ios - 找出superview的类名

Question

我的 View Controller StartViewController 由其他两个 View Controller (RootViewController 或 TelnetAddressbookViewController)之一打开/添加(addSubview)。我试图找出这两个中的哪一个是启动 StartViewController 的那个。

NSLog(@"superview %@",self.view.superview.description);
NSLog(@"superview %@",self.superclass);

if ([self.view.superview isKindOfClass:[RootViewController class]]) {

    NSLog(@"launched by RootViewController");

}else if ([self.view.superview isKindOfClass:[TelnetAddressbookViewController class]]) {

    NSLog(@"launched TelnetAddressbookViewController");
}

[self.view removeFromSuperview];

第一个 NSLOG (self.view.superview.description) 输出:

superview UIView: 0x81d6710; frame = (0 0; 748 1024); transform = [0, 1, -1, 0, 0, 0]; autoresize = RM+BM; layer = >

它的引用是我需要的(0x81d6710)，但它的类是 UIViewController 而不是我的自定义 View Controller 。

Answer 1

代替

NSLog(@"superview %@",self.view.superview.description);

你要...

#import <objc/runtime.h>
NSLog(@"superview %s",class_getName([self.view.superview class]) );
/* or if you want an NSString */
NSLog(@"superview %@", NSStringFromClass([self.view.superview class]) );