back button navigation very slow

Asked Dec 16 '16 at 11:04

Active Dec 16 '16 at 12:05

Viewed 1,098 times

I am using following code to push viewcontroller from another viewcontroller .

ProductDetailViewController * productDetails = [self.storyboard instantiateViewControllerWithIdentifier:@"ProductDetailViewController"];
[self.navigationController pushViewController:productDetails animated:YES];

Now this is the code gets called on tap of back button

[self.navigationController popViewControllerAnimated:YES];

Problem is when I tap on back button, navigation becomes very slow. Any suggestion to solve this.

edited Dec 16 '16 at 12:05

Pushkraj Lanjekar

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asked Dec 16 '16 at 11:04

user2931321

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Are you doing any task in ProductDetailViewController's -viewWillDisappear or -viewDidDisappear. – RoHaN Dec 16 '16 at 11:13
no. I am not doing anything – user2931321 Dec 16 '16 at 11:15
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And what about viewDidLoad and viewWillAppear of first view controller ? – Pushkraj Lanjekar Dec 16 '16 at 11:17
Try on main thread – user3575114 Dec 16 '16 at 11:17
You should check this as well...http://stackoverflow.com/questions/8833631/pushviewcontroller-animation-is-slow-choppy – RoHaN Dec 16 '16 at 11:17
@Pushkraj in viewDidAppear I am getting data from webservice – user2931321 Dec 16 '16 at 11:18
@user3575114 tried on main thread but no use. – user2931321 Dec 16 '16 at 11:19
Ok, try to call that method as well on dispatch_async(dispatch_get_main_queue(), ^{ }); so UI will not block. – Pushkraj Lanjekar Dec 16 '16 at 11:19
You should try placing the web service logic in -viewDidLoad. – RoHaN Dec 16 '16 at 11:21
I need to refresh data so thats the reason added in viewDidAppear – user2931321 Dec 16 '16 at 11:23
Well this might be the reason. U sure you're not blocking the main thread in your web service logic? – RoHaN Dec 16 '16 at 11:27
"Refresh Data"...are you using a tableview to display data..is "reloadData" called on main thread? – RoHaN Dec 16 '16 at 11:28
yes reloaddata is called on mainthread – user2931321 Dec 16 '16 at 11:29
Might be similar issue....http://stackoverflow.com/questions/19917928/uinavigationcontroller-pushviewcontroller-pauses-freezes-midway-through – RoHaN Dec 16 '16 at 11:33
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Have you tried this on real iOS device, inspite-of Simulator ? – Yogendra Dec 16 '16 at 13:35

back button navigation very slow

0 Answers0