iOS/ cocoa : UIAlertView throwing EXC_BAD_ACCESS

Question

似乎是一个令人震惊的微不足道的差异。将 otherButtonTitles 的非 nil 值传递给 UIAlerView 会爆炸。

工作:

UIAlertView *alert = [[UIAlertView alloc]
                      initWithTitle:@"Login with your credentials"
                      message:nil
                      delegate:nil
                      cancelButtonTitle:@"Cancel"
                      otherButtonTitles:nil];

不工作:

UIAlertView *alert = [[UIAlertView alloc]
                      initWithTitle:@"Login with your credentials"
                      message:nil
                      delegate:nil
                      cancelButtonTitle:@"Cancel"
                      otherButtonTitles:@"OK"];

什么给了？

Answer 1

UIAlertView *alert = [[UIAlertView alloc]
                      initWithTitle:@"Login with your credentials"
                      message:nil
                      delegate:nil
                      cancelButtonTitle:@"Cancel"
                      otherButtonTitles:@"OK1",@"OK2",nil];

最后一个参数是一个多参数，应该以 nil 结尾。