調用的UIView methdods

Question

我要調用一個用戶定義的函數

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation 

這種方法是否有可能？如果是的話，怎麼樣？ PL。引導我。

Answer 1

此方法應爲custom UIViewController來實現，例如

@interface MyViewController : UIViewController { 
    ... 
} 
-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)io; 
@end 

@implementation MyViewController 
-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)io { 
    return io != UIInterfaceOrientationPortraitUpsideDown; 
} 
@end