UIAlertController:supportedInterfaceOrientations was invoked recursively

来源：互联网发布：海尔cosmo平台知乎编辑：程序博客网时间：2024/06/10 21:19

在使用UIAlertController *sheet = [UIAlertController alertControllerWithTitle:nil message:nil preferredStyle:(UIAlertControllerStyleActionSheet)];时候，

或者使用UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles:@"从相册中选取",@"拍照", nil];

时候，会有奔溃：

UIAlertController:supportedInterfaceOrientations was invoked recursively!

然后我给的解决方案是：

建分类，添加分类方法，避免递归调用。

#import <UIKit/UIKit.h>
@interface UIAlertController (supportedInterfaceOrientations)
@end

#import "UIAlertController+supportedInterfaceOrientations.h"

@implementation UIAlertController (supportedInterfaceOrientations)
#if __IPHONE_OS_VERSION_MAX_ALLOWED < 90000
- (NSUInteger)supportedInterfaceOrientations{
return UIInterfaceOrientationMaskPortrait;
}
#else
- (UIInterfaceOrientationMask)supportedInterfaceOrientations {
return UIInterfaceOrientationMaskPortrait;
}
#endif

@end

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