Firebase IOS：警告“setScreenName:screenClass：必须在视图控制器出现后调用”

Question

我想了解我从 Firbase IOS 收到的警告

<FIRAnalytics/WARNING> setScreenName:screenClass: must be called after a view controller has appeared

我的 info.plist 包含

FirebaseAutomaticScreenReportingEnabled = NO

我在打电话

override func viewDidAppear(_ animated: Bool) {
    super.viewDidAppear(animated)
    recordScreenView()    
}

func recordScreenView() {
    // title from the story board
    // These strings must be <= 36 characters long in order for setScreenName:screenClass: to succeed.
    guard let screenName = title else {
        return
    }
    let screenClass = classForCoder.description()

    // [START set_current_screen]
     GCITracking.sharedInstance.trackSetScreenName(screenName, screenClass: screenClass)
    // [END set_current_screen]
}

从示例应用程序中获取的代码

我没有按预期看到我的屏幕事件，但我不确定这是否与我的代码有关还是 GTM 配置问题。

我发现警告信息模棱两可

Answer 1

刚刚在 GTM + Firebase 实现中遇到了这个问题，只需在viewDidAppear方法中调用此方法即可使警告消失：

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated);
        // ...
        Analytics.setScreenName(screenName, screenClass: screenClass)
    }
}

我希望这有帮助。