iphone - 关闭 iPhone 中的 UIAlertView 时发出警告

Question

我收到以下警告-

 warning: passing argument 1 of 'dismissWithClickedButtonIndex:animated:' makes integer from pointer without a cast

[alertForLoading dismissWithClickedButtonIndex:nil animated:YES];

Answer 1

dismissWithClickedButtonIndex:animated期望 aNSInteger作为参数并且您指定 nil。

将 nil 替换为您想要按下的按钮的索引，如下所示：

 [alertForLoading dismissWithClickedButtonIndex:0 animated:YES];

Answer 2

“dismissWithClickedButtonIndex”接受任何整数。此方法调用以下 UIAlertViewDelegate 方法

- (void)alertView:(UIAlertView *)alertView willDismissWithButtonIndex:(NSInteger)buttonIndex

有关更多信息，请参阅参考：UIAlertViewDelegate 协议参考