在启动时，打开指定的ViewController [英] At startup, open the specified ViewController

问题描述

我有两个VC（ ViewController ， SettingsVC ， VC2 ）。

I have two VC (ViewController, SettingsVC, VC2).

如何在应用程序启用开关（位于 SettingsVC ）时进行设置开始它将显示 VC2 ??

How can I make it so that when you turn on the Switch(located in SettingsVC) when the application starts it would be shown VC2??

默认为 ViewController 。

推荐答案

将此代码写入 didFinishLaunchingWithOptions -

Write this code in didFinishLaunchingWithOptions -

let isSwitchOn = UserDefaults.standard.bool(forKey: "isSwitchOn")
if isSwitchOn {
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let vc2 = storyboard.instantiateViewController(withIdentifier: "Your identifier")
self.window!.rootViewController = vc2;
}

设置 isSwitchOn in SettingsVC 喜欢这样 -

Set isSwitchOn in SettingsVC like this -

UserDefaults.standard.set(true, forKey: "isSwitchOn")

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