Firebase Analytics has a number of stats around "Sessions" (like "Sessions per user" and "Average session length"), but how exactly does Firebase Analytics define a session?
Firebase Analytics围绕“会话”提供了大量统计信息（例如“每个用户的会话数”和“平均会话长度”），但Firebase Analytics究竟如何定义会话？
2 个解决方案
#1
14
And I'll answer my question by saying that Firebase Analytics defines a session as a user engaging with your app for a minimum amount of time (10 seconds by default) followed by your user not engaging with your app for a certain amount of time (30 minutes by default). But you can change those times if you'd like something different.
我会回答我的问题，说Firebase Analytics将会话定义为用户与您的应用程序保持最少的时间（默认为10秒），然后您的用户在一段时间内不与您的应用程序互动（默认为30分钟）。但是如果你想要不同的东西，你可以改变那些时间。
So if a user starts using your app, switches to messaging to send a message, goes back to your app, switches to messaging again to send a quick selfie, then goes back to your app, that's all considered just one session.
因此，如果用户开始使用您的应用程序，切换到消息传递以发送消息，返回到您的应用程序，再次切换到消息传递以发送快速自拍，然后返回到您的应用程序，这都被认为只是一个会话。
Similarly if a user accidentally taps on your app icon and then quickly switches away to open up the app they actually meant to open, that won't get recorded as a session.
同样，如果用户意外地点击了您的应用图标，然后快速切换以打开他们实际打算打开的应用，则不会将其记录为会话。
#2
5
Adding to Todd Kerpelman's response above, you can customize the definition of a session via FirebaseAnalytics.setMinimumSessionDuration(long millis) and FirebaseAnalytics.setSessionTimeoutDuration(long millis).
添加到上面的Todd Kerpelman的响应，您可以通过FirebaseAnalytics.setMinimumSessionDuration（long millis）和FirebaseAnalytics.setSessionTimeoutDuration（long millis）自定义会话的定义。
The docs are at: https://firebase.google.com/docs/reference/android/com/google/firebase/analytics/FirebaseAnalytics
文档位于：https：//firebase.google.com/docs/reference/android/com/google/firebase/analytics/FirebaseAnalytics
(Sorry, don't have the reputation to make this a comment)
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#1
14
And I'll answer my question by saying that Firebase Analytics defines a session as a user engaging with your app for a minimum amount of time (10 seconds by default) followed by your user not engaging with your app for a certain amount of time (30 minutes by default). But you can change those times if you'd like something different.
我会回答我的问题，说Firebase Analytics将会话定义为用户与您的应用程序保持最少的时间（默认为10秒），然后您的用户在一段时间内不与您的应用程序互动（默认为30分钟）。但是如果你想要不同的东西，你可以改变那些时间。
So if a user starts using your app, switches to messaging to send a message, goes back to your app, switches to messaging again to send a quick selfie, then goes back to your app, that's all considered just one session.
因此，如果用户开始使用您的应用程序，切换到消息传递以发送消息，返回到您的应用程序，再次切换到消息传递以发送快速自拍，然后返回到您的应用程序，这都被认为只是一个会话。
Similarly if a user accidentally taps on your app icon and then quickly switches away to open up the app they actually meant to open, that won't get recorded as a session.
同样，如果用户意外地点击了您的应用图标，然后快速切换以打开他们实际打算打开的应用，则不会将其记录为会话。
#2
5
Adding to Todd Kerpelman's response above, you can customize the definition of a session via FirebaseAnalytics.setMinimumSessionDuration(long millis) and FirebaseAnalytics.setSessionTimeoutDuration(long millis).
添加到上面的Todd Kerpelman的响应，您可以通过FirebaseAnalytics.setMinimumSessionDuration（long millis）和FirebaseAnalytics.setSessionTimeoutDuration（long millis）自定义会话的定义。
The docs are at: https://firebase.google.com/docs/reference/android/com/google/firebase/analytics/FirebaseAnalytics
文档位于：https：//firebase.google.com/docs/reference/android/com/google/firebase/analytics/FirebaseAnalytics
(Sorry, don't have the reputation to make this a comment)
（抱歉，没有声誉可以发表评论）