UITabBar无法更改所选索引 [英] UITabBar can't change selected index

问题描述

我无法更改我的UITabBar的索引。我试图从UITabBarController子类更改它。这是我正在尝试的：

I'm having trouble changing the index of my UITabBar. I am attempting to change it from the UITabBarController subclass. This is what I'm trying:

[self.tabBarController setSelectedIndex:1];

这是我的.h看起来像

#import <UIKit/UIKit.h>

@interface CustomTab : UITabBarController <UITabBarControllerDelegate>{
     IBOutlet CustomTab *bar;
}

@end

我正在设置索引与IBAction，该方法正在被调用，但索引不会改变。任何想法？

I am trying to set the index with an IBAction, the method is being called, but the index doesn't change. Any ideas?

推荐答案

因为您正在致电

[self.tabBarController setSelectedIndex:1];

从CustomTab类本身。您需要将其替换为

from inside the CustomTab class itself. You need to replace it with

[self setSelectedIndex:1];

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