从未创建 tabBarController 的类访问它？
我正在开发一个 iPhone 应用程序，最终用户首先看到的是带有五个 UIButton 的“主”屏幕。点击这些按钮中的任何一个后，它们都会进入标签栏控制器视图，底部有五个选项卡，对应于（现在）上一个主屏幕上的每个 UIButton。
我目前正在我的应用程序委托中创建选项卡栏控制器，并在同一位置加载主视图控制器。
但我无法让主视图控制器中的 UIButtons 工作。我这样称呼不同的选项卡：
- (void) homeBtnSelect:(UIButton *)button {
if (button == button1) {
self.tabBarController.selectedIndex = 0;
}
if (button == button2) {
self.tabBarController.selectedIndex = 1;
}
//etc etc...
}
我假设我需要将 tabBarController 加载到主视图控制器中。但我不知道该怎么做。有人可以帮忙吗？
如果需要，我可以提供更多代码。提前致谢！
I'm developing an iPhone app, in which the first thing the end user sees is a "home" screen with five UIButtons. Upon tapping any one of those buttons, They're taken to a tab bar controller view with five tabs on the bottom, corresponding to the each of the UIButtons on the (now) previous home screen.
I'm currently creating my tab bar controller in my App Delegate, and loading the home view controller in the same place.
But I can't get the UIButtons in the Home View Controller to work. I call the different tabs like such:
- (void) homeBtnSelect:(UIButton *)button {
if (button == button1) {
self.tabBarController.selectedIndex = 0;
}
if (button == button2) {
self.tabBarController.selectedIndex = 1;
}
//etc etc...
}
I'm assuming I'll need to load the tabBarController into the home view controller. But I don't know how to do that. Can anyone help?
I can provide more code if needed. Thanks in advance!
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为了选择特定的
viewController你必须设置selectedViewController属性......你可以通过从tabBarController.viewControllers数组获取 viewcontroller 来做到这一点......然后设置selectedViewController属性......In order to select particular
viewControlleryou have to setselectedViewControllerproperty..... you can do this by getting viewcontroller fromtabBarController.viewControllersarray..... and then settingselectedViewControllerproperty.......