CODEWITHSUNDEEP
iosobjective-ciphoneuitableviewuiview
Yuwen Yan
Yuwen Yan

Reputation: 4935

UIView.hidden doesn't work immediately

I have a UIViewController with a UITableView and UIView (see blow). When I call hiddenLoadingView at somewhere, the UIView is still showing, then dismiss after 10-20 seconds, why?

- (void)viewDidLoad {
    ....
    self.tableView = [[[UITableView alloc] init] autorelease];
    [self.view addSubview:self.tableView];

    self.loadingView = [[[UIView alloc] init] autorelease];
    [self.view addSubview:self.loadingView];
}

- (void)hiddenLoadingView {
    NSLog(@"%@", [NSNumber numberWithBool:self.loadingView.hidden]);
    [self.loadingView setHidden:YES];
    NSLog(@"%@", [NSNumber numberWithBool:self.loadingView.hidden]);
}

Upvotes: 3

Views: 2128

Answers (2)

Supriya Karanje
Supriya Karanje

Reputation: 17

you have to call UI changes From main thread.

dispatch_async(dispatch_get_main_queue(), ^{
// do UI related work here
})

Upvotes: 0

picciano
picciano

Reputation: 22711

Be sure to call hiddenLoadingView from the main thread. Sounds like you might be calling it from the completion block of some asynchronous method.

Upvotes: 3

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