ios - UIAlertView没有可见的@interface声明选择器

Question

它说

UIAlertView没有可见的@interface清除选择器
'initWithTtile:消息...

这就是我所拥有的

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Error" message:[NSString stringWithFormat:@"Error %@, here is your error", [error description]] delegate: nil cancelbuttonTitle:@"Cancel" otherButtonTitles:nil, nil];

Answer 1

问题出在cancelbuttonTitle B 应该大写。像cancelButtonTitle

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Error" message:[NSString stringWithFormat:@"Error %@, here is your error", [error description]] delegate: nil cancelButtonTitle:@"Cancel" otherButtonTitles:nil, nil];