My iOS app freezes but no error appears

Question

Does any body know what I need to check if app freezes after some time? I mean, I can see the app in the iPhone screen but no view responds.

I did some google and i found that, i've blocked the main thread somehow.

But my question is how to identify which method causes blocking of main thread? is there any way to identify?

Answer 1

Launch your app and wait for it to freeze. Then press the "pause" button in Xcode. The left pane should show you what method is currently running.