objective-c - dismissViewControllerAnimated执行有延迟

Question

点击了tableView在

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath

执行

[self dismissViewControllerAnimated:YES completion:nil];

当前界面不会立即关闭有3-4s延迟，如果再次点击当前界面上任意位置，就会立即关闭。

使用Button执行上面代码进行关闭的时候不出出现这个问题。

Answer 1

I also encountered the exact same problem. It can be solved by adding the following

dispatch_async(dispatch_get_main_queue(), ^{
        [self dismissViewControllerAnimated:NO completion:nil];
    });

I have also printed that the threads are all main threads, but I don’t understand why such a problem occurs
<NSThread: 0x17007a040>{number = 1, name = main}