当从didUpdateLocations CLLocationManagerDelegate方法呈现时，UIAlertController不会被忽略

Question

UIViewController在按下OK键时不会解雇。

printf("Enter a string to reverse: ");
scanf("%s", str1);
size = strlen(str1);
printf("string1 with each character on a new line:\n");
int i;
for(i = 0; i < size; i++)
    printf("%c\n", str1[i]);

printf("string1 printed backwards: \n");

当基于某些标准更改位置时，我必须显示警报。它显示但无法解雇。当我点击OK时，它会在控制台上抛出以下错误。

  __dispatchPreprocessedEventFromEventQueue中的

意外的nil窗口，_windowServerHitTestWindow：＆lt; UIWindow：0x7ff54ac10d80; frame =（0 0; 375 667）; autoresize = W + H; userInteractionEnabled = NO; gestureRecognizers =; layer =＆lt; UIWindowLayer：0x608000030ce0＆gt;＆gt;