indicator to start. When I start the app and it runs the if statement, the activity indicator starts, but when operations in the dispatch queue are performed, the activityIndicator is not stopped. Here the method:

-(void) tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{

    if([indexPath row] == [_myArray count]-2){

        [_activityIndicator startAnimating];

        dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND, 0), ^{

            //Here I perform some operations

            [self.tableView reloadData];

            [_activityIndicator stopAnimating];
        });
    }
}

I wish that the activity indicator is stopped after the execution of operations in the dispatch queue!

Upvotes: 2

Views: 1500

Answers (2)

Krivoblotsky
Krivoblotsky

Reputation: 1502

You should perform your UI operations only on main thread. Try to refactor:

dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND, 0), ^{

    //Here I perform some operations

    dispatch_async(dispatch_get_main_queue(), ^{
        [self.tableView reloadData];

        [_activityIndicator stopAnimating];

    });
});

Upvotes: 10

rounak
rounak

Reputation: 9387

All your UI operations should be done on the main thread. That's probably the problem.

Upvotes: 3

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